Commit 57001ce3 authored by Max Dymond's avatar Max Dymond Committed by Daniel Stenberg
Browse files

ossfuzz: Move to C++ for curl_fuzzer. 

Automake gets confused if you want to use C++ static libraries with C
code - basically we need to involve the clang++ linker. The easiest way
of achieving this is to rename the C code as C++ code. This gets us a
bit further along the path and ought to be compatible with Google's
version of clang.
parent c290b8fb

.gitignore

+1 −0
Original line number Diff line number Diff line
@@ -55,3 +55,4 @@ test-driver 
scripts/_curl

curl_fuzzer

curl_fuzzer_seed_corpus.zip

libstandaloneengine.a

.travis.yml

+5 −0
Original line number Diff line number Diff line
@@ -145,7 +145,12 @@ script: 
    - |

        if [ "$T" = "fuzzer" ]; then

          export CC=clang

          export CXX=clang++

          export CFLAGS="-fsanitize=address"



          # Specifically use libstdc++ for travis as libc++ is not installed.

          # This is ok because we're not compiling against libFuzzer.

          export CXXFLAGS="-fsanitize=address -stdlib=libstdc++"

          ./configure --disable-shared --enable-debug --enable-maintainer-mode

          make

          cd tests/fuzz

configure.ac

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ CURL_CHECK_OPTION_RT 


XC_CHECK_PATH_SEPARATOR

AX_CODE_COVERAGE

AC_PROG_CXX



#

# save the configure arguments

tests/fuzz/Makefile.am

+6 −6
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@@ -30,12 +30,12 @@ AUTOMAKE_OPTIONS = foreign nostdinc 
# $(top_builddir)/lib is for libcurl's generated lib/curl_config.h file

# $(top_srcdir)/lib for libcurl's lib/curl_setup.h and other "borrowed" files



AM_CFLAGS = -I$(top_srcdir)/include        \

AM_CXXFLAGS = -I$(top_srcdir)/include        \

              -I$(top_builddir)/lib          \

              -I$(top_srcdir)/lib            \

              -I$(top_srcdir)/tests/fuzz



LIBS = -lpthread -lstdc++ -lm

LIBS = -lpthread -lm



# Run e.g. "make all LIB_FUZZING_ENGINE=/path/to/libFuzzer.a"

# to link the fuzzer(s) against a real fuzzing engine.

tests/fuzz/Makefile.inc

+5 −5
Original line number Diff line number Diff line 
FUZZPROGS = curl_fuzzer

FUZZLIBS = libstandaloneengine.a



curl_fuzzer_SOURCES = curl_fuzzer.c

curl_fuzzer_CFLAGS = $(AM_CFLAGS)

curl_fuzzer_SOURCES = curl_fuzzer.cc

curl_fuzzer_CXXFLAGS = $(AM_CXXFLAGS)



libstandaloneengine_a_SOURCES = standalone_fuzz_target_runner.c

libstandaloneengine_a_CFLAGS = $(AM_CFLAGS)

libstandaloneengine_a_SOURCES = standalone_fuzz_target_runner.cc

libstandaloneengine_a_CXXFLAGS = $(AM_CXXFLAGS)



# Some more targets.

zip: