highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2026-06-08 13:49:35 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge bitcoin/bitcoin#31836: contrib: Add deterministic-fuzz-coverage

Browse Source 
fa3e409c9a contrib: Add deterministic-fuzz-coverage (MarcoFalke)

Pull request description:

  The goal of this script is to detect and debug the remaining fuzz determinism and stability issues (https://github.com/bitcoin/bitcoin/issues/29018).

ACKs for top commit:
  marcofleon:
    Tested ACK fa3e409c9a
  brunoerg:
    tested ACK fa3e409c9a

Tree-SHA512: f336537d64188d6bc3c53880f4552a09cc498841c539cb7b4f14e622c9542531b970c1a6910981f7506e7bf659d2ce83471d58f5f51b0a411868f4c11eaf6b2a
This commit is contained in:
merge-script
2025-02-18 10:36:02 +00:00
parent 9da0820ec5 fa3e409c9a
commit 50afaf3a38
3 changed files with 232 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
contrib/devtools/README.md
View File

@@ -2,6 +2,26 @@ Contents
========
This directory contains tools for developers working on this repository.
deterministic-fuzz-coverage
===========================
A tool to check for non-determinism in fuzz coverage. To get the help, run:
```
RUST_BACKTRACE=1 cargo run --manifest-path ./contrib/devtools/deterministic-fuzz-coverage/Cargo.toml -- --help
```
To execute the tool, compilation has to be done with the build options
`-DCMAKE_C_COMPILER='clang' -DCMAKE_CXX_COMPILER='clang++'
-DBUILD_FOR_FUZZING=ON -DCMAKE_CXX_FLAGS='-fPIC -fprofile-instr-generate
-fcoverage-mapping'`. Both llvm-profdata and llvm-cov must be installed. Also,
the qa-assets repository must have been cloned. Finally, a fuzz target has to
be picked before running the tool:
```
RUST_BACKTRACE=1 cargo run --manifest-path ./contrib/devtools/deterministic-fuzz-coverage/Cargo.toml -- $PWD/build_dir $PWD/qa-assets/corpora-dir fuzz_target_name
```
clang-format-diff.py
===================