From b84aa7e42296a4dd7e279d8c6a2fad2014c99ff0 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Sat, 17 Aug 2024 17:29:20 -0400
Subject: use decode_stacktrace.sh when available

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---
 build-test-kernel |  3 ---
 lib/libktest.sh   | 12 +++++++++++-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/build-test-kernel b/build-test-kernel
index f85adbb..61b88cd 100755
--- a/build-test-kernel
+++ b/build-test-kernel
@@ -16,9 +16,6 @@ checkdep bison
 checkdep flex
 checkdep bc
 
-ktest_kernel_source="."	# dir of kernel source
-			#       set with: -k <path>
-			#       defaults: current directory
 ktest_njobs=$(nproc)
 ktest_precise=false
 ktest_compiler=gcc
diff --git a/lib/libktest.sh b/lib/libktest.sh
index 6c0be8f..92cd2b1 100644
--- a/lib/libktest.sh
+++ b/lib/libktest.sh
@@ -12,6 +12,10 @@ ktest_root_image=""	# virtual machine root filesystem
                         #       set with: -i <path>
                         #       defaults: /var/lib/ktest/root
                         #       auto-override: $HOME/.ktest/root
+ktest_kernel_source="."	# dir of kernel source
+			#       set with: -k <path>
+			#       defaults: current directory
+ktest_kernel_build=
 ktest_out="./ktest-out"	# dir for test output (logs, code coverage, etc.)
 
 ktest_priority=0	# hint for how long test should run
@@ -447,5 +451,11 @@ start_vm()
 
     set +o errexit
     save_env
-    "${qemu_cmd[@]}"
+  
+    local decode_stacktrace=$ktest_kernel_source/scripts/decode_stacktrace.sh
+    if [[ -f $decode_stacktrace && -d $ktest_kernel_build ]]; then
+	"${qemu_cmd[@]}"|bash "$decode_stacktrace" "$ktest_kernel_build/vmlinux"
+    else
+	"${qemu_cmd[@]}"
+    fi
 }
-- 
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