[06/13] posix: Consolidate Linux msync syscall

Message ID 1494611894-9282-6-git-send-email-adhemerval.zanella@linaro.org
State New
Headers show
Series
  • [01/13] posix: Consolidate Linux pause syscall
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Commit Message

Adhemerval Zanella May 12, 2017, 5:58 p.m.
This patch consolidates the msync Linux syscall generation on
sysdeps/unix/sysv/linux/msync.c.  It basically removes it from
architectures auto-generation list.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,
sparc64-linux-gnu, and sparcv9-linux-gnu.

	* misc/Makefile (CFLAGS-msync.c): New rule.
	* nptl/Makefile (CFLAGS-msync.c): Likewise.
	* sysdeps/unix/syscalls.list: Remove msync from auto-generation list.
	* sysdeps/unix/sysv/linux/msync.c: New file.
---
 ChangeLog                       |  5 +++++
 misc/Makefile                   |  1 +
 nptl/Makefile                   |  1 +
 sysdeps/unix/syscalls.list      |  1 -
 sysdeps/unix/sysv/linux/msync.c | 26 ++++++++++++++++++++++++++
 5 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 sysdeps/unix/sysv/linux/msync.c

-- 
2.7.4

Comments

Siddhesh Poyarekar May 18, 2017, 7:18 p.m. | #1
On Friday 12 May 2017 11:28 PM, Adhemerval Zanella wrote:
> This patch consolidates the msync Linux syscall generation on

> sysdeps/unix/sysv/linux/msync.c.  It basically removes it from

> architectures auto-generation list.

> 

> Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,

> arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu,

> sparc64-linux-gnu, and sparcv9-linux-gnu.

> 

> 	* misc/Makefile (CFLAGS-msync.c): New rule.

> 	* nptl/Makefile (CFLAGS-msync.c): Likewise.

> 	* sysdeps/unix/syscalls.list: Remove msync from auto-generation list.

> 	* sysdeps/unix/sysv/linux/msync.c: New file.


This is fine.

Siddhesh

Patch hide | download patch | download mbox

diff --git a/misc/Makefile b/misc/Makefile
index 91e425b..8536255 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -108,6 +108,7 @@  CFLAGS-getsysstats.c = -fexceptions
 CFLAGS-getusershell.c = -fexceptions
 CFLAGS-err.c = -fexceptions
 CFLAGS-tst-tsearch.c = $(stack-align-test-flags)
+CFLAGS-msync.c = -fexceptions
 
 # Called during static library initialization, so turn stack-protection
 # off for non-shared builds.
diff --git a/nptl/Makefile b/nptl/Makefile
index cdf69bd..875ab3d 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -217,6 +217,7 @@  CFLAGS-close.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-read.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-write.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-nanosleep.c = -fexceptions -fasynchronous-unwind-tables
+CFLAGS-msync.c = -fexceptions -fasynchronous-unwind-tables
 
 CFLAGS-pt-system.c = -fexceptions
 
diff --git a/sysdeps/unix/syscalls.list b/sysdeps/unix/syscalls.list
index 2254c76..c4135d8 100644
--- a/sysdeps/unix/syscalls.list
+++ b/sysdeps/unix/syscalls.list
@@ -45,7 +45,6 @@  madvise		-	madvise		i:pii	__madvise	madvise
 mkdir		-	mkdir		i:si	__mkdir		mkdir
 mmap		-	mmap		b:aniiii __mmap		mmap
 mprotect	-	mprotect	i:aii	__mprotect	mprotect
-msync		-	msync		Ci:aii	__libc_msync	msync
 munmap		-	munmap		i:ai	__munmap	munmap
 open		-	open		Ci:siv	__libc_open __open open
 profil		-	profil		i:piii	__profil	profil
diff --git a/sysdeps/unix/sysv/linux/msync.c b/sysdeps/unix/sysv/linux/msync.c
new file mode 100644
index 0000000..28aba11
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/msync.c
@@ -0,0 +1,26 @@ 
+/* Linux synchronize a file with a memory map implementation.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sys/mman.h>
+#include <sysdep-cancel.h>
+
+int
+msync (void *addr, size_t length, int flags)
+{
+  return SYSCALL_CANCEL (msync, addr, length, flags);
+}