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/* Copyright (C) 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
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <sysdep.h>
#include <time.h>
# undef INLINE_SYSCALL
# define INLINE_SYSCALL(name, nr, args...) \
({ \
unsigned long long int resultvar = INTERNAL_SYSCALL (name, , nr, args); \
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, ), 0)) \
{ \
__set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \
resultvar = (unsigned long long int) -1LL; \
} \
(long long int) resultvar; })
# undef INTERNAL_SYSCALL_NCS
# define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
({ \
unsigned long long int resultvar; \
LOAD_ARGS_##nr (args) \
LOAD_REGS_##nr \
asm volatile ( \
"syscall\n\t" \
: "=a" (resultvar) \
: "0" (name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \
(long long int) resultvar; })
# undef INTERNAL_SYSCALL_ERROR_P
# define INTERNAL_SYSCALL_ERROR_P(val, err) \
((unsigned long long int) (long long int) (val) >= -4095LL)
#ifdef SHARED
# include <dl-vdso.h>
void *time_ifunc (void) __asm__ ("__GI_time");
static time_t
time_syscall (time_t *t)
{
return INLINE_SYSCALL (time, 1, t);
}
void *
time_ifunc (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
return _dl_vdso_vsym ("__vdso_time", &linux26) ?: (void *) time_syscall;
}
__asm (".type __GI_time, %gnu_indirect_function");
#else
time_t
time (time_t *t)
{
return INLINE_SYSCALL (time, 1, t);
}
#endif
libc_hidden_def (time)
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