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Merge #18300: fuzz: Add option to merge input dir to test runner

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fa3fa27c45 fuzz: Remove option --export_coverage from test_runner (MarcoFalke)
aaaa055ff7 fuzz: Add option to merge input dir to test runner (MarcoFalke)
fa4fa88d76 doc: Remove --disable-ccache from docs (MarcoFalke)

Pull request description:

  This is mainly useful for myself to merge pull requests like https://github.com/bitcoin-core/qa-assets/pull/4

  I thought it wouldn't hurt to share the code.

  Also remove the `--disable-ccache` from the docs to speed up builds when developing fuzzers.

Top commit has no ACKs.

Tree-SHA512: 818d85a90db86a7f4e8b001cc88342e5b28b02029d2bd4174440b28a8c4cc29b5406bd6348f72ddf909bb3d0f9bf7b1011976f6480e4418c8b7da5ecccae93e8
This commit is contained in:
MarcoFalke
2020-03-18 15:51:30 -04:00
parent e83a1de4c0 fa3fa27c45
commit 5c9d408b2d
2 changed files with 37 additions and 19 deletions
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8
doc/fuzzing.md
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@@ -52,7 +52,7 @@ For macOS you may need to ignore x86 compilation checks when running `make`:
To build Bitcoin Core using AFL instrumentation (this assumes that the
`AFLPATH` was set as above):
```
./configure --disable-ccache --disable-shared --enable-tests --enable-fuzz CC=${AFLPATH}/afl-gcc CXX=${AFLPATH}/afl-g++
./configure --disable-shared --enable-tests --enable-fuzz CC=${AFLPATH}/afl-gcc CXX=${AFLPATH}/afl-g++
export AFL_HARDEN=1
make
```
@@ -60,7 +60,7 @@ make
If you are using clang you will need to substitute `afl-gcc` with `afl-clang`
and `afl-g++` with `afl-clang++`, so the first line above becomes:
```
./configure --disable-ccache --disable-shared --enable-tests --enable-fuzz CC=${AFLPATH}/afl-clang CXX=${AFLPATH}/afl-clang++
./configure --disable-shared --enable-tests --enable-fuzz CC=${AFLPATH}/afl-clang CXX=${AFLPATH}/afl-clang++
```
We disable ccache because we don't want to pollute the ccache with instrumented
@@ -102,7 +102,7 @@ libFuzzer is needed (all found in the `compiler-rt` runtime libraries package).
To build all fuzz targets with libFuzzer, run
```
./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=clang CXX=clang++
./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=clang CXX=clang++
make
```
@@ -134,5 +134,5 @@ clang does not come first in your path.
Full configure that was tested on macOS Catalina with `brew` installed `llvm`:
```
./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++ --disable-asm
./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++ --disable-asm
```