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rippled/.github/scripts/strategy-matrix/generate.py
Pratik Mankawde f13d17165a fix: Switch GCC ASAN to -mcmodel=medium and reduce TSAN build parallelism 
- Change -mcmodel=large to -mcmodel=medium for GCC ASAN builds. The large
  model inflates code size with 64-bit absolute addresses, pushing the
  binary past the 2GB limit where GCC's pre-compiled CRT startup code
  (crtstuff.c) can't reach data sections with 32-bit relocations.
  Medium model keeps code compact (CRT-compatible) while allowing data
  beyond 2GB.

- Add nproc_subtract=20 for TSAN builds to reduce build parallelism.
  TSAN instrumentation significantly increases per-compilation-unit memory
  usage, causing OOM on CI runners with high parallelism.

- Plumb nproc_subtract from the CI matrix through to the build workflow
  so individual configurations can control their parallelism.

- Temporarily restrict CI matrix to only the two previously-failing
  configs (gcc-13 asan-ubsan, clang-20 tsan-ubsan) to validate fixes
  without burning CI resources on passing configs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-19 15:22:23 +00:00

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#!/usr/bin/env python3
import argparse
import itertools
import json
from dataclasses import dataclass
from pathlib import Path
THIS_DIR = Path(__file__).parent.resolve()
@dataclass
class Config:
architecture: list[dict]
os: list[dict]
build_type: list[str]
cmake_args: list[str]
"""
Generate a strategy matrix for GitHub Actions CI.
On each PR commit we will build a selection of Debian, RHEL, Ubuntu, MacOS, and
Windows configurations, while upon merge into the develop or release branches,
we will build all configurations, and test most of them.
We will further set additional CMake arguments as follows:
- All builds will have the `tests`, `werr`, and `xrpld` options.
- All builds will have the `wextra` option except for GCC 12 and Clang 16.
- All release builds will have the `assert` option.
- Certain Debian Bookworm configurations will change the reference fee, enable
codecov, and enable voidstar in PRs.
"""
def generate_strategy_matrix(all: bool, config: Config) -> list:
configurations = []
for architecture, os, build_type, cmake_args in itertools.product(
config.architecture, config.os, config.build_type, config.cmake_args
):
# The default CMake target is 'all' for Linux and MacOS and 'install'
# for Windows, but it can get overridden for certain configurations.
cmake_target = "install" if os["distro_name"] == "windows" else "all"
# We build and test all configurations by default, except for Windows in
# Debug, because it is too slow, as well as when code coverage is
# enabled as that mode already runs the tests.
build_only = False
if os["distro_name"] == "windows" and build_type == "Debug":
build_only = True
# Only generate a subset of configurations in PRs.
if not all:
# Debian:
# - Bookworm using GCC 13: Release on linux/amd64, set the reference
# fee to 500.
# - Bookworm using GCC 15: Debug on linux/amd64, enable code
# coverage (which will be done below).
# - Bookworm using Clang 16: Debug on linux/amd64, enable voidstar.
# - Bookworm using Clang 17: Release on linux/amd64, set the
# reference fee to 1000.
# - Bookworm using Clang 20: Debug on linux/amd64.
if os["distro_name"] == "debian":
skip = True
if os["distro_version"] == "bookworm":
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-13"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
cmake_args = f"-DUNIT_TEST_REFERENCE_FEE=500 {cmake_args}"
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-15"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-16"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
cmake_args = f"-Dvoidstar=ON {cmake_args}"
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-17"
and build_type == "Release"
and architecture["platform"] == "linux/amd64"
):
cmake_args = f"-DUNIT_TEST_REFERENCE_FEE=1000 {cmake_args}"
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-20"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
skip = False
if skip:
continue
# RHEL:
# - 9 using GCC 12: Debug on linux/amd64.
# - 10 using Clang: Release on linux/amd64.
if os["distro_name"] == "rhel":
skip = True
if os["distro_version"] == "9":
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-12"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
skip = False
elif os["distro_version"] == "10":
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-any"
and build_type == "Release"
and architecture["platform"] == "linux/amd64"
):
skip = False
if skip:
continue
# Ubuntu:
# - Jammy using GCC 12: Debug on linux/arm64.
# - Noble using GCC 14: Release on linux/amd64.
# - Noble using Clang 18: Debug on linux/amd64.
# - Noble using Clang 19: Release on linux/arm64.
if os["distro_name"] == "ubuntu":
skip = True
if os["distro_version"] == "jammy":
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-12"
and build_type == "Debug"
and architecture["platform"] == "linux/arm64"
):
skip = False
elif os["distro_version"] == "noble":
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-14"
and build_type == "Release"
and architecture["platform"] == "linux/amd64"
):
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-18"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
skip = False
if (
f"{os['compiler_name']}-{os['compiler_version']}" == "clang-19"
and build_type == "Release"
and architecture["platform"] == "linux/arm64"
):
skip = False
if skip:
continue
# MacOS:
# - Debug on macos/arm64.
if os["distro_name"] == "macos" and not (
build_type == "Debug" and architecture["platform"] == "macos/arm64"
):
continue
# Windows:
# - Release on windows/amd64.
if os["distro_name"] == "windows" and not (
build_type == "Release" and architecture["platform"] == "windows/amd64"
):
continue
# Additional CMake arguments.
cmake_args = f"{cmake_args} -Dtests=ON -Dwerr=ON -Dxrpld=ON"
if not f"{os['compiler_name']}-{os['compiler_version']}" in [
"gcc-12",
"clang-16",
]:
cmake_args = f"{cmake_args} -Dwextra=ON"
if build_type == "Release":
cmake_args = f"{cmake_args} -Dassert=ON"
# We skip all RHEL on arm64 due to a build failure that needs further
# investigation.
if os["distro_name"] == "rhel" and architecture["platform"] == "linux/arm64":
continue
# We skip all clang 20+ on arm64 due to Boost build error.
if (
f"{os['compiler_name']}-{os['compiler_version']}"
in ["clang-20", "clang-21"]
and architecture["platform"] == "linux/arm64"
):
continue
# Enable code coverage for Debian Bookworm using GCC 15 in Debug on
# linux/amd64
if (
f"{os['distro_name']}-{os['distro_version']}" == "debian-bookworm"
and f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-15"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
cmake_args = f"{cmake_args} -Dcoverage=ON -Dcoverage_format=xml -DCODE_COVERAGE_VERBOSE=ON -DCMAKE_C_FLAGS=-O0 -DCMAKE_CXX_FLAGS=-O0"
# Enable unity build for Ubuntu Jammy using GCC 12 in Debug on
# linux/amd64.
if (
f"{os['distro_name']}-{os['distro_version']}" == "ubuntu-jammy"
and f"{os['compiler_name']}-{os['compiler_version']}" == "gcc-12"
and build_type == "Debug"
and architecture["platform"] == "linux/amd64"
):
cmake_args = f"{cmake_args} -Dunity=ON"
# Generate a unique name for the configuration, e.g. macos-arm64-debug
# or debian-bookworm-gcc-12-amd64-release.
config_name = os["distro_name"]
if (n := os["distro_version"]) != "":
config_name += f"-{n}"
if (n := os["compiler_name"]) != "":
config_name += f"-{n}"
if (n := os["compiler_version"]) != "":
config_name += f"-{n}"
config_name += (
f"-{architecture['platform'][architecture['platform'].find('/')+1:]}"
)
config_name += f"-{build_type.lower()}"
if "-Dcoverage=ON" in cmake_args:
config_name += "-coverage"
if "-Dunity=ON" in cmake_args:
config_name += "-unity"
# Add the configuration to the list, with the most unique fields first,
# so that they are easier to identify in the GitHub Actions UI, as long
# names get truncated.
# Add Address and Thread (both coupled with UB) sanitizers for specific bookworm distros.
# GCC-Asan rippled-embedded tests are failing because of https://github.com/google/sanitizers/issues/856
if os[
"distro_version"
] == "bookworm" and f"{os['compiler_name']}-{os['compiler_version']}" in [
"clang-20",
"gcc-13",
]:
# Add ASAN + UBSAN configuration.
configurations.append(
{
"config_name": config_name + "-asan-ubsan",
"cmake_args": cmake_args,
"cmake_target": cmake_target,
"build_only": build_only,
"build_type": build_type,
"os": os,
"architecture": architecture,
"sanitizers": "address,undefinedbehavior",
}
)
# Add TSAN + UBSAN configuration.
# TSAN instrumentation significantly increases memory usage during
# compilation, so reduce build parallelism to avoid OOM on CI runners.
configurations.append(
{
"config_name": config_name + "-tsan-ubsan",
"cmake_args": cmake_args,
"cmake_target": cmake_target,
"build_only": build_only,
"build_type": build_type,
"os": os,
"architecture": architecture,
"sanitizers": "thread,undefinedbehavior",
"nproc_subtract": 20,
}
)
else:
configurations.append(
{
"config_name": config_name,
"cmake_args": cmake_args,
"cmake_target": cmake_target,
"build_only": build_only,
"build_type": build_type,
"os": os,
"architecture": architecture,
"sanitizers": "",
}
)
# TEMPORARY: Only build previously-failing sanitizer variants to save CI.
# Remove this filter once these configs pass.
sanitizer_only = [
c
for c in configurations
if c["sanitizers"]
and (
("gcc-13" in c["config_name"] and "asan" in c["config_name"])
or ("clang-20" in c["config_name"] and "tsan" in c["config_name"])
)
]
if sanitizer_only:
return sanitizer_only
return configurations
def read_config(file: Path) -> Config:
config = json.loads(file.read_text())
if (
config["architecture"] is None
or config["os"] is None
or config["build_type"] is None
or config["cmake_args"] is None
):
raise Exception("Invalid configuration file.")
return Config(**config)
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument(
"-a",
"--all",
help="Set to generate all configurations (generally used when merging a PR) or leave unset to generate a subset of configurations (generally used when committing to a PR).",
action="store_true",
)
parser.add_argument(
"-c",
"--config",
help="Path to the JSON file containing the strategy matrix configurations.",
required=False,
type=Path,
)
args = parser.parse_args()
matrix = []
if args.config is None or args.config == "":
matrix += generate_strategy_matrix(
args.all, read_config(THIS_DIR / "linux.json")
)
matrix += generate_strategy_matrix(
args.all, read_config(THIS_DIR / "macos.json")
)
matrix += generate_strategy_matrix(
args.all, read_config(THIS_DIR / "windows.json")
)
else:
matrix += generate_strategy_matrix(args.all, read_config(args.config))
# Generate the strategy matrix.
print(f"matrix={json.dumps({'include': matrix})}")
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