mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Tamas K Lengyel
b518013ca1
This target enables integration into oss-fuzz. Changing invalid input return to -1 as values other then 0/-1 are reserved by libfuzzer. Also adding the missing __wrap_vsnprintf wrapper which is required for successful oss-fuzz build. Signed-off-by: Tamas K Lengyel <tamas@tklengyel.com> Acked-by: Jan Beulich <jbeulich@suse.com>
89 lines
2.4 KiB
Makefile
89 lines
2.4 KiB
Makefile
XEN_ROOT=$(CURDIR)/../../..
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include $(XEN_ROOT)/tools/Rules.mk
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.PHONY: x86-insn-fuzz-all
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ifeq ($(CONFIG_X86_64),y)
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x86-insn-fuzz-all: x86-insn-fuzzer.a fuzz-emul.o afl
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else
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x86-insn-fuzz-all:
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endif
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# Add libx86 to the build
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%.c: $(XEN_ROOT)/xen/lib/x86/%.c FORCE
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ln -nsf $< $@
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x86_emulate: FORCE
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mkdir -p $@
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ln -sf $(XEN_ROOT)/xen/arch/x86/$@/*.[ch] $@/
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x86_emulate/%.c: x86_emulate ;
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x86_emulate/%.h: x86_emulate ;
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%.c: $(XEN_ROOT)/tools/tests/x86_emulator/%.c FORCE
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ln -nsf $< $@
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%.h: $(XEN_ROOT)/tools/tests/x86_emulator/%.h FORCE
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ln -nsf $< $@
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CFLAGS += $(CFLAGS_xeninclude) -D__XEN_TOOLS__ -iquote .
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cpuid.o: CFLAGS += -iquote $(XEN_ROOT)/xen/lib/x86
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GCOV_FLAGS := --coverage
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%-cov.o: %.c
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$(CC) -c $(CFLAGS) $(GCOV_FLAGS) $< -o $@
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OBJS := fuzz-emul.o x86-emulate.o
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OBJS += x86_emulate/0f01.o x86_emulate/0fae.o x86_emulate/0fc7.o
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OBJS += x86_emulate/decode.o x86_emulate/fpu.o
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WRAPPED = $(shell sed -n 's,^ *WRAP(\([[:alnum:]_]*\));,\1,p' x86-emulate.h)
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private.h := x86-emulate.h x86_emulate/x86_emulate.h x86_emulate/private.h
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x86-emulate.h: x86_emulate/x86_emulate.h
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x86-emulate.o x86-emulate-cov.o: x86_emulate/x86_emulate.c $(private.h)
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fuzz-emul.o fuzz-emul-cov.o wrappers.o: x86-emulate.h
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$(filter x86_emulate/%.o,$(OBJS)): x86_emulate/%.o: x86_emulate/%.c $(private.h)
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$(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_$*.o) -c -o $@ $< $(APPEND_CFLAGS)
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$(patsubst %.o,%-cov.o,$(filter x86_emulate/%.o,$(OBJS))): x86_emulate/%-cov.o: x86_emulate/%.c $(private.h)
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$(CC) $(CPPFLAGS) $(CFLAGS) $(CFLAGS_$*.o) $(GCOV_FLAGS) -c -o $@ $< $(APPEND_CFLAGS)
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x86-insn-fuzzer.a: $(OBJS) cpuid.o
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$(AR) rc $@ $^
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afl-harness: afl-harness.o $(OBJS) cpuid.o wrappers.o
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$(CC) $(CFLAGS) $(addprefix -Wl$(comma)--wrap=,$(WRAPPED)) $^ -o $@
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afl-harness-cov: afl-harness-cov.o $(patsubst %.o,%-cov.o,$(OBJS)) cpuid.o wrappers.o
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$(CC) $(CFLAGS) $(GCOV_FLAGS) $(addprefix -Wl$(comma)--wrap=,$(WRAPPED)) $^ -o $@
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libfuzzer-harness: $(OBJS) cpuid.o wrappers.o
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$(CC) $(CFLAGS) $(LIB_FUZZING_ENGINE) -fsanitize=fuzzer $(addprefix -Wl$(comma)--wrap=,$(WRAPPED)) $^ -o $@
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# Common targets
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.PHONY: all
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all: x86-insn-fuzz-all
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.PHONY: distclean
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distclean: clean
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.PHONY: clean
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clean:
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rm -f *.a *.o $(DEPS_RM) *.gcda *.gcno *.gcov
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rm -f afl-harness afl-harness-cov libfuzzer-harness
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rm -rf x86_emulate x86-emulate.c x86-emulate.h wrappers.c cpuid.c
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.PHONY: install
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install: all
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.PHONY: uninstall
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.PHONY: afl
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afl: afl-harness
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.PHONY: afl-cov
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afl-cov: afl-harness-cov
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-include $(DEPS_INCLUDE)
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