[06/13] posix: Consolidate Linux msync syscall
Commit Message
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
Comments
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
@@ -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.
@@ -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
@@ -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
new file mode 100644
@@ -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);
+}