1 /* $Id: sunos_asm.S,v 1.15 2000/01/11 17:33:21 jj Exp $
2 * sunos_asm.S: SunOS system calls which must have a low-level
3 * entry point to operate correctly.
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
7 * Based upon preliminary work which is:
9 * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
12 #include <asm/cprefix.h>
13 #include <asm/ptrace.h>
18 /* When calling ret_sys_call, %o0 should contain the same
19 * value as in [%sp + STACKFRAME_SZ + PT_I0] */
21 /* SunOS getpid() returns pid in %o0 and ppid in %o1 */
22 .globl C_LABEL(sunos_getpid)
23 C_LABEL(sunos_getpid):
24 call C_LABEL(sys_getppid)
27 call C_LABEL(sys_getpid)
28 st %o0, [%sp + STACKFRAME_SZ + PT_I1]
30 b C_LABEL(ret_sys_call)
31 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
33 /* SunOS getuid() returns uid in %o0 and euid in %o1 */
34 .globl C_LABEL(sunos_getuid)
35 C_LABEL(sunos_getuid):
36 call C_LABEL(sys_geteuid16)
39 call C_LABEL(sys_getuid16)
40 st %o0, [%sp + STACKFRAME_SZ + PT_I1]
42 b C_LABEL(ret_sys_call)
43 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
45 /* SunOS getgid() returns gid in %o0 and egid in %o1 */
46 .globl C_LABEL(sunos_getgid)
47 C_LABEL(sunos_getgid):
48 call C_LABEL(sys_getegid16)
51 call C_LABEL(sys_getgid16)
52 st %o0, [%sp + STACKFRAME_SZ + PT_I1]
54 b C_LABEL(ret_sys_call)
55 st %o0, [%sp + STACKFRAME_SZ + PT_I0]
57 /* SunOS's execv() call only specifies the argv argument, the
58 * environment settings are the same as the calling processes.
60 .globl C_LABEL(sunos_execv)
62 st %g0, [%sp + STACKFRAME_SZ + PT_I2]
64 call C_LABEL(sparc_execve)
65 add %sp, STACKFRAME_SZ, %o0
67 b C_LABEL(ret_sys_call)
68 ld [%sp + STACKFRAME_SZ + PT_I0], %o0