| /* $Id: sunos_asm.S,v 1.15 2000/01/11 17:33:21 jj Exp $ |
| * sunos_asm.S: SunOS system calls which must have a low-level |
| * entry point to operate correctly. |
| * |
| * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| * |
| * Based upon preliminary work which is: |
| * |
| * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu) |
| */ |
| |
| #include <asm/ptrace.h> |
| |
| .text |
| .align 4 |
| |
| /* When calling ret_sys_call, %o0 should contain the same |
| * value as in [%sp + STACKFRAME_SZ + PT_I0] */ |
| |
| /* SunOS getpid() returns pid in %o0 and ppid in %o1 */ |
| .globl sunos_getpid |
| sunos_getpid: |
| call sys_getppid |
| nop |
| |
| call sys_getpid |
| st %o0, [%sp + STACKFRAME_SZ + PT_I1] |
| |
| b ret_sys_call |
| st %o0, [%sp + STACKFRAME_SZ + PT_I0] |
| |
| /* SunOS getuid() returns uid in %o0 and euid in %o1 */ |
| .globl sunos_getuid |
| sunos_getuid: |
| call sys_geteuid16 |
| nop |
| |
| call sys_getuid16 |
| st %o0, [%sp + STACKFRAME_SZ + PT_I1] |
| |
| b ret_sys_call |
| st %o0, [%sp + STACKFRAME_SZ + PT_I0] |
| |
| /* SunOS getgid() returns gid in %o0 and egid in %o1 */ |
| .globl sunos_getgid |
| sunos_getgid: |
| call sys_getegid16 |
| nop |
| |
| call sys_getgid16 |
| st %o0, [%sp + STACKFRAME_SZ + PT_I1] |
| |
| b ret_sys_call |
| st %o0, [%sp + STACKFRAME_SZ + PT_I0] |
| |
| /* SunOS's execv() call only specifies the argv argument, the |
| * environment settings are the same as the calling processes. |
| */ |
| .globl sunos_execv |
| sunos_execv: |
| st %g0, [%sp + STACKFRAME_SZ + PT_I2] |
| |
| call sparc_execve |
| add %sp, STACKFRAME_SZ, %o0 |
| |
| b ret_sys_call |
| ld [%sp + STACKFRAME_SZ + PT_I0], %o0 |