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authorChristoph Hellwig <hch@lst.de>2007-10-16 01:26:37 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:04 -0700
commit0ac15559150a20d39d381a6be44cdea373584222 (patch)
tree10be83ffe3197f029beffd242b7ddf21dcc25a35 /kernel
parentdab8f4963ae0a79b945b8ed297e30d390a9d9f50 (diff)
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m32r: convert to generic sys_ptrace
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/ptrace.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 0870523..a73ebd3 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -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;
}