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[PATCH] ptrace: make pid of child process available for PTRACE_EVENT_VFORK_DONE

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When delivering PTRACE_EVENT_VFORK_DONE, provide pid of the child process
when tracer calls ptrace(PTRACE_GETEVENTMSG).  This is already
(accidentally) available when the tracer is tracing VFORK in addition to
VFORK_DONE.

Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Daniel Jacobowitz <dan@debian.org>
Cc: Albert Cahalan <acahalan@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Chuck Ebbert 2006-08-05 12:14:11 -07:00 committed by Linus Torvalds
parent f9abd1ace4
commit 9f59ce5d0e
1 changed files with 3 additions and 1 deletions
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4
kernel/fork.c
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@ -1387,9 +1387,11 @@ long do_fork(unsigned long clone_flags,
if (clone_flags & CLONE_VFORK) { if (clone_flags & CLONE_VFORK) {
wait_for_completion(&vfork); wait_for_completion(&vfork);
if (unlikely (current->ptrace & PT_TRACE_VFORK_DONE)) if (unlikely (current->ptrace & PT_TRACE_VFORK_DONE)) {
current->ptrace_message = nr;
ptrace_notify ((PTRACE_EVENT_VFORK_DONE << 8) | SIGTRAP); ptrace_notify ((PTRACE_EVENT_VFORK_DONE << 8) | SIGTRAP);
} }
}
} else { } else {
free_pid(pid); free_pid(pid);
nr = PTR_ERR(p); nr = PTR_ERR(p);