Test harness for GCC's -fanalyzer

This is an integration test suite for GCC's -fanalyzer option.

The idea is to build various C projects using a candidate installation of GCC with -fanalyzer, and capture the diagnostics in SARIF format.

This way, the diagnostics emitted by different GCC builds can be compared i.e. the projects being built are fixed; it's the GCC version that varies.

The harness assumes the GCC being tested implements -fdiagnostics-format=sarif-file (added in GCC version 13).

Goals

• integration testing of -fanalyzer on real-world C projects
  • signal:noise ratio
• exercise -fanalyzer on code written in a variety of different styles, by different teams, using each upstream's default choice of compilation flags.
• all projects should be FLOSS (as should the test harness itself)

Non-goals

• unit-testing of specific code constructs (this belongs in GCC's own test suite)
• C++ (for now)

Current projects tested

See projects.py for the full details

• apr-1.7.0
• coreutils-9.1
• Doom
• git-2.39.0
• haproxy-2.7.1
• ImageMagick-7.1.0-57
• Juliet-1.3 (a test suite for static analysis tools)
• linux-5.10.162 (with allnoconfig)
• pcre2-10.42
• qemu-7.2.0
• xz-5.4.0
• zlib-1.2.13

Prerequisites

TODO

$ sudo pip install sarif-tools

TODO: is this in Fedora yet?

Needs a copy of https://github.com/davidmalcolm/sarif-dump checked out to a sister directory for now.

Usage

TODO