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README.md
base-libfuzzer
Abstract base image for libfuzzer builders.
docker run -ti <image_name> <command> <arguments>
Supported Commands
| Command | Description |
|---|---|
compile (default) |
build all fuzzers |
reproduce <fuzzer_name> <fuzzer_options> |
build all fuzzers and run specified one with /testcase content. |
run <fuzzer_name> <fuzzer_options...> |
build all fuzzers and run specified one with given options. |
/bin/bash |
drop into shell, execute compile script to start build. |
Image Files Layout
| Location | Description |
|---|---|
/out/ ($OUT) |
build artifacts should be copied here |
/src/ ($SRC) |
place to checkout source files |
/work/($WORK) |
used to store intermediate files |
/usr/lib/libfuzzer.a |
libfuzzer static library |
While files layout is fixed within a container, $SRC, $OUT, $WORK are
provided to be able to write retargetable scripts.
Compiler Flags
You must use special compiler flags to build your target and fuzzers. These flags are provided in following environment variables:
| Env Variable | Description |
|---|---|
$CC |
The C compiler binary. |
$CXX, $CCC |
The C++ compiler binary. |
$CFLAGS |
C compiler flags. |
$CXXFLAGS |
C++ compiler flags. |
Many well-crafted build scripts will automatically use these variables. If not, passing them manually to a build tool might be required.
Child Image Interface
Sources
Child image has to checkout all sources it needs to compile fuzzers into
$SRC directory. When the image is executed, a directory could be mounted
on top of these with local checkouts using
docker run -v $HOME/my_target:/src/my_target ....
Other Required Files
Following files have to be added by child images:
| File Location | Description |
|---|---|
$SRC/build.sh |
build script to build the target and its fuzzers |