1 /* Copyright (C) 1991-1997,2000,2002,2004,2005,2011,2012
2 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
21 #include <bits/errno.h>
26 # include <dl-sysdep.h> /* Defines RTLD_PRIVATE_ERRNO. */
29 .globl C_SYMBOL_NAME(errno)
33 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
34 /* We translate the system's EWOULDBLOCK error into EAGAIN.
35 The GNU C library always defines EWOULDBLOCK==EAGAIN.
36 EWOULDBLOCK_sys is the original number. */
37 cmpl $EWOULDBLOCK_sys, %eax /* Is it the old EWOULDBLOCK? */
38 jne notb /* Branch if not. */
39 movl $EAGAIN, %eax /* Yes; translate it to EAGAIN. */
43 # ifndef NO_TLS_DIRECT_SEG_REFS
44 movl %eax, %gs:C_SYMBOL_NAME(errno@NTPOFF)
47 movl %eax, C_SYMBOL_NAME(errno@NTPOFF)(%ecx)
50 /* The caller has pushed %ebx and then set it up to
51 point to the GOT before calling us through the PLT. */
52 movl C_SYMBOL_NAME(errno@GOTNTPOFF)(%ebx), %ecx
54 /* Pop %ebx value saved before jumping here. */
56 # ifndef NO_TLS_DIRECT_SEG_REFS
60 movl %eax, %gs:0(%ecx)
66 #undef __syscall_error