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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Copyright (C) 2001-2013 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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/* Redefine time so that the compiler won't complain about the type
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mismatch with the IFUNC selector in strong_alias, below. */
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#undef time
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#define time __redirect_time
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#include <time.h>
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#include <dl-vdso.h>
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#define VSYSCALL_ADDR_vtime 0xffffffffff600400
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/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
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ifunc symbol properly. */
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extern __typeof (__redirect_time) __libc_time;
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void *time_ifunc (void) __asm__ ("__libc_time");
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void *
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time_ifunc (void)
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{
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PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
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/* If the vDSO is not available we fall back on the old vsyscall. */
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return _dl_vdso_vsym ("__vdso_time", &linux26) ?: (void *) VSYSCALL_ADDR_vtime;
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}
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__asm (".type __libc_time, %gnu_indirect_function");
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#undef time
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strong_alias (__libc_time, time)
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libc_hidden_ver (__libc_time, time)
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#else
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# include <time.h>
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# include <sysdep.h>
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time_t
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time (time_t *t)
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{
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INTERNAL_SYSCALL_DECL (err);
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return INTERNAL_SYSCALL (time, err, 1, t);
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}
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#endif
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