diff options
Diffstat (limited to 'libgloss/mep/syscalls.S')
| -rw-r--r-- | libgloss/mep/syscalls.S | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libgloss/mep/syscalls.S b/libgloss/mep/syscalls.S new file mode 100644 index 0000000..2c3dfc2 --- /dev/null +++ b/libgloss/mep/syscalls.S @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2003 Red Hat, Inc. All rights reserved. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the BSD + * License. This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY expressed or implied, including the implied + * warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy + * of this license is available at http://www.opensource.org/licenses. Any + * Red Hat trademarks that are incorporated in the source code or documentation + * are not subject to the BSD License and may only be used or replicated with + * the express permission of Red Hat, Inc. + */ +#include "syscall.h" + +/* Return ABI: $1 is errno, $0 is return value. */ + +#define S(n) \ + .global n ; .weak n ; n: ; \ + .2byte 0x7800 | ((SYS_##n & 0xe) << 7) | ((SYS_##n & 1) << 4) ; bra sysret + + .text + +#define SYS___mep_write SYS_write +#define SYS___mep_read SYS_read +#define SYS__Sid_config SYS_reconfig + +S(open) +S(close) +S(__mep_read) +S(__mep_write) +S(lseek) +S(unlink) +S(getpid) +S(kill) +S(fstat) + +/* ARGV support. */ +S(argvlen) +S(argv) + +/* These are extras added for one reason or another. */ +S(chdir) +S(stat) +S(chmod) +S(utime) +S(time) +S(gettimeofday) +S(times) +S(link) +S(_Sid_config) + +sysret: + add3 $sp, $sp, -12 + sw $0, 0($sp) + sw $1, 4($sp) + ldc $2, $lp + sw $2, 8($sp) + bsr __errno + lw $1, 4($sp) + sw $1, ($0) + lw $0, 0($sp) + lw $2, 8($sp) + stc $2, $lp + add3 $sp, $sp, 12 + ret |