[V7] go: Add recipes for golang compilers and tools

Message ID 20170303231811.27812-1-raj.khem@gmail.com
State Superseded
Headers show

Commit Message

Khem Raj March 3, 2017, 11:18 p.m.
* This is converging the recipes for go from
  meta-virtualization and oe-meta-go

* Add recipes for go 1.7

* go.bbclass is added to ease out writing
  recipes for go packages

* go-examples: Add an example, helloworld written in go
  This should serve as temlate for writing go recipes

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 meta/classes/go.bbclass                            |  72 +++++++
 meta/classes/goarch.bbclass                        |  46 +++++
 meta/recipes-devtools/go/go-1.4.inc                |  16 ++
 ...alignment-for-the-.rel.plt-section-on-32-.patch |  30 +++
 .../go/go-1.4/016-armhf-elf-header.patch           |  24 +++
 ...ckport-cmd-link-support-new-386-amd64-rel.patch | 225 +++++++++++++++++++++
 meta/recipes-devtools/go/go-1.4/syslog.patch       |  62 ++++++
 meta/recipes-devtools/go/go-1.6.inc                |  19 ++
 .../go/go-1.6/armhf-elf-header.patch               |  23 +++
 .../go/go-1.6/fix-cc-handling.patch                |  50 +++++
 .../go/go-1.6/fix-target-cc-for-build.patch        |  17 ++
 meta/recipes-devtools/go/go-1.6/gotooldir.patch    |  30 +++
 .../go/go-1.6/split-host-and-target-build.patch    |  63 ++++++
 meta/recipes-devtools/go/go-1.6/syslog.patch       |  62 ++++++
 meta/recipes-devtools/go/go-1.7.inc                |  19 ++
 .../go/go-1.7/armhf-elf-header.patch               |  23 +++
 .../go/go-1.7/fix-cc-handling.patch                |  50 +++++
 .../go/go-1.7/fix-target-cc-for-build.patch        |  17 ++
 meta/recipes-devtools/go/go-1.7/gotooldir.patch    |  30 +++
 .../go/go-1.7/split-host-and-target-build.patch    |  62 ++++++
 meta/recipes-devtools/go/go-1.7/syslog.patch       |  62 ++++++
 meta/recipes-devtools/go/go-common.inc             |  22 ++
 meta/recipes-devtools/go/go-cross.inc              |  10 +
 meta/recipes-devtools/go/go-cross_1.7.bb           |   5 +
 meta/recipes-devtools/go/go-native.inc             |  54 +++++
 meta/recipes-devtools/go/go-native_1.4.bb          |   2 +
 meta/recipes-devtools/go/go.inc                    |  80 ++++++++
 meta/recipes-devtools/go/go_1.6.bb                 |   4 +
 meta/recipes-devtools/go/go_1.7.bb                 |   2 +
 .../go-examples/files/helloworld.go                |  10 +
 meta/recipes-extended/go-examples/go-examples.inc  |  10 +
 .../go-examples/go-helloworld_0.1.bb               |  13 ++
 32 files changed, 1214 insertions(+)
 create mode 100644 meta/classes/go.bbclass
 create mode 100644 meta/classes/goarch.bbclass
 create mode 100644 meta/recipes-devtools/go/go-1.4.inc
 create mode 100644 meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
 create mode 100644 meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
 create mode 100644 meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
 create mode 100644 meta/recipes-devtools/go/go-1.4/syslog.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6.inc
 create mode 100644 meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6/gotooldir.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
 create mode 100644 meta/recipes-devtools/go/go-1.6/syslog.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7.inc
 create mode 100644 meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7/gotooldir.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
 create mode 100644 meta/recipes-devtools/go/go-1.7/syslog.patch
 create mode 100644 meta/recipes-devtools/go/go-common.inc
 create mode 100644 meta/recipes-devtools/go/go-cross.inc
 create mode 100644 meta/recipes-devtools/go/go-cross_1.7.bb
 create mode 100644 meta/recipes-devtools/go/go-native.inc
 create mode 100644 meta/recipes-devtools/go/go-native_1.4.bb
 create mode 100644 meta/recipes-devtools/go/go.inc
 create mode 100644 meta/recipes-devtools/go/go_1.6.bb
 create mode 100644 meta/recipes-devtools/go/go_1.7.bb
 create mode 100644 meta/recipes-extended/go-examples/files/helloworld.go
 create mode 100644 meta/recipes-extended/go-examples/go-examples.inc
 create mode 100644 meta/recipes-extended/go-examples/go-helloworld_0.1.bb

Comments

Leonardo Sandoval March 6, 2017, 3:05 p.m. | #1
For the moment, manually cutting & pasting patchtest results:


* Issue             Added patch file is missing Upstream-Status in the
header [test_upstream_status_presence] 
  Suggested fix    Add Upstream-Status: <status> to the header of
meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch (possible values: Pending, Submitted, Accepted, Backport, Denied, Inappropriate)

* Issue             A patch file has been added, but does not have a
Signed-off-by tag [test_signed_off_by_presence] 
  Suggested fix    Sign off the added patch file
(meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch)




On Fri, 2017-03-03 at 15:18 -0800, Khem Raj wrote:
> * This is converging the recipes for go from
>   meta-virtualization and oe-meta-go
> 
> * Add recipes for go 1.7
> 
> * go.bbclass is added to ease out writing
>   recipes for go packages
> 
> * go-examples: Add an example, helloworld written in go
>   This should serve as temlate for writing go recipes
> 
> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> ---
>  meta/classes/go.bbclass                            |  72 +++++++
>  meta/classes/goarch.bbclass                        |  46 +++++
>  meta/recipes-devtools/go/go-1.4.inc                |  16 ++
>  ...alignment-for-the-.rel.plt-section-on-32-.patch |  30 +++
>  .../go/go-1.4/016-armhf-elf-header.patch           |  24 +++
>  ...ckport-cmd-link-support-new-386-amd64-rel.patch | 225 +++++++++++++++++++++
>  meta/recipes-devtools/go/go-1.4/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-1.6.inc                |  19 ++
>  .../go/go-1.6/armhf-elf-header.patch               |  23 +++
>  .../go/go-1.6/fix-cc-handling.patch                |  50 +++++
>  .../go/go-1.6/fix-target-cc-for-build.patch        |  17 ++
>  meta/recipes-devtools/go/go-1.6/gotooldir.patch    |  30 +++
>  .../go/go-1.6/split-host-and-target-build.patch    |  63 ++++++
>  meta/recipes-devtools/go/go-1.6/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-1.7.inc                |  19 ++
>  .../go/go-1.7/armhf-elf-header.patch               |  23 +++
>  .../go/go-1.7/fix-cc-handling.patch                |  50 +++++
>  .../go/go-1.7/fix-target-cc-for-build.patch        |  17 ++
>  meta/recipes-devtools/go/go-1.7/gotooldir.patch    |  30 +++
>  .../go/go-1.7/split-host-and-target-build.patch    |  62 ++++++
>  meta/recipes-devtools/go/go-1.7/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-common.inc             |  22 ++
>  meta/recipes-devtools/go/go-cross.inc              |  10 +
>  meta/recipes-devtools/go/go-cross_1.7.bb           |   5 +
>  meta/recipes-devtools/go/go-native.inc             |  54 +++++
>  meta/recipes-devtools/go/go-native_1.4.bb          |   2 +
>  meta/recipes-devtools/go/go.inc                    |  80 ++++++++
>  meta/recipes-devtools/go/go_1.6.bb                 |   4 +
>  meta/recipes-devtools/go/go_1.7.bb                 |   2 +
>  .../go-examples/files/helloworld.go                |  10 +
>  meta/recipes-extended/go-examples/go-examples.inc  |  10 +
>  .../go-examples/go-helloworld_0.1.bb               |  13 ++
>  32 files changed, 1214 insertions(+)
>  create mode 100644 meta/classes/go.bbclass
>  create mode 100644 meta/classes/goarch.bbclass
>  create mode 100644 meta/recipes-devtools/go/go-1.4.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/gotooldir.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/gotooldir.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-common.inc
>  create mode 100644 meta/recipes-devtools/go/go-cross.inc
>  create mode 100644 meta/recipes-devtools/go/go-cross_1.7.bb
>  create mode 100644 meta/recipes-devtools/go/go-native.inc
>  create mode 100644 meta/recipes-devtools/go/go-native_1.4.bb
>  create mode 100644 meta/recipes-devtools/go/go.inc
>  create mode 100644 meta/recipes-devtools/go/go_1.6.bb
>  create mode 100644 meta/recipes-devtools/go/go_1.7.bb
>  create mode 100644 meta/recipes-extended/go-examples/files/helloworld.go
>  create mode 100644 meta/recipes-extended/go-examples/go-examples.inc
>  create mode 100644 meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> 
> diff --git a/meta/classes/go.bbclass b/meta/classes/go.bbclass
> new file mode 100644
> index 0000000..e6ea996
> --- /dev/null
> +++ b/meta/classes/go.bbclass
> @@ -0,0 +1,72 @@
> +inherit goarch
> +
> +GOROOT_class-native = "${STAGING_LIBDIR_NATIVE}/go"
> +GOROOT = "${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go"
> +GOBIN_FINAL_class-native = "${GOROOT_FINAL}/bin"
> +GOBIN_FINAL = "${GOROOT_FINAL}/bin/${GOOS}_${GOARCH}"
> +
> +export GOOS = "${TARGET_GOOS}"
> +export GOARCH = "${TARGET_GOARCH}"
> +export GOARM = "${TARGET_GOARM}"
> +export CGO_ENABLED = "1"
> +export GOROOT
> +export GOROOT_FINAL = "${libdir}/${TARGET_SYS}/go"
> +export GOBIN_FINAL
> +export GOPKG_FINAL = "${GOROOT_FINAL}/pkg/${GOOS}_${GOARCH}"
> +export GOSRC_FINAL = "${GOROOT_FINAL}/src"
> +export GO_GCFLAGS = "${TARGET_CFLAGS}"
> +export GO_LDFLAGS = "${TARGET_LDFLAGS}"
> +export CGO_CFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CFLAGS}"
> +export CGO_CPPFLAGS = "${TARGET_CPPFLAGS}"
> +export CGO_CXXFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CXXFLAGS}"
> +export CGO_LDFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_LDFLAGS}"
> +
> +DEPENDS += "go-cross-${TARGET_ARCH}"
> +DEPENDS_class-native += "go-native"
> +
> +FILES_${PN}-staticdev += "${GOSRC_FINAL}/${GO_IMPORT}"
> +FILES_${PN}-staticdev += "${GOPKG_FINAL}/${GO_IMPORT}*"
> +
> +GO_INSTALL ?= "${GO_IMPORT}/..."
> +
> +do_go_compile() {
> +	GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
> +	if test -n "${GO_INSTALL}" ; then
> +		GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}
> +	fi
> +}
> +
> +do_go_install() {
> +	rm -rf ${WORKDIR}/staging
> +	install -d ${WORKDIR}/staging${GOROOT_FINAL} ${D}${GOROOT_FINAL}
> +	tar -C ${S} -cf - . | tar -C ${WORKDIR}/staging${GOROOT_FINAL} -xpvf -
> +
> +	find ${WORKDIR}/staging${GOROOT_FINAL} \( \
> +		-name \*.indirectionsymlink -o \
> +		-name .git\* -o                \
> +		-name .hg -o                   \
> +		-name .svn -o                  \
> +		-name .pc\* -o                 \
> +		-name patches\*                \
> +		\) -print0 | \
> +	xargs -r0 rm -rf
> +
> +	tar -C ${WORKDIR}/staging${GOROOT_FINAL} -cf - . | \
> +	tar -C ${D}${GOROOT_FINAL} -xpvf -
> +
> +	chown -R root:root "${D}${GOROOT_FINAL}"
> +
> +	if test -e "${D}${GOBIN_FINAL}" ; then
> +		install -d -m 0755 "${D}${bindir}"
> +		find "${D}${GOBIN_FINAL}" ! -type d -print0 | xargs -r0 mv --target-directory="${D}${bindir}"
> +		rmdir -p "${D}${GOBIN_FINAL}" || true
> +	fi
> +}
> +
> +do_compile() {
> +	do_go_compile
> +}
> +
> +do_install() {
> +	do_go_install
> +}
> diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
> new file mode 100644
> index 0000000..119703c
> --- /dev/null
> +++ b/meta/classes/goarch.bbclass
> @@ -0,0 +1,46 @@
> +BUILD_GOOS = "${@go_map_os(d.getVar('BUILD_OS', True), d)}"
> +BUILD_GOARCH = "${@go_map_arch(d.getVar('BUILD_ARCH', True), d)}"
> +BUILD_GOTUPLE = "${BUILD_GOOS}_${BUILD_GOARCH}"
> +HOST_GOOS = "${@go_map_os(d.getVar('HOST_OS', True), d)}"
> +HOST_GOARCH = "${@go_map_arch(d.getVar('HOST_ARCH', True), d)}"
> +HOST_GOARM = "${@go_map_arm(d.getVar('HOST_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> +HOST_GOTUPLE = "${HOST_GOOS}_${HOST_GOARCH}"
> +TARGET_GOOS = "${@go_map_os(d.getVar('TARGET_OS', True), d)}"
> +TARGET_GOARCH = "${@go_map_arch(d.getVar('TARGET_ARCH', True), d)}"
> +TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> +TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
> +GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE',True) == d.getVar('HOST_GOTUPLE',True)]}"
> +
> +def go_map_arch(a, d):
> +    import re
> +    if re.match('i.86', a):
> +        return '386'
> +    elif a == 'x86_64':
> +        return 'amd64'
> +    elif re.match('arm.*', a):
> +        return 'arm'
> +    elif re.match('aarch64.*', a):
> +        return 'arm64'
> +    elif re.match('mips64el*', a):
> +        return 'mips64le'
> +    elif re.match('mips64*', a):
> +        return 'mips64'
> +    elif re.match('p(pc|owerpc)(64)', a):
> +        return 'ppc64'
> +    elif re.match('p(pc|owerpc)(64el)', a):
> +        return 'ppc64le'
> +    else:
> +        raise bb.parse.SkipPackage("Unsupported CPU architecture: %s" % a)
> +
> +def go_map_arm(a, f, d):
> +    import re
> +    if re.match('arm.*', a) and re.match('arm.*7.*', f):
> +        return '7'
> +    return ''
> +
> +def go_map_os(o, d):
> +    if o.startswith('linux'):
> +        return 'linux'
> +    return o
> +
> +
> diff --git a/meta/recipes-devtools/go/go-1.4.inc b/meta/recipes-devtools/go/go-1.4.inc
> new file mode 100644
> index 0000000..2f500f3
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4.inc
> @@ -0,0 +1,16 @@
> +require go-common.inc
> +
> +PV = "1.4.3"
> +GO_BASEVERSION = "1.4"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +SRC_URI += "\
> +        file://016-armhf-elf-header.patch \
> +        file://go-cross-backport-cmd-link-support-new-386-amd64-rel.patch \
> +        file://syslog.patch \
> +        file://0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch \
> +"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
> +SRC_URI[md5sum] = "dfb604511115dd402a77a553a5923a04"
> +SRC_URI[sha256sum] = "9947fc705b0b841b5938c48b22dc33e9647ec0752bae66e50278df4f23f64959"
> diff --git a/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
> new file mode 100644
> index 0000000..4cfa9d1
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
> @@ -0,0 +1,30 @@
> +From 855145d5c03c4b4faf60736c38d7a299c682af4a Mon Sep 17 00:00:00 2001
> +From: Shenghou Ma <minux@golang.org>
> +Date: Sat, 7 Feb 2015 14:06:02 -0500
> +Subject: [PATCH] cmd/ld: set alignment for the .rel.plt section on 32-bit
> + architectures
> +
> +Fixes #9802.
> +
> +Change-Id: I22c52a37bdb23a14cc4615c9519431bb14ca81ca
> +Reviewed-on: https://go-review.googlesource.com/4170
> +Reviewed-by: Ian Lance Taylor <iant@golang.org>
> +---
> + src/cmd/ld/elf.c | 1 +
> + 1 file changed, 1 insertion(+)
> +
> +diff --git a/src/cmd/ld/elf.c b/src/cmd/ld/elf.c
> +index 12ced98..97ed4bd 100644
> +--- a/src/cmd/ld/elf.c
> ++++ b/src/cmd/ld/elf.c
> +@@ -1363,6 +1363,7 @@ asmbelf(vlong symo)
> + 			sh->type = SHT_REL;
> + 			sh->flags = SHF_ALLOC;
> + 			sh->entsize = ELF32RELSIZE;
> ++			sh->addralign = 4;
> + 			sh->link = elfshname(".dynsym")->shnum;
> + 			shsym(sh, linklookup(ctxt, ".rel.plt", 0));
> + 
> +-- 
> +1.9.1
> +
> diff --git a/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
> new file mode 100644
> index 0000000..e6e414e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
> @@ -0,0 +1,24 @@
> +Description: Use correct ELF header for armhf binaries.
> +Author: Adam Conrad <adconrad@ubuntu.com>
> +Last-Update: 2013-07-08
> +
> +Upstream-Status: Pending
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +
> +Index: go/src/cmd/ld/elf.c
> +===================================================================
> +--- go.orig/src/cmd/ld/elf.c	2015-02-20 10:49:58.763451586 -0800
> ++++ go/src/cmd/ld/elf.c	2015-02-20 10:49:27.895478521 -0800
> +@@ -57,7 +57,11 @@
> + 	case '5':
> + 		// we use EABI on both linux/arm and freebsd/arm.
> + 		if(HEADTYPE == Hlinux || HEADTYPE == Hfreebsd)
> +-			hdr.flags = 0x5000002; // has entry point, Version5 EABI
> ++#ifdef __ARM_PCS_VFP
> ++			hdr.flags = 0x5000402; // has entry point, Version5 EABI, hard-float ABI
> ++#else
> ++			hdr.flags = 0x5000202; // has entry point, Version5 EABI, soft-float ABI
> ++#endif
> + 		// fallthrough
> + 	default:
> + 		hdr.phoff = ELF32HDRSIZE;	/* Must be be ELF32HDRSIZE: first PHdr must follow ELF header */
> diff --git a/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
> new file mode 100644
> index 0000000..95ca9d3
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
> @@ -0,0 +1,225 @@
> +From d6eefad445831c161fca130f9bdf7b3848aac23c Mon Sep 17 00:00:00 2001
> +From: Paul Gortmaker <paul.gortmaker@windriver.com>
> +Date: Tue, 29 Mar 2016 21:14:33 -0400
> +Subject: [PATCH] go-cross: backport "cmd/link: support new 386/amd64
> + relocations"
> +
> +Newer binutils won't support building older go-1.4.3 as per:
> +
> +https://github.com/golang/go/issues/13114
> +
> +Upstream commit 914db9f060b1fd3eb1f74d48f3bd46a73d4ae9c7 (see subj)
> +was identified as the fix and nominated for 1.4.4 but that release
> +never happened.  The paths in 1.4.3 aren't the same as go1.6beta1~662
> +where this commit appeared, but the NetBSD folks indicated what a
> +1.4.3 backport would look like here: https://gnats.netbsd.org/50777
> +
> +This is based on that, but without the BSD wrapper infrastructure
> +layer that makes things look like patches of patches.
> +
> +Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> +
> +Upstream-Status: Backport [ Partial ]
> +
> +diff --git a/src/cmd/6l/asm.c b/src/cmd/6l/asm.c
> +index 18b5aa311981..2e9d339aef87 100644
> +--- a/src/cmd/6l/asm.c
> ++++ b/src/cmd/6l/asm.c
> +@@ -118,6 +118,8 @@ adddynrel(LSym *s, Reloc *r)
> + 		return;
> + 	
> + 	case 256 + R_X86_64_GOTPCREL:
> ++	case 256 + R_X86_64_GOTPCRELX:
> ++	case 256 + R_X86_64_REX_GOTPCRELX:
> + 		if(targ->type != SDYNIMPORT) {
> + 			// have symbol
> + 			if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
> +diff --git a/src/cmd/8l/asm.c b/src/cmd/8l/asm.c
> +index 98c04240374f..cff29488e8af 100644
> +--- a/src/cmd/8l/asm.c
> ++++ b/src/cmd/8l/asm.c
> +@@ -115,6 +115,7 @@ adddynrel(LSym *s, Reloc *r)
> + 		return;		
> + 	
> + 	case 256 + R_386_GOT32:
> ++	case 256 + R_386_GOT32X:
> + 		if(targ->type != SDYNIMPORT) {
> + 			// have symbol
> + 			if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
> +diff --git a/src/cmd/ld/elf.h b/src/cmd/ld/elf.h
> +index e84d996f2596..bbf2cfaa3cc0 100644
> +--- a/src/cmd/ld/elf.h
> ++++ b/src/cmd/ld/elf.h
> +@@ -478,32 +478,47 @@ typedef struct {
> +  * Relocation types.
> +  */
> + 
> +-#define	R_X86_64_NONE	0	/* No relocation. */
> +-#define	R_X86_64_64	1	/* Add 64 bit symbol value. */
> +-#define	R_X86_64_PC32	2	/* PC-relative 32 bit signed sym value. */
> +-#define	R_X86_64_GOT32	3	/* PC-relative 32 bit GOT offset. */
> +-#define	R_X86_64_PLT32	4	/* PC-relative 32 bit PLT offset. */
> +-#define	R_X86_64_COPY	5	/* Copy data from shared object. */
> +-#define	R_X86_64_GLOB_DAT 6	/* Set GOT entry to data address. */
> +-#define	R_X86_64_JMP_SLOT 7	/* Set GOT entry to code address. */
> +-#define	R_X86_64_RELATIVE 8	/* Add load address of shared object. */
> +-#define	R_X86_64_GOTPCREL 9	/* Add 32 bit signed pcrel offset to GOT. */
> +-#define	R_X86_64_32	10	/* Add 32 bit zero extended symbol value */
> +-#define	R_X86_64_32S	11	/* Add 32 bit sign extended symbol value */
> +-#define	R_X86_64_16	12	/* Add 16 bit zero extended symbol value */
> +-#define	R_X86_64_PC16	13	/* Add 16 bit signed extended pc relative symbol value */
> +-#define	R_X86_64_8	14	/* Add 8 bit zero extended symbol value */
> +-#define	R_X86_64_PC8	15	/* Add 8 bit signed extended pc relative symbol value */
> +-#define	R_X86_64_DTPMOD64 16	/* ID of module containing symbol */
> +-#define	R_X86_64_DTPOFF64 17	/* Offset in TLS block */
> +-#define	R_X86_64_TPOFF64 18	/* Offset in static TLS block */
> +-#define	R_X86_64_TLSGD	19	/* PC relative offset to GD GOT entry */
> +-#define	R_X86_64_TLSLD	20	/* PC relative offset to LD GOT entry */
> +-#define	R_X86_64_DTPOFF32 21	/* Offset in TLS block */
> +-#define	R_X86_64_GOTTPOFF 22	/* PC relative offset to IE GOT entry */
> +-#define	R_X86_64_TPOFF32 23	/* Offset in static TLS block */
> +-
> +-#define	R_X86_64_COUNT	24	/* Count of defined relocation types. */
> ++#define	R_X86_64_NONE           0
> ++#define	R_X86_64_64             1
> ++#define	R_X86_64_PC32           2
> ++#define	R_X86_64_GOT32          3
> ++#define	R_X86_64_PLT32          4
> ++#define	R_X86_64_COPY           5
> ++#define	R_X86_64_GLOB_DAT       6
> ++#define	R_X86_64_JMP_SLOT       7
> ++#define	R_X86_64_RELATIVE       8
> ++#define	R_X86_64_GOTPCREL       9
> ++#define	R_X86_64_32             10
> ++#define	R_X86_64_32S            11
> ++#define	R_X86_64_16             12
> ++#define	R_X86_64_PC16           13
> ++#define	R_X86_64_8              14
> ++#define	R_X86_64_PC8            15
> ++#define	R_X86_64_DTPMOD64       16
> ++#define	R_X86_64_DTPOFF64       17
> ++#define	R_X86_64_TPOFF64        18
> ++#define	R_X86_64_TLSGD          19
> ++#define	R_X86_64_TLSLD          20
> ++#define	R_X86_64_DTPOFF32       21
> ++#define	R_X86_64_GOTTPOFF       22
> ++#define	R_X86_64_TPOFF32        23
> ++#define	R_X86_64_PC64           24
> ++#define	R_X86_64_GOTOFF64       25
> ++#define	R_X86_64_GOTPC32        26
> ++#define	R_X86_64_GOT64          27
> ++#define	R_X86_64_GOTPCREL64     28
> ++#define	R_X86_64_GOTPC64        29
> ++#define	R_X86_64_GOTPLT64       30
> ++#define	R_X86_64_PLTOFF64       31
> ++#define	R_X86_64_SIZE32         32
> ++#define	R_X86_64_SIZE64         33
> ++#define	R_X86_64_GOTPC32_TLSDEC 34
> ++#define	R_X86_64_TLSDESC_CALL   35
> ++#define	R_X86_64_TLSDESC        36
> ++#define	R_X86_64_IRELATIVE      37
> ++#define	R_X86_64_PC32_BND       40
> ++#define	R_X86_64_GOTPCRELX      41
> ++#define	R_X86_64_REX_GOTPCRELX  42
> + 
> + 
> + #define	R_ALPHA_NONE		0	/* No reloc */
> +@@ -581,39 +596,42 @@ typedef struct {
> + #define	R_ARM_COUNT		38	/* Count of defined relocation types. */
> + 
> + 
> +-#define	R_386_NONE	0	/* No relocation. */
> +-#define	R_386_32	1	/* Add symbol value. */
> +-#define	R_386_PC32	2	/* Add PC-relative symbol value. */
> +-#define	R_386_GOT32	3	/* Add PC-relative GOT offset. */
> +-#define	R_386_PLT32	4	/* Add PC-relative PLT offset. */
> +-#define	R_386_COPY	5	/* Copy data from shared object. */
> +-#define	R_386_GLOB_DAT	6	/* Set GOT entry to data address. */
> +-#define	R_386_JMP_SLOT	7	/* Set GOT entry to code address. */
> +-#define	R_386_RELATIVE	8	/* Add load address of shared object. */
> +-#define	R_386_GOTOFF	9	/* Add GOT-relative symbol address. */
> +-#define	R_386_GOTPC	10	/* Add PC-relative GOT table address. */
> +-#define	R_386_TLS_TPOFF	14	/* Negative offset in static TLS block */
> +-#define	R_386_TLS_IE	15	/* Absolute address of GOT for -ve static TLS */
> +-#define	R_386_TLS_GOTIE	16	/* GOT entry for negative static TLS block */
> +-#define	R_386_TLS_LE	17	/* Negative offset relative to static TLS */
> +-#define	R_386_TLS_GD	18	/* 32 bit offset to GOT (index,off) pair */
> +-#define	R_386_TLS_LDM	19	/* 32 bit offset to GOT (index,zero) pair */
> +-#define	R_386_TLS_GD_32	24	/* 32 bit offset to GOT (index,off) pair */
> +-#define	R_386_TLS_GD_PUSH 25	/* pushl instruction for Sun ABI GD sequence */
> +-#define	R_386_TLS_GD_CALL 26	/* call instruction for Sun ABI GD sequence */
> +-#define	R_386_TLS_GD_POP 27	/* popl instruction for Sun ABI GD sequence */
> +-#define	R_386_TLS_LDM_32 28	/* 32 bit offset to GOT (index,zero) pair */
> +-#define	R_386_TLS_LDM_PUSH 29	/* pushl instruction for Sun ABI LD sequence */
> +-#define	R_386_TLS_LDM_CALL 30	/* call instruction for Sun ABI LD sequence */
> +-#define	R_386_TLS_LDM_POP 31	/* popl instruction for Sun ABI LD sequence */
> +-#define	R_386_TLS_LDO_32 32	/* 32 bit offset from start of TLS block */
> +-#define	R_386_TLS_IE_32	33	/* 32 bit offset to GOT static TLS offset entry */
> +-#define	R_386_TLS_LE_32	34	/* 32 bit offset within static TLS block */
> +-#define	R_386_TLS_DTPMOD32 35	/* GOT entry containing TLS index */
> +-#define	R_386_TLS_DTPOFF32 36	/* GOT entry containing TLS offset */
> +-#define	R_386_TLS_TPOFF32 37	/* GOT entry of -ve static TLS offset */
> +-
> +-#define	R_386_COUNT	38	/* Count of defined relocation types. */
> ++#define	R_386_NONE          0
> ++#define	R_386_32            1
> ++#define	R_386_PC32          2
> ++#define	R_386_GOT32         3
> ++#define	R_386_PLT32         4
> ++#define	R_386_COPY          5
> ++#define	R_386_GLOB_DAT      6
> ++#define	R_386_JMP_SLOT      7
> ++#define	R_386_RELATIVE      8
> ++#define	R_386_GOTOFF        9
> ++#define	R_386_GOTPC         10
> ++#define	R_386_TLS_TPOFF     14
> ++#define	R_386_TLS_IE        15
> ++#define	R_386_TLS_GOTIE     16
> ++#define	R_386_TLS_LE        17
> ++#define	R_386_TLS_GD        18
> ++#define	R_386_TLS_LDM       19
> ++#define	R_386_TLS_GD_32     24
> ++#define	R_386_TLS_GD_PUSH   25
> ++#define	R_386_TLS_GD_CALL   26
> ++#define	R_386_TLS_GD_POP    27
> ++#define	R_386_TLS_LDM_32    28
> ++#define	R_386_TLS_LDM_PUSH  29
> ++#define	R_386_TLS_LDM_CALL  30
> ++#define	R_386_TLS_LDM_POP   31
> ++#define	R_386_TLS_LDO_32    32
> ++#define	R_386_TLS_IE_32     33
> ++#define	R_386_TLS_LE_32     34
> ++#define	R_386_TLS_DTPMOD32  35
> ++#define	R_386_TLS_DTPOFF32  36
> ++#define	R_386_TLS_TPOFF32   37
> ++#define	R_386_TLS_GOTDESC   39
> ++#define	R_386_TLS_DESC_CALL 40
> ++#define	R_386_TLS_DESC      41
> ++#define	R_386_IRELATIVE     42
> ++#define	R_386_GOT32X        43
> + 
> + #define	R_PPC_NONE		0	/* No relocation. */
> + #define	R_PPC_ADDR32		1
> +diff --git a/src/cmd/ld/ldelf.c b/src/cmd/ld/ldelf.c
> +index dd5fa0d2a839..2e2fbd17377f 100644
> +--- a/src/cmd/ld/ldelf.c
> ++++ b/src/cmd/ld/ldelf.c
> +@@ -888,12 +888,15 @@ reltype(char *pn, int elftype, uchar *siz)
> + 	case R('6', R_X86_64_PC32):
> + 	case R('6', R_X86_64_PLT32):
> + 	case R('6', R_X86_64_GOTPCREL):
> ++	case R('6', R_X86_64_GOTPCRELX):
> ++	case R('6', R_X86_64_REX_GOTPCRELX):
> + 	case R('8', R_386_32):
> + 	case R('8', R_386_PC32):
> + 	case R('8', R_386_GOT32):
> + 	case R('8', R_386_PLT32):
> + 	case R('8', R_386_GOTOFF):
> + 	case R('8', R_386_GOTPC):
> ++	case R('8', R_386_GOT32X):
> + 		*siz = 4;
> + 		break;
> + 	case R('6', R_X86_64_64):
> +-- 
> +2.7.2
> +
> diff --git a/meta/recipes-devtools/go/go-1.4/syslog.patch b/meta/recipes-devtools/go/go-1.4/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> + 
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> + 	// Severity.
> + 
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> + 	writeString(p Priority, hostname, tag, s, nl string) error
> + 	close() error
> ++	setWriteDeadline(t time.Time) error
> + }
> + 
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> + 		nl = "\n"
> + 	}
> + 
> +-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++	if err != nil {
> ++		return 0, err
> ++	}
> ++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> + 	if err != nil {
> + 		return 0, err
> + 	}
> +@@ -305,6 +313,10 @@
> + 	return n.conn.Close()
> + }
> + 
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++	return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> + 	logPaths := []string{"/dev/log", "/var/run/syslog"}
> + 	for _, network := range logTypes {
> + 		for _, path := range logPaths {
> +-			conn, err := net.Dial(network, path)
> ++			conn, err := net.DialTimeout(network, path, connectTimeout)
> + 			if err != nil {
> + 				continue
> + 			} else {
> diff --git a/meta/recipes-devtools/go/go-1.6.inc b/meta/recipes-devtools/go/go-1.6.inc
> new file mode 100644
> index 0000000..769c1d8
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6.inc
> @@ -0,0 +1,19 @@
> +require go-common.inc
> +
> +PV = "1.6.3"
> +GO_BASEVERSION = "1.6"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
> +
> +SRC_URI += "\
> +       file://armhf-elf-header.patch \
> +       file://syslog.patch \
> +       file://fix-target-cc-for-build.patch \
> +       file://fix-cc-handling.patch \
> +       file://split-host-and-target-build.patch \
> +       file://gotooldir.patch \
> +"
> +SRC_URI[md5sum] = "bf3fce6ccaadd310159c9e874220e2a2"
> +SRC_URI[sha256sum] = "6326aeed5f86cf18f16d6dc831405614f855e2d416a91fd3fdc334f772345b00"
> +
> diff --git a/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
> new file mode 100644
> index 0000000..1e3a16b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
> @@ -0,0 +1,23 @@
> +Encode arm EABI ( hard/soft ) calling convention in ELF header
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/link/internal/ld/elf.go
> +===================================================================
> +--- go.orig/src/cmd/link/internal/ld/elf.go
> ++++ go/src/cmd/link/internal/ld/elf.go
> +@@ -827,7 +827,13 @@
> + 	// 32-bit architectures
> + 	case '5':
> + 		// we use EABI on both linux/arm and freebsd/arm.
> +-		if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
> ++		if HEADTYPE == obj.Hlinux {
> ++			if Ctxt.Goarm == 7 {
> ++				ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
> ++			} else {
> ++				ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
> ++			}
> ++		} else if HEADTYPE == obj.Hfreebsd {
> + 			// We set a value here that makes no indication of which
> + 			// float ABI the object uses, because this is information
> + 			// used by the dynamic linker to compare executables and
> diff --git a/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
> new file mode 100644
> index 0000000..983323a
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
> @@ -0,0 +1,50 @@
> +Accept CC with multiple words in its name
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go	2015-07-29 14:48:40.323185807 -0700
> ++++ go/src/cmd/go/build.go	2015-07-30 07:37:40.529818586 -0700
> +@@ -2805,12 +2805,24 @@
> + 	return b.ccompilerCmd("CC", defaultCC, objdir)
> + }
> + 
> ++// gccCmd returns a gcc command line prefix
> ++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gccCmdForReal() []string {
> ++	return envList("CC", defaultCC)
> ++}
> ++
> + // gxxCmd returns a g++ command line prefix
> + // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> + func (b *builder) gxxCmd(objdir string) []string {
> + 	return b.ccompilerCmd("CXX", defaultCXX, objdir)
> + }
> + 
> ++// gxxCmd returns a g++ command line prefix
> ++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gxxCmdForReal() []string {
> ++	return envList("CXX", defaultCXX)
> ++}
> ++
> + // ccompilerCmd returns a command line prefix for the given environment
> + // variable and using the default command when the variable is empty.
> + func (b *builder) ccompilerCmd(envvar, defcmd, objdir string) []string {
> +Index: go/src/cmd/go/env.go
> +===================================================================
> +--- go.orig/src/cmd/go/env.go	2015-07-29 14:48:40.323185807 -0700
> ++++ go/src/cmd/go/env.go	2015-07-30 07:40:54.461655721 -0700
> +@@ -52,10 +52,9 @@
> + 
> + 	if goos != "plan9" {
> + 		cmd := b.gccCmd(".")
> +-		env = append(env, envVar{"CC", cmd[0]})
> ++		env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
> + 		env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
> +-		cmd = b.gxxCmd(".")
> +-		env = append(env, envVar{"CXX", cmd[0]})
> ++		env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
> + 	}
> + 
> + 	if buildContext.CgoEnabled {
> diff --git a/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
> new file mode 100644
> index 0000000..2f6156e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
> @@ -0,0 +1,17 @@
> +Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash	2015-07-29 13:28:11.334031696 -0700
> ++++ go/src/make.bash	2015-07-29 13:36:55.814465630 -0700
> +@@ -158,7 +158,7 @@
> + fi
> + 
> + echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> ++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> + echo
> + 
> + rm -f "$GOTOOLDIR"/go_bootstrap
> diff --git a/meta/recipes-devtools/go/go-1.6/gotooldir.patch b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
> new file mode 100644
> index 0000000..9467025
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
> @@ -0,0 +1,30 @@
> +Define tooldir in relation to GOTOOLDIR env var
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/go/build/build.go
> +===================================================================
> +--- go.orig/src/go/build/build.go
> ++++ go/src/go/build/build.go
> +@@ -1388,7 +1388,7 @@ func init() {
> + }
> + 
> + // ToolDir is the directory containing build tools.
> +-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
> ++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
> + 
> + // IsLocalImport reports whether the import path is
> + // a local import path, like ".", "..", "./foo", or "../foo".
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
> + 		}
> + 
> + 		cgoExe := tool("cgo")
> +-		if a.cgo != nil && a.cgo.target != "" {
> ++		if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
> + 			cgoExe = a.cgo.target
> + 		}
> + 		outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
> diff --git a/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> new file mode 100644
> index 0000000..afbae02
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> @@ -0,0 +1,63 @@
> +Add new option --target-only to build target components
> +Separates the host and target pieces of build
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash
> ++++ go/src/make.bash
> +@@ -143,12 +143,23 @@ if [ "$1" = "--no-clean" ]; then
> + 	buildall=""
> + 	shift
> + fi
> +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
> +-mv cmd/dist/dist "$GOTOOLDIR"/dist
> +-echo
> + 
> +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
> ++do_host_build="yes"
> ++do_target_build="yes"
> ++if [ "$1" = "--target-only" ]; then
> ++	do_host_build="no"
> ++	shift
> ++elif [ "$1" = "--host-only" ]; then
> ++	do_target_build="no"
> ++	shift
> ++fi
> ++
> ++if [ "$do_host_build" = "yes" ]; then
> ++	./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++	# Delay move of dist tool to now, because bootstrap may clear tool directory.
> ++	mv cmd/dist/dist "$GOTOOLDIR"/dist
> ++	echo
> ++
> + 	echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
> + 	# CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
> + 	# use the host compiler, CC, from `cmd/dist/dist env` instead.
> +@@ -157,11 +168,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
> + 	echo
> + fi
> + 
> +-echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> +-echo
> ++if [ "$do_target_build" = "yes" ]; then
> ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
> ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
> ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
> ++	rm -rf ./host-tools
> ++	mkdir ./host-tools
> ++	mv "$GOTOOLDIR"/* ./host-tools
> ++	GOTOOLDIR="$PWD/host-tools"
> ++    fi
> ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
> ++    echo
> + 
> +-rm -f "$GOTOOLDIR"/go_bootstrap
> ++    rm -f "$GOTOOLDIR"/go_bootstrap
> ++fi
> + 
> + if [ "$1" != "--no-banner" ]; then
> + 	"$GOTOOLDIR"/dist banner
> diff --git a/meta/recipes-devtools/go/go-1.6/syslog.patch b/meta/recipes-devtools/go/go-1.6/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> + 
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> + 	// Severity.
> + 
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> + 	writeString(p Priority, hostname, tag, s, nl string) error
> + 	close() error
> ++	setWriteDeadline(t time.Time) error
> + }
> + 
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> + 		nl = "\n"
> + 	}
> + 
> +-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++	if err != nil {
> ++		return 0, err
> ++	}
> ++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> + 	if err != nil {
> + 		return 0, err
> + 	}
> +@@ -305,6 +313,10 @@
> + 	return n.conn.Close()
> + }
> + 
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++	return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> + 	logPaths := []string{"/dev/log", "/var/run/syslog"}
> + 	for _, network := range logTypes {
> + 		for _, path := range logPaths {
> +-			conn, err := net.Dial(network, path)
> ++			conn, err := net.DialTimeout(network, path, connectTimeout)
> + 			if err != nil {
> + 				continue
> + 			} else {
> diff --git a/meta/recipes-devtools/go/go-1.7.inc b/meta/recipes-devtools/go/go-1.7.inc
> new file mode 100644
> index 0000000..5c3004e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7.inc
> @@ -0,0 +1,19 @@
> +require go-common.inc
> +
> +PV = "1.7.4"
> +GO_BASEVERSION = "1.7"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=5d4950ecb7b26d2c5e4e7b4e0dd74707"
> +
> +SRC_URI += "\
> +       file://armhf-elf-header.patch \
> +       file://syslog.patch \
> +       file://fix-target-cc-for-build.patch \
> +       file://fix-cc-handling.patch \
> +       file://split-host-and-target-build.patch \
> +       file://gotooldir.patch \
> +"
> +SRC_URI[md5sum] = "49c1076428a5d3b5ad7ac65233fcca2f"
> +SRC_URI[sha256sum] = "4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc"
> +
> diff --git a/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> new file mode 100644
> index 0000000..1e3a16b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> @@ -0,0 +1,23 @@
> +Encode arm EABI ( hard/soft ) calling convention in ELF header
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/link/internal/ld/elf.go
> +===================================================================
> +--- go.orig/src/cmd/link/internal/ld/elf.go
> ++++ go/src/cmd/link/internal/ld/elf.go
> +@@ -827,7 +827,13 @@
> + 	// 32-bit architectures
> + 	case '5':
> + 		// we use EABI on both linux/arm and freebsd/arm.
> +-		if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
> ++		if HEADTYPE == obj.Hlinux {
> ++			if Ctxt.Goarm == 7 {
> ++				ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
> ++			} else {
> ++				ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
> ++			}
> ++		} else if HEADTYPE == obj.Hfreebsd {
> + 			// We set a value here that makes no indication of which
> + 			// float ABI the object uses, because this is information
> + 			// used by the dynamic linker to compare executables and
> diff --git a/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
> new file mode 100644
> index 0000000..a67caf4
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
> @@ -0,0 +1,50 @@
> +Accept CC with multiple words in its name
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -2991,12 +2991,24 @@ func (b *builder) gccCmd(objdir string)
> + 	return b.ccompilerCmd("CC", defaultCC, objdir)
> + }
> + 
> ++// gccCmd returns a gcc command line prefix
> ++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gccCmdForReal() []string {
> ++	return envList("CC", defaultCC)
> ++}
> ++
> + // gxxCmd returns a g++ command line prefix
> + // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> + func (b *builder) gxxCmd(objdir string) []string {
> + 	return b.ccompilerCmd("CXX", defaultCXX, objdir)
> + }
> + 
> ++// gxxCmd returns a g++ command line prefix
> ++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gxxCmdForReal() []string {
> ++	return envList("CXX", defaultCXX)
> ++}
> ++
> + // gfortranCmd returns a gfortran command line prefix.
> + func (b *builder) gfortranCmd(objdir string) []string {
> + 	return b.ccompilerCmd("FC", "gfortran", objdir)
> +Index: go/src/cmd/go/env.go
> +===================================================================
> +--- go.orig/src/cmd/go/env.go
> ++++ go/src/cmd/go/env.go
> +@@ -51,10 +51,9 @@ func mkEnv() []envVar {
> + 
> + 	if goos != "plan9" {
> + 		cmd := b.gccCmd(".")
> +-		env = append(env, envVar{"CC", cmd[0]})
> ++		env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
> + 		env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
> +-		cmd = b.gxxCmd(".")
> +-		env = append(env, envVar{"CXX", cmd[0]})
> ++		env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
> + 	}
> + 
> + 	if buildContext.CgoEnabled {
> diff --git a/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
> new file mode 100644
> index 0000000..2f6156e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
> @@ -0,0 +1,17 @@
> +Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash	2015-07-29 13:28:11.334031696 -0700
> ++++ go/src/make.bash	2015-07-29 13:36:55.814465630 -0700
> +@@ -158,7 +158,7 @@
> + fi
> + 
> + echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> ++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> + echo
> + 
> + rm -f "$GOTOOLDIR"/go_bootstrap
> diff --git a/meta/recipes-devtools/go/go-1.7/gotooldir.patch b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
> new file mode 100644
> index 0000000..9467025
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
> @@ -0,0 +1,30 @@
> +Define tooldir in relation to GOTOOLDIR env var
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/go/build/build.go
> +===================================================================
> +--- go.orig/src/go/build/build.go
> ++++ go/src/go/build/build.go
> +@@ -1388,7 +1388,7 @@ func init() {
> + }
> + 
> + // ToolDir is the directory containing build tools.
> +-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
> ++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
> + 
> + // IsLocalImport reports whether the import path is
> + // a local import path, like ".", "..", "./foo", or "../foo".
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
> + 		}
> + 
> + 		cgoExe := tool("cgo")
> +-		if a.cgo != nil && a.cgo.target != "" {
> ++		if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
> + 			cgoExe = a.cgo.target
> + 		}
> + 		outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
> diff --git a/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
> new file mode 100644
> index 0000000..b0dd95b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
> @@ -0,0 +1,62 @@
> +Add new option --target-only to build target components
> +Separates the host and target pieces of build
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash
> ++++ go/src/make.bash
> +@@ -154,13 +154,22 @@ if [ "$1" = "--no-clean" ]; then
> + 	buildall=""
> + 	shift
> + fi
> +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++do_host_build="yes"
> ++do_target_build="yes"
> ++if [ "$1" = "--target-only" ]; then
> ++	do_host_build="no"
> ++	shift
> ++elif [ "$1" = "--host-only" ]; then
> ++	do_target_build="no"
> ++	shift
> ++fi
> + 
> +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
> +-mv cmd/dist/dist "$GOTOOLDIR"/dist
> +-echo
> ++if [ "$do_host_build" = "yes" ]; then
> ++	./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++	# Delay move of dist tool to now, because bootstrap may clear tool directory.
> ++	mv cmd/dist/dist "$GOTOOLDIR"/dist
> ++	echo
> + 
> +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
> + 	echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
> + 	# CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
> + 	# use the host compiler, CC, from `cmd/dist/dist env` instead.
> +@@ -169,11 +178,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
> + 	echo
> + fi
> + 
> +-echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> +-echo
> ++if [ "$do_target_build" = "yes" ]; then
> ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
> ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
> ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
> ++	rm -rf ./host-tools
> ++	mkdir ./host-tools
> ++	mv "$GOTOOLDIR"/* ./host-tools
> ++	GOTOOLDIR="$PWD/host-tools"
> ++    fi
> ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
> ++    echo
> + 
> +-rm -f "$GOTOOLDIR"/go_bootstrap
> ++    rm -f "$GOTOOLDIR"/go_bootstrap
> ++fi
> + 
> + if [ "$1" != "--no-banner" ]; then
> + 	"$GOTOOLDIR"/dist banner
> diff --git a/meta/recipes-devtools/go/go-1.7/syslog.patch b/meta/recipes-devtools/go/go-1.7/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> + 
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> + 	// Severity.
> + 
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> + 	writeString(p Priority, hostname, tag, s, nl string) error
> + 	close() error
> ++	setWriteDeadline(t time.Time) error
> + }
> + 
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> + 		nl = "\n"
> + 	}
> + 
> +-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++	if err != nil {
> ++		return 0, err
> ++	}
> ++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> + 	if err != nil {
> + 		return 0, err
> + 	}
> +@@ -305,6 +313,10 @@
> + 	return n.conn.Close()
> + }
> + 
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++	return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> + 	logPaths := []string{"/dev/log", "/var/run/syslog"}
> + 	for _, network := range logTypes {
> + 		for _, path := range logPaths {
> +-			conn, err := net.Dial(network, path)
> ++			conn, err := net.DialTimeout(network, path, connectTimeout)
> + 			if err != nil {
> + 				continue
> + 			} else {
> diff --git a/meta/recipes-devtools/go/go-common.inc b/meta/recipes-devtools/go/go-common.inc
> new file mode 100644
> index 0000000..f74b8b7
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-common.inc
> @@ -0,0 +1,22 @@
> +SUMMARY = "Go programming language compiler"
> +DESCRIPTION = " The Go programming language is an open source project to make \
> + programmers more productive. Go is expressive, concise, clean, and\
> + efficient. Its concurrency mechanisms make it easy to write programs\
> + that get the most out of multicore and networked machines, while its\
> + novel type system enables flexible and modular program construction.\
> + Go compiles quickly to machine code yet has the convenience of\
> + garbage collection and the power of run-time reflection. It's a\
> + fast, statically typed, compiled language that feels like a\
> + dynamically typed, interpreted language."
> +
> +HOMEPAGE = " http://golang.org/"
> +LICENSE = "BSD-3-Clause"
> +
> +inherit goarch
> +
> +SRC_URI = "http://golang.org/dl/go${PV}.src.tar.gz"
> +S = "${WORKDIR}/go"
> +B = "${S}"
> +
> +INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
> +SSTATE_SCAN_CMD = "true"
> diff --git a/meta/recipes-devtools/go/go-cross.inc b/meta/recipes-devtools/go/go-cross.inc
> new file mode 100644
> index 0000000..a6b31c8
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-cross.inc
> @@ -0,0 +1,10 @@
> +inherit cross
> +
> +DEPENDS += "gcc-cross-${TARGET_ARCH}"
> +
> +PN = "go-cross-${TARGET_ARCH}"
> +
> +FILESEXTRAPATHS =. "${FILE_DIRNAME}/go-cross:"
> +
> +GOROOT_FINAL = "${libdir}/go"
> +export GOROOT_FINAL
> diff --git a/meta/recipes-devtools/go/go-cross_1.7.bb b/meta/recipes-devtools/go/go-cross_1.7.bb
> new file mode 100644
> index 0000000..56ee084
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-cross_1.7.bb
> @@ -0,0 +1,5 @@
> +require go-cross.inc
> +require go_${PV}.bb
> +
> +# Go binaries are not understood by the strip tool.
> +INHIBIT_SYSROOT_STRIP = "1"
> diff --git a/meta/recipes-devtools/go/go-native.inc b/meta/recipes-devtools/go/go-native.inc
> new file mode 100644
> index 0000000..89bc634
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-native.inc
> @@ -0,0 +1,54 @@
> +inherit native
> +
> +export GOOS = "${BUILD_GOOS}"
> +export GOARCH = "${BUILD_GOARCH}"
> +export GOROOT_FINAL = "${STAGING_LIBDIR_NATIVE}/go"
> +export CGO_ENABLED = "1"
> +
> +do_configure[noexec] = "1"
> +
> +do_compile() {
> +	export GOBIN="${B}/bin"
> +	rm -rf ${GOBIN}
> +	mkdir ${GOBIN}
> +
> +	export TMPDIR=${WORKDIR}/build-tmp
> +	mkdir -p ${WORKDIR}/build-tmp
> +
> +	cd src
> +	CGO_ENABLED=0 ./make.bash --host-only
> +}
> +
> +make_wrapper() {
> +	rm -f ${D}${bindir}/$2
> +	cat <<END >${D}${bindir}/$2
> +#!/bin/bash
> +here=\`dirname \$0\`
> +export GOROOT="${GOROOT:-\`readlink -f \$here/../lib/go\`}"
> +\$here/../lib/go/bin/$1 "\$@"
> +END
> +	chmod +x ${D}${bindir}/$2
> +}
> +
> +do_install() {
> +	install -d ${D}${libdir}/go
> +	cp -a ${B}/pkg ${D}${libdir}/go/
> +	install -d ${D}${libdir}/go/src
> +	(cd ${S}/src; for d in *; do \
> +		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +	done)
> +
> +	install -d ${D}${bindir} ${D}${libdir}/go/bin
> +	for f in ${B}/bin/*
> +	do
> +		base=`basename $f`
> +		install -m755 $f ${D}${libdir}/go/bin
> +		make_wrapper $base $base
> +	done
> +}
> +
> +do_package[noexec] = "1"
> +do_packagedata[noexec] = "1"
> +do_package_write_ipk[noexec] = "1"
> +do_package_write_deb[noexec] = "1"
> +do_package_write_rpm[noexec] = "1"
> diff --git a/meta/recipes-devtools/go/go-native_1.4.bb b/meta/recipes-devtools/go/go-native_1.4.bb
> new file mode 100644
> index 0000000..bbf3c0d
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-native_1.4.bb
> @@ -0,0 +1,2 @@
> +require ${PN}.inc
> +require go-${PV}.inc
> diff --git a/meta/recipes-devtools/go/go.inc b/meta/recipes-devtools/go/go.inc
> new file mode 100644
> index 0000000..d0d443c
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go.inc
> @@ -0,0 +1,80 @@
> +inherit goarch
> +# libgcc is required for the target specific libraries to build properly
> +DEPENDS += " go-native libgcc"
> +# Prevent runstrip from running because you get errors when the host arch != target arch
> +INHIBIT_PACKAGE_STRIP = "1"
> +INHIBIT_SYSROOT_STRIP = "1"
> +
> +export GOHOSTOS = "${BUILD_GOOS}"
> +export GOHOSTARCH = "${BUILD_GOARCH}"
> +export GOOS = "${TARGET_GOOS}"
> +export GOARCH = "${TARGET_GOARCH}"
> +export GOARM = "${TARGET_GOARM}"
> +export GOROOT_BOOTSTRAP = "${STAGING_LIBDIR_NATIVE}/go"
> +export GOROOT_FINAL = "${libdir}/go"
> +export CGO_ENABLED = "1"
> +export CC_FOR_TARGET = "${CC}"
> +export CXX_FOR_TARGET = "${CXX}"
> +
> +do_configure[noexec] = "1"
> +
> +do_compile_prepend_class-cross() {
> +	export CGO_ENABLED=0
> +}
> +
> +do_compile() {
> +	export GOBIN="${B}/bin"
> +	export CC="${@d.getVar('BUILD_CC', True).strip()}"
> +	rm -rf ${GOBIN} ${B}/pkg
> +	mkdir ${GOBIN}
> +
> +	export TMPDIR=${WORKDIR}/build-tmp
> +	mkdir -p ${WORKDIR}/build-tmp
> +
> +	cd src
> +	./make.bash --host-only
> +	# Ensure cgo.a is built with the target toolchain
> +	export GOBIN="${B}/target/bin"
> +	rm -rf ${GOBIN}
> +	mkdir -p ${GOBIN}
> +	GO_FLAGS="-a" ./make.bash
> +}
> +
> +do_install_class-target() {
> +	install -d ${D}${libdir}/go
> +	cp -a ${B}/pkg ${D}${libdir}/go/
> +	install -d ${D}${libdir}/go/src
> +	(cd ${S}/src; for d in *; do \
> +		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +	done)
> +	install -d ${D}${bindir}
> +	if [ -d ${B}/bin/${GOOS}_${GOARCH} ]
> +	then
> +		install -m 0755 ${B}/bin/${GOOS}_${GOARCH}/* ${D}${bindir}
> +	else
> +		install -m 0755 ${B}/bin/* ${D}${bindir}
> +	fi
> +}
> +
> +do_install_class-cross() {
> +	install -d ${D}${libdir}/go
> +	cp -a ${B}/pkg ${D}${libdir}/go/
> +	install -d ${D}${libdir}/go/src
> +	(cd ${S}/src; for d in *; do \
> +		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +	done)
> +	install -d ${D}${bindir}
> +	for f in ${B}/bin/go*
> +	do
> +		install -m755 $f ${D}${bindir}
> +	done
> +}
> +
> +INSANE_SKIP_${PN} += "staticdev"
> +RDEPENDS_${PN} += "perl"
> +
> +do_package[noexec] = "1"
> +do_packagedata[noexec] = "1"
> +do_package_write_ipk[noexec] = "1"
> +do_package_write_deb[noexec] = "1"
> +do_package_write_rpm[noexec] = "1"
> diff --git a/meta/recipes-devtools/go/go_1.6.bb b/meta/recipes-devtools/go/go_1.6.bb
> new file mode 100644
> index 0000000..2f59033
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go_1.6.bb
> @@ -0,0 +1,4 @@
> +require go.inc
> +require go-${PV}.inc
> +
> +BBCLASSEXTEND = "cross"
> diff --git a/meta/recipes-devtools/go/go_1.7.bb b/meta/recipes-devtools/go/go_1.7.bb
> new file mode 100644
> index 0000000..e7a6ab2
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go_1.7.bb
> @@ -0,0 +1,2 @@
> +require go-${PV}.inc
> +require go.inc
> diff --git a/meta/recipes-extended/go-examples/files/helloworld.go b/meta/recipes-extended/go-examples/files/helloworld.go
> new file mode 100644
> index 0000000..0253c40
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/files/helloworld.go
> @@ -0,0 +1,10 @@
> +// You can edit this code!
> +// Click here and start typing.
> +// taken from https://golang.org/
> +package main
> +
> +import "fmt"
> +
> +func main() {
> +	fmt.Println("Hello, 世界")
> +}
> diff --git a/meta/recipes-extended/go-examples/go-examples.inc b/meta/recipes-extended/go-examples/go-examples.inc
> new file mode 100644
> index 0000000..c632681
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/go-examples.inc
> @@ -0,0 +1,10 @@
> +DESCRIPTION = "This is a simple example recipe that cross-compiles a Go program."
> +SECTION = "examples"
> +HOMEPAGE = "https://golang.org/"
> +
> +LICENSE = "MIT"
> +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
> +
> +S = "${WORKDIR}"
> +
> +inherit go
> diff --git a/meta/recipes-extended/go-examples/go-helloworld_0.1.bb b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> new file mode 100644
> index 0000000..930c57d
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> @@ -0,0 +1,13 @@
> +require go-examples.inc
> +
> +SRC_URI += " \
> +  file://helloworld.go \
> +"
> +
> +do_compile() {
> +	go build helloworld.go
> +}
> +
> +do_install() {
> +	install -D -m 0755 ${S}/helloworld ${D}${bindir}/helloworld
> +}
> -- 
> 2.10.2
>
Khem Raj March 6, 2017, 6:47 p.m. | #2
On Mon, Mar 6, 2017 at 7:05 AM, Leonardo Sandoval
<leonardo.sandoval.gonzalez@linux.intel.com> wrote:
> For the moment, manually cutting & pasting patchtest results:

>

>

> * Issue             Added patch file is missing Upstream-Status in the

> header [test_upstream_status_presence]

>   Suggested fix    Add Upstream-Status: <status> to the header of

> meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch (possible values: Pending, Submitted, Accepted, Backport, Denied, Inappropriate)

>

> * Issue             A patch file has been added, but does not have a

> Signed-off-by tag [test_signed_off_by_presence]

>   Suggested fix    Sign off the added patch file

> (meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch)

>


Sent a v7 which fixes this
-- 
_______________________________________________
Openembedded-core mailing list
Openembedded-core@lists.openembedded.org
http://lists.openembedded.org/mailman/listinfo/openembedded-core
Matt Madison March 6, 2017, 8 p.m. | #3
On Fri, Mar 3, 2017 at 3:18 PM, Khem Raj <raj.khem@gmail.com> wrote:
> * This is converging the recipes for go from
>   meta-virtualization and oe-meta-go
>
> * Add recipes for go 1.7
>
> * go.bbclass is added to ease out writing
>   recipes for go packages
>
> * go-examples: Add an example, helloworld written in go
>   This should serve as temlate for writing go recipes


I have some specific comments below, but as a general question,
how about crosssdk and cross-canadian recipes for the toolchain?


Thanks,
-Matt

>
> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> ---
>  meta/classes/go.bbclass                            |  72 +++++++
>  meta/classes/goarch.bbclass                        |  46 +++++
>  meta/recipes-devtools/go/go-1.4.inc                |  16 ++
>  ...alignment-for-the-.rel.plt-section-on-32-.patch |  30 +++
>  .../go/go-1.4/016-armhf-elf-header.patch           |  24 +++
>  ...ckport-cmd-link-support-new-386-amd64-rel.patch | 225 +++++++++++++++++++++
>  meta/recipes-devtools/go/go-1.4/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-1.6.inc                |  19 ++
>  .../go/go-1.6/armhf-elf-header.patch               |  23 +++
>  .../go/go-1.6/fix-cc-handling.patch                |  50 +++++
>  .../go/go-1.6/fix-target-cc-for-build.patch        |  17 ++
>  meta/recipes-devtools/go/go-1.6/gotooldir.patch    |  30 +++
>  .../go/go-1.6/split-host-and-target-build.patch    |  63 ++++++
>  meta/recipes-devtools/go/go-1.6/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-1.7.inc                |  19 ++
>  .../go/go-1.7/armhf-elf-header.patch               |  23 +++
>  .../go/go-1.7/fix-cc-handling.patch                |  50 +++++
>  .../go/go-1.7/fix-target-cc-for-build.patch        |  17 ++
>  meta/recipes-devtools/go/go-1.7/gotooldir.patch    |  30 +++
>  .../go/go-1.7/split-host-and-target-build.patch    |  62 ++++++
>  meta/recipes-devtools/go/go-1.7/syslog.patch       |  62 ++++++
>  meta/recipes-devtools/go/go-common.inc             |  22 ++
>  meta/recipes-devtools/go/go-cross.inc              |  10 +
>  meta/recipes-devtools/go/go-cross_1.7.bb           |   5 +
>  meta/recipes-devtools/go/go-native.inc             |  54 +++++
>  meta/recipes-devtools/go/go-native_1.4.bb          |   2 +
>  meta/recipes-devtools/go/go.inc                    |  80 ++++++++
>  meta/recipes-devtools/go/go_1.6.bb                 |   4 +
>  meta/recipes-devtools/go/go_1.7.bb                 |   2 +
>  .../go-examples/files/helloworld.go                |  10 +
>  meta/recipes-extended/go-examples/go-examples.inc  |  10 +
>  .../go-examples/go-helloworld_0.1.bb               |  13 ++
>  32 files changed, 1214 insertions(+)
>  create mode 100644 meta/classes/go.bbclass
>  create mode 100644 meta/classes/goarch.bbclass
>  create mode 100644 meta/recipes-devtools/go/go-1.4.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.4/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/gotooldir.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.6/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7.inc
>  create mode 100644 meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/gotooldir.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
>  create mode 100644 meta/recipes-devtools/go/go-1.7/syslog.patch
>  create mode 100644 meta/recipes-devtools/go/go-common.inc
>  create mode 100644 meta/recipes-devtools/go/go-cross.inc
>  create mode 100644 meta/recipes-devtools/go/go-cross_1.7.bb
>  create mode 100644 meta/recipes-devtools/go/go-native.inc
>  create mode 100644 meta/recipes-devtools/go/go-native_1.4.bb
>  create mode 100644 meta/recipes-devtools/go/go.inc
>  create mode 100644 meta/recipes-devtools/go/go_1.6.bb
>  create mode 100644 meta/recipes-devtools/go/go_1.7.bb
>  create mode 100644 meta/recipes-extended/go-examples/files/helloworld.go
>  create mode 100644 meta/recipes-extended/go-examples/go-examples.inc
>  create mode 100644 meta/recipes-extended/go-examples/go-helloworld_0.1.bb
>
> diff --git a/meta/classes/go.bbclass b/meta/classes/go.bbclass
> new file mode 100644
> index 0000000..e6ea996
> --- /dev/null
> +++ b/meta/classes/go.bbclass
> @@ -0,0 +1,72 @@
> +inherit goarch
> +
> +GOROOT_class-native = "${STAGING_LIBDIR_NATIVE}/go"
> +GOROOT = "${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go"
> +GOBIN_FINAL_class-native = "${GOROOT_FINAL}/bin"
> +GOBIN_FINAL = "${GOROOT_FINAL}/bin/${GOOS}_${GOARCH}"
> +
> +export GOOS = "${TARGET_GOOS}"
> +export GOARCH = "${TARGET_GOARCH}"
> +export GOARM = "${TARGET_GOARM}"
> +export CGO_ENABLED = "1"
> +export GOROOT
> +export GOROOT_FINAL = "${libdir}/${TARGET_SYS}/go"
> +export GOBIN_FINAL
> +export GOPKG_FINAL = "${GOROOT_FINAL}/pkg/${GOOS}_${GOARCH}"
> +export GOSRC_FINAL = "${GOROOT_FINAL}/src"
> +export GO_GCFLAGS = "${TARGET_CFLAGS}"
> +export GO_LDFLAGS = "${TARGET_LDFLAGS}"
> +export CGO_CFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CFLAGS}"
> +export CGO_CPPFLAGS = "${TARGET_CPPFLAGS}"
> +export CGO_CXXFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CXXFLAGS}"
> +export CGO_LDFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_LDFLAGS}"
> +
> +DEPENDS += "go-cross-${TARGET_ARCH}"
> +DEPENDS_class-native += "go-native"
> +
> +FILES_${PN}-staticdev += "${GOSRC_FINAL}/${GO_IMPORT}"
> +FILES_${PN}-staticdev += "${GOPKG_FINAL}/${GO_IMPORT}*"
> +
> +GO_INSTALL ?= "${GO_IMPORT}/..."
> +
> +do_go_compile() {
> +       GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
> +       if test -n "${GO_INSTALL}" ; then
> +               GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}

Have you tested to make sure that the go install won't update and
install packages into the staging libdir during this compilation step?
 There is that risk, as the go tool will update dependent packages
even in GOROOT if it's writeable.  In meta-golang I added some patches
to the go build tool to prevent this.

> +       fi
> +}
> +
> +do_go_install() {
> +       rm -rf ${WORKDIR}/staging
> +       install -d ${WORKDIR}/staging${GOROOT_FINAL} ${D}${GOROOT_FINAL}
> +       tar -C ${S} -cf - . | tar -C ${WORKDIR}/staging${GOROOT_FINAL} -xpvf -
> +
> +       find ${WORKDIR}/staging${GOROOT_FINAL} \( \
> +               -name \*.indirectionsymlink -o \
> +               -name .git\* -o                \
> +               -name .hg -o                   \
> +               -name .svn -o                  \
> +               -name .pc\* -o                 \
> +               -name patches\*                \
> +               \) -print0 | \
> +       xargs -r0 rm -rf

Perhaps you could use --exclude-vcs and --exclude=pattern on the tar
command to prevent the files from being populated in the first place?

> +
> +       tar -C ${WORKDIR}/staging${GOROOT_FINAL} -cf - . | \
> +       tar -C ${D}${GOROOT_FINAL} -xpvf -
> +
> +       chown -R root:root "${D}${GOROOT_FINAL}"

Use --no-same-owner on the tar command to eliminate the chown.
> +
> +       if test -e "${D}${GOBIN_FINAL}" ; then
> +               install -d -m 0755 "${D}${bindir}"
> +               find "${D}${GOBIN_FINAL}" ! -type d -print0 | xargs -r0 mv --target-directory="${D}${bindir}"
> +               rmdir -p "${D}${GOBIN_FINAL}" || true
> +       fi
> +}
> +
> +do_compile() {
> +       do_go_compile
> +}
> +
> +do_install() {
> +       do_go_install
> +}

This is a bbclass, so these two functions should not be here, and the
ones above should be named 'go_do_XXX' instead of 'do_go_XXX'.  Then
add an EXPORT_FUNCTIONS line to export them.


> diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
> new file mode 100644
> index 0000000..119703c
> --- /dev/null
> +++ b/meta/classes/goarch.bbclass
> @@ -0,0 +1,46 @@
> +BUILD_GOOS = "${@go_map_os(d.getVar('BUILD_OS', True), d)}"
> +BUILD_GOARCH = "${@go_map_arch(d.getVar('BUILD_ARCH', True), d)}"
> +BUILD_GOTUPLE = "${BUILD_GOOS}_${BUILD_GOARCH}"
> +HOST_GOOS = "${@go_map_os(d.getVar('HOST_OS', True), d)}"
> +HOST_GOARCH = "${@go_map_arch(d.getVar('HOST_ARCH', True), d)}"
> +HOST_GOARM = "${@go_map_arm(d.getVar('HOST_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> +HOST_GOTUPLE = "${HOST_GOOS}_${HOST_GOARCH}"
> +TARGET_GOOS = "${@go_map_os(d.getVar('TARGET_OS', True), d)}"
> +TARGET_GOARCH = "${@go_map_arch(d.getVar('TARGET_ARCH', True), d)}"
> +TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> +TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
> +GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE',True) == d.getVar('HOST_GOTUPLE',True)]}"
> +
> +def go_map_arch(a, d):
> +    import re
> +    if re.match('i.86', a):
> +        return '386'
> +    elif a == 'x86_64':
> +        return 'amd64'
> +    elif re.match('arm.*', a):
> +        return 'arm'
> +    elif re.match('aarch64.*', a):
> +        return 'arm64'
> +    elif re.match('mips64el*', a):
> +        return 'mips64le'
> +    elif re.match('mips64*', a):
> +        return 'mips64'
> +    elif re.match('p(pc|owerpc)(64)', a):
> +        return 'ppc64'
> +    elif re.match('p(pc|owerpc)(64el)', a):
> +        return 'ppc64le'
> +    else:
> +        raise bb.parse.SkipPackage("Unsupported CPU architecture: %s" % a)
> +
> +def go_map_arm(a, f, d):
> +    import re
> +    if re.match('arm.*', a) and re.match('arm.*7.*', f):
> +        return '7'
> +    return ''
> +
> +def go_map_os(o, d):
> +    if o.startswith('linux'):
> +        return 'linux'
> +    return o
> +
> +


For the following go-1.4 recipes:

I wouldn't recommend fixing go-native at version 1.4, which is now
postiviely ancient.
Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it
in the right place so
that make.bash finds it.  This way, you can have all the go toolchain
recipes build at the
same version.  The go team only supports go1.4 for bootstrapping the
compiler build now
anyway, IIRC.

> diff --git a/meta/recipes-devtools/go/go-1.4.inc b/meta/recipes-devtools/go/go-1.4.inc
> new file mode 100644
> index 0000000..2f500f3
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4.inc
> @@ -0,0 +1,16 @@
> +require go-common.inc
> +
> +PV = "1.4.3"
> +GO_BASEVERSION = "1.4"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +SRC_URI += "\
> +        file://016-armhf-elf-header.patch \
> +        file://go-cross-backport-cmd-link-support-new-386-amd64-rel.patch \
> +        file://syslog.patch \
> +        file://0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch \
> +"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
> +SRC_URI[md5sum] = "dfb604511115dd402a77a553a5923a04"
> +SRC_URI[sha256sum] = "9947fc705b0b841b5938c48b22dc33e9647ec0752bae66e50278df4f23f64959"
> diff --git a/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
> new file mode 100644
> index 0000000..4cfa9d1
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
> @@ -0,0 +1,30 @@
> +From 855145d5c03c4b4faf60736c38d7a299c682af4a Mon Sep 17 00:00:00 2001
> +From: Shenghou Ma <minux@golang.org>
> +Date: Sat, 7 Feb 2015 14:06:02 -0500
> +Subject: [PATCH] cmd/ld: set alignment for the .rel.plt section on 32-bit
> + architectures
> +
> +Fixes #9802.
> +
> +Change-Id: I22c52a37bdb23a14cc4615c9519431bb14ca81ca
> +Reviewed-on: https://go-review.googlesource.com/4170
> +Reviewed-by: Ian Lance Taylor <iant@golang.org>
> +---
> + src/cmd/ld/elf.c | 1 +
> + 1 file changed, 1 insertion(+)
> +
> +diff --git a/src/cmd/ld/elf.c b/src/cmd/ld/elf.c
> +index 12ced98..97ed4bd 100644
> +--- a/src/cmd/ld/elf.c
> ++++ b/src/cmd/ld/elf.c
> +@@ -1363,6 +1363,7 @@ asmbelf(vlong symo)
> +                       sh->type = SHT_REL;
> +                       sh->flags = SHF_ALLOC;
> +                       sh->entsize = ELF32RELSIZE;
> ++                      sh->addralign = 4;
> +                       sh->link = elfshname(".dynsym")->shnum;
> +                       shsym(sh, linklookup(ctxt, ".rel.plt", 0));
> +
> +--
> +1.9.1
> +
> diff --git a/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
> new file mode 100644
> index 0000000..e6e414e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
> @@ -0,0 +1,24 @@
> +Description: Use correct ELF header for armhf binaries.
> +Author: Adam Conrad <adconrad@ubuntu.com>
> +Last-Update: 2013-07-08
> +
> +Upstream-Status: Pending
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +
> +Index: go/src/cmd/ld/elf.c
> +===================================================================
> +--- go.orig/src/cmd/ld/elf.c   2015-02-20 10:49:58.763451586 -0800
> ++++ go/src/cmd/ld/elf.c        2015-02-20 10:49:27.895478521 -0800
> +@@ -57,7 +57,11 @@
> +       case '5':
> +               // we use EABI on both linux/arm and freebsd/arm.
> +               if(HEADTYPE == Hlinux || HEADTYPE == Hfreebsd)
> +-                      hdr.flags = 0x5000002; // has entry point, Version5 EABI
> ++#ifdef __ARM_PCS_VFP
> ++                      hdr.flags = 0x5000402; // has entry point, Version5 EABI, hard-float ABI
> ++#else
> ++                      hdr.flags = 0x5000202; // has entry point, Version5 EABI, soft-float ABI
> ++#endif
> +               // fallthrough
> +       default:
> +               hdr.phoff = ELF32HDRSIZE;       /* Must be be ELF32HDRSIZE: first PHdr must follow ELF header */
> diff --git a/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
> new file mode 100644
> index 0000000..95ca9d3
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
> @@ -0,0 +1,225 @@
> +From d6eefad445831c161fca130f9bdf7b3848aac23c Mon Sep 17 00:00:00 2001
> +From: Paul Gortmaker <paul.gortmaker@windriver.com>
> +Date: Tue, 29 Mar 2016 21:14:33 -0400
> +Subject: [PATCH] go-cross: backport "cmd/link: support new 386/amd64
> + relocations"
> +
> +Newer binutils won't support building older go-1.4.3 as per:
> +
> +https://github.com/golang/go/issues/13114
> +
> +Upstream commit 914db9f060b1fd3eb1f74d48f3bd46a73d4ae9c7 (see subj)
> +was identified as the fix and nominated for 1.4.4 but that release
> +never happened.  The paths in 1.4.3 aren't the same as go1.6beta1~662
> +where this commit appeared, but the NetBSD folks indicated what a
> +1.4.3 backport would look like here: https://gnats.netbsd.org/50777
> +
> +This is based on that, but without the BSD wrapper infrastructure
> +layer that makes things look like patches of patches.
> +
> +Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> +
> +Upstream-Status: Backport [ Partial ]
> +
> +diff --git a/src/cmd/6l/asm.c b/src/cmd/6l/asm.c
> +index 18b5aa311981..2e9d339aef87 100644
> +--- a/src/cmd/6l/asm.c
> ++++ b/src/cmd/6l/asm.c
> +@@ -118,6 +118,8 @@ adddynrel(LSym *s, Reloc *r)
> +               return;
> +
> +       case 256 + R_X86_64_GOTPCREL:
> ++      case 256 + R_X86_64_GOTPCRELX:
> ++      case 256 + R_X86_64_REX_GOTPCRELX:
> +               if(targ->type != SDYNIMPORT) {
> +                       // have symbol
> +                       if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
> +diff --git a/src/cmd/8l/asm.c b/src/cmd/8l/asm.c
> +index 98c04240374f..cff29488e8af 100644
> +--- a/src/cmd/8l/asm.c
> ++++ b/src/cmd/8l/asm.c
> +@@ -115,6 +115,7 @@ adddynrel(LSym *s, Reloc *r)
> +               return;
> +
> +       case 256 + R_386_GOT32:
> ++      case 256 + R_386_GOT32X:
> +               if(targ->type != SDYNIMPORT) {
> +                       // have symbol
> +                       if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
> +diff --git a/src/cmd/ld/elf.h b/src/cmd/ld/elf.h
> +index e84d996f2596..bbf2cfaa3cc0 100644
> +--- a/src/cmd/ld/elf.h
> ++++ b/src/cmd/ld/elf.h
> +@@ -478,32 +478,47 @@ typedef struct {
> +  * Relocation types.
> +  */
> +
> +-#define       R_X86_64_NONE   0       /* No relocation. */
> +-#define       R_X86_64_64     1       /* Add 64 bit symbol value. */
> +-#define       R_X86_64_PC32   2       /* PC-relative 32 bit signed sym value. */
> +-#define       R_X86_64_GOT32  3       /* PC-relative 32 bit GOT offset. */
> +-#define       R_X86_64_PLT32  4       /* PC-relative 32 bit PLT offset. */
> +-#define       R_X86_64_COPY   5       /* Copy data from shared object. */
> +-#define       R_X86_64_GLOB_DAT 6     /* Set GOT entry to data address. */
> +-#define       R_X86_64_JMP_SLOT 7     /* Set GOT entry to code address. */
> +-#define       R_X86_64_RELATIVE 8     /* Add load address of shared object. */
> +-#define       R_X86_64_GOTPCREL 9     /* Add 32 bit signed pcrel offset to GOT. */
> +-#define       R_X86_64_32     10      /* Add 32 bit zero extended symbol value */
> +-#define       R_X86_64_32S    11      /* Add 32 bit sign extended symbol value */
> +-#define       R_X86_64_16     12      /* Add 16 bit zero extended symbol value */
> +-#define       R_X86_64_PC16   13      /* Add 16 bit signed extended pc relative symbol value */
> +-#define       R_X86_64_8      14      /* Add 8 bit zero extended symbol value */
> +-#define       R_X86_64_PC8    15      /* Add 8 bit signed extended pc relative symbol value */
> +-#define       R_X86_64_DTPMOD64 16    /* ID of module containing symbol */
> +-#define       R_X86_64_DTPOFF64 17    /* Offset in TLS block */
> +-#define       R_X86_64_TPOFF64 18     /* Offset in static TLS block */
> +-#define       R_X86_64_TLSGD  19      /* PC relative offset to GD GOT entry */
> +-#define       R_X86_64_TLSLD  20      /* PC relative offset to LD GOT entry */
> +-#define       R_X86_64_DTPOFF32 21    /* Offset in TLS block */
> +-#define       R_X86_64_GOTTPOFF 22    /* PC relative offset to IE GOT entry */
> +-#define       R_X86_64_TPOFF32 23     /* Offset in static TLS block */
> +-
> +-#define       R_X86_64_COUNT  24      /* Count of defined relocation types. */
> ++#define       R_X86_64_NONE           0
> ++#define       R_X86_64_64             1
> ++#define       R_X86_64_PC32           2
> ++#define       R_X86_64_GOT32          3
> ++#define       R_X86_64_PLT32          4
> ++#define       R_X86_64_COPY           5
> ++#define       R_X86_64_GLOB_DAT       6
> ++#define       R_X86_64_JMP_SLOT       7
> ++#define       R_X86_64_RELATIVE       8
> ++#define       R_X86_64_GOTPCREL       9
> ++#define       R_X86_64_32             10
> ++#define       R_X86_64_32S            11
> ++#define       R_X86_64_16             12
> ++#define       R_X86_64_PC16           13
> ++#define       R_X86_64_8              14
> ++#define       R_X86_64_PC8            15
> ++#define       R_X86_64_DTPMOD64       16
> ++#define       R_X86_64_DTPOFF64       17
> ++#define       R_X86_64_TPOFF64        18
> ++#define       R_X86_64_TLSGD          19
> ++#define       R_X86_64_TLSLD          20
> ++#define       R_X86_64_DTPOFF32       21
> ++#define       R_X86_64_GOTTPOFF       22
> ++#define       R_X86_64_TPOFF32        23
> ++#define       R_X86_64_PC64           24
> ++#define       R_X86_64_GOTOFF64       25
> ++#define       R_X86_64_GOTPC32        26
> ++#define       R_X86_64_GOT64          27
> ++#define       R_X86_64_GOTPCREL64     28
> ++#define       R_X86_64_GOTPC64        29
> ++#define       R_X86_64_GOTPLT64       30
> ++#define       R_X86_64_PLTOFF64       31
> ++#define       R_X86_64_SIZE32         32
> ++#define       R_X86_64_SIZE64         33
> ++#define       R_X86_64_GOTPC32_TLSDEC 34
> ++#define       R_X86_64_TLSDESC_CALL   35
> ++#define       R_X86_64_TLSDESC        36
> ++#define       R_X86_64_IRELATIVE      37
> ++#define       R_X86_64_PC32_BND       40
> ++#define       R_X86_64_GOTPCRELX      41
> ++#define       R_X86_64_REX_GOTPCRELX  42
> +
> +
> + #define       R_ALPHA_NONE            0       /* No reloc */
> +@@ -581,39 +596,42 @@ typedef struct {
> + #define       R_ARM_COUNT             38      /* Count of defined relocation types. */
> +
> +
> +-#define       R_386_NONE      0       /* No relocation. */
> +-#define       R_386_32        1       /* Add symbol value. */
> +-#define       R_386_PC32      2       /* Add PC-relative symbol value. */
> +-#define       R_386_GOT32     3       /* Add PC-relative GOT offset. */
> +-#define       R_386_PLT32     4       /* Add PC-relative PLT offset. */
> +-#define       R_386_COPY      5       /* Copy data from shared object. */
> +-#define       R_386_GLOB_DAT  6       /* Set GOT entry to data address. */
> +-#define       R_386_JMP_SLOT  7       /* Set GOT entry to code address. */
> +-#define       R_386_RELATIVE  8       /* Add load address of shared object. */
> +-#define       R_386_GOTOFF    9       /* Add GOT-relative symbol address. */
> +-#define       R_386_GOTPC     10      /* Add PC-relative GOT table address. */
> +-#define       R_386_TLS_TPOFF 14      /* Negative offset in static TLS block */
> +-#define       R_386_TLS_IE    15      /* Absolute address of GOT for -ve static TLS */
> +-#define       R_386_TLS_GOTIE 16      /* GOT entry for negative static TLS block */
> +-#define       R_386_TLS_LE    17      /* Negative offset relative to static TLS */
> +-#define       R_386_TLS_GD    18      /* 32 bit offset to GOT (index,off) pair */
> +-#define       R_386_TLS_LDM   19      /* 32 bit offset to GOT (index,zero) pair */
> +-#define       R_386_TLS_GD_32 24      /* 32 bit offset to GOT (index,off) pair */
> +-#define       R_386_TLS_GD_PUSH 25    /* pushl instruction for Sun ABI GD sequence */
> +-#define       R_386_TLS_GD_CALL 26    /* call instruction for Sun ABI GD sequence */
> +-#define       R_386_TLS_GD_POP 27     /* popl instruction for Sun ABI GD sequence */
> +-#define       R_386_TLS_LDM_32 28     /* 32 bit offset to GOT (index,zero) pair */
> +-#define       R_386_TLS_LDM_PUSH 29   /* pushl instruction for Sun ABI LD sequence */
> +-#define       R_386_TLS_LDM_CALL 30   /* call instruction for Sun ABI LD sequence */
> +-#define       R_386_TLS_LDM_POP 31    /* popl instruction for Sun ABI LD sequence */
> +-#define       R_386_TLS_LDO_32 32     /* 32 bit offset from start of TLS block */
> +-#define       R_386_TLS_IE_32 33      /* 32 bit offset to GOT static TLS offset entry */
> +-#define       R_386_TLS_LE_32 34      /* 32 bit offset within static TLS block */
> +-#define       R_386_TLS_DTPMOD32 35   /* GOT entry containing TLS index */
> +-#define       R_386_TLS_DTPOFF32 36   /* GOT entry containing TLS offset */
> +-#define       R_386_TLS_TPOFF32 37    /* GOT entry of -ve static TLS offset */
> +-
> +-#define       R_386_COUNT     38      /* Count of defined relocation types. */
> ++#define       R_386_NONE          0
> ++#define       R_386_32            1
> ++#define       R_386_PC32          2
> ++#define       R_386_GOT32         3
> ++#define       R_386_PLT32         4
> ++#define       R_386_COPY          5
> ++#define       R_386_GLOB_DAT      6
> ++#define       R_386_JMP_SLOT      7
> ++#define       R_386_RELATIVE      8
> ++#define       R_386_GOTOFF        9
> ++#define       R_386_GOTPC         10
> ++#define       R_386_TLS_TPOFF     14
> ++#define       R_386_TLS_IE        15
> ++#define       R_386_TLS_GOTIE     16
> ++#define       R_386_TLS_LE        17
> ++#define       R_386_TLS_GD        18
> ++#define       R_386_TLS_LDM       19
> ++#define       R_386_TLS_GD_32     24
> ++#define       R_386_TLS_GD_PUSH   25
> ++#define       R_386_TLS_GD_CALL   26
> ++#define       R_386_TLS_GD_POP    27
> ++#define       R_386_TLS_LDM_32    28
> ++#define       R_386_TLS_LDM_PUSH  29
> ++#define       R_386_TLS_LDM_CALL  30
> ++#define       R_386_TLS_LDM_POP   31
> ++#define       R_386_TLS_LDO_32    32
> ++#define       R_386_TLS_IE_32     33
> ++#define       R_386_TLS_LE_32     34
> ++#define       R_386_TLS_DTPMOD32  35
> ++#define       R_386_TLS_DTPOFF32  36
> ++#define       R_386_TLS_TPOFF32   37
> ++#define       R_386_TLS_GOTDESC   39
> ++#define       R_386_TLS_DESC_CALL 40
> ++#define       R_386_TLS_DESC      41
> ++#define       R_386_IRELATIVE     42
> ++#define       R_386_GOT32X        43
> +
> + #define       R_PPC_NONE              0       /* No relocation. */
> + #define       R_PPC_ADDR32            1
> +diff --git a/src/cmd/ld/ldelf.c b/src/cmd/ld/ldelf.c
> +index dd5fa0d2a839..2e2fbd17377f 100644
> +--- a/src/cmd/ld/ldelf.c
> ++++ b/src/cmd/ld/ldelf.c
> +@@ -888,12 +888,15 @@ reltype(char *pn, int elftype, uchar *siz)
> +       case R('6', R_X86_64_PC32):
> +       case R('6', R_X86_64_PLT32):
> +       case R('6', R_X86_64_GOTPCREL):
> ++      case R('6', R_X86_64_GOTPCRELX):
> ++      case R('6', R_X86_64_REX_GOTPCRELX):
> +       case R('8', R_386_32):
> +       case R('8', R_386_PC32):
> +       case R('8', R_386_GOT32):
> +       case R('8', R_386_PLT32):
> +       case R('8', R_386_GOTOFF):
> +       case R('8', R_386_GOTPC):
> ++      case R('8', R_386_GOT32X):
> +               *siz = 4;
> +               break;
> +       case R('6', R_X86_64_64):
> +--
> +2.7.2
> +
> diff --git a/meta/recipes-devtools/go/go-1.4/syslog.patch b/meta/recipes-devtools/go/go-1.4/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.4/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go        2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go    2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> +
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> +       // Severity.
> +
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> +       writeString(p Priority, hostname, tag, s, nl string) error
> +       close() error
> ++      setWriteDeadline(t time.Time) error
> + }
> +
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> +               nl = "\n"
> +       }
> +
> +-      err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++      err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++      if err != nil {
> ++              return 0, err
> ++      }
> ++      err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> +       if err != nil {
> +               return 0, err
> +       }
> +@@ -305,6 +313,10 @@
> +       return n.conn.Close()
> + }
> +
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++      return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go   2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go       2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> +       logPaths := []string{"/dev/log", "/var/run/syslog"}
> +       for _, network := range logTypes {
> +               for _, path := range logPaths {
> +-                      conn, err := net.Dial(network, path)
> ++                      conn, err := net.DialTimeout(network, path, connectTimeout)
> +                       if err != nil {
> +                               continue
> +                       } else {
> diff --git a/meta/recipes-devtools/go/go-1.6.inc b/meta/recipes-devtools/go/go-1.6.inc
> new file mode 100644
> index 0000000..769c1d8
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6.inc
> @@ -0,0 +1,19 @@
> +require go-common.inc
> +
> +PV = "1.6.3"
> +GO_BASEVERSION = "1.6"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
> +
> +SRC_URI += "\
> +       file://armhf-elf-header.patch \
> +       file://syslog.patch \
> +       file://fix-target-cc-for-build.patch \
> +       file://fix-cc-handling.patch \
> +       file://split-host-and-target-build.patch \
> +       file://gotooldir.patch \
> +"
> +SRC_URI[md5sum] = "bf3fce6ccaadd310159c9e874220e2a2"
> +SRC_URI[sha256sum] = "6326aeed5f86cf18f16d6dc831405614f855e2d416a91fd3fdc334f772345b00"
> +
> diff --git a/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
> new file mode 100644
> index 0000000..1e3a16b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
> @@ -0,0 +1,23 @@
> +Encode arm EABI ( hard/soft ) calling convention in ELF header
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/link/internal/ld/elf.go
> +===================================================================
> +--- go.orig/src/cmd/link/internal/ld/elf.go
> ++++ go/src/cmd/link/internal/ld/elf.go
> +@@ -827,7 +827,13 @@
> +       // 32-bit architectures
> +       case '5':
> +               // we use EABI on both linux/arm and freebsd/arm.
> +-              if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
> ++              if HEADTYPE == obj.Hlinux {
> ++                      if Ctxt.Goarm == 7 {
> ++                              ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
> ++                      } else {
> ++                              ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
> ++                      }
> ++              } else if HEADTYPE == obj.Hfreebsd {
> +                       // We set a value here that makes no indication of which
> +                       // float ABI the object uses, because this is information
> +                       // used by the dynamic linker to compare executables and
> diff --git a/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
> new file mode 100644
> index 0000000..983323a
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
> @@ -0,0 +1,50 @@
> +Accept CC with multiple words in its name
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go        2015-07-29 14:48:40.323185807 -0700
> ++++ go/src/cmd/go/build.go     2015-07-30 07:37:40.529818586 -0700
> +@@ -2805,12 +2805,24 @@
> +       return b.ccompilerCmd("CC", defaultCC, objdir)
> + }
> +
> ++// gccCmd returns a gcc command line prefix
> ++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gccCmdForReal() []string {
> ++      return envList("CC", defaultCC)
> ++}
> ++
> + // gxxCmd returns a g++ command line prefix
> + // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> + func (b *builder) gxxCmd(objdir string) []string {
> +       return b.ccompilerCmd("CXX", defaultCXX, objdir)
> + }
> +
> ++// gxxCmd returns a g++ command line prefix
> ++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gxxCmdForReal() []string {
> ++      return envList("CXX", defaultCXX)
> ++}
> ++
> + // ccompilerCmd returns a command line prefix for the given environment
> + // variable and using the default command when the variable is empty.
> + func (b *builder) ccompilerCmd(envvar, defcmd, objdir string) []string {
> +Index: go/src/cmd/go/env.go
> +===================================================================
> +--- go.orig/src/cmd/go/env.go  2015-07-29 14:48:40.323185807 -0700
> ++++ go/src/cmd/go/env.go       2015-07-30 07:40:54.461655721 -0700
> +@@ -52,10 +52,9 @@
> +
> +       if goos != "plan9" {
> +               cmd := b.gccCmd(".")
> +-              env = append(env, envVar{"CC", cmd[0]})
> ++              env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
> +               env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
> +-              cmd = b.gxxCmd(".")
> +-              env = append(env, envVar{"CXX", cmd[0]})
> ++              env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
> +       }
> +
> +       if buildContext.CgoEnabled {
> diff --git a/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
> new file mode 100644
> index 0000000..2f6156e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
> @@ -0,0 +1,17 @@
> +Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash      2015-07-29 13:28:11.334031696 -0700
> ++++ go/src/make.bash   2015-07-29 13:36:55.814465630 -0700
> +@@ -158,7 +158,7 @@
> + fi
> +
> + echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> ++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> + echo
> +
> + rm -f "$GOTOOLDIR"/go_bootstrap
> diff --git a/meta/recipes-devtools/go/go-1.6/gotooldir.patch b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
> new file mode 100644
> index 0000000..9467025
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
> @@ -0,0 +1,30 @@
> +Define tooldir in relation to GOTOOLDIR env var
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/go/build/build.go
> +===================================================================
> +--- go.orig/src/go/build/build.go
> ++++ go/src/go/build/build.go
> +@@ -1388,7 +1388,7 @@ func init() {
> + }
> +
> + // ToolDir is the directory containing build tools.
> +-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
> ++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
> +
> + // IsLocalImport reports whether the import path is
> + // a local import path, like ".", "..", "./foo", or "../foo".
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
> +               }
> +
> +               cgoExe := tool("cgo")
> +-              if a.cgo != nil && a.cgo.target != "" {
> ++              if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
> +                       cgoExe = a.cgo.target
> +               }
> +               outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
> diff --git a/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> new file mode 100644
> index 0000000..afbae02
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> @@ -0,0 +1,63 @@
> +Add new option --target-only to build target components
> +Separates the host and target pieces of build
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash
> ++++ go/src/make.bash
> +@@ -143,12 +143,23 @@ if [ "$1" = "--no-clean" ]; then
> +       buildall=""
> +       shift
> + fi
> +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
> +-mv cmd/dist/dist "$GOTOOLDIR"/dist
> +-echo
> +
> +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
> ++do_host_build="yes"
> ++do_target_build="yes"
> ++if [ "$1" = "--target-only" ]; then
> ++      do_host_build="no"
> ++      shift
> ++elif [ "$1" = "--host-only" ]; then
> ++      do_target_build="no"
> ++      shift
> ++fi
> ++
> ++if [ "$do_host_build" = "yes" ]; then
> ++      ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++      # Delay move of dist tool to now, because bootstrap may clear tool directory.
> ++      mv cmd/dist/dist "$GOTOOLDIR"/dist
> ++      echo
> ++
> +       echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
> +       # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
> +       # use the host compiler, CC, from `cmd/dist/dist env` instead.
> +@@ -157,11 +168,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
> +       echo
> + fi
> +
> +-echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> +-echo
> ++if [ "$do_target_build" = "yes" ]; then
> ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
> ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
> ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
> ++      rm -rf ./host-tools
> ++      mkdir ./host-tools
> ++      mv "$GOTOOLDIR"/* ./host-tools
> ++      GOTOOLDIR="$PWD/host-tools"
> ++    fi
> ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
> ++    echo
> +
> +-rm -f "$GOTOOLDIR"/go_bootstrap
> ++    rm -f "$GOTOOLDIR"/go_bootstrap
> ++fi
> +
> + if [ "$1" != "--no-banner" ]; then
> +       "$GOTOOLDIR"/dist banner
> diff --git a/meta/recipes-devtools/go/go-1.6/syslog.patch b/meta/recipes-devtools/go/go-1.6/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.6/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger


This patch was something that I brought into my go recipes a while back,
but probably isn't upstreamable and isn't generally needed any more.

> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go        2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go    2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> +
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> +       // Severity.
> +
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> +       writeString(p Priority, hostname, tag, s, nl string) error
> +       close() error
> ++      setWriteDeadline(t time.Time) error
> + }
> +
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> +               nl = "\n"
> +       }
> +
> +-      err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++      err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++      if err != nil {
> ++              return 0, err
> ++      }
> ++      err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> +       if err != nil {
> +               return 0, err
> +       }
> +@@ -305,6 +313,10 @@
> +       return n.conn.Close()
> + }
> +
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++      return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go   2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go       2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> +       logPaths := []string{"/dev/log", "/var/run/syslog"}
> +       for _, network := range logTypes {
> +               for _, path := range logPaths {
> +-                      conn, err := net.Dial(network, path)
> ++                      conn, err := net.DialTimeout(network, path, connectTimeout)
> +                       if err != nil {
> +                               continue
> +                       } else {
> diff --git a/meta/recipes-devtools/go/go-1.7.inc b/meta/recipes-devtools/go/go-1.7.inc
> new file mode 100644
> index 0000000..5c3004e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7.inc
> @@ -0,0 +1,19 @@
> +require go-common.inc
> +
> +PV = "1.7.4"
> +GO_BASEVERSION = "1.7"
> +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> +
> +LIC_FILES_CHKSUM = "file://LICENSE;md5=5d4950ecb7b26d2c5e4e7b4e0dd74707"
> +
> +SRC_URI += "\
> +       file://armhf-elf-header.patch \
> +       file://syslog.patch \
> +       file://fix-target-cc-for-build.patch \
> +       file://fix-cc-handling.patch \
> +       file://split-host-and-target-build.patch \
> +       file://gotooldir.patch \
> +"
> +SRC_URI[md5sum] = "49c1076428a5d3b5ad7ac65233fcca2f"
> +SRC_URI[sha256sum] = "4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc"
> +
> diff --git a/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> new file mode 100644
> index 0000000..1e3a16b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> @@ -0,0 +1,23 @@
> +Encode arm EABI ( hard/soft ) calling convention in ELF header

This patch shouldn't be needed, at least for go1.7 and later, possibly
even go1.6.  It's an artifact
leftover from the old C implementation of the compiler.

> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/link/internal/ld/elf.go
> +===================================================================
> +--- go.orig/src/cmd/link/internal/ld/elf.go
> ++++ go/src/cmd/link/internal/ld/elf.go
> +@@ -827,7 +827,13 @@
> +       // 32-bit architectures
> +       case '5':
> +               // we use EABI on both linux/arm and freebsd/arm.
> +-              if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
> ++              if HEADTYPE == obj.Hlinux {
> ++                      if Ctxt.Goarm == 7 {
> ++                              ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
> ++                      } else {
> ++                              ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
> ++                      }
> ++              } else if HEADTYPE == obj.Hfreebsd {
> +                       // We set a value here that makes no indication of which
> +                       // float ABI the object uses, because this is information
> +                       // used by the dynamic linker to compare executables and
> diff --git a/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
> new file mode 100644
> index 0000000..a67caf4
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
> @@ -0,0 +1,50 @@
> +Accept CC with multiple words in its name
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -2991,12 +2991,24 @@ func (b *builder) gccCmd(objdir string)
> +       return b.ccompilerCmd("CC", defaultCC, objdir)
> + }
> +
> ++// gccCmd returns a gcc command line prefix
> ++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gccCmdForReal() []string {
> ++      return envList("CC", defaultCC)
> ++}
> ++
> + // gxxCmd returns a g++ command line prefix
> + // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> + func (b *builder) gxxCmd(objdir string) []string {
> +       return b.ccompilerCmd("CXX", defaultCXX, objdir)
> + }
> +
> ++// gxxCmd returns a g++ command line prefix
> ++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
> ++func (b *builder) gxxCmdForReal() []string {
> ++      return envList("CXX", defaultCXX)
> ++}
> ++
> + // gfortranCmd returns a gfortran command line prefix.
> + func (b *builder) gfortranCmd(objdir string) []string {
> +       return b.ccompilerCmd("FC", "gfortran", objdir)
> +Index: go/src/cmd/go/env.go
> +===================================================================
> +--- go.orig/src/cmd/go/env.go
> ++++ go/src/cmd/go/env.go
> +@@ -51,10 +51,9 @@ func mkEnv() []envVar {
> +
> +       if goos != "plan9" {
> +               cmd := b.gccCmd(".")
> +-              env = append(env, envVar{"CC", cmd[0]})
> ++              env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
> +               env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
> +-              cmd = b.gxxCmd(".")
> +-              env = append(env, envVar{"CXX", cmd[0]})
> ++              env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
> +       }
> +
> +       if buildContext.CgoEnabled {
> diff --git a/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
> new file mode 100644
> index 0000000..2f6156e
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
> @@ -0,0 +1,17 @@
> +Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash      2015-07-29 13:28:11.334031696 -0700
> ++++ go/src/make.bash   2015-07-29 13:36:55.814465630 -0700
> +@@ -158,7 +158,7 @@
> + fi
> +
> + echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> ++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> + echo
> +
> + rm -f "$GOTOOLDIR"/go_bootstrap
> diff --git a/meta/recipes-devtools/go/go-1.7/gotooldir.patch b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
> new file mode 100644
> index 0000000..9467025
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
> @@ -0,0 +1,30 @@
> +Define tooldir in relation to GOTOOLDIR env var
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/go/build/build.go
> +===================================================================
> +--- go.orig/src/go/build/build.go
> ++++ go/src/go/build/build.go
> +@@ -1388,7 +1388,7 @@ func init() {
> + }
> +
> + // ToolDir is the directory containing build tools.
> +-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
> ++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
> +
> + // IsLocalImport reports whether the import path is
> + // a local import path, like ".", "..", "./foo", or "../foo".
> +Index: go/src/cmd/go/build.go
> +===================================================================
> +--- go.orig/src/cmd/go/build.go
> ++++ go/src/cmd/go/build.go
> +@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
> +               }
> +
> +               cgoExe := tool("cgo")
> +-              if a.cgo != nil && a.cgo.target != "" {
> ++              if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
> +                       cgoExe = a.cgo.target
> +               }
> +               outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
> diff --git a/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
> new file mode 100644
> index 0000000..b0dd95b
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
> @@ -0,0 +1,62 @@
> +Add new option --target-only to build target components
> +Separates the host and target pieces of build
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +Index: go/src/make.bash
> +===================================================================
> +--- go.orig/src/make.bash
> ++++ go/src/make.bash
> +@@ -154,13 +154,22 @@ if [ "$1" = "--no-clean" ]; then
> +       buildall=""
> +       shift
> + fi
> +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++do_host_build="yes"
> ++do_target_build="yes"
> ++if [ "$1" = "--target-only" ]; then
> ++      do_host_build="no"
> ++      shift
> ++elif [ "$1" = "--host-only" ]; then
> ++      do_target_build="no"
> ++      shift
> ++fi
> +
> +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
> +-mv cmd/dist/dist "$GOTOOLDIR"/dist
> +-echo
> ++if [ "$do_host_build" = "yes" ]; then
> ++      ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> ++      # Delay move of dist tool to now, because bootstrap may clear tool directory.
> ++      mv cmd/dist/dist "$GOTOOLDIR"/dist
> ++      echo
> +
> +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
> +       echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
> +       # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
> +       # use the host compiler, CC, from `cmd/dist/dist env` instead.
> +@@ -169,11 +178,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
> +       echo
> + fi
> +
> +-echo "##### Building packages and commands for $GOOS/$GOARCH."
> +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> +-echo
> ++if [ "$do_target_build" = "yes" ]; then
> ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
> ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
> ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
> ++      rm -rf ./host-tools
> ++      mkdir ./host-tools
> ++      mv "$GOTOOLDIR"/* ./host-tools
> ++      GOTOOLDIR="$PWD/host-tools"
> ++    fi
> ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
> ++    echo
> +
> +-rm -f "$GOTOOLDIR"/go_bootstrap
> ++    rm -f "$GOTOOLDIR"/go_bootstrap
> ++fi
> +
> + if [ "$1" != "--no-banner" ]; then
> +       "$GOTOOLDIR"/dist banner
> diff --git a/meta/recipes-devtools/go/go-1.7/syslog.patch b/meta/recipes-devtools/go/go-1.7/syslog.patch
> new file mode 100644
> index 0000000..29be06f
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-1.7/syslog.patch
> @@ -0,0 +1,62 @@
> +Add timeouts to logger
> +
> +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> +Upstream-Status: Pending
> +
> +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> +--- go/src/log/syslog/syslog.go        2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go    2014-10-03 11:44:37.710403200 -0700
> +@@ -33,6 +33,9 @@
> + const severityMask = 0x07
> + const facilityMask = 0xf8
> +
> ++var writeTimeout = 1 * time.Second
> ++var connectTimeout = 1 * time.Second
> ++
> + const (
> +       // Severity.
> +
> +@@ -100,6 +103,7 @@
> + type serverConn interface {
> +       writeString(p Priority, hostname, tag, s, nl string) error
> +       close() error
> ++      setWriteDeadline(t time.Time) error
> + }
> +
> + type netConn struct {
> +@@ -273,7 +277,11 @@
> +               nl = "\n"
> +       }
> +
> +-      err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> ++      err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> ++      if err != nil {
> ++              return 0, err
> ++      }
> ++      err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> +       if err != nil {
> +               return 0, err
> +       }
> +@@ -305,6 +313,10 @@
> +       return n.conn.Close()
> + }
> +
> ++func (n *netConn) setWriteDeadline(t time.Time) error {
> ++      return n.conn.SetWriteDeadline(t)
> ++}
> ++
> + // NewLogger creates a log.Logger whose output is written to
> + // the system log service with the specified priority. The logFlag
> + // argument is the flag set passed through to log.New to create
> +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> +--- go/src/log/syslog/syslog_unix.go   2013-11-28 13:38:28.000000000 -0800
> ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go       2014-10-03 11:44:39.010403175 -0700
> +@@ -19,7 +19,7 @@
> +       logPaths := []string{"/dev/log", "/var/run/syslog"}
> +       for _, network := range logTypes {
> +               for _, path := range logPaths {
> +-                      conn, err := net.Dial(network, path)
> ++                      conn, err := net.DialTimeout(network, path, connectTimeout)
> +                       if err != nil {
> +                               continue
> +                       } else {
> diff --git a/meta/recipes-devtools/go/go-common.inc b/meta/recipes-devtools/go/go-common.inc
> new file mode 100644
> index 0000000..f74b8b7
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-common.inc
> @@ -0,0 +1,22 @@
> +SUMMARY = "Go programming language compiler"
> +DESCRIPTION = " The Go programming language is an open source project to make \
> + programmers more productive. Go is expressive, concise, clean, and\
> + efficient. Its concurrency mechanisms make it easy to write programs\
> + that get the most out of multicore and networked machines, while its\
> + novel type system enables flexible and modular program construction.\
> + Go compiles quickly to machine code yet has the convenience of\
> + garbage collection and the power of run-time reflection. It's a\
> + fast, statically typed, compiled language that feels like a\
> + dynamically typed, interpreted language."
> +
> +HOMEPAGE = " http://golang.org/"
> +LICENSE = "BSD-3-Clause"
> +
> +inherit goarch
> +
> +SRC_URI = "http://golang.org/dl/go${PV}.src.tar.gz"
> +S = "${WORKDIR}/go"
> +B = "${S}"
> +
> +INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
> +SSTATE_SCAN_CMD = "true"
> diff --git a/meta/recipes-devtools/go/go-cross.inc b/meta/recipes-devtools/go/go-cross.inc
> new file mode 100644
> index 0000000..a6b31c8
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-cross.inc
> @@ -0,0 +1,10 @@
> +inherit cross
> +
> +DEPENDS += "gcc-cross-${TARGET_ARCH}"
> +
> +PN = "go-cross-${TARGET_ARCH}"
> +
> +FILESEXTRAPATHS =. "${FILE_DIRNAME}/go-cross:"
> +
> +GOROOT_FINAL = "${libdir}/go"
> +export GOROOT_FINAL
> diff --git a/meta/recipes-devtools/go/go-cross_1.7.bb b/meta/recipes-devtools/go/go-cross_1.7.bb
> new file mode 100644
> index 0000000..56ee084
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-cross_1.7.bb
> @@ -0,0 +1,5 @@
> +require go-cross.inc
> +require go_${PV}.bb
> +
> +# Go binaries are not understood by the strip tool.
> +INHIBIT_SYSROOT_STRIP = "1"
> diff --git a/meta/recipes-devtools/go/go-native.inc b/meta/recipes-devtools/go/go-native.inc
> new file mode 100644
> index 0000000..89bc634
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-native.inc
> @@ -0,0 +1,54 @@
> +inherit native
> +
> +export GOOS = "${BUILD_GOOS}"
> +export GOARCH = "${BUILD_GOARCH}"
> +export GOROOT_FINAL = "${STAGING_LIBDIR_NATIVE}/go"
> +export CGO_ENABLED = "1"
> +
> +do_configure[noexec] = "1"
> +
> +do_compile() {
> +       export GOBIN="${B}/bin"
> +       rm -rf ${GOBIN}
> +       mkdir ${GOBIN}
> +
> +       export TMPDIR=${WORKDIR}/build-tmp
> +       mkdir -p ${WORKDIR}/build-tmp
> +
> +       cd src
> +       CGO_ENABLED=0 ./make.bash --host-only
> +}
> +
> +make_wrapper() {
> +       rm -f ${D}${bindir}/$2
> +       cat <<END >${D}${bindir}/$2
> +#!/bin/bash
> +here=\`dirname \$0\`
> +export GOROOT="${GOROOT:-\`readlink -f \$here/../lib/go\`}"
> +\$here/../lib/go/bin/$1 "\$@"
> +END
> +       chmod +x ${D}${bindir}/$2
> +}
> +
> +do_install() {
> +       install -d ${D}${libdir}/go
> +       cp -a ${B}/pkg ${D}${libdir}/go/
> +       install -d ${D}${libdir}/go/src
> +       (cd ${S}/src; for d in *; do \
> +               [ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +       done)
> +
> +       install -d ${D}${bindir} ${D}${libdir}/go/bin
> +       for f in ${B}/bin/*
> +       do
> +               base=`basename $f`
> +               install -m755 $f ${D}${libdir}/go/bin
> +               make_wrapper $base $base
> +       done
> +}
> +
> +do_package[noexec] = "1"
> +do_packagedata[noexec] = "1"
> +do_package_write_ipk[noexec] = "1"
> +do_package_write_deb[noexec] = "1"
> +do_package_write_rpm[noexec] = "1"
> diff --git a/meta/recipes-devtools/go/go-native_1.4.bb b/meta/recipes-devtools/go/go-native_1.4.bb
> new file mode 100644
> index 0000000..bbf3c0d
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go-native_1.4.bb
> @@ -0,0 +1,2 @@
> +require ${PN}.inc
> +require go-${PV}.inc
> diff --git a/meta/recipes-devtools/go/go.inc b/meta/recipes-devtools/go/go.inc
> new file mode 100644
> index 0000000..d0d443c
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go.inc
> @@ -0,0 +1,80 @@
> +inherit goarch
> +# libgcc is required for the target specific libraries to build properly
> +DEPENDS += " go-native libgcc"
> +# Prevent runstrip from running because you get errors when the host arch != target arch
> +INHIBIT_PACKAGE_STRIP = "1"
> +INHIBIT_SYSROOT_STRIP = "1"
> +
> +export GOHOSTOS = "${BUILD_GOOS}"
> +export GOHOSTARCH = "${BUILD_GOARCH}"
> +export GOOS = "${TARGET_GOOS}"
> +export GOARCH = "${TARGET_GOARCH}"
> +export GOARM = "${TARGET_GOARM}"
> +export GOROOT_BOOTSTRAP = "${STAGING_LIBDIR_NATIVE}/go"
> +export GOROOT_FINAL = "${libdir}/go"
> +export CGO_ENABLED = "1"
> +export CC_FOR_TARGET = "${CC}"
> +export CXX_FOR_TARGET = "${CXX}"
> +
> +do_configure[noexec] = "1"
> +
> +do_compile_prepend_class-cross() {
> +       export CGO_ENABLED=0
> +}
> +
> +do_compile() {
> +       export GOBIN="${B}/bin"
> +       export CC="${@d.getVar('BUILD_CC', True).strip()}"
> +       rm -rf ${GOBIN} ${B}/pkg
> +       mkdir ${GOBIN}
> +
> +       export TMPDIR=${WORKDIR}/build-tmp
> +       mkdir -p ${WORKDIR}/build-tmp
> +
> +       cd src
> +       ./make.bash --host-only
> +       # Ensure cgo.a is built with the target toolchain
> +       export GOBIN="${B}/target/bin"
> +       rm -rf ${GOBIN}
> +       mkdir -p ${GOBIN}
> +       GO_FLAGS="-a" ./make.bash
> +}
> +
> +do_install_class-target() {
> +       install -d ${D}${libdir}/go
> +       cp -a ${B}/pkg ${D}${libdir}/go/
> +       install -d ${D}${libdir}/go/src
> +       (cd ${S}/src; for d in *; do \
> +               [ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +       done)
> +       install -d ${D}${bindir}
> +       if [ -d ${B}/bin/${GOOS}_${GOARCH} ]
> +       then
> +               install -m 0755 ${B}/bin/${GOOS}_${GOARCH}/* ${D}${bindir}
> +       else
> +               install -m 0755 ${B}/bin/* ${D}${bindir}
> +       fi
> +}
> +
> +do_install_class-cross() {
> +       install -d ${D}${libdir}/go
> +       cp -a ${B}/pkg ${D}${libdir}/go/
> +       install -d ${D}${libdir}/go/src
> +       (cd ${S}/src; for d in *; do \
> +               [ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
> +       done)
> +       install -d ${D}${bindir}
> +       for f in ${B}/bin/go*
> +       do
> +               install -m755 $f ${D}${bindir}
> +       done
> +}
> +
> +INSANE_SKIP_${PN} += "staticdev"
> +RDEPENDS_${PN} += "perl"
> +
> +do_package[noexec] = "1"
> +do_packagedata[noexec] = "1"
> +do_package_write_ipk[noexec] = "1"
> +do_package_write_deb[noexec] = "1"
> +do_package_write_rpm[noexec] = "1"
> diff --git a/meta/recipes-devtools/go/go_1.6.bb b/meta/recipes-devtools/go/go_1.6.bb
> new file mode 100644
> index 0000000..2f59033
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go_1.6.bb
> @@ -0,0 +1,4 @@
> +require go.inc
> +require go-${PV}.inc
> +
> +BBCLASSEXTEND = "cross"
> diff --git a/meta/recipes-devtools/go/go_1.7.bb b/meta/recipes-devtools/go/go_1.7.bb
> new file mode 100644
> index 0000000..e7a6ab2
> --- /dev/null
> +++ b/meta/recipes-devtools/go/go_1.7.bb
> @@ -0,0 +1,2 @@
> +require go-${PV}.inc
> +require go.inc
> diff --git a/meta/recipes-extended/go-examples/files/helloworld.go b/meta/recipes-extended/go-examples/files/helloworld.go
> new file mode 100644
> index 0000000..0253c40
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/files/helloworld.go
> @@ -0,0 +1,10 @@
> +// You can edit this code!
> +// Click here and start typing.
> +// taken from https://golang.org/
> +package main
> +
> +import "fmt"
> +
> +func main() {
> +       fmt.Println("Hello, 世界")
> +}
> diff --git a/meta/recipes-extended/go-examples/go-examples.inc b/meta/recipes-extended/go-examples/go-examples.inc
> new file mode 100644
> index 0000000..c632681
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/go-examples.inc

Does go-examples belong under meta/recipes-extended?  Maybe move it
under meta-skeleton/recipes-skeleton?

> @@ -0,0 +1,10 @@
> +DESCRIPTION = "This is a simple example recipe that cross-compiles a Go program."
> +SECTION = "examples"
> +HOMEPAGE = "https://golang.org/"
> +
> +LICENSE = "MIT"
> +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
> +
> +S = "${WORKDIR}"
> +
> +inherit go
> diff --git a/meta/recipes-extended/go-examples/go-helloworld_0.1.bb b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> new file mode 100644
> index 0000000..930c57d
> --- /dev/null
> +++ b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> @@ -0,0 +1,13 @@
> +require go-examples.inc
> +
> +SRC_URI += " \
> +  file://helloworld.go \
> +"
> +
> +do_compile() {
> +       go build helloworld.go
> +}
> +
> +do_install() {
> +       install -D -m 0755 ${S}/helloworld ${D}${bindir}/helloworld
> +}
> --
> 2.10.2
>
> --
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core
Khem Raj March 8, 2017, 10:19 p.m. | #4
Hi Matt

Thanks for good feedback.
I have snipped the mail and replied below

On 17-03-06 12:00:44, Matt Madison wrote:
> On Fri, Mar 3, 2017 at 3:18 PM, Khem Raj <raj.khem@gmail.com> wrote:
> > * This is converging the recipes for go from
> >   meta-virtualization and oe-meta-go
> >
> > * Add recipes for go 1.7
> >
> > * go.bbclass is added to ease out writing
> >   recipes for go packages
> >
> > * go-examples: Add an example, helloworld written in go
> >   This should serve as temlate for writing go recipes
> 
> 
> I have some specific comments below, but as a general question,
> how about crosssdk and cross-canadian recipes for the toolchain?

I think thats a good idea, may be for a later times, probbaly in 2.4
timeframe

> > +DEPENDS += "go-cross-${TARGET_ARCH}"
> > +DEPENDS_class-native += "go-native"
> > +
> > +FILES_${PN}-staticdev += "${GOSRC_FINAL}/${GO_IMPORT}"
> > +FILES_${PN}-staticdev += "${GOPKG_FINAL}/${GO_IMPORT}*"
> > +
> > +GO_INSTALL ?= "${GO_IMPORT}/..."
> > +
> > +do_go_compile() {
> > +       GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
> > +       if test -n "${GO_INSTALL}" ; then
> > +               GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}
> 
> Have you tested to make sure that the go install won't update and
> install packages into the staging libdir during this compilation step?
>  There is that risk, as the go tool will update dependent packages
> even in GOROOT if it's writeable.  In meta-golang I added some patches
> to the go build tool to prevent this.

Currently, it does not check, and I havent run into problem for my go
apps feel free to send your enhancements in
this area, as follow up I will test it out here and include it in
susequent pulls

> 
> > +       fi
> > +}
> > +
> > +do_go_install() {
> > +       rm -rf ${WORKDIR}/staging
> > +       install -d ${WORKDIR}/staging${GOROOT_FINAL} ${D}${GOROOT_FINAL}
> > +       tar -C ${S} -cf - . | tar -C ${WORKDIR}/staging${GOROOT_FINAL} -xpvf -
> > +
> > +       find ${WORKDIR}/staging${GOROOT_FINAL} \( \
> > +               -name \*.indirectionsymlink -o \
> > +               -name .git\* -o                \
> > +               -name .hg -o                   \
> > +               -name .svn -o                  \
> > +               -name .pc\* -o                 \
> > +               -name patches\*                \
> > +               \) -print0 | \
> > +       xargs -r0 rm -rf
> 
> Perhaps you could use --exclude-vcs and --exclude=pattern on the tar
> command to prevent the files from being populated in the first place?

good point. I will do that in a followup.

> 
> > +
> > +       tar -C ${WORKDIR}/staging${GOROOT_FINAL} -cf - . | \
> > +       tar -C ${D}${GOROOT_FINAL} -xpvf -
> > +
> > +       chown -R root:root "${D}${GOROOT_FINAL}"
> 
> Use --no-same-owner on the tar command to eliminate the chown.

Right.

> > +
> > +       if test -e "${D}${GOBIN_FINAL}" ; then
> > +               install -d -m 0755 "${D}${bindir}"
> > +               find "${D}${GOBIN_FINAL}" ! -type d -print0 | xargs -r0 mv --target-directory="${D}${bindir}"
> > +               rmdir -p "${D}${GOBIN_FINAL}" || true
> > +       fi
> > +}
> > +
> > +do_compile() {
> > +       do_go_compile
> > +}
> > +
> > +do_install() {
> > +       do_go_install
> > +}
> 
> This is a bbclass, so these two functions should not be here, and the
> ones above should be named 'go_do_XXX' instead of 'do_go_XXX'.  Then
> add an EXPORT_FUNCTIONS line to export them.
> 

Seems sensible to do as well.

> 
> > diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
> > new file mode 100644
> > index 0000000..119703c
> > --- /dev/null
> > +++ b/meta/classes/goarch.bbclass
> > @@ -0,0 +1,46 @@
> > +BUILD_GOOS = "${@go_map_os(d.getVar('BUILD_OS', True), d)}"
> > +BUILD_GOARCH = "${@go_map_arch(d.getVar('BUILD_ARCH', True), d)}"
> > +BUILD_GOTUPLE = "${BUILD_GOOS}_${BUILD_GOARCH}"
> > +HOST_GOOS = "${@go_map_os(d.getVar('HOST_OS', True), d)}"
> > +HOST_GOARCH = "${@go_map_arch(d.getVar('HOST_ARCH', True), d)}"
> > +HOST_GOARM = "${@go_map_arm(d.getVar('HOST_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> > +HOST_GOTUPLE = "${HOST_GOOS}_${HOST_GOARCH}"
> > +TARGET_GOOS = "${@go_map_os(d.getVar('TARGET_OS', True), d)}"
> > +TARGET_GOARCH = "${@go_map_arch(d.getVar('TARGET_ARCH', True), d)}"
> > +TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
> > +TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
> > +GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE',True) == d.getVar('HOST_GOTUPLE',True)]}"
> > +
> > +def go_map_arch(a, d):
> > +    import re
> > +    if re.match('i.86', a):
> > +        return '386'
> > +    elif a == 'x86_64':
> > +        return 'amd64'
> > +    elif re.match('arm.*', a):
> > +        return 'arm'
> > +    elif re.match('aarch64.*', a):
> > +        return 'arm64'
> > +    elif re.match('mips64el*', a):
> > +        return 'mips64le'
> > +    elif re.match('mips64*', a):
> > +        return 'mips64'
> > +    elif re.match('p(pc|owerpc)(64)', a):
> > +        return 'ppc64'
> > +    elif re.match('p(pc|owerpc)(64el)', a):
> > +        return 'ppc64le'
> > +    else:
> > +        raise bb.parse.SkipPackage("Unsupported CPU architecture: %s" % a)
> > +
> > +def go_map_arm(a, f, d):
> > +    import re
> > +    if re.match('arm.*', a) and re.match('arm.*7.*', f):
> > +        return '7'
> > +    return ''
> > +
> > +def go_map_os(o, d):
> > +    if o.startswith('linux'):
> > +        return 'linux'
> > +    return o
> > +
> > +
> 
> 
> For the following go-1.4 recipes:
> 
> I wouldn't recommend fixing go-native at version 1.4, which is now
> postiviely ancient.
> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it
> in the right place so
> that make.bash finds it.  This way, you can have all the go toolchain
> recipes build at the
> same version.  The go team only supports go1.4 for bootstrapping the
> compiler build now
> anyway, IIRC.

since we do not use go-native for anything other than bootstrapping
right now, thats why it is there. there is no intent of providing a
go-native version for general consumption

> 
> > diff --git a/meta/recipes-devtools/go/go-1.4.inc b/meta/recipes-devtools/go/go-1.4.inc
> > new file mode 100644
> > index 0000000..2f500f3
> > --- /dev/null
> > +++ b/meta/recipes-devtools/go/go-1.4.inc
> > @@ -0,0 +1,16 @@
> > +require go-common.inc
> > +
> > +PV = "1.4.3"
> > +GO_BASEVERSION = "1.4"
> > +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> > +
> > +SRC_URI += "\
> > +        file://016-armhf-elf-header.patch \
> > +        file://go-cross-backport-cmd-link-support-new-386-amd64-rel.patch \
> > +        file://syslog.patch \
> > +        file://0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch \
> > +"
> > diff --git a/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> > new file mode 100644
> > index 0000000..afbae02
> > --- /dev/null
> > +++ b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
> > @@ -0,0 +1,63 @@
> > +Add new option --target-only to build target components
> > +Separates the host and target pieces of build
> > +
> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> > +Upstream-Status: Pending
> > +Index: go/src/make.bash
> > +===================================================================
> > +--- go.orig/src/make.bash
> > ++++ go/src/make.bash
> > +@@ -143,12 +143,23 @@ if [ "$1" = "--no-clean" ]; then
> > +       buildall=""
> > +       shift
> > + fi
> > +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> > +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
> > +-mv cmd/dist/dist "$GOTOOLDIR"/dist
> > +-echo
> > +
> > +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
> > ++do_host_build="yes"
> > ++do_target_build="yes"
> > ++if [ "$1" = "--target-only" ]; then
> > ++      do_host_build="no"
> > ++      shift
> > ++elif [ "$1" = "--host-only" ]; then
> > ++      do_target_build="no"
> > ++      shift
> > ++fi
> > ++
> > ++if [ "$do_host_build" = "yes" ]; then
> > ++      ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
> > ++      # Delay move of dist tool to now, because bootstrap may clear tool directory.
> > ++      mv cmd/dist/dist "$GOTOOLDIR"/dist
> > ++      echo
> > ++
> > +       echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
> > +       # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
> > +       # use the host compiler, CC, from `cmd/dist/dist env` instead.
> > +@@ -157,11 +168,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
> > +       echo
> > + fi
> > +
> > +-echo "##### Building packages and commands for $GOOS/$GOARCH."
> > +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
> > +-echo
> > ++if [ "$do_target_build" = "yes" ]; then
> > ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
> > ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
> > ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
> > ++      rm -rf ./host-tools
> > ++      mkdir ./host-tools
> > ++      mv "$GOTOOLDIR"/* ./host-tools
> > ++      GOTOOLDIR="$PWD/host-tools"
> > ++    fi
> > ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
> > ++    echo
> > +
> > +-rm -f "$GOTOOLDIR"/go_bootstrap
> > ++    rm -f "$GOTOOLDIR"/go_bootstrap
> > ++fi
> > +
> > + if [ "$1" != "--no-banner" ]; then
> > +       "$GOTOOLDIR"/dist banner
> > diff --git a/meta/recipes-devtools/go/go-1.6/syslog.patch b/meta/recipes-devtools/go/go-1.6/syslog.patch
> > new file mode 100644
> > index 0000000..29be06f
> > --- /dev/null
> > +++ b/meta/recipes-devtools/go/go-1.6/syslog.patch
> > @@ -0,0 +1,62 @@
> > +Add timeouts to logger
> 
> 
> This patch was something that I brought into my go recipes a while back,
> but probably isn't upstreamable and isn't generally needed any more.

I think we should get rid of 1.6 completely, I did run into issues
compiling host target seprately and this patch helped. we should test go
1.8 e.g. if its not needed anymore

> 
> > +
> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> > +Upstream-Status: Pending
> > +
> > +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
> > +--- go/src/log/syslog/syslog.go        2013-11-28 13:38:28.000000000 -0800
> > ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go    2014-10-03 11:44:37.710403200 -0700
> > +@@ -33,6 +33,9 @@
> > + const severityMask = 0x07
> > + const facilityMask = 0xf8
> > +
> > ++var writeTimeout = 1 * time.Second
> > ++var connectTimeout = 1 * time.Second
> > ++
> > + const (
> > +       // Severity.
> > +
> > +@@ -100,6 +103,7 @@
> > + type serverConn interface {
> > +       writeString(p Priority, hostname, tag, s, nl string) error
> > +       close() error
> > ++      setWriteDeadline(t time.Time) error
> > + }
> > +
> > + type netConn struct {
> > +@@ -273,7 +277,11 @@
> > +               nl = "\n"
> > +       }
> > +
> > +-      err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> > ++      err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
> > ++      if err != nil {
> > ++              return 0, err
> > ++      }
> > ++      err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
> > +       if err != nil {
> > +               return 0, err
> > +       }
> > +@@ -305,6 +313,10 @@
> > +       return n.conn.Close()
> > + }
> > +
> > ++func (n *netConn) setWriteDeadline(t time.Time) error {
> > ++      return n.conn.SetWriteDeadline(t)
> > ++}
> > ++
> > + // NewLogger creates a log.Logger whose output is written to
> > + // the system log service with the specified priority. The logFlag
> > + // argument is the flag set passed through to log.New to create
> > +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
> > +--- go/src/log/syslog/syslog_unix.go   2013-11-28 13:38:28.000000000 -0800
> > ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go       2014-10-03 11:44:39.010403175 -0700
> > +@@ -19,7 +19,7 @@
> > +       logPaths := []string{"/dev/log", "/var/run/syslog"}
> > +       for _, network := range logTypes {
> > +               for _, path := range logPaths {
> > +-                      conn, err := net.Dial(network, path)
> > ++                      conn, err := net.DialTimeout(network, path, connectTimeout)
> > +                       if err != nil {
> > +                               continue
> > +                       } else {
> > diff --git a/meta/recipes-devtools/go/go-1.7.inc b/meta/recipes-devtools/go/go-1.7.inc
> > new file mode 100644
> > index 0000000..5c3004e
> > --- /dev/null
> > +++ b/meta/recipes-devtools/go/go-1.7.inc
> > @@ -0,0 +1,19 @@
> > +require go-common.inc
> > +
> > +PV = "1.7.4"
> > +GO_BASEVERSION = "1.7"
> > +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
> > +
> > +LIC_FILES_CHKSUM = "file://LICENSE;md5=5d4950ecb7b26d2c5e4e7b4e0dd74707"
> > +
> > +SRC_URI += "\
> > +       file://armhf-elf-header.patch \
> > +       file://syslog.patch \
> > +       file://fix-target-cc-for-build.patch \
> > +       file://fix-cc-handling.patch \
> > +       file://split-host-and-target-build.patch \
> > +       file://gotooldir.patch \
> > +"
> > +SRC_URI[md5sum] = "49c1076428a5d3b5ad7ac65233fcca2f"
> > +SRC_URI[sha256sum] = "4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc"
> > +
> > diff --git a/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> > new file mode 100644
> > index 0000000..1e3a16b
> > --- /dev/null
> > +++ b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
> > @@ -0,0 +1,23 @@
> > +Encode arm EABI ( hard/soft ) calling convention in ELF header
> 
> This patch shouldn't be needed, at least for go1.7 and later, possibly
> even go1.6.  It's an artifact
> leftover from the old C implementation of the compiler.

if you can point out where it was fixed in go compiler, it would help in
assessing usablity of this

> 
> > +
> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
> > +Upstream-Status: Pending
> > +Index: go/src/cmd/link/internal/ld/elf.go
> > +===================================================================
> > +--- go.orig/src/cmd/link/internal/ld/elf.go
> > ++++ go/src/cmd/link/internal/ld/elf.go
> > +@@ -827,7 +827,13 @@
> > +       // 32-bit architectures
> > +       case '5':
> > +               // we use EABI on both linux/arm and freebsd/arm.
> > +-              if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
> > ++              if HEADTYPE == obj.Hlinux {
> > ++                      if Ctxt.Goarm == 7 {
> > ++                              ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
> > ++                      } else {
> > ++                              ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
> > ++                      }
> > ++              } else if HEADTYPE == obj.Hfreebsd {
> > +                       // We set a value here that makes no indication of which
> > +                       // float ABI the object uses, because this is information
> > +                       // used by the dynamic linker to compare executables and
> > --- /dev/null
> > +++ b/meta/recipes-extended/go-examples/files/helloworld.go
> > @@ -0,0 +1,10 @@
> > +// You can edit this code!
> > +// Click here and start typing.
> > +// taken from https://golang.org/
> > +package main
> > +
> > +import "fmt"
> > +
> > +func main() {
> > +       fmt.Println("Hello, 世界")
> > +}
> > diff --git a/meta/recipes-extended/go-examples/go-examples.inc b/meta/recipes-extended/go-examples/go-examples.inc
> > new file mode 100644
> > index 0000000..c632681
> > --- /dev/null
> > +++ b/meta/recipes-extended/go-examples/go-examples.inc
> 
> Does go-examples belong under meta/recipes-extended?  Maybe move it
> under meta-skeleton/recipes-skeleton?
> 

We want to run it as a unit test, I am not sure if we include
meta-skeleton in our regular layer mix

> > @@ -0,0 +1,10 @@
> > +DESCRIPTION = "This is a simple example recipe that cross-compiles a Go program."
> > +SECTION = "examples"
> > +HOMEPAGE = "https://golang.org/"
> > +
> > +LICENSE = "MIT"
> > +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
> > +
> > +S = "${WORKDIR}"
> > +
> > +inherit go
> > diff --git a/meta/recipes-extended/go-examples/go-helloworld_0.1.bb b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> > new file mode 100644
> > index 0000000..930c57d
> > --- /dev/null
> > +++ b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
> > @@ -0,0 +1,13 @@
> > +require go-examples.inc
> > +
> > +SRC_URI += " \
> > +  file://helloworld.go \
> > +"
> > +
> > +do_compile() {
> > +       go build helloworld.go
> > +}
> > +
> > +do_install() {
> > +       install -D -m 0755 ${S}/helloworld ${D}${bindir}/helloworld
> > +}
> > --
> > 2.10.2
> >
> > --
> > _______________________________________________
> > Openembedded-core mailing list
> > Openembedded-core@lists.openembedded.org
> > http://lists.openembedded.org/mailman/listinfo/openembedded-core
Kristian Amlie March 9, 2017, 7:03 a.m. | #5
On 08/03/17 23:19, Khem Raj wrote:
>> ...

>> For the following go-1.4 recipes:

>>

>> I wouldn't recommend fixing go-native at version 1.4, which is now

>> postiviely ancient.

>> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it

>> in the right place so

>> that make.bash finds it.  This way, you can have all the go toolchain

>> recipes build at the

>> same version.  The go team only supports go1.4 for bootstrapping the

>> compiler build now

>> anyway, IIRC.

> 

> since we do not use go-native for anything other than bootstrapping

> right now, thats why it is there. there is no intent of providing a

> go-native version for general consumption


Just FYI, in Mender we use the latest go-native, provided by
github.com/mem/oe-meta-go, to compile some build tools. The layer has a
separate go-bootstrap recipe, which is locked to 1.4, for the purpose of
creating go-native and go-cross.

-- 
Kristian
-- 
_______________________________________________
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Openembedded-core@lists.openembedded.org
http://lists.openembedded.org/mailman/listinfo/openembedded-core
Khem Raj March 9, 2017, 7:27 a.m. | #6
On Wed, Mar 8, 2017 at 11:03 PM, Kristian Amlie
<kristian.amlie@mender.io> wrote:
> On 08/03/17 23:19, Khem Raj wrote:

>>> ...

>>> For the following go-1.4 recipes:

>>>

>>> I wouldn't recommend fixing go-native at version 1.4, which is now

>>> postiviely ancient.

>>> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it

>>> in the right place so

>>> that make.bash finds it.  This way, you can have all the go toolchain

>>> recipes build at the

>>> same version.  The go team only supports go1.4 for bootstrapping the

>>> compiler build now

>>> anyway, IIRC.

>>

>> since we do not use go-native for anything other than bootstrapping

>> right now, thats why it is there. there is no intent of providing a

>> go-native version for general consumption

>

> Just FYI, in Mender we use the latest go-native, provided by

> github.com/mem/oe-meta-go, to compile some build tools. The layer has a

> separate go-bootstrap recipe, which is locked to 1.4, for the purpose of

> creating go-native and go-cross.


Thanks for info. we should add it here as well.

>

> --

> Kristian

-- 
_______________________________________________
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Matt Madison March 9, 2017, 1:17 p.m. | #7
On Wed, Mar 8, 2017 at 2:19 PM, Khem Raj <raj.khem@gmail.com> wrote:
> Hi Matt
>
> Thanks for good feedback.
> I have snipped the mail and replied below
>
> On 17-03-06 12:00:44, Matt Madison wrote:
>> On Fri, Mar 3, 2017 at 3:18 PM, Khem Raj <raj.khem@gmail.com> wrote:
>> > * This is converging the recipes for go from
>> >   meta-virtualization and oe-meta-go
>> >
>> > * Add recipes for go 1.7
>> >
>> > * go.bbclass is added to ease out writing
>> >   recipes for go packages
>> >
>> > * go-examples: Add an example, helloworld written in go
>> >   This should serve as temlate for writing go recipes
>>
>>
>> I have some specific comments below, but as a general question,
>> how about crosssdk and cross-canadian recipes for the toolchain?
>
> I think thats a good idea, may be for a later times, probbaly in 2.4
> timeframe

The compiler recipes in meta-golang already handle all of these variants.

>
>> > +DEPENDS += "go-cross-${TARGET_ARCH}"
>> > +DEPENDS_class-native += "go-native"
>> > +
>> > +FILES_${PN}-staticdev += "${GOSRC_FINAL}/${GO_IMPORT}"
>> > +FILES_${PN}-staticdev += "${GOPKG_FINAL}/${GO_IMPORT}*"
>> > +
>> > +GO_INSTALL ?= "${GO_IMPORT}/..."
>> > +
>> > +do_go_compile() {
>> > +       GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
>> > +       if test -n "${GO_INSTALL}" ; then
>> > +               GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}
>>
>> Have you tested to make sure that the go install won't update and
>> install packages into the staging libdir during this compilation step?
>>  There is that risk, as the go tool will update dependent packages
>> even in GOROOT if it's writeable.  In meta-golang I added some patches
>> to the go build tool to prevent this.
>
> Currently, it does not check, and I havent run into problem for my go
> apps feel free to send your enhancements in
> this area, as follow up I will test it out here and include it in
> susequent pulls

OK.  The patch is here, in case you're interested:
https://github.com/madisongh/meta-golang/blob/master/recipes-devtools/golang/golang-1.8/0005-Never-rebuild-already-installed-packages-in-GOROOT.patch

But if this patch is really going in as-is, I can submit it again later.

>
>>
>> > +       fi
>> > +}
>> > +
>> > +do_go_install() {
>> > +       rm -rf ${WORKDIR}/staging
>> > +       install -d ${WORKDIR}/staging${GOROOT_FINAL} ${D}${GOROOT_FINAL}
>> > +       tar -C ${S} -cf - . | tar -C ${WORKDIR}/staging${GOROOT_FINAL} -xpvf -
>> > +
>> > +       find ${WORKDIR}/staging${GOROOT_FINAL} \( \
>> > +               -name \*.indirectionsymlink -o \
>> > +               -name .git\* -o                \
>> > +               -name .hg -o                   \
>> > +               -name .svn -o                  \
>> > +               -name .pc\* -o                 \
>> > +               -name patches\*                \
>> > +               \) -print0 | \
>> > +       xargs -r0 rm -rf
>>
>> Perhaps you could use --exclude-vcs and --exclude=pattern on the tar
>> command to prevent the files from being populated in the first place?
>
> good point. I will do that in a followup.
>
>>
>> > +
>> > +       tar -C ${WORKDIR}/staging${GOROOT_FINAL} -cf - . | \
>> > +       tar -C ${D}${GOROOT_FINAL} -xpvf -
>> > +
>> > +       chown -R root:root "${D}${GOROOT_FINAL}"
>>
>> Use --no-same-owner on the tar command to eliminate the chown.
>
> Right.
>
>> > +
>> > +       if test -e "${D}${GOBIN_FINAL}" ; then
>> > +               install -d -m 0755 "${D}${bindir}"
>> > +               find "${D}${GOBIN_FINAL}" ! -type d -print0 | xargs -r0 mv --target-directory="${D}${bindir}"
>> > +               rmdir -p "${D}${GOBIN_FINAL}" || true
>> > +       fi
>> > +}
>> > +
>> > +do_compile() {
>> > +       do_go_compile
>> > +}
>> > +
>> > +do_install() {
>> > +       do_go_install
>> > +}
>>
>> This is a bbclass, so these two functions should not be here, and the
>> ones above should be named 'go_do_XXX' instead of 'do_go_XXX'.  Then
>> add an EXPORT_FUNCTIONS line to export them.
>>
>
> Seems sensible to do as well.
>
>>
>> > diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
>> > new file mode 100644
>> > index 0000000..119703c
>> > --- /dev/null
>> > +++ b/meta/classes/goarch.bbclass
>> > @@ -0,0 +1,46 @@
>> > +BUILD_GOOS = "${@go_map_os(d.getVar('BUILD_OS', True), d)}"
>> > +BUILD_GOARCH = "${@go_map_arch(d.getVar('BUILD_ARCH', True), d)}"
>> > +BUILD_GOTUPLE = "${BUILD_GOOS}_${BUILD_GOARCH}"
>> > +HOST_GOOS = "${@go_map_os(d.getVar('HOST_OS', True), d)}"
>> > +HOST_GOARCH = "${@go_map_arch(d.getVar('HOST_ARCH', True), d)}"
>> > +HOST_GOARM = "${@go_map_arm(d.getVar('HOST_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
>> > +HOST_GOTUPLE = "${HOST_GOOS}_${HOST_GOARCH}"
>> > +TARGET_GOOS = "${@go_map_os(d.getVar('TARGET_OS', True), d)}"
>> > +TARGET_GOARCH = "${@go_map_arch(d.getVar('TARGET_ARCH', True), d)}"
>> > +TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
>> > +TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
>> > +GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE',True) == d.getVar('HOST_GOTUPLE',True)]}"
>> > +
>> > +def go_map_arch(a, d):
>> > +    import re
>> > +    if re.match('i.86', a):
>> > +        return '386'
>> > +    elif a == 'x86_64':
>> > +        return 'amd64'
>> > +    elif re.match('arm.*', a):
>> > +        return 'arm'
>> > +    elif re.match('aarch64.*', a):
>> > +        return 'arm64'
>> > +    elif re.match('mips64el*', a):
>> > +        return 'mips64le'
>> > +    elif re.match('mips64*', a):
>> > +        return 'mips64'
>> > +    elif re.match('p(pc|owerpc)(64)', a):
>> > +        return 'ppc64'
>> > +    elif re.match('p(pc|owerpc)(64el)', a):
>> > +        return 'ppc64le'
>> > +    else:
>> > +        raise bb.parse.SkipPackage("Unsupported CPU architecture: %s" % a)
>> > +
>> > +def go_map_arm(a, f, d):
>> > +    import re
>> > +    if re.match('arm.*', a) and re.match('arm.*7.*', f):
>> > +        return '7'
>> > +    return ''
>> > +
>> > +def go_map_os(o, d):
>> > +    if o.startswith('linux'):
>> > +        return 'linux'
>> > +    return o
>> > +
>> > +
>>
>>
>> For the following go-1.4 recipes:
>>
>> I wouldn't recommend fixing go-native at version 1.4, which is now
>> postiviely ancient.
>> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it
>> in the right place so
>> that make.bash finds it.  This way, you can have all the go toolchain
>> recipes build at the
>> same version.  The go team only supports go1.4 for bootstrapping the
>> compiler build now
>> anyway, IIRC.
>
> since we do not use go-native for anything other than bootstrapping
> right now, thats why it is there. there is no intent of providing a
> go-native version for general consumption

That could be a problem for folks needing to build packages that need
the native-side go compiler.  Anything that uses protobufs, for
instance, and that's used in at least one of the golang.org/x
packages, which are pretty commonly used.

>
>>
>> > diff --git a/meta/recipes-devtools/go/go-1.4.inc b/meta/recipes-devtools/go/go-1.4.inc
>> > new file mode 100644
>> > index 0000000..2f500f3
>> > --- /dev/null
>> > +++ b/meta/recipes-devtools/go/go-1.4.inc
>> > @@ -0,0 +1,16 @@
>> > +require go-common.inc
>> > +
>> > +PV = "1.4.3"
>> > +GO_BASEVERSION = "1.4"
>> > +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
>> > +
>> > +SRC_URI += "\
>> > +        file://016-armhf-elf-header.patch \
>> > +        file://go-cross-backport-cmd-link-support-new-386-amd64-rel.patch \
>> > +        file://syslog.patch \
>> > +        file://0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch \
>> > +"
>> > diff --git a/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
>> > new file mode 100644
>> > index 0000000..afbae02
>> > --- /dev/null
>> > +++ b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
>> > @@ -0,0 +1,63 @@
>> > +Add new option --target-only to build target components
>> > +Separates the host and target pieces of build
>> > +
>> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
>> > +Upstream-Status: Pending
>> > +Index: go/src/make.bash
>> > +===================================================================
>> > +--- go.orig/src/make.bash
>> > ++++ go/src/make.bash
>> > +@@ -143,12 +143,23 @@ if [ "$1" = "--no-clean" ]; then
>> > +       buildall=""
>> > +       shift
>> > + fi
>> > +-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
>> > +-# Delay move of dist tool to now, because bootstrap may clear tool directory.
>> > +-mv cmd/dist/dist "$GOTOOLDIR"/dist
>> > +-echo
>> > +
>> > +-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
>> > ++do_host_build="yes"
>> > ++do_target_build="yes"
>> > ++if [ "$1" = "--target-only" ]; then
>> > ++      do_host_build="no"
>> > ++      shift
>> > ++elif [ "$1" = "--host-only" ]; then
>> > ++      do_target_build="no"
>> > ++      shift
>> > ++fi
>> > ++
>> > ++if [ "$do_host_build" = "yes" ]; then
>> > ++      ./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
>> > ++      # Delay move of dist tool to now, because bootstrap may clear tool directory.
>> > ++      mv cmd/dist/dist "$GOTOOLDIR"/dist
>> > ++      echo
>> > ++
>> > +       echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
>> > +       # CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
>> > +       # use the host compiler, CC, from `cmd/dist/dist env` instead.
>> > +@@ -157,11 +168,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
>> > +       echo
>> > + fi
>> > +
>> > +-echo "##### Building packages and commands for $GOOS/$GOARCH."
>> > +-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
>> > +-echo
>> > ++if [ "$do_target_build" = "yes" ]; then
>> > ++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
>> > ++    echo "##### Building packages and commands for $GOOS/$GOARCH."
>> > ++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
>> > ++      rm -rf ./host-tools
>> > ++      mkdir ./host-tools
>> > ++      mv "$GOTOOLDIR"/* ./host-tools
>> > ++      GOTOOLDIR="$PWD/host-tools"
>> > ++    fi
>> > ++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
>> > ++    echo
>> > +
>> > +-rm -f "$GOTOOLDIR"/go_bootstrap
>> > ++    rm -f "$GOTOOLDIR"/go_bootstrap
>> > ++fi
>> > +
>> > + if [ "$1" != "--no-banner" ]; then
>> > +       "$GOTOOLDIR"/dist banner
>> > diff --git a/meta/recipes-devtools/go/go-1.6/syslog.patch b/meta/recipes-devtools/go/go-1.6/syslog.patch
>> > new file mode 100644
>> > index 0000000..29be06f
>> > --- /dev/null
>> > +++ b/meta/recipes-devtools/go/go-1.6/syslog.patch
>> > @@ -0,0 +1,62 @@
>> > +Add timeouts to logger
>>
>>
>> This patch was something that I brought into my go recipes a while back,
>> but probably isn't upstreamable and isn't generally needed any more.
>
> I think we should get rid of 1.6 completely, I did run into issues
> compiling host target seprately and this patch helped. we should test go
> 1.8 e.g. if its not needed anymore

Sorry, I was referring to the syslog patch here, not the host/target
separation patch.  Removing it shouldn't have any effect on building
the toolchain.

>
>>
>> > +
>> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
>> > +Upstream-Status: Pending
>> > +
>> > +diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
>> > +--- go/src/log/syslog/syslog.go        2013-11-28 13:38:28.000000000 -0800
>> > ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go    2014-10-03 11:44:37.710403200 -0700
>> > +@@ -33,6 +33,9 @@
>> > + const severityMask = 0x07
>> > + const facilityMask = 0xf8
>> > +
>> > ++var writeTimeout = 1 * time.Second
>> > ++var connectTimeout = 1 * time.Second
>> > ++
>> > + const (
>> > +       // Severity.
>> > +
>> > +@@ -100,6 +103,7 @@
>> > + type serverConn interface {
>> > +       writeString(p Priority, hostname, tag, s, nl string) error
>> > +       close() error
>> > ++      setWriteDeadline(t time.Time) error
>> > + }
>> > +
>> > + type netConn struct {
>> > +@@ -273,7 +277,11 @@
>> > +               nl = "\n"
>> > +       }
>> > +
>> > +-      err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
>> > ++      err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
>> > ++      if err != nil {
>> > ++              return 0, err
>> > ++      }
>> > ++      err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
>> > +       if err != nil {
>> > +               return 0, err
>> > +       }
>> > +@@ -305,6 +313,10 @@
>> > +       return n.conn.Close()
>> > + }
>> > +
>> > ++func (n *netConn) setWriteDeadline(t time.Time) error {
>> > ++      return n.conn.SetWriteDeadline(t)
>> > ++}
>> > ++
>> > + // NewLogger creates a log.Logger whose output is written to
>> > + // the system log service with the specified priority. The logFlag
>> > + // argument is the flag set passed through to log.New to create
>> > +diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
>> > +--- go/src/log/syslog/syslog_unix.go   2013-11-28 13:38:28.000000000 -0800
>> > ++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go       2014-10-03 11:44:39.010403175 -0700
>> > +@@ -19,7 +19,7 @@
>> > +       logPaths := []string{"/dev/log", "/var/run/syslog"}
>> > +       for _, network := range logTypes {
>> > +               for _, path := range logPaths {
>> > +-                      conn, err := net.Dial(network, path)
>> > ++                      conn, err := net.DialTimeout(network, path, connectTimeout)
>> > +                       if err != nil {
>> > +                               continue
>> > +                       } else {
>> > diff --git a/meta/recipes-devtools/go/go-1.7.inc b/meta/recipes-devtools/go/go-1.7.inc
>> > new file mode 100644
>> > index 0000000..5c3004e
>> > --- /dev/null
>> > +++ b/meta/recipes-devtools/go/go-1.7.inc
>> > @@ -0,0 +1,19 @@
>> > +require go-common.inc
>> > +
>> > +PV = "1.7.4"
>> > +GO_BASEVERSION = "1.7"
>> > +FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
>> > +
>> > +LIC_FILES_CHKSUM = "file://LICENSE;md5=5d4950ecb7b26d2c5e4e7b4e0dd74707"
>> > +
>> > +SRC_URI += "\
>> > +       file://armhf-elf-header.patch \
>> > +       file://syslog.patch \
>> > +       file://fix-target-cc-for-build.patch \
>> > +       file://fix-cc-handling.patch \
>> > +       file://split-host-and-target-build.patch \
>> > +       file://gotooldir.patch \
>> > +"
>> > +SRC_URI[md5sum] = "49c1076428a5d3b5ad7ac65233fcca2f"
>> > +SRC_URI[sha256sum] = "4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc"
>> > +
>> > diff --git a/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
>> > new file mode 100644
>> > index 0000000..1e3a16b
>> > --- /dev/null
>> > +++ b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
>> > @@ -0,0 +1,23 @@
>> > +Encode arm EABI ( hard/soft ) calling convention in ELF header
>>
>> This patch shouldn't be needed, at least for go1.7 and later, possibly
>> even go1.6.  It's an artifact
>> leftover from the old C implementation of the compiler.
>
> if you can point out where it was fixed in go compiler, it would help in
> assessing usablity of this

Thinking back on it, I should revisit this. If a build uses go's
built-in linker rather than the external linker, the patch is still
needed.

>
>>
>> > +
>> > +Signed-off-by: Khem Raj <raj.khem@gmail.com>
>> > +Upstream-Status: Pending
>> > +Index: go/src/cmd/link/internal/ld/elf.go
>> > +===================================================================
>> > +--- go.orig/src/cmd/link/internal/ld/elf.go
>> > ++++ go/src/cmd/link/internal/ld/elf.go
>> > +@@ -827,7 +827,13 @@
>> > +       // 32-bit architectures
>> > +       case '5':
>> > +               // we use EABI on both linux/arm and freebsd/arm.
>> > +-              if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
>> > ++              if HEADTYPE == obj.Hlinux {
>> > ++                      if Ctxt.Goarm == 7 {
>> > ++                              ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
>> > ++                      } else {
>> > ++                              ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
>> > ++                      }
>> > ++              } else if HEADTYPE == obj.Hfreebsd {
>> > +                       // We set a value here that makes no indication of which
>> > +                       // float ABI the object uses, because this is information
>> > +                       // used by the dynamic linker to compare executables and
>> > --- /dev/null
>> > +++ b/meta/recipes-extended/go-examples/files/helloworld.go
>> > @@ -0,0 +1,10 @@
>> > +// You can edit this code!
>> > +// Click here and start typing.
>> > +// taken from https://golang.org/
>> > +package main
>> > +
>> > +import "fmt"
>> > +
>> > +func main() {
>> > +       fmt.Println("Hello, 世界")
>> > +}
>> > diff --git a/meta/recipes-extended/go-examples/go-examples.inc b/meta/recipes-extended/go-examples/go-examples.inc
>> > new file mode 100644
>> > index 0000000..c632681
>> > --- /dev/null
>> > +++ b/meta/recipes-extended/go-examples/go-examples.inc
>>
>> Does go-examples belong under meta/recipes-extended?  Maybe move it
>> under meta-skeleton/recipes-skeleton?
>>
>
> We want to run it as a unit test, I am not sure if we include
> meta-skeleton in our regular layer mix

I see.

Thanks,
-Matt

>
>> > @@ -0,0 +1,10 @@
>> > +DESCRIPTION = "This is a simple example recipe that cross-compiles a Go program."
>> > +SECTION = "examples"
>> > +HOMEPAGE = "https://golang.org/"
>> > +
>> > +LICENSE = "MIT"
>> > +LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
>> > +
>> > +S = "${WORKDIR}"
>> > +
>> > +inherit go
>> > diff --git a/meta/recipes-extended/go-examples/go-helloworld_0.1.bb b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
>> > new file mode 100644
>> > index 0000000..930c57d
>> > --- /dev/null
>> > +++ b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
>> > @@ -0,0 +1,13 @@
>> > +require go-examples.inc
>> > +
>> > +SRC_URI += " \
>> > +  file://helloworld.go \
>> > +"
>> > +
>> > +do_compile() {
>> > +       go build helloworld.go
>> > +}
>> > +
>> > +do_install() {
>> > +       install -D -m 0755 ${S}/helloworld ${D}${bindir}/helloworld
>> > +}
>> > --
>> > 2.10.2
>> >
>> > --
>> > _______________________________________________
>> > Openembedded-core mailing list
>> > Openembedded-core@lists.openembedded.org
>> > http://lists.openembedded.org/mailman/listinfo/openembedded-core
Matt Madison March 9, 2017, 1:19 p.m. | #8
On Wed, Mar 8, 2017 at 11:03 PM, Kristian Amlie
<kristian.amlie@mender.io> wrote:
> On 08/03/17 23:19, Khem Raj wrote:

>>> ...

>>> For the following go-1.4 recipes:

>>>

>>> I wouldn't recommend fixing go-native at version 1.4, which is now

>>> postiviely ancient.

>>> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it

>>> in the right place so

>>> that make.bash finds it.  This way, you can have all the go toolchain

>>> recipes build at the

>>> same version.  The go team only supports go1.4 for bootstrapping the

>>> compiler build now

>>> anyway, IIRC.

>>

>> since we do not use go-native for anything other than bootstrapping

>> right now, thats why it is there. there is no intent of providing a

>> go-native version for general consumption

>

> Just FYI, in Mender we use the latest go-native, provided by

> github.com/mem/oe-meta-go, to compile some build tools. The layer has a

> separate go-bootstrap recipe, which is locked to 1.4, for the purpose of

> creating go-native and go-cross.


Yep, that's another way to handle it.  I just found go's built-in
bootstrap mechanism a bit cleaner.

-Matt

>

> --

> Kristian

-- 
_______________________________________________
Openembedded-core mailing list
Openembedded-core@lists.openembedded.org
http://lists.openembedded.org/mailman/listinfo/openembedded-core
Kristian Amlie March 13, 2017, 1:36 p.m. | #9
On 09/03/17 08:27, Khem Raj wrote:
> On Wed, Mar 8, 2017 at 11:03 PM, Kristian Amlie

> <kristian.amlie@mender.io> wrote:

>> On 08/03/17 23:19, Khem Raj wrote:

>>>> ...

>>>> For the following go-1.4 recipes:

>>>>

>>>> I wouldn't recommend fixing go-native at version 1.4, which is now

>>>> postiviely ancient.

>>>> Instead, add go1.4.3's SRC_URI into the go-native recipe, loading it

>>>> in the right place so

>>>> that make.bash finds it.  This way, you can have all the go toolchain

>>>> recipes build at the

>>>> same version.  The go team only supports go1.4 for bootstrapping the

>>>> compiler build now

>>>> anyway, IIRC.

>>>

>>> since we do not use go-native for anything other than bootstrapping

>>> right now, thats why it is there. there is no intent of providing a

>>> go-native version for general consumption

>>

>> Just FYI, in Mender we use the latest go-native, provided by

>> github.com/mem/oe-meta-go, to compile some build tools. The layer has a

>> separate go-bootstrap recipe, which is locked to 1.4, for the purpose of

>> creating go-native and go-cross.

> 

> Thanks for info. we should add it here as well.


What work is going on in this regard right now? We will need this fixed
rather soon, since currently it conflicts with the existing, external layer.

I could take a look at this myself, but I'm no Go toolchain expert, more
on the consumption side, so my solution may not be the optimal one.

-- 
Kristian
-- 
_______________________________________________
Openembedded-core mailing list
Openembedded-core@lists.openembedded.org
http://lists.openembedded.org/mailman/listinfo/openembedded-core

Patch

diff --git a/meta/classes/go.bbclass b/meta/classes/go.bbclass
new file mode 100644
index 0000000..e6ea996
--- /dev/null
+++ b/meta/classes/go.bbclass
@@ -0,0 +1,72 @@ 
+inherit goarch
+
+GOROOT_class-native = "${STAGING_LIBDIR_NATIVE}/go"
+GOROOT = "${STAGING_LIBDIR_NATIVE}/${TARGET_SYS}/go"
+GOBIN_FINAL_class-native = "${GOROOT_FINAL}/bin"
+GOBIN_FINAL = "${GOROOT_FINAL}/bin/${GOOS}_${GOARCH}"
+
+export GOOS = "${TARGET_GOOS}"
+export GOARCH = "${TARGET_GOARCH}"
+export GOARM = "${TARGET_GOARM}"
+export CGO_ENABLED = "1"
+export GOROOT
+export GOROOT_FINAL = "${libdir}/${TARGET_SYS}/go"
+export GOBIN_FINAL
+export GOPKG_FINAL = "${GOROOT_FINAL}/pkg/${GOOS}_${GOARCH}"
+export GOSRC_FINAL = "${GOROOT_FINAL}/src"
+export GO_GCFLAGS = "${TARGET_CFLAGS}"
+export GO_LDFLAGS = "${TARGET_LDFLAGS}"
+export CGO_CFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CFLAGS}"
+export CGO_CPPFLAGS = "${TARGET_CPPFLAGS}"
+export CGO_CXXFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_CXXFLAGS}"
+export CGO_LDFLAGS = "${TARGET_CC_ARCH}${TOOLCHAIN_OPTIONS} ${TARGET_LDFLAGS}"
+
+DEPENDS += "go-cross-${TARGET_ARCH}"
+DEPENDS_class-native += "go-native"
+
+FILES_${PN}-staticdev += "${GOSRC_FINAL}/${GO_IMPORT}"
+FILES_${PN}-staticdev += "${GOPKG_FINAL}/${GO_IMPORT}*"
+
+GO_INSTALL ?= "${GO_IMPORT}/..."
+
+do_go_compile() {
+	GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go env
+	if test -n "${GO_INSTALL}" ; then
+		GOPATH=${S}:${STAGING_LIBDIR}/${TARGET_SYS}/go go install -v ${GO_INSTALL}
+	fi
+}
+
+do_go_install() {
+	rm -rf ${WORKDIR}/staging
+	install -d ${WORKDIR}/staging${GOROOT_FINAL} ${D}${GOROOT_FINAL}
+	tar -C ${S} -cf - . | tar -C ${WORKDIR}/staging${GOROOT_FINAL} -xpvf -
+
+	find ${WORKDIR}/staging${GOROOT_FINAL} \( \
+		-name \*.indirectionsymlink -o \
+		-name .git\* -o                \
+		-name .hg -o                   \
+		-name .svn -o                  \
+		-name .pc\* -o                 \
+		-name patches\*                \
+		\) -print0 | \
+	xargs -r0 rm -rf
+
+	tar -C ${WORKDIR}/staging${GOROOT_FINAL} -cf - . | \
+	tar -C ${D}${GOROOT_FINAL} -xpvf -
+
+	chown -R root:root "${D}${GOROOT_FINAL}"
+
+	if test -e "${D}${GOBIN_FINAL}" ; then
+		install -d -m 0755 "${D}${bindir}"
+		find "${D}${GOBIN_FINAL}" ! -type d -print0 | xargs -r0 mv --target-directory="${D}${bindir}"
+		rmdir -p "${D}${GOBIN_FINAL}" || true
+	fi
+}
+
+do_compile() {
+	do_go_compile
+}
+
+do_install() {
+	do_go_install
+}
diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
new file mode 100644
index 0000000..119703c
--- /dev/null
+++ b/meta/classes/goarch.bbclass
@@ -0,0 +1,46 @@ 
+BUILD_GOOS = "${@go_map_os(d.getVar('BUILD_OS', True), d)}"
+BUILD_GOARCH = "${@go_map_arch(d.getVar('BUILD_ARCH', True), d)}"
+BUILD_GOTUPLE = "${BUILD_GOOS}_${BUILD_GOARCH}"
+HOST_GOOS = "${@go_map_os(d.getVar('HOST_OS', True), d)}"
+HOST_GOARCH = "${@go_map_arch(d.getVar('HOST_ARCH', True), d)}"
+HOST_GOARM = "${@go_map_arm(d.getVar('HOST_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
+HOST_GOTUPLE = "${HOST_GOOS}_${HOST_GOARCH}"
+TARGET_GOOS = "${@go_map_os(d.getVar('TARGET_OS', True), d)}"
+TARGET_GOARCH = "${@go_map_arch(d.getVar('TARGET_ARCH', True), d)}"
+TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH', True), d.getVar('TUNE_FEATURES', True), d)}"
+TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
+GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE',True) == d.getVar('HOST_GOTUPLE',True)]}"
+
+def go_map_arch(a, d):
+    import re
+    if re.match('i.86', a):
+        return '386'
+    elif a == 'x86_64':
+        return 'amd64'
+    elif re.match('arm.*', a):
+        return 'arm'
+    elif re.match('aarch64.*', a):
+        return 'arm64'
+    elif re.match('mips64el*', a):
+        return 'mips64le'
+    elif re.match('mips64*', a):
+        return 'mips64'
+    elif re.match('p(pc|owerpc)(64)', a):
+        return 'ppc64'
+    elif re.match('p(pc|owerpc)(64el)', a):
+        return 'ppc64le'
+    else:
+        raise bb.parse.SkipPackage("Unsupported CPU architecture: %s" % a)
+
+def go_map_arm(a, f, d):
+    import re
+    if re.match('arm.*', a) and re.match('arm.*7.*', f):
+        return '7'
+    return ''
+
+def go_map_os(o, d):
+    if o.startswith('linux'):
+        return 'linux'
+    return o
+
+
diff --git a/meta/recipes-devtools/go/go-1.4.inc b/meta/recipes-devtools/go/go-1.4.inc
new file mode 100644
index 0000000..2f500f3
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.4.inc
@@ -0,0 +1,16 @@ 
+require go-common.inc
+
+PV = "1.4.3"
+GO_BASEVERSION = "1.4"
+FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
+
+SRC_URI += "\
+        file://016-armhf-elf-header.patch \
+        file://go-cross-backport-cmd-link-support-new-386-amd64-rel.patch \
+        file://syslog.patch \
+        file://0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch \
+"
+
+LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
+SRC_URI[md5sum] = "dfb604511115dd402a77a553a5923a04"
+SRC_URI[sha256sum] = "9947fc705b0b841b5938c48b22dc33e9647ec0752bae66e50278df4f23f64959"
diff --git a/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
new file mode 100644
index 0000000..4cfa9d1
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.4/0001-cmd-ld-set-alignment-for-the-.rel.plt-section-on-32-.patch
@@ -0,0 +1,30 @@ 
+From 855145d5c03c4b4faf60736c38d7a299c682af4a Mon Sep 17 00:00:00 2001
+From: Shenghou Ma <minux@golang.org>
+Date: Sat, 7 Feb 2015 14:06:02 -0500
+Subject: [PATCH] cmd/ld: set alignment for the .rel.plt section on 32-bit
+ architectures
+
+Fixes #9802.
+
+Change-Id: I22c52a37bdb23a14cc4615c9519431bb14ca81ca
+Reviewed-on: https://go-review.googlesource.com/4170
+Reviewed-by: Ian Lance Taylor <iant@golang.org>
+---
+ src/cmd/ld/elf.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/cmd/ld/elf.c b/src/cmd/ld/elf.c
+index 12ced98..97ed4bd 100644
+--- a/src/cmd/ld/elf.c
++++ b/src/cmd/ld/elf.c
+@@ -1363,6 +1363,7 @@ asmbelf(vlong symo)
+ 			sh->type = SHT_REL;
+ 			sh->flags = SHF_ALLOC;
+ 			sh->entsize = ELF32RELSIZE;
++			sh->addralign = 4;
+ 			sh->link = elfshname(".dynsym")->shnum;
+ 			shsym(sh, linklookup(ctxt, ".rel.plt", 0));
+ 
+-- 
+1.9.1
+
diff --git a/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
new file mode 100644
index 0000000..e6e414e
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.4/016-armhf-elf-header.patch
@@ -0,0 +1,24 @@ 
+Description: Use correct ELF header for armhf binaries.
+Author: Adam Conrad <adconrad@ubuntu.com>
+Last-Update: 2013-07-08
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Index: go/src/cmd/ld/elf.c
+===================================================================
+--- go.orig/src/cmd/ld/elf.c	2015-02-20 10:49:58.763451586 -0800
++++ go/src/cmd/ld/elf.c	2015-02-20 10:49:27.895478521 -0800
+@@ -57,7 +57,11 @@
+ 	case '5':
+ 		// we use EABI on both linux/arm and freebsd/arm.
+ 		if(HEADTYPE == Hlinux || HEADTYPE == Hfreebsd)
+-			hdr.flags = 0x5000002; // has entry point, Version5 EABI
++#ifdef __ARM_PCS_VFP
++			hdr.flags = 0x5000402; // has entry point, Version5 EABI, hard-float ABI
++#else
++			hdr.flags = 0x5000202; // has entry point, Version5 EABI, soft-float ABI
++#endif
+ 		// fallthrough
+ 	default:
+ 		hdr.phoff = ELF32HDRSIZE;	/* Must be be ELF32HDRSIZE: first PHdr must follow ELF header */
diff --git a/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
new file mode 100644
index 0000000..95ca9d3
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.4/go-cross-backport-cmd-link-support-new-386-amd64-rel.patch
@@ -0,0 +1,225 @@ 
+From d6eefad445831c161fca130f9bdf7b3848aac23c Mon Sep 17 00:00:00 2001
+From: Paul Gortmaker <paul.gortmaker@windriver.com>
+Date: Tue, 29 Mar 2016 21:14:33 -0400
+Subject: [PATCH] go-cross: backport "cmd/link: support new 386/amd64
+ relocations"
+
+Newer binutils won't support building older go-1.4.3 as per:
+
+https://github.com/golang/go/issues/13114
+
+Upstream commit 914db9f060b1fd3eb1f74d48f3bd46a73d4ae9c7 (see subj)
+was identified as the fix and nominated for 1.4.4 but that release
+never happened.  The paths in 1.4.3 aren't the same as go1.6beta1~662
+where this commit appeared, but the NetBSD folks indicated what a
+1.4.3 backport would look like here: https://gnats.netbsd.org/50777
+
+This is based on that, but without the BSD wrapper infrastructure
+layer that makes things look like patches of patches.
+
+Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
+
+Upstream-Status: Backport [ Partial ]
+
+diff --git a/src/cmd/6l/asm.c b/src/cmd/6l/asm.c
+index 18b5aa311981..2e9d339aef87 100644
+--- a/src/cmd/6l/asm.c
++++ b/src/cmd/6l/asm.c
+@@ -118,6 +118,8 @@ adddynrel(LSym *s, Reloc *r)
+ 		return;
+ 	
+ 	case 256 + R_X86_64_GOTPCREL:
++	case 256 + R_X86_64_GOTPCRELX:
++	case 256 + R_X86_64_REX_GOTPCRELX:
+ 		if(targ->type != SDYNIMPORT) {
+ 			// have symbol
+ 			if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
+diff --git a/src/cmd/8l/asm.c b/src/cmd/8l/asm.c
+index 98c04240374f..cff29488e8af 100644
+--- a/src/cmd/8l/asm.c
++++ b/src/cmd/8l/asm.c
+@@ -115,6 +115,7 @@ adddynrel(LSym *s, Reloc *r)
+ 		return;		
+ 	
+ 	case 256 + R_386_GOT32:
++	case 256 + R_386_GOT32X:
+ 		if(targ->type != SDYNIMPORT) {
+ 			// have symbol
+ 			if(r->off >= 2 && s->p[r->off-2] == 0x8b) {
+diff --git a/src/cmd/ld/elf.h b/src/cmd/ld/elf.h
+index e84d996f2596..bbf2cfaa3cc0 100644
+--- a/src/cmd/ld/elf.h
++++ b/src/cmd/ld/elf.h
+@@ -478,32 +478,47 @@ typedef struct {
+  * Relocation types.
+  */
+ 
+-#define	R_X86_64_NONE	0	/* No relocation. */
+-#define	R_X86_64_64	1	/* Add 64 bit symbol value. */
+-#define	R_X86_64_PC32	2	/* PC-relative 32 bit signed sym value. */
+-#define	R_X86_64_GOT32	3	/* PC-relative 32 bit GOT offset. */
+-#define	R_X86_64_PLT32	4	/* PC-relative 32 bit PLT offset. */
+-#define	R_X86_64_COPY	5	/* Copy data from shared object. */
+-#define	R_X86_64_GLOB_DAT 6	/* Set GOT entry to data address. */
+-#define	R_X86_64_JMP_SLOT 7	/* Set GOT entry to code address. */
+-#define	R_X86_64_RELATIVE 8	/* Add load address of shared object. */
+-#define	R_X86_64_GOTPCREL 9	/* Add 32 bit signed pcrel offset to GOT. */
+-#define	R_X86_64_32	10	/* Add 32 bit zero extended symbol value */
+-#define	R_X86_64_32S	11	/* Add 32 bit sign extended symbol value */
+-#define	R_X86_64_16	12	/* Add 16 bit zero extended symbol value */
+-#define	R_X86_64_PC16	13	/* Add 16 bit signed extended pc relative symbol value */
+-#define	R_X86_64_8	14	/* Add 8 bit zero extended symbol value */
+-#define	R_X86_64_PC8	15	/* Add 8 bit signed extended pc relative symbol value */
+-#define	R_X86_64_DTPMOD64 16	/* ID of module containing symbol */
+-#define	R_X86_64_DTPOFF64 17	/* Offset in TLS block */
+-#define	R_X86_64_TPOFF64 18	/* Offset in static TLS block */
+-#define	R_X86_64_TLSGD	19	/* PC relative offset to GD GOT entry */
+-#define	R_X86_64_TLSLD	20	/* PC relative offset to LD GOT entry */
+-#define	R_X86_64_DTPOFF32 21	/* Offset in TLS block */
+-#define	R_X86_64_GOTTPOFF 22	/* PC relative offset to IE GOT entry */
+-#define	R_X86_64_TPOFF32 23	/* Offset in static TLS block */
+-
+-#define	R_X86_64_COUNT	24	/* Count of defined relocation types. */
++#define	R_X86_64_NONE           0
++#define	R_X86_64_64             1
++#define	R_X86_64_PC32           2
++#define	R_X86_64_GOT32          3
++#define	R_X86_64_PLT32          4
++#define	R_X86_64_COPY           5
++#define	R_X86_64_GLOB_DAT       6
++#define	R_X86_64_JMP_SLOT       7
++#define	R_X86_64_RELATIVE       8
++#define	R_X86_64_GOTPCREL       9
++#define	R_X86_64_32             10
++#define	R_X86_64_32S            11
++#define	R_X86_64_16             12
++#define	R_X86_64_PC16           13
++#define	R_X86_64_8              14
++#define	R_X86_64_PC8            15
++#define	R_X86_64_DTPMOD64       16
++#define	R_X86_64_DTPOFF64       17
++#define	R_X86_64_TPOFF64        18
++#define	R_X86_64_TLSGD          19
++#define	R_X86_64_TLSLD          20
++#define	R_X86_64_DTPOFF32       21
++#define	R_X86_64_GOTTPOFF       22
++#define	R_X86_64_TPOFF32        23
++#define	R_X86_64_PC64           24
++#define	R_X86_64_GOTOFF64       25
++#define	R_X86_64_GOTPC32        26
++#define	R_X86_64_GOT64          27
++#define	R_X86_64_GOTPCREL64     28
++#define	R_X86_64_GOTPC64        29
++#define	R_X86_64_GOTPLT64       30
++#define	R_X86_64_PLTOFF64       31
++#define	R_X86_64_SIZE32         32
++#define	R_X86_64_SIZE64         33
++#define	R_X86_64_GOTPC32_TLSDEC 34
++#define	R_X86_64_TLSDESC_CALL   35
++#define	R_X86_64_TLSDESC        36
++#define	R_X86_64_IRELATIVE      37
++#define	R_X86_64_PC32_BND       40
++#define	R_X86_64_GOTPCRELX      41
++#define	R_X86_64_REX_GOTPCRELX  42
+ 
+ 
+ #define	R_ALPHA_NONE		0	/* No reloc */
+@@ -581,39 +596,42 @@ typedef struct {
+ #define	R_ARM_COUNT		38	/* Count of defined relocation types. */
+ 
+ 
+-#define	R_386_NONE	0	/* No relocation. */
+-#define	R_386_32	1	/* Add symbol value. */
+-#define	R_386_PC32	2	/* Add PC-relative symbol value. */
+-#define	R_386_GOT32	3	/* Add PC-relative GOT offset. */
+-#define	R_386_PLT32	4	/* Add PC-relative PLT offset. */
+-#define	R_386_COPY	5	/* Copy data from shared object. */
+-#define	R_386_GLOB_DAT	6	/* Set GOT entry to data address. */
+-#define	R_386_JMP_SLOT	7	/* Set GOT entry to code address. */
+-#define	R_386_RELATIVE	8	/* Add load address of shared object. */
+-#define	R_386_GOTOFF	9	/* Add GOT-relative symbol address. */
+-#define	R_386_GOTPC	10	/* Add PC-relative GOT table address. */
+-#define	R_386_TLS_TPOFF	14	/* Negative offset in static TLS block */
+-#define	R_386_TLS_IE	15	/* Absolute address of GOT for -ve static TLS */
+-#define	R_386_TLS_GOTIE	16	/* GOT entry for negative static TLS block */
+-#define	R_386_TLS_LE	17	/* Negative offset relative to static TLS */
+-#define	R_386_TLS_GD	18	/* 32 bit offset to GOT (index,off) pair */
+-#define	R_386_TLS_LDM	19	/* 32 bit offset to GOT (index,zero) pair */
+-#define	R_386_TLS_GD_32	24	/* 32 bit offset to GOT (index,off) pair */
+-#define	R_386_TLS_GD_PUSH 25	/* pushl instruction for Sun ABI GD sequence */
+-#define	R_386_TLS_GD_CALL 26	/* call instruction for Sun ABI GD sequence */
+-#define	R_386_TLS_GD_POP 27	/* popl instruction for Sun ABI GD sequence */
+-#define	R_386_TLS_LDM_32 28	/* 32 bit offset to GOT (index,zero) pair */
+-#define	R_386_TLS_LDM_PUSH 29	/* pushl instruction for Sun ABI LD sequence */
+-#define	R_386_TLS_LDM_CALL 30	/* call instruction for Sun ABI LD sequence */
+-#define	R_386_TLS_LDM_POP 31	/* popl instruction for Sun ABI LD sequence */
+-#define	R_386_TLS_LDO_32 32	/* 32 bit offset from start of TLS block */
+-#define	R_386_TLS_IE_32	33	/* 32 bit offset to GOT static TLS offset entry */
+-#define	R_386_TLS_LE_32	34	/* 32 bit offset within static TLS block */
+-#define	R_386_TLS_DTPMOD32 35	/* GOT entry containing TLS index */
+-#define	R_386_TLS_DTPOFF32 36	/* GOT entry containing TLS offset */
+-#define	R_386_TLS_TPOFF32 37	/* GOT entry of -ve static TLS offset */
+-
+-#define	R_386_COUNT	38	/* Count of defined relocation types. */
++#define	R_386_NONE          0
++#define	R_386_32            1
++#define	R_386_PC32          2
++#define	R_386_GOT32         3
++#define	R_386_PLT32         4
++#define	R_386_COPY          5
++#define	R_386_GLOB_DAT      6
++#define	R_386_JMP_SLOT      7
++#define	R_386_RELATIVE      8
++#define	R_386_GOTOFF        9
++#define	R_386_GOTPC         10
++#define	R_386_TLS_TPOFF     14
++#define	R_386_TLS_IE        15
++#define	R_386_TLS_GOTIE     16
++#define	R_386_TLS_LE        17
++#define	R_386_TLS_GD        18
++#define	R_386_TLS_LDM       19
++#define	R_386_TLS_GD_32     24
++#define	R_386_TLS_GD_PUSH   25
++#define	R_386_TLS_GD_CALL   26
++#define	R_386_TLS_GD_POP    27
++#define	R_386_TLS_LDM_32    28
++#define	R_386_TLS_LDM_PUSH  29
++#define	R_386_TLS_LDM_CALL  30
++#define	R_386_TLS_LDM_POP   31
++#define	R_386_TLS_LDO_32    32
++#define	R_386_TLS_IE_32     33
++#define	R_386_TLS_LE_32     34
++#define	R_386_TLS_DTPMOD32  35
++#define	R_386_TLS_DTPOFF32  36
++#define	R_386_TLS_TPOFF32   37
++#define	R_386_TLS_GOTDESC   39
++#define	R_386_TLS_DESC_CALL 40
++#define	R_386_TLS_DESC      41
++#define	R_386_IRELATIVE     42
++#define	R_386_GOT32X        43
+ 
+ #define	R_PPC_NONE		0	/* No relocation. */
+ #define	R_PPC_ADDR32		1
+diff --git a/src/cmd/ld/ldelf.c b/src/cmd/ld/ldelf.c
+index dd5fa0d2a839..2e2fbd17377f 100644
+--- a/src/cmd/ld/ldelf.c
++++ b/src/cmd/ld/ldelf.c
+@@ -888,12 +888,15 @@ reltype(char *pn, int elftype, uchar *siz)
+ 	case R('6', R_X86_64_PC32):
+ 	case R('6', R_X86_64_PLT32):
+ 	case R('6', R_X86_64_GOTPCREL):
++	case R('6', R_X86_64_GOTPCRELX):
++	case R('6', R_X86_64_REX_GOTPCRELX):
+ 	case R('8', R_386_32):
+ 	case R('8', R_386_PC32):
+ 	case R('8', R_386_GOT32):
+ 	case R('8', R_386_PLT32):
+ 	case R('8', R_386_GOTOFF):
+ 	case R('8', R_386_GOTPC):
++	case R('8', R_386_GOT32X):
+ 		*siz = 4;
+ 		break;
+ 	case R('6', R_X86_64_64):
+-- 
+2.7.2
+
diff --git a/meta/recipes-devtools/go/go-1.4/syslog.patch b/meta/recipes-devtools/go/go-1.4/syslog.patch
new file mode 100644
index 0000000..29be06f
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.4/syslog.patch
@@ -0,0 +1,62 @@ 
+Add timeouts to logger
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+
+diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
+--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
+@@ -33,6 +33,9 @@
+ const severityMask = 0x07
+ const facilityMask = 0xf8
+ 
++var writeTimeout = 1 * time.Second
++var connectTimeout = 1 * time.Second
++
+ const (
+ 	// Severity.
+ 
+@@ -100,6 +103,7 @@
+ type serverConn interface {
+ 	writeString(p Priority, hostname, tag, s, nl string) error
+ 	close() error
++	setWriteDeadline(t time.Time) error
+ }
+ 
+ type netConn struct {
+@@ -273,7 +277,11 @@
+ 		nl = "\n"
+ 	}
+ 
+-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
++	if err != nil {
++		return 0, err
++	}
++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
+ 	if err != nil {
+ 		return 0, err
+ 	}
+@@ -305,6 +313,10 @@
+ 	return n.conn.Close()
+ }
+ 
++func (n *netConn) setWriteDeadline(t time.Time) error {
++	return n.conn.SetWriteDeadline(t)
++}
++
+ // NewLogger creates a log.Logger whose output is written to
+ // the system log service with the specified priority. The logFlag
+ // argument is the flag set passed through to log.New to create
+diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
+--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
+@@ -19,7 +19,7 @@
+ 	logPaths := []string{"/dev/log", "/var/run/syslog"}
+ 	for _, network := range logTypes {
+ 		for _, path := range logPaths {
+-			conn, err := net.Dial(network, path)
++			conn, err := net.DialTimeout(network, path, connectTimeout)
+ 			if err != nil {
+ 				continue
+ 			} else {
diff --git a/meta/recipes-devtools/go/go-1.6.inc b/meta/recipes-devtools/go/go-1.6.inc
new file mode 100644
index 0000000..769c1d8
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6.inc
@@ -0,0 +1,19 @@ 
+require go-common.inc
+
+PV = "1.6.3"
+GO_BASEVERSION = "1.6"
+FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
+
+LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
+
+SRC_URI += "\
+       file://armhf-elf-header.patch \
+       file://syslog.patch \
+       file://fix-target-cc-for-build.patch \
+       file://fix-cc-handling.patch \
+       file://split-host-and-target-build.patch \
+       file://gotooldir.patch \
+"
+SRC_URI[md5sum] = "bf3fce6ccaadd310159c9e874220e2a2"
+SRC_URI[sha256sum] = "6326aeed5f86cf18f16d6dc831405614f855e2d416a91fd3fdc334f772345b00"
+
diff --git a/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
new file mode 100644
index 0000000..1e3a16b
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/armhf-elf-header.patch
@@ -0,0 +1,23 @@ 
+Encode arm EABI ( hard/soft ) calling convention in ELF header
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/cmd/link/internal/ld/elf.go
+===================================================================
+--- go.orig/src/cmd/link/internal/ld/elf.go
++++ go/src/cmd/link/internal/ld/elf.go
+@@ -827,7 +827,13 @@
+ 	// 32-bit architectures
+ 	case '5':
+ 		// we use EABI on both linux/arm and freebsd/arm.
+-		if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
++		if HEADTYPE == obj.Hlinux {
++			if Ctxt.Goarm == 7 {
++				ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
++			} else {
++				ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
++			}
++		} else if HEADTYPE == obj.Hfreebsd {
+ 			// We set a value here that makes no indication of which
+ 			// float ABI the object uses, because this is information
+ 			// used by the dynamic linker to compare executables and
diff --git a/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
new file mode 100644
index 0000000..983323a
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/fix-cc-handling.patch
@@ -0,0 +1,50 @@ 
+Accept CC with multiple words in its name
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/cmd/go/build.go
+===================================================================
+--- go.orig/src/cmd/go/build.go	2015-07-29 14:48:40.323185807 -0700
++++ go/src/cmd/go/build.go	2015-07-30 07:37:40.529818586 -0700
+@@ -2805,12 +2805,24 @@
+ 	return b.ccompilerCmd("CC", defaultCC, objdir)
+ }
+ 
++// gccCmd returns a gcc command line prefix
++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
++func (b *builder) gccCmdForReal() []string {
++	return envList("CC", defaultCC)
++}
++
+ // gxxCmd returns a g++ command line prefix
+ // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
+ func (b *builder) gxxCmd(objdir string) []string {
+ 	return b.ccompilerCmd("CXX", defaultCXX, objdir)
+ }
+ 
++// gxxCmd returns a g++ command line prefix
++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
++func (b *builder) gxxCmdForReal() []string {
++	return envList("CXX", defaultCXX)
++}
++
+ // ccompilerCmd returns a command line prefix for the given environment
+ // variable and using the default command when the variable is empty.
+ func (b *builder) ccompilerCmd(envvar, defcmd, objdir string) []string {
+Index: go/src/cmd/go/env.go
+===================================================================
+--- go.orig/src/cmd/go/env.go	2015-07-29 14:48:40.323185807 -0700
++++ go/src/cmd/go/env.go	2015-07-30 07:40:54.461655721 -0700
+@@ -52,10 +52,9 @@
+ 
+ 	if goos != "plan9" {
+ 		cmd := b.gccCmd(".")
+-		env = append(env, envVar{"CC", cmd[0]})
++		env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
+ 		env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
+-		cmd = b.gxxCmd(".")
+-		env = append(env, envVar{"CXX", cmd[0]})
++		env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
+ 	}
+ 
+ 	if buildContext.CgoEnabled {
diff --git a/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
new file mode 100644
index 0000000..2f6156e
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/fix-target-cc-for-build.patch
@@ -0,0 +1,17 @@ 
+Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/make.bash
+===================================================================
+--- go.orig/src/make.bash	2015-07-29 13:28:11.334031696 -0700
++++ go/src/make.bash	2015-07-29 13:36:55.814465630 -0700
+@@ -158,7 +158,7 @@
+ fi
+ 
+ echo "##### Building packages and commands for $GOOS/$GOARCH."
+-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
+ echo
+ 
+ rm -f "$GOTOOLDIR"/go_bootstrap
diff --git a/meta/recipes-devtools/go/go-1.6/gotooldir.patch b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
new file mode 100644
index 0000000..9467025
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/gotooldir.patch
@@ -0,0 +1,30 @@ 
+Define tooldir in relation to GOTOOLDIR env var
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/go/build/build.go
+===================================================================
+--- go.orig/src/go/build/build.go
++++ go/src/go/build/build.go
+@@ -1388,7 +1388,7 @@ func init() {
+ }
+ 
+ // ToolDir is the directory containing build tools.
+-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
+ 
+ // IsLocalImport reports whether the import path is
+ // a local import path, like ".", "..", "./foo", or "../foo".
+Index: go/src/cmd/go/build.go
+===================================================================
+--- go.orig/src/cmd/go/build.go
++++ go/src/cmd/go/build.go
+@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
+ 		}
+ 
+ 		cgoExe := tool("cgo")
+-		if a.cgo != nil && a.cgo.target != "" {
++		if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
+ 			cgoExe = a.cgo.target
+ 		}
+ 		outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
diff --git a/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
new file mode 100644
index 0000000..afbae02
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/split-host-and-target-build.patch
@@ -0,0 +1,63 @@ 
+Add new option --target-only to build target components
+Separates the host and target pieces of build
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/make.bash
+===================================================================
+--- go.orig/src/make.bash
++++ go/src/make.bash
+@@ -143,12 +143,23 @@ if [ "$1" = "--no-clean" ]; then
+ 	buildall=""
+ 	shift
+ fi
+-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
+-# Delay move of dist tool to now, because bootstrap may clear tool directory.
+-mv cmd/dist/dist "$GOTOOLDIR"/dist
+-echo
+ 
+-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
++do_host_build="yes"
++do_target_build="yes"
++if [ "$1" = "--target-only" ]; then
++	do_host_build="no"
++	shift
++elif [ "$1" = "--host-only" ]; then
++	do_target_build="no"
++	shift
++fi
++
++if [ "$do_host_build" = "yes" ]; then
++	./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
++	# Delay move of dist tool to now, because bootstrap may clear tool directory.
++	mv cmd/dist/dist "$GOTOOLDIR"/dist
++	echo
++
+ 	echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
+ 	# CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
+ 	# use the host compiler, CC, from `cmd/dist/dist env` instead.
+@@ -157,11 +168,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
+ 	echo
+ fi
+ 
+-echo "##### Building packages and commands for $GOOS/$GOARCH."
+-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
+-echo
++if [ "$do_target_build" = "yes" ]; then
++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
++    echo "##### Building packages and commands for $GOOS/$GOARCH."
++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
++	rm -rf ./host-tools
++	mkdir ./host-tools
++	mv "$GOTOOLDIR"/* ./host-tools
++	GOTOOLDIR="$PWD/host-tools"
++    fi
++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
++    echo
+ 
+-rm -f "$GOTOOLDIR"/go_bootstrap
++    rm -f "$GOTOOLDIR"/go_bootstrap
++fi
+ 
+ if [ "$1" != "--no-banner" ]; then
+ 	"$GOTOOLDIR"/dist banner
diff --git a/meta/recipes-devtools/go/go-1.6/syslog.patch b/meta/recipes-devtools/go/go-1.6/syslog.patch
new file mode 100644
index 0000000..29be06f
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.6/syslog.patch
@@ -0,0 +1,62 @@ 
+Add timeouts to logger
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+
+diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
+--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
+@@ -33,6 +33,9 @@
+ const severityMask = 0x07
+ const facilityMask = 0xf8
+ 
++var writeTimeout = 1 * time.Second
++var connectTimeout = 1 * time.Second
++
+ const (
+ 	// Severity.
+ 
+@@ -100,6 +103,7 @@
+ type serverConn interface {
+ 	writeString(p Priority, hostname, tag, s, nl string) error
+ 	close() error
++	setWriteDeadline(t time.Time) error
+ }
+ 
+ type netConn struct {
+@@ -273,7 +277,11 @@
+ 		nl = "\n"
+ 	}
+ 
+-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
++	if err != nil {
++		return 0, err
++	}
++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
+ 	if err != nil {
+ 		return 0, err
+ 	}
+@@ -305,6 +313,10 @@
+ 	return n.conn.Close()
+ }
+ 
++func (n *netConn) setWriteDeadline(t time.Time) error {
++	return n.conn.SetWriteDeadline(t)
++}
++
+ // NewLogger creates a log.Logger whose output is written to
+ // the system log service with the specified priority. The logFlag
+ // argument is the flag set passed through to log.New to create
+diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
+--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
+@@ -19,7 +19,7 @@
+ 	logPaths := []string{"/dev/log", "/var/run/syslog"}
+ 	for _, network := range logTypes {
+ 		for _, path := range logPaths {
+-			conn, err := net.Dial(network, path)
++			conn, err := net.DialTimeout(network, path, connectTimeout)
+ 			if err != nil {
+ 				continue
+ 			} else {
diff --git a/meta/recipes-devtools/go/go-1.7.inc b/meta/recipes-devtools/go/go-1.7.inc
new file mode 100644
index 0000000..5c3004e
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7.inc
@@ -0,0 +1,19 @@ 
+require go-common.inc
+
+PV = "1.7.4"
+GO_BASEVERSION = "1.7"
+FILESEXTRAPATHS_prepend := "${FILE_DIRNAME}/go-${GO_BASEVERSION}:"
+
+LIC_FILES_CHKSUM = "file://LICENSE;md5=5d4950ecb7b26d2c5e4e7b4e0dd74707"
+
+SRC_URI += "\
+       file://armhf-elf-header.patch \
+       file://syslog.patch \
+       file://fix-target-cc-for-build.patch \
+       file://fix-cc-handling.patch \
+       file://split-host-and-target-build.patch \
+       file://gotooldir.patch \
+"
+SRC_URI[md5sum] = "49c1076428a5d3b5ad7ac65233fcca2f"
+SRC_URI[sha256sum] = "4c189111e9ba651a2bb3ee868aa881fab36b2f2da3409e80885ca758a6b614cc"
+
diff --git a/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
new file mode 100644
index 0000000..1e3a16b
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/armhf-elf-header.patch
@@ -0,0 +1,23 @@ 
+Encode arm EABI ( hard/soft ) calling convention in ELF header
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/cmd/link/internal/ld/elf.go
+===================================================================
+--- go.orig/src/cmd/link/internal/ld/elf.go
++++ go/src/cmd/link/internal/ld/elf.go
+@@ -827,7 +827,13 @@
+ 	// 32-bit architectures
+ 	case '5':
+ 		// we use EABI on both linux/arm and freebsd/arm.
+-		if HEADTYPE == obj.Hlinux || HEADTYPE == obj.Hfreebsd {
++		if HEADTYPE == obj.Hlinux {
++			if Ctxt.Goarm == 7 {
++				ehdr.flags = 0x5000402 // has entry point, Version5 EABI, hard float
++			} else {
++				ehdr.flags = 0x5000202 // has entry point, Version5 EABI, soft float
++			}
++		} else if HEADTYPE == obj.Hfreebsd {
+ 			// We set a value here that makes no indication of which
+ 			// float ABI the object uses, because this is information
+ 			// used by the dynamic linker to compare executables and
diff --git a/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
new file mode 100644
index 0000000..a67caf4
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/fix-cc-handling.patch
@@ -0,0 +1,50 @@ 
+Accept CC with multiple words in its name
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/cmd/go/build.go
+===================================================================
+--- go.orig/src/cmd/go/build.go
++++ go/src/cmd/go/build.go
+@@ -2991,12 +2991,24 @@ func (b *builder) gccCmd(objdir string)
+ 	return b.ccompilerCmd("CC", defaultCC, objdir)
+ }
+ 
++// gccCmd returns a gcc command line prefix
++// defaultCC is defined in zdefaultcc.go, written by cmd/dist.
++func (b *builder) gccCmdForReal() []string {
++	return envList("CC", defaultCC)
++}
++
+ // gxxCmd returns a g++ command line prefix
+ // defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
+ func (b *builder) gxxCmd(objdir string) []string {
+ 	return b.ccompilerCmd("CXX", defaultCXX, objdir)
+ }
+ 
++// gxxCmd returns a g++ command line prefix
++// defaultCXX is defined in zdefaultcc.go, written by cmd/dist.
++func (b *builder) gxxCmdForReal() []string {
++	return envList("CXX", defaultCXX)
++}
++
+ // gfortranCmd returns a gfortran command line prefix.
+ func (b *builder) gfortranCmd(objdir string) []string {
+ 	return b.ccompilerCmd("FC", "gfortran", objdir)
+Index: go/src/cmd/go/env.go
+===================================================================
+--- go.orig/src/cmd/go/env.go
++++ go/src/cmd/go/env.go
+@@ -51,10 +51,9 @@ func mkEnv() []envVar {
+ 
+ 	if goos != "plan9" {
+ 		cmd := b.gccCmd(".")
+-		env = append(env, envVar{"CC", cmd[0]})
++		env = append(env, envVar{"CC", strings.Join(b.gccCmdForReal(), " ")})
+ 		env = append(env, envVar{"GOGCCFLAGS", strings.Join(cmd[3:], " ")})
+-		cmd = b.gxxCmd(".")
+-		env = append(env, envVar{"CXX", cmd[0]})
++		env = append(env, envVar{"CXX", strings.Join(b.gxxCmdForReal(), " ")})
+ 	}
+ 
+ 	if buildContext.CgoEnabled {
diff --git a/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
new file mode 100644
index 0000000..2f6156e
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/fix-target-cc-for-build.patch
@@ -0,0 +1,17 @@ 
+Put Quotes around CC_FOR_TARGET since it can be mutliple words e.g. in OE
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/make.bash
+===================================================================
+--- go.orig/src/make.bash	2015-07-29 13:28:11.334031696 -0700
++++ go/src/make.bash	2015-07-29 13:36:55.814465630 -0700
+@@ -158,7 +158,7 @@
+ fi
+ 
+ echo "##### Building packages and commands for $GOOS/$GOARCH."
+-CC=$CC_FOR_TARGET "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
++CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
+ echo
+ 
+ rm -f "$GOTOOLDIR"/go_bootstrap
diff --git a/meta/recipes-devtools/go/go-1.7/gotooldir.patch b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
new file mode 100644
index 0000000..9467025
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/gotooldir.patch
@@ -0,0 +1,30 @@ 
+Define tooldir in relation to GOTOOLDIR env var
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/go/build/build.go
+===================================================================
+--- go.orig/src/go/build/build.go
++++ go/src/go/build/build.go
+@@ -1388,7 +1388,7 @@ func init() {
+ }
+ 
+ // ToolDir is the directory containing build tools.
+-var ToolDir = filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH)
++var ToolDir = envOr("GOTOOLDIR", filepath.Join(runtime.GOROOT(), "pkg/tool/"+runtime.GOOS+"_"+runtime.GOARCH))
+ 
+ // IsLocalImport reports whether the import path is
+ // a local import path, like ".", "..", "./foo", or "../foo".
+Index: go/src/cmd/go/build.go
+===================================================================
+--- go.orig/src/cmd/go/build.go
++++ go/src/cmd/go/build.go
+@@ -1312,7 +1312,7 @@ func (b *builder) build(a *action) (err
+ 		}
+ 
+ 		cgoExe := tool("cgo")
+-		if a.cgo != nil && a.cgo.target != "" {
++		if a.cgo != nil && a.cgo.target != "" && os.Getenv("GOTOOLDIR") == "" {
+ 			cgoExe = a.cgo.target
+ 		}
+ 		outGo, outObj, err := b.cgo(a.p, cgoExe, obj, pcCFLAGS, pcLDFLAGS, cgofiles, gccfiles, cxxfiles, a.p.MFiles)
diff --git a/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
new file mode 100644
index 0000000..b0dd95b
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/split-host-and-target-build.patch
@@ -0,0 +1,62 @@ 
+Add new option --target-only to build target components
+Separates the host and target pieces of build
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+Index: go/src/make.bash
+===================================================================
+--- go.orig/src/make.bash
++++ go/src/make.bash
+@@ -154,13 +154,22 @@ if [ "$1" = "--no-clean" ]; then
+ 	buildall=""
+ 	shift
+ fi
+-./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
++do_host_build="yes"
++do_target_build="yes"
++if [ "$1" = "--target-only" ]; then
++	do_host_build="no"
++	shift
++elif [ "$1" = "--host-only" ]; then
++	do_target_build="no"
++	shift
++fi
+ 
+-# Delay move of dist tool to now, because bootstrap may clear tool directory.
+-mv cmd/dist/dist "$GOTOOLDIR"/dist
+-echo
++if [ "$do_host_build" = "yes" ]; then
++	./cmd/dist/dist bootstrap $buildall $GO_DISTFLAGS -v # builds go_bootstrap
++	# Delay move of dist tool to now, because bootstrap may clear tool directory.
++	mv cmd/dist/dist "$GOTOOLDIR"/dist
++	echo
+ 
+-if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOHOSTOS" != "$GOOS" ]; then
+ 	echo "##### Building packages and commands for host, $GOHOSTOS/$GOHOSTARCH."
+ 	# CC_FOR_TARGET is recorded as the default compiler for the go tool. When building for the host, however,
+ 	# use the host compiler, CC, from `cmd/dist/dist env` instead.
+@@ -169,11 +178,20 @@ if [ "$GOHOSTARCH" != "$GOARCH" -o "$GOH
+ 	echo
+ fi
+ 
+-echo "##### Building packages and commands for $GOOS/$GOARCH."
+-CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v std cmd
+-echo
++if [ "$do_target_build" = "yes" ]; then
++    GO_INSTALL="${GO_TARGET_INSTALL:-std cmd}"
++    echo "##### Building packages and commands for $GOOS/$GOARCH."
++    if [ "$GOHOSTOS" = "$GOOS" -a "$GOHOSTARCH" = "$GOARCH" -a "$do_host_build" = "yes" ]; then
++	rm -rf ./host-tools
++	mkdir ./host-tools
++	mv "$GOTOOLDIR"/* ./host-tools
++	GOTOOLDIR="$PWD/host-tools"
++    fi
++    GOTOOLDIR="$GOTOOLDIR" CC="$CC_FOR_TARGET" "$GOTOOLDIR"/go_bootstrap install $GO_FLAGS -gcflags "$GO_GCFLAGS" -ldflags "$GO_LDFLAGS" -v ${GO_INSTALL}
++    echo
+ 
+-rm -f "$GOTOOLDIR"/go_bootstrap
++    rm -f "$GOTOOLDIR"/go_bootstrap
++fi
+ 
+ if [ "$1" != "--no-banner" ]; then
+ 	"$GOTOOLDIR"/dist banner
diff --git a/meta/recipes-devtools/go/go-1.7/syslog.patch b/meta/recipes-devtools/go/go-1.7/syslog.patch
new file mode 100644
index 0000000..29be06f
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.7/syslog.patch
@@ -0,0 +1,62 @@ 
+Add timeouts to logger
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Upstream-Status: Pending
+
+diff -r -u go/src/log/syslog/syslog.go /home/achang/GOCOPY/go/src/log/syslog/syslog.go
+--- go/src/log/syslog/syslog.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog.go	2014-10-03 11:44:37.710403200 -0700
+@@ -33,6 +33,9 @@
+ const severityMask = 0x07
+ const facilityMask = 0xf8
+ 
++var writeTimeout = 1 * time.Second
++var connectTimeout = 1 * time.Second
++
+ const (
+ 	// Severity.
+ 
+@@ -100,6 +103,7 @@
+ type serverConn interface {
+ 	writeString(p Priority, hostname, tag, s, nl string) error
+ 	close() error
++	setWriteDeadline(t time.Time) error
+ }
+ 
+ type netConn struct {
+@@ -273,7 +277,11 @@
+ 		nl = "\n"
+ 	}
+ 
+-	err := w.conn.writeString(p, w.hostname, w.tag, msg, nl)
++	err := w.conn.setWriteDeadline(time.Now().Add(writeTimeout))
++	if err != nil {
++		return 0, err
++	}
++	err = w.conn.writeString(p, w.hostname, w.tag, msg, nl)
+ 	if err != nil {
+ 		return 0, err
+ 	}
+@@ -305,6 +313,10 @@
+ 	return n.conn.Close()
+ }
+ 
++func (n *netConn) setWriteDeadline(t time.Time) error {
++	return n.conn.SetWriteDeadline(t)
++}
++
+ // NewLogger creates a log.Logger whose output is written to
+ // the system log service with the specified priority. The logFlag
+ // argument is the flag set passed through to log.New to create
+diff -r -u go/src/log/syslog/syslog_unix.go /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go
+--- go/src/log/syslog/syslog_unix.go	2013-11-28 13:38:28.000000000 -0800
++++ /home/achang/GOCOPY/go/src/log/syslog/syslog_unix.go	2014-10-03 11:44:39.010403175 -0700
+@@ -19,7 +19,7 @@
+ 	logPaths := []string{"/dev/log", "/var/run/syslog"}
+ 	for _, network := range logTypes {
+ 		for _, path := range logPaths {
+-			conn, err := net.Dial(network, path)
++			conn, err := net.DialTimeout(network, path, connectTimeout)
+ 			if err != nil {
+ 				continue
+ 			} else {
diff --git a/meta/recipes-devtools/go/go-common.inc b/meta/recipes-devtools/go/go-common.inc
new file mode 100644
index 0000000..f74b8b7
--- /dev/null
+++ b/meta/recipes-devtools/go/go-common.inc
@@ -0,0 +1,22 @@ 
+SUMMARY = "Go programming language compiler"
+DESCRIPTION = " The Go programming language is an open source project to make \
+ programmers more productive. Go is expressive, concise, clean, and\
+ efficient. Its concurrency mechanisms make it easy to write programs\
+ that get the most out of multicore and networked machines, while its\
+ novel type system enables flexible and modular program construction.\
+ Go compiles quickly to machine code yet has the convenience of\
+ garbage collection and the power of run-time reflection. It's a\
+ fast, statically typed, compiled language that feels like a\
+ dynamically typed, interpreted language."
+
+HOMEPAGE = " http://golang.org/"
+LICENSE = "BSD-3-Clause"
+
+inherit goarch
+
+SRC_URI = "http://golang.org/dl/go${PV}.src.tar.gz"
+S = "${WORKDIR}/go"
+B = "${S}"
+
+INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
+SSTATE_SCAN_CMD = "true"
diff --git a/meta/recipes-devtools/go/go-cross.inc b/meta/recipes-devtools/go/go-cross.inc
new file mode 100644
index 0000000..a6b31c8
--- /dev/null
+++ b/meta/recipes-devtools/go/go-cross.inc
@@ -0,0 +1,10 @@ 
+inherit cross
+
+DEPENDS += "gcc-cross-${TARGET_ARCH}"
+
+PN = "go-cross-${TARGET_ARCH}"
+
+FILESEXTRAPATHS =. "${FILE_DIRNAME}/go-cross:"
+
+GOROOT_FINAL = "${libdir}/go"
+export GOROOT_FINAL
diff --git a/meta/recipes-devtools/go/go-cross_1.7.bb b/meta/recipes-devtools/go/go-cross_1.7.bb
new file mode 100644
index 0000000..56ee084
--- /dev/null
+++ b/meta/recipes-devtools/go/go-cross_1.7.bb
@@ -0,0 +1,5 @@ 
+require go-cross.inc
+require go_${PV}.bb
+
+# Go binaries are not understood by the strip tool.
+INHIBIT_SYSROOT_STRIP = "1"
diff --git a/meta/recipes-devtools/go/go-native.inc b/meta/recipes-devtools/go/go-native.inc
new file mode 100644
index 0000000..89bc634
--- /dev/null
+++ b/meta/recipes-devtools/go/go-native.inc
@@ -0,0 +1,54 @@ 
+inherit native
+
+export GOOS = "${BUILD_GOOS}"
+export GOARCH = "${BUILD_GOARCH}"
+export GOROOT_FINAL = "${STAGING_LIBDIR_NATIVE}/go"
+export CGO_ENABLED = "1"
+
+do_configure[noexec] = "1"
+
+do_compile() {
+	export GOBIN="${B}/bin"
+	rm -rf ${GOBIN}
+	mkdir ${GOBIN}
+
+	export TMPDIR=${WORKDIR}/build-tmp
+	mkdir -p ${WORKDIR}/build-tmp
+
+	cd src
+	CGO_ENABLED=0 ./make.bash --host-only
+}
+
+make_wrapper() {
+	rm -f ${D}${bindir}/$2
+	cat <<END >${D}${bindir}/$2
+#!/bin/bash
+here=\`dirname \$0\`
+export GOROOT="${GOROOT:-\`readlink -f \$here/../lib/go\`}"
+\$here/../lib/go/bin/$1 "\$@"
+END
+	chmod +x ${D}${bindir}/$2
+}
+
+do_install() {
+	install -d ${D}${libdir}/go
+	cp -a ${B}/pkg ${D}${libdir}/go/
+	install -d ${D}${libdir}/go/src
+	(cd ${S}/src; for d in *; do \
+		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
+	done)
+
+	install -d ${D}${bindir} ${D}${libdir}/go/bin
+	for f in ${B}/bin/*
+	do
+		base=`basename $f`
+		install -m755 $f ${D}${libdir}/go/bin
+		make_wrapper $base $base
+	done
+}
+
+do_package[noexec] = "1"
+do_packagedata[noexec] = "1"
+do_package_write_ipk[noexec] = "1"
+do_package_write_deb[noexec] = "1"
+do_package_write_rpm[noexec] = "1"
diff --git a/meta/recipes-devtools/go/go-native_1.4.bb b/meta/recipes-devtools/go/go-native_1.4.bb
new file mode 100644
index 0000000..bbf3c0d
--- /dev/null
+++ b/meta/recipes-devtools/go/go-native_1.4.bb
@@ -0,0 +1,2 @@ 
+require ${PN}.inc
+require go-${PV}.inc
diff --git a/meta/recipes-devtools/go/go.inc b/meta/recipes-devtools/go/go.inc
new file mode 100644
index 0000000..d0d443c
--- /dev/null
+++ b/meta/recipes-devtools/go/go.inc
@@ -0,0 +1,80 @@ 
+inherit goarch
+# libgcc is required for the target specific libraries to build properly
+DEPENDS += " go-native libgcc"
+# Prevent runstrip from running because you get errors when the host arch != target arch
+INHIBIT_PACKAGE_STRIP = "1"
+INHIBIT_SYSROOT_STRIP = "1"
+
+export GOHOSTOS = "${BUILD_GOOS}"
+export GOHOSTARCH = "${BUILD_GOARCH}"
+export GOOS = "${TARGET_GOOS}"
+export GOARCH = "${TARGET_GOARCH}"
+export GOARM = "${TARGET_GOARM}"
+export GOROOT_BOOTSTRAP = "${STAGING_LIBDIR_NATIVE}/go"
+export GOROOT_FINAL = "${libdir}/go"
+export CGO_ENABLED = "1"
+export CC_FOR_TARGET = "${CC}"
+export CXX_FOR_TARGET = "${CXX}"
+
+do_configure[noexec] = "1"
+
+do_compile_prepend_class-cross() {
+	export CGO_ENABLED=0
+}
+
+do_compile() {
+	export GOBIN="${B}/bin"
+	export CC="${@d.getVar('BUILD_CC', True).strip()}"
+	rm -rf ${GOBIN} ${B}/pkg
+	mkdir ${GOBIN}
+
+	export TMPDIR=${WORKDIR}/build-tmp
+	mkdir -p ${WORKDIR}/build-tmp
+
+	cd src
+	./make.bash --host-only
+	# Ensure cgo.a is built with the target toolchain
+	export GOBIN="${B}/target/bin"
+	rm -rf ${GOBIN}
+	mkdir -p ${GOBIN}
+	GO_FLAGS="-a" ./make.bash
+}
+
+do_install_class-target() {
+	install -d ${D}${libdir}/go
+	cp -a ${B}/pkg ${D}${libdir}/go/
+	install -d ${D}${libdir}/go/src
+	(cd ${S}/src; for d in *; do \
+		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
+	done)
+	install -d ${D}${bindir}
+	if [ -d ${B}/bin/${GOOS}_${GOARCH} ]
+	then
+		install -m 0755 ${B}/bin/${GOOS}_${GOARCH}/* ${D}${bindir}
+	else
+		install -m 0755 ${B}/bin/* ${D}${bindir}
+	fi
+}
+
+do_install_class-cross() {
+	install -d ${D}${libdir}/go
+	cp -a ${B}/pkg ${D}${libdir}/go/
+	install -d ${D}${libdir}/go/src
+	(cd ${S}/src; for d in *; do \
+		[ -d $d ] && cp -a ${S}/src/$d ${D}${libdir}/go/src/; \
+	done)
+	install -d ${D}${bindir}
+	for f in ${B}/bin/go*
+	do
+		install -m755 $f ${D}${bindir}
+	done
+}
+
+INSANE_SKIP_${PN} += "staticdev"
+RDEPENDS_${PN} += "perl"
+
+do_package[noexec] = "1"
+do_packagedata[noexec] = "1"
+do_package_write_ipk[noexec] = "1"
+do_package_write_deb[noexec] = "1"
+do_package_write_rpm[noexec] = "1"
diff --git a/meta/recipes-devtools/go/go_1.6.bb b/meta/recipes-devtools/go/go_1.6.bb
new file mode 100644
index 0000000..2f59033
--- /dev/null
+++ b/meta/recipes-devtools/go/go_1.6.bb
@@ -0,0 +1,4 @@ 
+require go.inc
+require go-${PV}.inc
+
+BBCLASSEXTEND = "cross"
diff --git a/meta/recipes-devtools/go/go_1.7.bb b/meta/recipes-devtools/go/go_1.7.bb
new file mode 100644
index 0000000..e7a6ab2
--- /dev/null
+++ b/meta/recipes-devtools/go/go_1.7.bb
@@ -0,0 +1,2 @@ 
+require go-${PV}.inc
+require go.inc
diff --git a/meta/recipes-extended/go-examples/files/helloworld.go b/meta/recipes-extended/go-examples/files/helloworld.go
new file mode 100644
index 0000000..0253c40
--- /dev/null
+++ b/meta/recipes-extended/go-examples/files/helloworld.go
@@ -0,0 +1,10 @@ 
+// You can edit this code!
+// Click here and start typing.
+// taken from https://golang.org/
+package main
+
+import "fmt"
+
+func main() {
+	fmt.Println("Hello, 世界")
+}
diff --git a/meta/recipes-extended/go-examples/go-examples.inc b/meta/recipes-extended/go-examples/go-examples.inc
new file mode 100644
index 0000000..c632681
--- /dev/null
+++ b/meta/recipes-extended/go-examples/go-examples.inc
@@ -0,0 +1,10 @@ 
+DESCRIPTION = "This is a simple example recipe that cross-compiles a Go program."
+SECTION = "examples"
+HOMEPAGE = "https://golang.org/"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+S = "${WORKDIR}"
+
+inherit go
diff --git a/meta/recipes-extended/go-examples/go-helloworld_0.1.bb b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
new file mode 100644
index 0000000..930c57d
--- /dev/null
+++ b/meta/recipes-extended/go-examples/go-helloworld_0.1.bb
@@ -0,0 +1,13 @@ 
+require go-examples.inc
+
+SRC_URI += " \
+  file://helloworld.go \
+"
+
+do_compile() {
+	go build helloworld.go
+}
+
+do_install() {
+	install -D -m 0755 ${S}/helloworld ${D}${bindir}/helloworld
+}