From c1dea4ee507ef62b121051e34e36a9b24459ea39 Mon Sep 17 00:00:00 2001
From: Phil Turnbull <philipturnbull@github.com>
Date: Mon, 26 Jun 2017 15:05:30 -0400
Subject: Add Makefile target and harness to fuzz with libFuzzer

This can be run locally with `make libFuzzer` but the harness will be
integrated into oss-fuzz for large-scale fuzzing.
---
 Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 1b58bf7..c10c035 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,7 @@ BENCHFILE=$(BENCHDIR)/benchinput.md
 ALLTESTS=alltests.md
 NUMRUNS?=10
 CMARK=$(BUILDDIR)/src/cmark
+CMARK_FUZZ=$(BUILDDIR)/src/cmark-fuzz
 PROG?=$(CMARK)
 VERSION?=$(SPECVERSION)
 RELEASE?=CommonMark-$(VERSION)
@@ -81,6 +82,13 @@ afl:
 	    -t 100 \
 	    $(CMARK) $(CMARK_OPTS)
 
+libFuzzer:
+	@[ -n "$(LIB_FUZZER_PATH)" ] || { echo '$$LIB_FUZZER_PATH not set'; false; }
+	mkdir -p $(BUILDDIR)
+	cd $(BUILDDIR) && cmake -DCMAKE_BUILD_TYPE=Asan -DCMARK_LIB_FUZZER=ON -DCMAKE_LIB_FUZZER_PATH=$(LIB_FUZZER_PATH) ..
+	$(MAKE) -j2 -C $(BUILDDIR) cmark-fuzz
+	test/run-cmark-fuzz $(CMARK_FUZZ)
+
 clang-check: all
 	${CLANG_CHECK} -p build -analyze src/*.c
 
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