Generate vmlinux.h headers in parallel #29

	name: vmlinux.h

	on:
	pull_request:
	push:
	branches:
	- main
	workflow_dispatch:

	jobs:
	gen-headers:
	name: Generate vmlinux.h (${{ matrix.arch }})
	runs-on: ubuntu-latest
	strategy:
	matrix:
	arch:
	- x86_64
	- aarch64
	- arm
	- loongarch64
	- ppc64le
	- riscv64
	- s390x

	steps:

	- uses: actions/checkout@v4

	- name: Check out Linux source
	uses: actions/checkout@v6
	with:
	repository: 'torvalds/linux'
	ref: 'v6.18'
	fetch-depth: 1
	path: linux/

	- name: Install dependencies
	shell: bash
	run: \|
	./scripts/install-dependencies.sh
	./scripts/install-pahole.sh
	./scripts/install-bpftool.sh

	- name: Generate ${{ matrix.arch }}/vmlinux.h
	shell: bash
	run: ./scripts/gen-vmlinux-header.sh ${{ matrix.arch }}

	- name: Upload headers
	uses: actions/upload-artifact@v4
	with:
	name: vmlinux.h-${{ matrix.arch }}
	if-no-files-found: error
	path: ./vmlinux.h/${{ matrix.arch }}

	combine-headers:
	name: Combine all vmlinux.h headers
	runs-on: ubuntu-latest
	needs: gen-headers

	steps:
	- name: Download all artifacts
	uses: actions/download-artifact@v4
	with:
	pattern: vmlinux.h-*

	- name: Reorganize headers
	shell: bash
	run: \|
	mkdir -p vmlinux.h
	for dir in vmlinux.h-*/; do
	arch="${dir#vmlinux.h-}"
	arch="${arch%/}"
	mkdir -p "vmlinux.h/$arch"
	mv "$dir"* "vmlinux.h/$arch/"
	done

	- name: Upload combined headers
	uses: actions/upload-artifact@v4
	with:
	name: vmlinux.h
	if-no-files-found: error
	path: ./vmlinux.h

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