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(_libc_vdso_platform_setup): If vDSO is not available point __vdso_gettimeofday to the vsyscall. * sysdeps/unix/sysv/linux/x86_64/gettimeofday.S [SHARED]: Use __vdso_gettimeofday instead of vsyscall.
50 lines
1.5 KiB
ArmAsm
50 lines
1.5 KiB
ArmAsm
/* Copyright (C) 2002, 2003, 2007 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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/* For the calculation see asm/vsyscall.h. */
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#define VSYSCALL_ADDR_vgettimeofday 0xffffffffff600000
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ENTRY (__gettimeofday)
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/* Align stack. */
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sub $0x8, %rsp
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cfi_adjust_cfa_offset(8)
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#ifdef SHARED
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movq __vdso_gettimeofday(%rip), %rax
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PTR_DEMANGLE (%rax)
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#else
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movq $VSYSCALL_ADDR_vgettimeofday, %rax
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#endif
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callq *%rax
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/* Check error return. */
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cmpl $-4095, %eax
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jae SYSCALL_ERROR_LABEL
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L(pseudo_end):
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add $0x8, %rsp
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cfi_adjust_cfa_offset(-8)
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ret
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PSEUDO_END(__gettimeofday)
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strong_alias (__gettimeofday, __gettimeofday_internal)
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weak_alias (__gettimeofday, gettimeofday)
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