diff options
Diffstat (limited to 'sysdeps/unix/sysv/i386/linux/sysdep.S')
| -rw-r--r-- | sysdeps/unix/sysv/i386/linux/sysdep.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/i386/linux/sysdep.S b/sysdeps/unix/sysv/i386/linux/sysdep.S new file mode 100644 index 0000000000..ed3a2782a9 --- /dev/null +++ b/sysdeps/unix/sysv/i386/linux/sysdep.S @@ -0,0 +1,38 @@ +/* Copyright (C) 1992, 1993, 1994 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <sysdep.h> +#define _ERRNO_H +#include <errnos.h> + +/* We jump here when a system call gets an error. + The error number is negated in %eax. */ +.globl syscall_error +syscall_error: + negl %eax /* Make it positive. */ +#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 %eax, $EWOULDBLOCK_sys /* Is it the old EWOULDBLOCK? */ + jne 0f /* Branch if not. */ + move $EAGAIN, %eax /* Yes; translate it to EAGAIN. */ +#endif +0: movl %eax, _errno /* Store it in `errno'. */ + move $-1, %eax /* Return -1. */ + ret |