1 /* Copyright (C) 1991,92,93,94,95,96,97,98 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
21 #include <bits/errno.h>
23 .globl C_SYMBOL_NAME(errno)
32 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
33 /* We translate the system's EWOULDBLOCK error into EAGAIN.
34 The GNU C library always defines EWOULDBLOCK==EAGAIN.
35 EWOULDBLOCK_sys is the original number. */
36 cmp r0, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK? */
37 moveq r0, $EAGAIN /* Yes; translate it to EAGAIN. */
43 #ifdef _LIBC_REENTRANT
45 /* put another copy of r0 at a specific errno location */
46 bl C_SYMBOL_NAME(__errno_location)
52 @ we have to establish our PIC register
57 @ store a copy in _errno_loc
59 #ifdef _LIBC_REENTRANT
60 @ and another copy in thread copy of _errno_loc
62 bl __errno_location(PLT)
67 1: .word _GLOBAL_OFFSET_TABLE_ - 0b - 4
68 2: .word C_SYMBOL_NAME(errno)(GOT)
72 RETINSTR(mov, pc, r14)
75 _errno_loc: .long C_SYMBOL_NAME(errno)
78 #undef __syscall_error