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/* $Id: sunos_asm.S,v 1.14 1996/12/04 18:25:48 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/cprefix.h> #include <asm/ptrace.h> .text .align 4 /* When calling ret_sys_call, %o0 should contain the same * value as in [%sp + REGWIN_SZ + PT_I0] */ /* SunOS getpid() returns pid in %o0 and ppid in %o1 */ .globl C_LABEL(sunos_getpid) C_LABEL(sunos_getpid): call C_LABEL(sys_getppid) nop call C_LABEL(sys_getpid) st %o0, [%sp + REGWIN_SZ + PT_I1] b C_LABEL(ret_sys_call) st %o0, [%sp + REGWIN_SZ + PT_I0] /* SunOS getuid() returns uid in %o0 and euid in %o1 */ .globl C_LABEL(sunos_getuid) C_LABEL(sunos_getuid): call C_LABEL(sys_geteuid) nop call C_LABEL(sys_getuid) st %o0, [%sp + REGWIN_SZ + PT_I1] b C_LABEL(ret_sys_call) st %o0, [%sp + REGWIN_SZ + PT_I0] /* SunOS getgid() returns gid in %o0 and egid in %o1 */ .globl C_LABEL(sunos_getgid) C_LABEL(sunos_getgid): call C_LABEL(sys_getegid) nop call C_LABEL(sys_getgid) st %o0, [%sp + REGWIN_SZ + PT_I1] b C_LABEL(ret_sys_call) st %o0, [%sp + REGWIN_SZ + PT_I0] /* SunOS's execv() call only specifies the argv argument, the * environment settings are the same as the calling processes. */ .globl C_LABEL(sunos_execv) C_LABEL(sunos_execv): st %g0, [%sp + REGWIN_SZ + PT_I2] call C_LABEL(sparc_execve) add %sp, REGWIN_SZ, %o0 b C_LABEL(ret_sys_call) ld [%sp + REGWIN_SZ + PT_I0], %o0 |