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| author |   Ulrich Drepper <drepper@gmail.com> | 2011-09-06 21:34:11 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-09-06 21:34:11 -0400 |
| commit | a77d3c17dc6517636c1cf6ab9c6bb8c257772354 (patch) | |
| tree | c23fdba4a9a5bc7bf7e1914b18f965e8909ed2e5 /sysdeps/unix/sysv/linux/clock_gettime.c | |
| parent | Avoid gettimeofday vsyscall (diff) | |
| download | glibc-a77d3c17dc6517636c1cf6ab9c6bb8c257772354.tar.gz glibc-a77d3c17dc6517636c1cf6ab9c6bb8c257772354.tar.bz2 glibc-a77d3c17dc6517636c1cf6ab9c6bb8c257772354.zip | |
Don't unconditionally use clock_gettime vsyscall on x86-64
Diffstat (limited to 'sysdeps/unix/sysv/linux/clock_gettime.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock_gettime.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c index dd3755cce7..0ae45de371 100644 --- a/sysdeps/unix/sysv/linux/clock_gettime.c +++ b/sysdeps/unix/sysv/linux/clock_gettime.c @@ -1,5 +1,5 @@ /* clock_gettime -- Get current time from a POSIX clockid_t. Linux version. - Copyright (C) 2003,2004,2005,2006,2007,2010 Free Software Foundation, Inc. + Copyright (C) 2003,2004,2005,2006,2007,2010,2011 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 @@ -32,9 +32,14 @@ # include <bits/libc-vdso.h> #endif -#define SYSCALL_GETTIME \ - retval = INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp); \ - break +#ifndef SYSCALL_GETTIME +# define SYSCALL_GETTIME(id, tp) \ + INLINE_VSYSCALL (clock_gettime, 2, id, tp) +#endif +#ifndef INTERNAL_GETTIME +# define INTERNAL_GETTIME(id, tp) \ + INTERNAL_VSYSCALL (clock_gettime, err, 2, id, tp) +#endif #ifdef __ASSUME_POSIX_TIMERS @@ -44,7 +49,8 @@ SYSDEP_GETTIME_CPUTIME \ case CLOCK_REALTIME: \ case CLOCK_MONOTONIC: \ - SYSCALL_GETTIME + retval = SYSCALL_GETTIME (clock_id, tp); \ + break # define __libc_missing_posix_timers 0 #elif defined __NR_clock_gettime @@ -59,7 +65,7 @@ maybe_syscall_gettime (clockid_t clock_id, struct timespec *tp) if (!__libc_missing_posix_timers) { INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_VSYSCALL (clock_gettime, err, 2, clock_id, tp); + int r = INTERNAL_GETTIME (clock_id, tp); if (!INTERNAL_SYSCALL_ERROR_P (r, err)) return 0; @@ -89,7 +95,7 @@ maybe_syscall_gettime (clockid_t clock_id, struct timespec *tp) /* Fallback code. */ \ if (retval == EINVAL && clock_id == CLOCK_REALTIME) \ retval = realtime_gettime (tp); \ - else \ + else \ { \ __set_errno (retval); \ retval = -1; \ @@ -119,7 +125,7 @@ maybe_syscall_gettime_cpu (clockid_t clock_id, struct timespec *tp) if (!__libc_missing_posix_cpu_timers) { INTERNAL_SYSCALL_DECL (err); - int r = INTERNAL_VSYSCALL (clock_gettime, err, 2, clock_id, tp); + int r = INTERNAL_GETTIME (clock_id, tp); if (!INTERNAL_SYSCALL_ERROR_P (r, err)) return 0; |