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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* time system call for Linux/PowerPC.
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Copyright (C) 2013-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifdef SHARED
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# include <time.h>
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# include <sysdep.h>
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# include <dl-vdso.h>
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# include <bits/libc-vdso.h>
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# include <dl-machine.h>
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void *time_ifunc (void) asm ("time");
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static time_t
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time_syscall (time_t *t)
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{
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struct timeval tv;
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time_t result;
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if (INLINE_VSYSCALL (gettimeofday, 2, &tv, NULL) < 0)
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result = (time_t) -1;
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else
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result = (time_t) tv.tv_sec;
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if (t != NULL)
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*t = result;
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return result;
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}
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void *
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time_ifunc (void)
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{
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/* If the vDSO is not available we fall back to the syscall. */
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return (__vdso_time ? VDSO_IFUNC_RET (__vdso_time)
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: time_syscall);
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}
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asm (".type time, %gnu_indirect_function");
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/* This is doing "libc_hidden_def (time)" but the compiler won't
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* let us do it in C because it doesn't know we're defining time
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* here in this file. */
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asm (".globl __GI_time\n"
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"__GI_time = time");
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#else
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#include <sysdeps/posix/time.c>
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#endif
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