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authorVasil Dimov <vd@FreeBSD.org>2020-06-05 11:50:34 +0200
committerVasil Dimov <vd@FreeBSD.org>2020-06-05 11:50:34 +0200
commit00124713912ead4ce610d519bb3ebab7e31cbea7 (patch)
treed13f848cc7877141be17086f393ef179a9b8a2b2 /doc
parent01b45b2e016f0b0907929e818216edf7157fb03a (diff)
build: turn on --enable-c++17 by --enable-fuzz
Fuzzing code uses C++17 specific code (e.g. std::optional), so it is not possible to compile with --enable-fuzz and without --enable-c++17. Thus, turn on --enable-c++17 whenever --enable-fuzz is used.
Diffstat (limited to 'doc')
-rw-r--r--doc/fuzzing.md8
1 files changed, 4 insertions, 4 deletions
diff --git a/doc/fuzzing.md b/doc/fuzzing.md
index 16852bb970..419b1db44e 100644
--- a/doc/fuzzing.md
+++ b/doc/fuzzing.md
@@ -8,7 +8,7 @@ To quickly get started fuzzing Bitcoin Core using [libFuzzer](https://llvm.org/d
$ git clone https://github.com/bitcoin/bitcoin
$ cd bitcoin/
$ ./autogen.sh
-$ CC=clang CXX=clang++ ./configure --enable-fuzz --with-sanitizers=address,fuzzer,undefined --enable-c++17
+$ CC=clang CXX=clang++ ./configure --enable-fuzz --with-sanitizers=address,fuzzer,undefined
# macOS users: If you have problem with this step then make sure to read "macOS hints for
# libFuzzer" on https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md#macos-hints-for-libfuzzer
$ make
@@ -103,7 +103,7 @@ You may also need to take care of giving the correct path for `clang` and
Full configure that was tested on macOS Catalina with `brew` installed `llvm`:
```sh
-./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++ --disable-asm --enable-c++17
+./configure --enable-fuzz --with-sanitizers=fuzzer,address,undefined CC=/usr/local/opt/llvm/bin/clang CXX=/usr/local/opt/llvm/bin/clang++ --disable-asm
```
Read the [libFuzzer documentation](https://llvm.org/docs/LibFuzzer.html) for more information. This [libFuzzer tutorial](https://github.com/google/fuzzing/blob/master/tutorial/libFuzzerTutorial.md) might also be of interest.
@@ -121,7 +121,7 @@ $ git clone https://github.com/google/afl
$ make -C afl/
$ make -C afl/llvm_mode/
$ ./autogen.sh
-$ CC=$(pwd)/afl/afl-clang-fast CXX=$(pwd)/afl/afl-clang-fast++ ./configure --enable-fuzz --enable-c++17
+$ CC=$(pwd)/afl/afl-clang-fast CXX=$(pwd)/afl/afl-clang-fast++ ./configure --enable-fuzz
$ make
# For macOS you may need to ignore x86 compilation checks when running "make". If so,
# try compiling using: AFL_NO_X86=1 make
@@ -148,7 +148,7 @@ $ git clone https://github.com/google/honggfuzz
$ cd honggfuzz/
$ make
$ cd ..
-$ CC=$(pwd)/honggfuzz/hfuzz_cc/hfuzz-clang CXX=$(pwd)/honggfuzz/hfuzz_cc/hfuzz-clang++ ./configure --enable-fuzz --with-sanitizers=address,undefined --enable-c++17
+$ CC=$(pwd)/honggfuzz/hfuzz_cc/hfuzz-clang CXX=$(pwd)/honggfuzz/hfuzz_cc/hfuzz-clang++ ./configure --enable-fuzz --with-sanitizers=address,undefined
$ make
$ mkdir -p inputs/
$ honggfuzz/honggfuzz -i inputs/ -- src/test/fuzz/process_message