| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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. |
| 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 |
| 22 | sunos_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 |
| 34 | sunos_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 |
| 46 | sunos_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 |
| 60 | sunos_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 |