1/* $Id: sunos_asm.S,v 1.1.1.1 2007-08-03 18:52:17 $
2 * sunos_asm.S: SunOS system calls which must have a low-level
3 *              entry point to operate correctly.
4 *
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
6 *
7 * Based upon preliminary work which is:
8 *
9 * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
10 */
11
12#include <asm/ptrace.h>
13
14	.text
15	.align 4
16
17	/* When calling ret_sys_call, %o0 should contain the same
18	 * value as in [%sp + STACKFRAME_SZ + PT_I0] */
19
20	/* SunOS getpid() returns pid in %o0 and ppid in %o1 */
21	.globl	sunos_getpid
22sunos_getpid:
23	call	sys_getppid
24	 nop
25
26	call	sys_getpid
27	 st	%o0, [%sp + STACKFRAME_SZ + PT_I1]
28
29	b	ret_sys_call
30	 st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
31
32	/* SunOS getuid() returns uid in %o0 and euid in %o1 */
33	.globl	sunos_getuid
34sunos_getuid:
35	call	sys_geteuid16
36	 nop
37
38	call	sys_getuid16
39	 st	%o0, [%sp + STACKFRAME_SZ + PT_I1]
40
41	b	ret_sys_call
42	 st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
43
44	/* SunOS getgid() returns gid in %o0 and egid in %o1 */
45	.globl	sunos_getgid
46sunos_getgid:
47	call	sys_getegid16
48	 nop
49
50	call	sys_getgid16
51	 st	%o0, [%sp + STACKFRAME_SZ + PT_I1]
52
53	b	ret_sys_call
54	 st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
55
56	/* SunOS's execv() call only specifies the argv argument, the
57	 * environment settings are the same as the calling processes.
58	 */
59	.globl	sunos_execv
60sunos_execv:
61	st	%g0, [%sp + STACKFRAME_SZ + PT_I2]
62
63	call	sparc_execve
64	 add	%sp, STACKFRAME_SZ, %o0
65
66	b	ret_sys_call
67	 ld	[%sp + STACKFRAME_SZ + PT_I0], %o0
68