From d767c6bea1c292358498a0a7093a75361ed3db26 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sun, 23 Oct 2022 23:26:31 +0200
Subject: [PATCH] gitlab-ci: Fix llvm-symbolizer

Newer versions of llvm-symbolizer require libxml2 themselves. Running
a test program with LD_LIBRARY_PATH set to .libs makes llvm-symbolizer
pick up the tested development version of libxml2 which breaks
completely if the build is instrumented with ASan. Add a wrapper script
that invokes llvm-symbolizer with an empty LD_LIBRARY_PATH.
---
 .gitlab-ci.yml             | 1 +
 .gitlab-ci/llvm-symbolizer | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100755 .gitlab-ci/llvm-symbolizer

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 822f31bb..dc2d4092 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -41,6 +41,7 @@ clang:asan:
     # LeakSanitizer requires SYS_CAP_PTRACE
     ASAN_OPTIONS: "detect_leaks=0"
     UBSAN_OPTIONS: "print_stacktrace=1"
+    ASAN_SYMBOLIZER_PATH: "$CI_PROJECT_DIR/.gitlab-ci/llvm-symbolizer"
 
 # Disabled, MSan seems broken on Ubntu 22.04
 .clang:msan:
diff --git a/.gitlab-ci/llvm-symbolizer b/.gitlab-ci/llvm-symbolizer
new file mode 100755
index 00000000..cfc85e8d
--- /dev/null
+++ b/.gitlab-ci/llvm-symbolizer
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Newer versions of llvm-symbolizer require libxml2 themselves. Running
+# a test program with LD_LIBRARY_PATH set to .libs makes llvm-symbolizer
+# pick up the tested development version of libxml2 which breaks
+# completely if the build is instrumented with ASan. This wrapper script
+# invokes llvm-symbolizer with an empty LD_LIBRARY_PATH.
+
+LD_LIBRARY_PATH='' llvm-symbolizer "$@"