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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [arch/] [sparc/] [kernel/] [sunos_asm.S] - Blame information for rev 1765

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1 1275 phoenix 
/* $Id: sunos_asm.S,v 1.1.1.1 2004-04-15 01:33:30 phoenix Exp $
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 * sunos_asm.S: SunOS system calls which must have a low-level
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 *              entry point to operate correctly.
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 *
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 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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 *
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 * Based upon preliminary work which is:
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 *
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 * Copyright (C) 1995 Adrian M. Rodriguez (adrian@remus.rutgers.edu)
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 */
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#include
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#include
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        .text
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        .align 4
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        /* When calling ret_sys_call, %o0 should contain the same
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         * value as in [%sp + STACKFRAME_SZ + PT_I0] */
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        /* SunOS getpid() returns pid in %o0 and ppid in %o1 */
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        .globl  C_LABEL(sunos_getpid)
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C_LABEL(sunos_getpid):
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        call    C_LABEL(sys_getppid)
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         nop
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        call    C_LABEL(sys_getpid)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I1]
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        b       C_LABEL(ret_sys_call)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I0]
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        /* SunOS getuid() returns uid in %o0 and euid in %o1 */
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        .globl  C_LABEL(sunos_getuid)
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C_LABEL(sunos_getuid):
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        call    C_LABEL(sys_geteuid16)
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         nop
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        call    C_LABEL(sys_getuid16)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I1]
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        b       C_LABEL(ret_sys_call)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I0]
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        /* SunOS getgid() returns gid in %o0 and egid in %o1 */
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        .globl  C_LABEL(sunos_getgid)
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C_LABEL(sunos_getgid):
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        call    C_LABEL(sys_getegid16)
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         nop
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        call    C_LABEL(sys_getgid16)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I1]
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        b       C_LABEL(ret_sys_call)
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         st     %o0, [%sp + STACKFRAME_SZ + PT_I0]
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        /* SunOS's execv() call only specifies the argv argument, the
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         * environment settings are the same as the calling processes.
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         */
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        .globl  C_LABEL(sunos_execv)
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C_LABEL(sunos_execv):
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        st      %g0, [%sp + STACKFRAME_SZ + PT_I2]
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        call    C_LABEL(sparc_execve)
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         add    %sp, STACKFRAME_SZ, %o0
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        b       C_LABEL(ret_sys_call)
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         ld     [%sp + STACKFRAME_SZ + PT_I0], %o0

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