mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
65 lines
1.9 KiB
ArmAsm
65 lines
1.9 KiB
ArmAsm
/* Copyright (C) 1991-2017 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 <sysdep.h>
|
|
#define _ERRNO_H
|
|
#include <bits/errno.h>
|
|
|
|
#if IS_IN (rtld)
|
|
# include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
|
|
#endif
|
|
|
|
.globl C_SYMBOL_NAME(errno)
|
|
.globl syscall_error
|
|
|
|
__syscall_error:
|
|
#if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
|
|
/* We translate the system's EWOULDBLOCK error into EAGAIN.
|
|
The GNU C library always defines EWOULDBLOCK==EAGAIN.
|
|
EWOULDBLOCK_sys is the original number. */
|
|
cmpl $EWOULDBLOCK_sys, %eax /* Is it the old EWOULDBLOCK? */
|
|
jne notb /* Branch if not. */
|
|
movl $EAGAIN, %eax /* Yes; translate it to EAGAIN. */
|
|
notb:
|
|
#endif
|
|
#ifndef PIC
|
|
# ifndef NO_TLS_DIRECT_SEG_REFS
|
|
movl %eax, %gs:C_SYMBOL_NAME(errno@NTPOFF)
|
|
# else
|
|
movl %gs:0, %ecx
|
|
movl %eax, C_SYMBOL_NAME(errno@NTPOFF)(%ecx)
|
|
# endif
|
|
#else
|
|
/* The caller has pushed %ebx and then set it up to
|
|
point to the GOT before calling us through the PLT. */
|
|
movl C_SYMBOL_NAME(errno@GOTNTPOFF)(%ebx), %ecx
|
|
|
|
/* Pop %ebx value saved before jumping here. */
|
|
popl %ebx
|
|
# ifndef NO_TLS_DIRECT_SEG_REFS
|
|
addl %gs:0, %ecx
|
|
movl %eax, (%ecx)
|
|
# else
|
|
movl %eax, %gs:0(%ecx)
|
|
# endif
|
|
#endif
|
|
movl $-1, %eax
|
|
ret
|
|
|
|
#undef __syscall_error
|
|
END (__syscall_error)
|