diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/x86/gettimeofday.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/x86/gettimeofday.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/x86/gettimeofday.c b/REORG.TODO/sysdeps/unix/sysv/linux/x86/gettimeofday.c new file mode 100644 index 0000000000..fee2fd2da3 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/x86/gettimeofday.c @@ -0,0 +1,61 @@ +/* gettimeofday - get the time. Linux/x86 version. + Copyright (C) 2015-2017 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, see + <http://www.gnu.org/licenses/>. */ + +#include <sys/time.h> + +#ifdef SHARED + +# include <dl-vdso.h> +# include <errno.h> + +static int +__gettimeofday_syscall (struct timeval *tv, struct timezone *tz) +{ + return INLINE_SYSCALL (gettimeofday, 2, tv, tz); +} + +# ifndef __gettimeofday_type +/* The i386 gettimeofday.c includes this file with a defined + __gettimeofday_type macro. For x86_64 we have to define it to __gettimeofday + as the internal symbol is the ifunc'ed one. */ +# define __gettimeofday_type __gettimeofday +# endif + +# undef INIT_ARCH +# define INIT_ARCH() PREPARE_VERSION_KNOWN (linux26, LINUX_2_6) +/* If the vDSO is not available we fall back to syscall. */ +libc_ifunc_hidden (__gettimeofday_type, __gettimeofday, + (_dl_vdso_vsym ("__vdso_gettimeofday", &linux26) + ?: &__gettimeofday_syscall)) +libc_hidden_def (__gettimeofday) + +#else + +# include <sysdep.h> +# include <errno.h> + +int +__gettimeofday (struct timeval *tv, struct timezone *tz) +{ + return INLINE_SYSCALL (gettimeofday, 2, tv, tz); +} +libc_hidden_def (__gettimeofday) + +#endif +weak_alias (__gettimeofday, gettimeofday) +libc_hidden_weak (gettimeofday) |