From 5f018d07981bc22519eb854f6b4dbffcb76e6797 Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Fri, 7 Jun 2019 11:45:39 +1000
Subject: [PATCH] Tools: scripts: add dumpstack

Given a pid this script attempts to dump a stack trace of that process
to stderr
---
 Tools/scripts/dumpstack | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100755 Tools/scripts/dumpstack

diff --git a/Tools/scripts/dumpstack b/Tools/scripts/dumpstack
new file mode 100755
index 0000000000..fe9a0168bc
--- /dev/null
+++ b/Tools/scripts/dumpstack
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# we want everything on stderr, so the program is not disturbed
+exec 1>&2
+
+PID=$1
+TMPFILE=/tmp/gdb.$$
+cat << EOF  > $TMPFILE
+set height 0
+bt full
+thread apply all bt full
+quit
+EOF
+gdb -batch -x $TMPFILE --pid $PID < /dev/null 2>&1
+/bin/rm -f $TMPFILE