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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-10-14 03:45:32 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-10-14 03:45:46 -0700 |
| commit | 8f763b04a0249d5a94a667da31294dd2395ec3bf (patch) | |
| tree | 81bb68b3bb690c09e2e61eb197e24dcff78f04d6 /sysdeps/unix/sysv/linux/i386/brk.c | |
| parent | d7025badd8bae7ff8bc37551d868a22832a7bc94 (diff) | |
| download | glibc-8f763b04a0249d5a94a667da31294dd2395ec3bf.tar.gz glibc-8f763b04a0249d5a94a667da31294dd2395ec3bf.tar.xz glibc-8f763b04a0249d5a94a667da31294dd2395ec3bf.zip | |
Use INTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE
This patch uses INTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE to avoid reading and writing errno directly so that we don't need to call __x86.get_pc_thunk.reg to load PC into reg in case there is an error. * sysdeps/unix/sysv/linux/i386/brk.c (__brk): Use INLINE_SYSCALL_ERROR_RETURN_VALUE. * sysdeps/unix/sysv/linux/i386/fxstatat.c (__fxstatat): Likewise. * sysdeps/unix/sysv/linux/i386/setegid.c (setegid): Likewise. * sysdeps/unix/sysv/linux/i386/seteuid.c (seteuid): Likewise. * sysdeps/unix/sysv/linux/i386/fxstat.c (__fxstat): Use INTERNAL_SYSCALLINTERNAL_SYSCALL and INLINE_SYSCALL_ERROR_RETURN_VALUE. * sysdeps/unix/sysv/linux/i386/lockf64.c (lockf64): Likewise. * sysdeps/unix/sysv/linux/i386/lxstat.c (__lxstat): Likewise. * sysdeps/unix/sysv/linux/i386/sigaction.c (__libc_sigaction): Likewise. * sysdeps/unix/sysv/linux/i386/xstat.c (__xstat): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/brk.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/brk.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/brk.c b/sysdeps/unix/sysv/linux/i386/brk.c index 5b9a0ce735..e360664039 100644 --- a/sysdeps/unix/sysv/linux/i386/brk.c +++ b/sysdeps/unix/sysv/linux/i386/brk.c @@ -31,19 +31,11 @@ weak_alias (__curbrk, ___brk_addr) int __brk (void *addr) { - void *newbrk; - INTERNAL_SYSCALL_DECL (err); - newbrk = (void *) INTERNAL_SYSCALL (brk, err, 1, addr); - + void *newbrk = (void *) INTERNAL_SYSCALL (brk, err, 1, addr); __curbrk = newbrk; - if (newbrk < addr) - { - __set_errno (ENOMEM); - return -1; - } - + return INLINE_SYSCALL_ERROR_RETURN_VALUE (ENOMEM); return 0; } weak_alias (__brk, brk) |