diff options
Diffstat (limited to 'sysdeps/unix/i386/syscall.S')
| -rw-r--r-- | sysdeps/unix/i386/syscall.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/unix/i386/syscall.S b/sysdeps/unix/i386/syscall.S new file mode 100644 index 0000000000..5241ee4ac1 --- /dev/null +++ b/sysdeps/unix/i386/syscall.S @@ -0,0 +1,28 @@ +/* Copyright (C) 1993 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> + +.globl syscall_error +ENTRY (syscall) + popl %ecx /* Pop return address into %ecx. */ + popl %eax /* Pop syscall number into %eax. */ + pushl %ecx /* Push back return address. */ + .byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- gas bug */ + jb syscall_error + ret |