Makefile_llvm

# For McMini to check data races concerning shared variables, the target
# program must be specially compiled to use LLVM.
# On most Linux distros, LLVM can be installed by adding the following packages:
#   llvm llvm-dev clang
# On Red Hat-based distros, use llvm-devel
#
# To compile the target_file with LLVM, run:
#   make -f Makefile_llvm TEST="path/to/target_file"

CLANG := clang
CLANGXX := clang++
OPT := opt
LLVM_CONFIG := llvm-config

PASS_SRC := test/data-races/llvmDataRacePass.cpp
PASS_SO := test/data-races/llvmDataRacePass.so
LIBOBJS := libmcmini.so

TEST ?= test/data-races/simple-data-race

.PHONY: all clean

all: $(PASS_SO)

# Build the LLVM instrumentation pass shared library
$(PASS_SO): $(PASS_SRC)
	$(CXX) -g3 -O0 -Iinclude -fPIC \
	`$(LLVM_CONFIG) --cxxflags` \
	-shared -o $@ $< \
	`$(LLVM_CONFIG) --ldflags` \
        `$(LLVM_CONFIG) --libs core irreader passes analysis transformutils support` \
	`$(LLVM_CONFIG) --system-libs` \
	-I`$(LLVM_CONFIG) --includedir`

# Compile .c to LLVM IR (Intermediate Representation)
# *.ll is human readable, compiled with -S flag
# *.bc is "bit code", without the -S flag
%.ll: %.c
	$(CLANG) -O0 -g -emit-llvm -c -S $< -o $@

# Instrument bitcode using the LLVM pass
%_mcmini.ll: %.ll $(PASS_SO)
	$(OPT) -load-pass-plugin=`pwd`/$(PASS_SO) \
	       -passes=instrument-mcmini-globals -S $< -o $@

# Link instrumented bitcode to executable
%_mcmini: %_mcmini.ll
	$(CLANGXX) $< $(LIBOBJS) -Iinclude -o $@ -lpthread -lrt -lm -ldl

# Build uninstrumented executable directly from source
%_uninstr: %.c
	$(CLANG) -O0 -g $< -o $@ -lpthread -lrt -lm -ldl

check: all test/data-races/simple-data-race.c
	$(MAKE) -f Makefile_llvm $(addsuffix _mcmini, $(TEST)) 
	./mcmini -m5 ./test/data-races/simple-data-race_mcmini

clean:
	rm -f $(PASS_SO)
	cd test/data-races && rm -f *.ll *_mcmini.ll *_mcmini *_uninstr