diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/am33/syscall.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/am33/syscall.S | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/am33/syscall.S b/ports/sysdeps/unix/sysv/linux/am33/syscall.S new file mode 100644 index 0000000000..63fa6ddcd4 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/am33/syscall.S @@ -0,0 +1,42 @@ +/* Copyright (C) 1995, 1996, 1998, 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Alexandre Oliva <aoliva@redhat.com>. + Based on ../i386/syscall.S. + + 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. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +/* Please consult the file sysdeps/unix/sysv/linux/am33/sysdep.h for + more information about the value -126 used below.*/ + + .text +ENTRY (syscall) + movm [d2,d3,a2,a3],(sp) /* Save register contents. */ + mov d1,a0 + mov (28,sp),d1 + mov (32,sp),a3 + mov (36,sp),a2 + mov (40,sp),d3 + mov (44,sp),d2 + syscall 0 /* Do the system call. */ + movm (sp),[d2,d3,a2,a3] /* Restore register contents. */ + cmp -126,d0 /* Check for error. */ + bls L(pseudo_end) + jmp SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ +L(pseudo_end): + ret /* Return to caller. */ + +PSEUDO_END (syscall) |