drc: enable building as an llext module #66

	---
	# SPDX-License-Identifier: BSD-3-Clause
	# Tools that can save round-trips to github and a lot of time:
	#
	# yamllint -f parsable this.yml
	# pip3 install ruamel.yaml.cmd
	# yaml merge-expand this.yml exp.yml && diff -w -u this.yml exp.yml
	#
	# github.com also has a powerful web editor that can be used without
	# committing.

	name: rimage

	# yamllint disable-line rule:truthy
	on:
	workflow_call:
	workflow_dispatch:
	pull_request:
	paths:
	- tools/rimage/**
	push:
	paths:
	- tools/rimage/**

	jobs:

	# Basic build test
	build:
	runs-on: ubuntu-22.04
	env:
	# FIXME: add -Wpointer-arith
	_CFLGS: -Werror -Wall -Wmissing-prototypes
	-Wimplicit-fallthrough=3


	steps:
	- uses: actions/checkout@v4
	with: {submodules: recursive, fetch-depth: 0, filter: 'tree:0'}

	- run: cmake -B build-rimage/ -S tools/rimage/ -DCMAKE_C_FLAGS="${_CFLGS}"

	# VERBOSE because CFLAGS (and -Wpointer-arith) used to be ignored
	# for years and no one noticed
	- run: cmake --build build-rimage/ -- -j$(nproc) VERBOSE=1


	# cppcheck
	cppcheck:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	with: {submodules: recursive, fetch-depth: 0, filter: 'tree:0'}

	- name: apt install cppcheck
	run: sudo apt update && sudo apt-get -y install cppcheck

	# TODO enable more types of checks as they are fixed
	- name: run cppcheck
	run: cppcheck --platform=unix32 --force --max-configs=1024
	--inconclusive --inline-suppr
	--error-exitcode=1 tools/rimage/

Provide feedback