def build():
"""Build benchmark."""
afl_fuzzer.prepare_build_environment()
utils.build_benchmark()
print('[post_build] Copying Ankou to $OUT directory')
shutil.copy('/Ankou', os.environ['OUT'])
def build():
"""Build fuzzer."""
afl_fuzzer.prepare_build_environment()
# Override AFL's FUZZER_LIB with QSYM's.
os.environ['FUZZER_LIB'] = '/libQSYM.a'
src = os.getenv('SRC')
work = os.getenv('WORK')
with utils.restore_directory(src), utils.restore_directory(work):
# Restore SRC to its initial state so we can build again without any
# trouble. For some OSS-Fuzz projects, build_benchmark cannot be run
# twice in the same directory without this.
utils.build_benchmark()
# QSYM requires an uninstrumented build as well.
new_env = os.environ.copy()
utils.set_no_sanitizer_compilation_flags(new_env)
cflags = ['-O2', '-fno-omit-frame-pointer', '-gline-tables-only']
utils.append_flags('CFLAGS', cflags, new_env)
utils.append_flags('CXXFLAGS', cflags, new_env)
# For uninstrumented build, set the OUT and FUZZ_TARGET environment
# variable to point to the new uninstrumented build directory.
build_directory = os.environ['OUT']
uninstrumented_build_directory = get_uninstrumented_build_directory(
build_directory)
os.mkdir(uninstrumented_build_directory)
new_env['OUT'] = uninstrumented_build_directory
fuzz_target = os.getenv('FUZZ_TARGET')
if fuzz_target:
new_env['FUZZ_TARGET'] = os.path.join(uninstrumented_build_directory,
os.path.basename(fuzz_target))
print('Re-building benchmark for uninstrumented fuzzing target')
utils.build_benchmark(env=new_env)
print('[post_build] Copying afl-fuzz to $OUT directory')
# Copy out the afl-fuzz binary as a build artifact.
shutil.copy('/afl/afl-fuzz', build_directory)
# QSYM also requires afl-showmap.
print('[post_build] Copying afl-showmap to $OUT directory')
shutil.copy('/afl/afl-showmap', build_directory)
def build():
"""Build benchmark."""
# Backup the environment.
new_env = os.environ.copy()
# First, build an instrumented binary for AFL.
afl_fuzzer.prepare_build_environment()
src = os.getenv('SRC')
work = os.getenv('WORK')
with utils.restore_directory(src), utils.restore_directory(work):
# Restore SRC to its initial state so we can build again without any
# trouble. For some OSS-Fuzz projects, build_benchmark cannot be run
# twice in the same directory without this.
utils.build_benchmark()
print('[build] Copying afl-fuzz to $OUT directory')
shutil.copy('/afl/afl-fuzz', os.environ['OUT'])
# Next, build an uninstrumented binary for Eclipser.
new_env['CC'] = 'clang'
new_env['CXX'] = 'clang++'
new_env['FUZZER_LIB'] = '/libStandaloneFuzzTarget.a'
# Ensure to compile with NO_SANITIZER_COMPAT* flags even for bug benchmarks,
# as QEMU is incompatible with sanitizers. Also, Eclipser prefers clean and
# unoptimized binaries. We leave fast random fuzzing as AFL's job.
new_env['CFLAGS'] = ' '.join(utils.NO_SANITIZER_COMPAT_CFLAGS)
cxxflags = [utils.LIBCPLUSPLUS_FLAG] + utils.NO_SANITIZER_COMPAT_CFLAGS
new_env['CXXFLAGS'] = ' '.join(cxxflags)
uninstrumented_outdir = get_uninstrumented_outdir(os.environ['OUT'])
os.mkdir(uninstrumented_outdir)
new_env['OUT'] = uninstrumented_outdir
fuzz_target = os.getenv('FUZZ_TARGET')
if fuzz_target:
targ_name = os.path.basename(fuzz_target)
new_env['FUZZ_TARGET'] = os.path.join(uninstrumented_outdir, targ_name)
print('[build] Re-building benchmark for uninstrumented fuzzing target')
utils.build_benchmark(env=new_env)
def build():
"""Build benchmark and copy fuzzer to $OUT."""
afl_fuzzer.prepare_build_environment()
utils.build_benchmark()
# Move manul base to /out.
shutil.move('/manul', os.environ['OUT'])