153 lines
3.1 KiB
Bash
Executable File
153 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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export LC_ALL=C
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set -eu -o pipefail
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usage() {
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echo ""
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echo "$0 <build stage> <options> <passthrough build arguments>"
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echo ""
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echo "Build a fuzzer in the local repo using the following options:"
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echo ""
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echo "<build stage>:"
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echo " either \"depends\" or \"fuzzer\""
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echo ""
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echo "<options>:"
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echo " -f,--fuzzer <fuzzername> (ignored if building \"depends\")"
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echo " [-s,--sanitizers <sanitizers>]"
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echo " [-i,--instrument <instrument>]"
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echo " [-l,--logfile <logfile>] # default is ./zcash-build-wrapper.log"
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echo " [-h,--help]"
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echo ""
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echo "Where fuzzer is an entry in ./src/fuzzing/*, the default sanitizer"
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echo "is \"address\" and default instrument is ( \"^.*/src/$\" )."
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echo ""
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exit -1
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}
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die() {
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echo $1
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exit -1
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}
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# parse command line options
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POSITIONAL=()
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while [[ $# -gt 0 ]]
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do
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key="$1"
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case $key in
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-f|--fuzzer)
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FUZZER_NAME="$2"
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if [ ! -f "./src/fuzzing/$FUZZER_NAME/fuzz.cpp" ]
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then
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die "Cannot find source code for fuzzer."
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fi
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shift
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shift
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;;
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-s|--sanitizers)
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LLVM_SANITIZERS="$2"
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shift
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shift
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;;
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-i|--instrument)
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INSTRUMENT_CODE="$2"
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shift
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shift
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;;
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-l|--logfile)
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LOGFILE="$2"
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shift
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shift
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;;
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-h|--help)
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usage
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shift
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;;
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*)
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POSITIONAL+=("$1")
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shift
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;;
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esac
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done
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# positional arguments
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if [ ${#POSITIONAL[@]} -lt 1 ]
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then
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usage
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else
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BUILD_STAGE=${POSITIONAL[0]}
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fi
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case "${BUILD_STAGE:-undefined}" in
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depends)
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FUZZER_NAME=notused
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# fine
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;;
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fuzzer)
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# fine
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;;
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*)
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# not fine
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usage
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;;
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esac
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# required arguments
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if [ "${FUZZER_NAME:-undefined}" = "undefined" ]
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then
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usage
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fi
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# default values
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if [ "${LLVM_SANITIZERS:-undefined}" = "undefined" ]
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then
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export LLVM_SANITIZERS="address"
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fi
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if [ "${INSTRUMENT_CODE:-undefined}" = "undefined" ]
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then
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export INSTRUMENT_CODE=("^.*\/src")
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fi
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if [ "${LOGFILE:-undefined}" = "undefined" ]
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then
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export LOGFILE=./zcash-build-wrapper.log
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fi
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set -x
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export ZCUTIL=$(realpath "./zcutil")
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# overwrite the Linux make profile to use clang instead of GCC:
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cat $ZCUTIL/../depends/hosts/linux.mk | sed -e 's/=gcc/=clang/g' | sed -e 's/=g++/=clang++/g' > x
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mv x $ZCUTIL/../depends/hosts/linux.mk
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# the build_stage distinction helps to layer an intermediate docker
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# container for the built dependencies, so we can resume building
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# from there assuming no other build arguments have changed
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if [ "$BUILD_STAGE" = "depends" ]
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then
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# make an empty fuzz file just so we can build dependencies
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> src/fuzz.cpp
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else
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cp "./src/fuzzing/$FUZZER_NAME/fuzz.cpp" src/fuzz.cpp || die "Can't copy fuzz.cpp for that fuzzer"
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fi
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# sneak the variable into zcashd's build.sh
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export BUILD_STAGE
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# run build.sh with our compiler wrapper, and BUILD_STAGE environment set:
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CONFIGURE_FLAGS="--enable-tests=no --disable-bench" \
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"$ZCUTIL/build.sh" \
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-j$(nproc) \
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"CC=$ZCUTIL/libfuzzer/zcash-wrapper-clang" \
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"CXX=$ZCUTIL/libfuzzer/zcash-wrapper-clang++" "${POSITIONAL[@]:1}" || die "Build failed at stage $BUILD_STAGE."
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