[02/10] security_flags.inc: Delete pinnings for SECURITY_NO_PIE_CFLAGS

Message ID 80c14cbb1b41755ac3370626f36f7fc84f106f92.1497453168.git.raj.khem@gmail.com
State Superseded
Headers show
Series
  • Add GCCPIE knob to configure gcc with --enable-default-pie
Related show

Commit Message

Khem Raj June 14, 2017, 3:23 p.m.
GCC is configured correctly to pass PIE cflags/ldflags

Signed-off-by: Khem Raj <raj.khem@gmail.com>

---
 meta/conf/distro/include/security_flags.inc | 83 ++++++++---------------------
 1 file changed, 22 insertions(+), 61 deletions(-)

-- 
2.13.1

-- 
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diff --git a/meta/conf/distro/include/security_flags.inc b/meta/conf/distro/include/security_flags.inc
index d3b7257240..f6bbf70655 100644
--- a/meta/conf/distro/include/security_flags.inc
+++ b/meta/conf/distro/include/security_flags.inc
@@ -1,4 +1,4 @@ 
-# Setup extra CFLAGS and LDFLAGS which have 'security' benefits. These 
+# Setup extra CFLAGS and LDFLAGS which have 'security' benefits. These
 # don't work universally, there are recipes which can't use one, the other
 # or both so a blacklist is maintained here. The idea would be over
 # time to reduce this list to nothing.
@@ -14,89 +14,45 @@  lcl_maybe_fortify = "${@base_conditional('DEBUG_BUILD','1','','-D_FORTIFY_SOURCE
 # Error on use of format strings that represent possible security problems
 SECURITY_STRINGFORMAT ?= "-Wformat -Wformat-security -Werror=format-security"
 
-SECURITY_CFLAGS ?= "-fstack-protector-strong ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}"
+# Inject pie flags into compiler flags if not configured with gcc itself
+# especially useful with external toolchains
+SECURITY_PIE_CFLAGS ?= "${@'' if '${GCCPIE}' else '-pie -fPIE'}"
+
+SECURITY_NOPIE_CFLAGS ?= "-no-pie -fno-PIE"
+
+SECURITY_CFLAGS ?= "-fstack-protector-strong ${SECURITY_PIE_CFLAGS} ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}"
 SECURITY_NO_PIE_CFLAGS ?= "-fstack-protector-strong ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}"
 
 SECURITY_LDFLAGS ?= "-fstack-protector-strong -Wl,-z,relro,-z,now"
 SECURITY_X_LDFLAGS ?= "-fstack-protector-strong -Wl,-z,relro"
 
 # powerpc does not get on with pie for reasons not looked into as yet
-SECURITY_CFLAGS_powerpc = "-fstack-protector-strong ${lcl_maybe_fortify}"
-# Deal with ppc specific linker failures when using the cflags
-SECURITY_CFLAGS_pn-dbus_powerpc = ""
-SECURITY_CFLAGS_pn-dbus-ptest_powerpc = ""
-SECURITY_CFLAGS_pn-libmatchbox_powerpc = ""
+SECURITY_CFLAGS_powerpc = "-fstack-protector-strong ${lcl_maybe_fortify} ${SECURITY_NOPIE_CFLAGS}"
+SECURITY_CFLAGS_pn-libgcc_powerpc = ""
 
 # arm specific security flag issues
-SECURITY_CFLAGS_pn-lttng-tools_arm = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-aspell = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-beecrypt = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-coreutils = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-cups = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-db = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-directfb = "${SECURITY_NO_PIE_CFLAGS}"
 SECURITY_CFLAGS_pn-glibc = ""
 SECURITY_CFLAGS_pn-glibc-initial = ""
-SECURITY_CFLAGS_pn-elfutils = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-enchant = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-expect = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-flac = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gcc = "${SECURITY_NO_PIE_CFLAGS}"
 SECURITY_CFLAGS_pn-gcc-runtime = ""
-SECURITY_CFLAGS_pn-gcc-sanitizers = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gdb = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gmp = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gnutls = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gpgme = "${SECURITY_NO_PIE_CFLAGS}"
 SECURITY_CFLAGS_pn-grub = ""
 SECURITY_CFLAGS_pn-grub-efi = ""
 SECURITY_CFLAGS_pn-grub-efi-native = ""
 SECURITY_CFLAGS_pn-grub-efi-x86-native = ""
 SECURITY_CFLAGS_pn-grub-efi-i586-native = ""
 SECURITY_CFLAGS_pn-grub-efi-x86-64-native = ""
-SECURITY_CFLAGS_pn-gstreamer1.0-plugins-bad = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-gstreamer1.0-plugins-good = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-harfbuzz = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-kexec-tools = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-iptables = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libaio = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libcap = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libgcc = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libid3tag = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libnewt-python = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libglu = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libpcap = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libpcre = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-libproxy = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-mesa = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-mesa-gl = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-openssl = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-opensp = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-ppp = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python-pycurl = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python-numpy = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python3-numpy = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python3-pycairo = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python3-pycurl = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python3-pygpgme = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-python3 = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-syslinux = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-slang = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-source-highlight = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-tcl = "${SECURITY_NO_PIE_CFLAGS}"
-SECURITY_CFLAGS_pn-tiff = "${SECURITY_NO_PIE_CFLAGS}"
 SECURITY_CFLAGS_pn-uclibc = ""
 SECURITY_CFLAGS_pn-uclibc-initial = ""
-SECURITY_CFLAGS_pn-valgrind = ""
-SECURITY_CFLAGS_pn-zlib = "${SECURITY_NO_PIE_CFLAGS}"
+
+SECURITY_CFLAGS_pn-mkelfimage_x86 = ""
+
+SECURITY_CFLAGS_pn-valgrind = "${SECURITY_NOPIE_CFLAGS}"
+SECURITY_LDFLAGS_pn-valgrind = ""
 
 # Recipes which fail to compile when elevating -Wformat-security to an error
 SECURITY_STRINGFORMAT_pn-busybox = ""
 SECURITY_STRINGFORMAT_pn-gcc = ""
-SECURITY_STRINGFORMAT_pn-oh-puzzles = ""
 
-TARGET_CFLAGS_append_class-target = " ${SECURITY_CFLAGS}"
+TARGET_CC_ARCH_append_class-target = " ${SECURITY_CFLAGS}"
 TARGET_LDFLAGS_append_class-target = " ${SECURITY_LDFLAGS}"
 
 SECURITY_LDFLAGS_remove_pn-gcc-runtime = "-fstack-protector-strong"
@@ -104,6 +60,8 @@  SECURITY_LDFLAGS_remove_pn-glibc = "-fstack-protector-strong"
 SECURITY_LDFLAGS_remove_pn-glibc-initial = "-fstack-protector-strong"
 SECURITY_LDFLAGS_remove_pn-uclibc = "-fstack-protector-strong"
 SECURITY_LDFLAGS_remove_pn-uclibc-initial = "-fstack-protector-strong"
+SECURITY_LDFLAGS_remove_pn-mkelfimage_x86 = "-fstack-protector-strong"
+
 SECURITY_LDFLAGS_pn-xf86-video-fbdev = "${SECURITY_X_LDFLAGS}"
 SECURITY_LDFLAGS_pn-xf86-video-intel = "${SECURITY_X_LDFLAGS}"
 SECURITY_LDFLAGS_pn-xf86-video-omapfb = "${SECURITY_X_LDFLAGS}"
@@ -112,4 +70,7 @@  SECURITY_LDFLAGS_pn-xf86-video-vesa = "${SECURITY_X_LDFLAGS}"
 SECURITY_LDFLAGS_pn-xf86-video-vmware = "${SECURITY_X_LDFLAGS}"
 SECURITY_LDFLAGS_pn-xserver-xorg = "${SECURITY_X_LDFLAGS}"
 
-TARGET_CC_ARCH_append_pn-binutils = " ${SECURITY_CFLAGS} ${SELECTED_OPTIMIZATION}"
+TARGET_CC_ARCH_append_pn-binutils = " ${SELECTED_OPTIMIZATION}"
+TARGET_CC_ARCH_append_pn-gcc = " ${SELECTED_OPTIMIZATION}"
+TARGET_CC_ARCH_append_pn-gdb = " ${SELECTED_OPTIMIZATION}"
+TARGET_CC_ARCH_append_pn-perf = " ${SELECTED_OPTIMIZATION}"