2332467b87
* Fuzz: fix forward build Signed-off-by: Miek Gieben <miek@miek.nl> * Flag not released yet, wget quiet Signed-off-by: Miek Gieben <miek@miek.nl>
58 lines
1.7 KiB
Text
58 lines
1.7 KiB
Text
# Makefile for fuzzing
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#
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# With https://app.fuzzit.dev/ we are continuously fuzzing CoreDNS.
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#
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# Use go-fuzz and needs the tools installed. For each fuzz.go in a plugin's directory
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# you can start the fuzzing with: make -f Makefile.fuzz <plugin>
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# e.g.
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#
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# make -f Makefile.fuzz forward
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#
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# Each plugin that wants to join the fuzzing fray only needs to add a fuzz.go that calls
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# the plugin's ServeDNS and used the plugin/pkg/fuzz for the Do function.
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#
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# Installing go-fuzz is very tricky because it does not support Go modules, see the `Makefile`
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# for the current trickery. The following may do the trick:
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#
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# GO111MODULE=off go get github.com/dvyukov/go-fuzz/go-fuzz-build
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REPO:="github.com/coredns/coredns"
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FUZZIT:=v2.4.35
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# set LIBFUZZER=YES to build libfuzzer compatible targets
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FUZZ:=$(dir $(wildcard plugin/*/fuzz.go)) # plugin/cache/
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PLUGINS:=$(foreach f,$(FUZZ),$(subst plugin, ,$(f:/=))) # > /cache
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PLUGINS:=$(foreach f,$(PLUGINS),$(subst /, ,$(f))) # > cache
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.PHONY: echo
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echo:
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@echo $(PLUGINS) corefile
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all: $(PLUGINS) corefile
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.PHONY: $(PLUGINS)
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$(PLUGINS): echo
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ifeq ($(LIBFUZZER), YES)
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go-fuzz-build -libfuzzer -o $(@).a ./plugin/$(@)
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clang -fsanitize=fuzzer $(@).a -o $(@)
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else
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go-fuzz-build $(REPO)/plugin/$(@)
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go-fuzz -bin=./$(@)-fuzz.zip -workdir=fuzz/$(@)
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endif
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.PHONY: corefile
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corefile:
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ifeq ($(LIBFUZZER), YES)
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go-fuzz-build -libfuzzer -o $(@).a ./test
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clang -fsanitize=fuzzer $(@).a -o $(@)
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else
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go-fuzz-build $(REPO)/test
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go-fuzz -bin=./test-fuzz.zip -workdir=fuzz/$(@)
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endif
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fuzzit:
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wget --quiet -O fuzzit https://github.com/fuzzitdev/fuzzit/releases/download/$(FUZZIT)/fuzzit_Linux_x86_64 && chmod +x fuzzit
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.PHONY: clean
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clean:
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rm *-fuzz.zip
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