mirror of
https://sourceware.org/git/glibc.git
synced 2025-07-29 11:41:21 +03:00
Don't unconditionally use clock_gettime vsyscall on x86-64
This commit is contained in:
@ -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;
|
||||
|
||||
|
Reference in New Issue
Block a user