From 05dfac28e15721d15613e4de7cd2bef64e6ecfe9 Mon Sep 17 00:00:00 2001
From: Pauli <suokkos@gmail.com>
Date: Thu, 5 Jul 2018 17:54:49 +0300
Subject: [PATCH] Automatically preload asan runtime library

---
 package/linux/dfhack | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/package/linux/dfhack b/package/linux/dfhack
index 008f691cf..d0c70765b 100755
--- a/package/linux/dfhack
+++ b/package/linux/dfhack
@@ -61,7 +61,12 @@ fi
 
 export LD_LIBRARY_PATH="./hack/libs:./hack:$LD_LIBRARY_PATH"
 
-PRELOAD_LIB="${PRELOAD_LIB:+$PRELOAD_LIB:}./hack/libdfhack.so"
+LIB="./hack/libdfhack.so"
+LIBSAN=""
+if which objdump > /dev/null; then
+  LIBSAN="$(objdump -p $LIB | sed -n 's/^.*NEEDED.*\(lib[a-z]san[a-z.0-9]*\).*$/\1/p' | head -n1):"
+fi
+PRELOAD_LIB="${PRELOAD_LIB:+$PRELOAD_LIB:}${LIBSAN}${LIB}"
 
 setarch_arch=$(cat hack/dfhack_setarch.txt || printf i386)