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Implement ptrace.

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This commit is contained in:
skrll 2007-12-02 15:48:47 +00:00
parent 25f8c0149e
commit fd903b1729
1 changed files with 23 additions and 5 deletions
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28
lib/libc/arch/hppa/sys/ptrace.S
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@ -1,4 +1,4 @@
/* $NetBSD: ptrace.S,v 1.4 2004/07/01 06:50:04 skrll Exp $ */
/* $NetBSD: ptrace.S,v 1.5 2007/12/02 15:48:47 skrll Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -41,8 +41,26 @@
.import __cerror, code
/* XXX - this is unimplemented at this time. */
ENTRY(ptrace, 0)
ldi EINVAL, %t1
b,n __cerror
/*
* int ptrace(int request, pid_t pid, void * addr, int data);
*/
ENTRY(ptrace, HPPA_FRAME_SIZE)
stw %rp, HPPA_FRAME_CRP(%sp)
stw %arg0, HPPA_FRAME_ARG(0)(%sp)
stw %arg1, HPPA_FRAME_ARG(1)(%sp)
stw %arg2, HPPA_FRAME_ARG(2)(%sp)
stw %arg3, HPPA_FRAME_ARG(3)(%sp)
ldo HPPA_FRAME_SIZE(%sp),%sp
bl __cerror, %rp
copy %r0, %t1
ldo -HPPA_FRAME_SIZE(%sp), %sp
ldw HPPA_FRAME_ARG(0)(%sp), %arg0
ldw HPPA_FRAME_ARG(1)(%sp), %arg1
ldw HPPA_FRAME_ARG(2)(%sp), %arg2
ldw HPPA_FRAME_ARG(3)(%sp), %arg3
ldw HPPA_FRAME_CRP(%sp), %rp
SYSCALL(ptrace)
bv,n %r0(%rp)
EXIT(ptrace)