1 /* Copyright (C) 2001, 2002 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 Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the 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 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #include <bits/errno.h>
26 .globl C_SYMBOL_NAME(errno)
35 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
36 /* We translate the system's EWOULDBLOCK error into EAGAIN.
37 The GNU C library always defines EWOULDBLOCK==EAGAIN.
38 EWOULDBLOCK_sys is the original number. */
39 cmpq $EWOULDBLOCK_sys, %rax /* Is it the old EWOULDBLOCK? */
40 jne notb /* Branch if not. */
41 movq $EAGAIN, %rax /* Yes; translate it to EAGAIN. */
44 #if USE_TLS && HAVE___THREAD
45 movq C_SYMBOL_NAME(errno)@GOTTPOFF(%rip), %rcx
46 movl %eax, %fs:0(%rcx)
48 # ifndef _LIBC_REENTRANT
49 movl %eax, C_SYMBOL_NAME(errno)
52 PUSH_ERRNO_LOCATION_RETURN
53 call BP_SYM (__errno_location)
54 POP_ERRNO_LOCATION_RETURN
59 # ifndef _LIBC_REENTRANT
60 movq C_SYMBOL_NAME(errno)@GOTPCREL(%rip), %rcx
64 PUSH_ERRNO_LOCATION_RETURN
65 call C_SYMBOL_NAME (BP_SYM (__errno_location)@PLT)
66 POP_ERRNO_LOCATION_RETURN
74 #undef __syscall_error