From 546f65ffdb4c87724441d36d47215876f0ae5ed9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@sury.org>
Date: Mon, 18 Nov 2019 23:17:37 +0800
Subject: [PATCH] Dump the backtrace to stdout when core is found in systest
 directory

(cherry picked from commit 512dadc8d10151530ca94b10e8fb9ee7170a036f)
---
 bin/tests/system/run.gdb |  1 +
 bin/tests/system/run.sh  | 12 ++++++++++++
 util/copyrights          |  1 +
 3 files changed, 14 insertions(+)
 create mode 100644 bin/tests/system/run.gdb

diff --git a/bin/tests/system/run.gdb b/bin/tests/system/run.gdb
new file mode 100644
index 0000000000..60981e1e9b
--- /dev/null
+++ b/bin/tests/system/run.gdb
@@ -0,0 +1 @@
+thread apply all bt full
diff --git a/bin/tests/system/run.sh b/bin/tests/system/run.sh
index 4d8f53b198..90dbd9a9df 100755
--- a/bin/tests/system/run.sh
+++ b/bin/tests/system/run.sh
@@ -200,6 +200,18 @@ else
         echoinfo "I:$systest:Test claims success despite crashes: $core_dumps"
         echofail "R:$systest:FAIL"
         # Do not clean up - we need the evidence.
+	find "$systest/" -name 'core*' | while read -r coredump; do
+		SYSTESTDIR="$systest"
+		echoinfo "D:$systest:backtrace from $coredump start"
+		binary="`gdb --batch --core="$coredump" | sed -ne "s/Core was generated by .//;s/ .*'.$//p;"`"
+		"$TOP/libtool" --mode=execute gdb \
+			       --batch \
+			       --command=run.gdb \
+			       --core="$coredump" \
+			       -- \
+			       "$binary"
+		echoinfo "D:$systest:backtrace from $coredump end"
+	done
     elif [ $assertion_failures -ne 0 ]; then
         echoinfo "I:$systest:Test claims success despite $assertion_failures assertion failure(s)"
         echofail "R:$systest:FAIL"
diff --git a/util/copyrights b/util/copyrights
index 3ce2a29714..1d103cd1a7 100644
--- a/util/copyrights
+++ b/util/copyrights
@@ -2193,6 +2193,7 @@
 ./bin/tests/system/rsabigexponent/prereq.sh	SH	2012,2014,2016,2018,2019,2020
 ./bin/tests/system/rsabigexponent/setup.sh	SH	2012,2014,2016,2018,2019,2020
 ./bin/tests/system/rsabigexponent/tests.sh	SH	2012,2016,2018,2019,2020
+./bin/tests/system/run.gdb			X	2019,2020
 ./bin/tests/system/run.sh			SH	2000,2001,2004,2007,2010,2012,2014,2015,2016,2017,2018,2019,2020
 ./bin/tests/system/runall.sh			SH	2000,2001,2004,2007,2010,2011,2012,2014,2015,2016,2018,2019,2020
 ./bin/tests/system/runsequential.sh		SH	2018,2019,2020