1 files changed, 31 insertions, 0 deletions
diff --git a/lib/tsan/check_memcpy.sh b/lib/tsan/check_memcpy.sh
new file mode 100755
index 0000000000000..101df1166b7ce
--- /dev/null
+++ b/lib/tsan/check_memcpy.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Ensure that tsan runtime does not contain compiler-emitted memcpy and memset calls.
+
+set -eu
+
+ROOTDIR=$(dirname $0)
+TEST_DIR=$ROOTDIR/../../test/tsan
+
+: ${CXX:=clang++}
+CFLAGS="-fsanitize=thread -fPIE -O1 -g"
+LDFLAGS="-pie -lpthread -ldl -lrt -lm -Wl,--whole-archive $ROOTDIR/rtl/libtsan.a -Wl,--no-whole-archive"
+
+SRC=$TEST_DIR/simple_race.cc
+OBJ=$SRC.o
+EXE=$SRC.exe
+$CXX $SRC $CFLAGS -c -o $OBJ
+$CXX $OBJ $LDFLAGS -o $EXE
+
+NCALL=$(objdump -d $EXE | egrep "callq .*<__interceptor_mem(cpy|set)>" | wc -l)
+if [ "$NCALL" != "0" ]; then
+  echo FAIL: found $NCALL memcpy/memset calls
+  exit 1
+fi
+
+# tail calls
+NCALL=$(objdump -d $EXE | egrep "jmpq .*<__interceptor_mem(cpy|set)>" | wc -l)
+if [ "$NCALL" != "0" ]; then
+  echo FAIL: found $NCALL memcpy/memset calls
+  exit 1
+fi