Committed a simple dtrace script that tracks

process termination, which can be useful to track
debugserver's delivery of signals.

llvm-svn: 162104

1 files changed, 18 insertions, 0 deletions

diff --git a/lldb/tools/debugserver/scripts/diagnose-termination.d b/lldb/tools/debugserver/scripts/diagnose-termination.d
new file mode 100644
index 00000000000..d216c975003
--- /dev/null
+++ b/lldb/tools/debugserver/scripts/diagnose-termination.d
@@ -0,0 +1,18 @@
+fbt::exception_deliver:entry
+{
+   printf("pid %d got an exception of type %d\n", pid, arg1);
+   stack();
+   ustack();
+}
+
+syscall::kill:entry
+{
+   printf("pid %d called kill(%d, %d)\n", pid, arg0, arg1);
+   ustack();
+}
+
+syscall::__pthread_kill:entry
+{
+   printf("pid %d called pthread_kill(%p, %d)\n", pid, arg0, arg1);
+   ustack();
+}