1d234146c0
SYSCALL_PIC_SETUP before jumping to syscall_error. * sysdeps/unix/i386/sysdep.h (SYSCALL_PIC_SETUP): New macro. (PSEUDO): Use it before jumping to syscall_error. * sysdeps/unix/i386/sysdep.S [! PIC]: Don't find GOT address; expect it in %ebx on entry. Pop old %ebx value off stack after using it.
53 lines
1.7 KiB
ArmAsm
53 lines
1.7 KiB
ArmAsm
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <sysdep.h>
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#define _ERRNO_H
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#include <errnos.h>
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.globl C_SYMBOL_NAME(errno)
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.globl syscall_error
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#undef syscall_error
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#ifdef NO_UNDERSCORES
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__syscall_error:
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#else
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syscall_error:
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#endif
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#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
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/* We translate the system's EWOULDBLOCK error into EAGAIN.
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The GNU C library always defines EWOULDBLOCK==EAGAIN.
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EWOULDBLOCK_sys is the original number. */
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cmpl $EWOULDBLOCK_sys, %eax /* Is it the old EWOULDBLOCK? */
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jne notb /* Branch if not. */
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movl $EAGAIN, %eax /* Yes; translate it to EAGAIN. */
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#endif
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notb:
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#ifndef PIC
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movl %eax, C_SYMBOL_NAME(errno)
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#else
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/* The caller has pushed %ebx and then set it up to
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point to the GOT before calling us through the PLT. */
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movl C_SYMBOL_NAME(errno@GOT)(%ebx), %ecx
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/* Pop %ebx value saved before jumping here. */
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popl %ebx
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movl %eax, (%ecx)
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#endif
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movl $-1, %eax
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ret
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