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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/x86/gettimeofday.c
bd858b6cf58e632d51f55c89c80fcec0570016f7
1 /* gettimeofday - get the time. Linux/x86 version.
2 Copyright (C) 2015-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
27 __gettimeofday_syscall (struct timeval
*tv
, struct timezone
*tz
)
29 return INLINE_SYSCALL (gettimeofday
, 2, tv
, tz
);
32 # ifndef __gettimeofday_type
33 /* The i386 gettimeofday.c includes this file with a defined
34 __gettimeofday_type macro. For x86_64 we have to define it to __gettimeofday
35 as the internal symbol is the ifunc'ed one. */
36 # define __gettimeofday_type __gettimeofday
40 # define INIT_ARCH() PREPARE_VERSION_KNOWN (linux26, LINUX_2_6)
41 /* If the vDSO is not available we fall back to syscall. */
42 libc_ifunc_hidden (__gettimeofday_type
, __gettimeofday
,
43 (_dl_vdso_vsym ("__vdso_gettimeofday", &linux26
)
44 ?: &__gettimeofday_syscall
))
45 libc_hidden_def (__gettimeofday
)
53 __gettimeofday (struct timeval
*tv
, struct timezone
*tz
)
55 return INLINE_SYSCALL (gettimeofday
, 2, tv
, tz
);
57 libc_hidden_def (__gettimeofday
)
60 weak_alias (__gettimeofday
, gettimeofday
)
61 libc_hidden_weak (gettimeofday
)