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m32r: convert to generic sys_ptrace

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Convert m32r to the generic sys_ptrace.  The conversion requires an
architecture hook after ptrace_attach which this patch adds.  The hook
will also be needed for a conersion of ia64 to the generic ptrace code.

Thanks to Hirokazu Takata for fixing a bug in the first version of this
code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2007-10-16 01:26:37 -07:00
committed by Linus Torvalds
parent dab8f4963a
commit 0ac1555915
3 changed files with 17 additions and 40 deletions
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10
kernel/ptrace.c
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@@ -453,6 +453,10 @@ struct task_struct *ptrace_get_task_struct(pid_t pid)
return child;
}
#ifndef arch_ptrace_attach
#define arch_ptrace_attach(child) do { } while (0)
#endif
#ifndef __ARCH_SYS_PTRACE
asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
{
@@ -476,6 +480,12 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data)
if (request == PTRACE_ATTACH) {
ret = ptrace_attach(child);
/*
* Some architectures need to do book-keeping after
* a ptrace attach.
*/
if (!ret)
arch_ptrace_attach(child);
goto out_put_task_struct;
}