src/compiler-rt/lib/tsan/check_memcpy.sh

   1 #!/bin/bash
   2
   3 # Ensure that tsan runtime does not contain compiler-emitted memcpy and memset calls.
   4
   5 set -eu
   6
   7 ROOTDIR=$(dirname $0)
   8 TEST_DIR=$ROOTDIR/../../test/tsan
   9
  10 : ${CXX:=clang++}
  11 CFLAGS="-fsanitize=thread -fPIE -O1 -g"
  12 LDFLAGS="-pie -lpthread -ldl -lrt -lm -Wl,--whole-archive $ROOTDIR/rtl/libtsan.a -Wl,--no-whole-archive"
  13
  14 SRC=$TEST_DIR/simple_race.cc
  15 OBJ=$SRC.o
  16 EXE=$SRC.exe
  17 $CXX $SRC $CFLAGS -c -o $OBJ
  18 $CXX $OBJ $LDFLAGS -o $EXE
  19
  20 NCALL=$(objdump -d $EXE | egrep "callq .*<__interceptor_mem(cpy|set)>" | wc -l)
  21 if [ "$NCALL" != "0" ]; then
  22   echo FAIL: found $NCALL memcpy/memset calls
  23   exit 1
  24 fi
  25
  26 # tail calls
  27 NCALL=$(objdump -d $EXE | egrep "jmpq .*<__interceptor_mem(cpy|set)>" | wc -l)
  28 if [ "$NCALL" != "0" ]; then
  29   echo FAIL: found $NCALL memcpy/memset calls
  30   exit 1
  31 fi