Crafter.Build/packaging/flatpak/net.catcrafts.CrafterBuild.yaml
Jorijn van der Graaf 6e9eedfd21
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fix(packaging): check out the WASI sysroot's LLVM tree from git
The previous commit made the LLVM tree inside the wasi-sdk checkout a
git repository with `git init`, so that wasi-sdk's patch step would
apply. That was half the fix: wasi-sdk also runs `git rev-parse HEAD`
in that tree to write the sysroot's VERSION file, which on an empty
repository raises a traceback during configure and leaves VERSION
without its llvm lines. The build went on regardless, so the suite
passed and the published beta carries the truncated file.

Fetching the tree as a git source pinned to the release tag gives
wasi-sdk what it has upstream, a submodule checkout at a commit, and
removes the shell step instead of stacking a second workaround on it.
The llvm module keeps the release tarball: it is the same commit, and a
tarball is the cheaper download for a tree that is only compiled.
flatpak-builder keeps a mirror of the clone in its state directory, so
the fetch costs the cold run about 300 MB once.

Verified locally: no traceback, VERSION lists llvm 85ac56026243 and
llvm-version 23.1.2, the eight patch steps apply, the suite passes in
the sandbox and a wasm32-wasip1 program runs under the bundled wasmtime.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-10-03 19:04:47 +02:00

250 lines
11 KiB
YAML

# SPDX-License-Identifier: LGPL-3.0-only
# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
#
# crafter-build as a Flatpak. The runtime is the Freedesktop *Sdk*, not the
# Platform: a build tool needs glibc's headers and crt objects, gcc's
# libgcc_s, cmake, ninja, make, git and python at run time. Everything
# compiler-shaped is ours and lives under /app: clang, lld, libclang, libc++,
# compiler-rt (native and wasm32) and the WASI sysroot, all built from one
# LLVM source tree so the modules crafter-build builds and the compiler that
# consumes them can never drift apart.
app-id: net.catcrafts.CrafterBuild
runtime: org.freedesktop.Sdk
runtime-version: '26.08'
sdk: org.freedesktop.Sdk
command: crafter-build
finish-args:
# git dependencies, and the local web server `-r` starts for browser builds
- --share=network
- --socket=ssh-auth
# projects live anywhere; user sysroots too
- --filesystem=host
# so `-r` can launch what it built, games included
- --share=ipc
- --socket=wayland
- --socket=fallback-x11
- --socket=pulseaudio
- --device=all
# gdb and friends from the Sdk
- --allow=devel
- --env=PATH=/app/bin:/usr/bin
cleanup:
- /share/man
- /share/doc
modules:
- name: llvm
buildsystem: cmake-ninja
builddir: true
subdir: llvm
build-options:
# flatpak-builder's default CFLAGS carry -g. For all of LLVM that is a
# 30 GB build tree and a multi-gigabyte .Debug extension, so build
# without debug info, strip, and skip the split. The hardening flags
# from the defaults stay.
no-debuginfo: true
strip: true
cflags: -O2 -pipe -fexceptions -fasynchronous-unwind-tables -fstack-protector-strong -fstack-clash-protection -fcf-protection
cflags-override: true
cxxflags: -O2 -pipe -fexceptions -fasynchronous-unwind-tables -fstack-protector-strong -fstack-clash-protection -fcf-protection
cxxflags-override: true
config-opts:
- -DCMAKE_BUILD_TYPE=Release
- -DLLVM_ENABLE_ASSERTIONS=OFF
- -DLLVM_ENABLE_PROJECTS=clang;lld
- -DLLVM_ENABLE_RUNTIMES=compiler-rt;libcxx;libcxxabi;libunwind
- -DLLVM_TARGETS_TO_BUILD=X86;AArch64;WebAssembly
# Classic layout: libc++ in lib/ and include/c++/v1, not under a
# per-target subdirectory, the same shape as a distro install.
# crafter-build adds -L and an rpath for <prefix>/lib itself, since
# clang searches only its per-target directory and the system paths.
- -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=OFF
# One shared LLVM and one shared clang library instead of a statically
# linked copy per tool: a fraction of the install size.
- -DLLVM_BUILD_LLVM_DYLIB=ON
- -DLLVM_LINK_LLVM_DYLIB=ON
- -DCLANG_LINK_CLANG_DYLIB=ON
- -DCLANG_DEFAULT_CXX_STDLIB=libc++
- -DCLANG_DEFAULT_LINKER=lld
- -DLIBCXX_INSTALL_MODULES=ON
- -DLLVM_INCLUDE_TESTS=OFF
- -DLLVM_INCLUDE_EXAMPLES=OFF
- -DLLVM_INCLUDE_DOCS=OFF
- -DLLVM_INCLUDE_BENCHMARKS=OFF
- -DLLVM_INSTALL_UTILS=OFF
- -DCLANG_INCLUDE_TESTS=OFF
- -DCOMPILER_RT_INCLUDE_TESTS=OFF
# The Sdk links with binutils' ld; two libLLVM-sized links at a time
# fit the CX53's memory with room to spare.
- -DLLVM_PARALLEL_LINK_JOBS=2
cleanup:
- /include/llvm
- /include/llvm-c
- /include/clang
- /include/clang-tidy
- /include/lld
- /lib/cmake
- /lib/*.a
- /share/opt-viewer
- /share/scan-build
- /share/scan-view
- /bin/clang-check
- /bin/clang-extdef-mapping
- /bin/clang-import-test
- /bin/clang-linker-wrapper
- /bin/clang-nvlink-wrapper
- /bin/clang-offload-bundler
- /bin/clang-offload-packager
- /bin/clang-refactor
- /bin/clang-rename
- /bin/clang-repl
- /bin/clang-sycl-linker
- /bin/diagtool
- /bin/git-clang-format
- /bin/hmaptool
- /bin/llvm-exegesis
- /bin/scan-build*
- /bin/scan-view
sources:
- type: archive
url: https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/llvm-project-23.1.2.src.tar.xz
sha256: c98bbef08a2b4c2613cd50e9aa9ae7b69b1fe6c16b2c40373bc0ab6116fdf78a
- name: wasi-sysroot
# wasi-sdk's sysroot-only mode, driven by the clang built above:
# wasi-libc, compiler-rt builtins (installed into our clang's resource
# dir, where the wasm32 driver looks for them) and libc++ for wasip1 and
# wasip1-threads. The llvm-project tree is the same release as above so
# the wasm libc++ matches the native one.
buildsystem: cmake-ninja
builddir: true
build-options:
no-debuginfo: true
# flatpak-builder's default CFLAGS/LDFLAGS are x86-64 hardening flags
# (-fcf-protection, -z relro) that the nested wasm32 builds inherit
# through the environment and clang rejects for that target.
cflags: ""
cflags-override: true
cxxflags: ""
cxxflags-override: true
ldflags: ""
ldflags-override: true
strip: true
config-opts:
- -DCMAKE_TOOLCHAIN_FILE=/run/build/wasi-sysroot/wasi-host-toolchain.cmake
- -DWASI_SDK_BUILD_TOOLCHAIN=OFF
- -DWASI_SDK_INSTALL_TO_CLANG_RESOURCE_DIR=ON
- -DWASI_SDK_TARGETS=wasm32-wasip1;wasm32-wasip1-threads
- -DWASI_SDK_INCLUDE_TESTS=OFF
- -DCMAKE_INSTALL_PREFIX=/app
post-install:
# wasi-sdk installs into <prefix>/share/wasi-sysroot; crafter-build
# looks there (Crafter.Build:Toolchain), so nothing to move.
- test -f /app/share/wasi-sysroot/share/libc++/v1/std.cppm
sources:
- type: git
url: https://github.com/WebAssembly/wasi-sdk.git
tag: wasi-sdk-34
disable-submodules: true
# The compiler-rt sub-build gets the C target but not the ASM target, so
# its two wasm/*.S stubs come out as host objects when the driving clang
# does not default to wasm32. Reported upstream; drop once wasi-sdk has it.
- type: patch
path: wasi-sdk-asm-target.patch
- type: git
url: https://github.com/WebAssembly/wasi-libc.git
commit: 2e6fb9d8ee0cdf9e431fbcabe8af3115de000a13
dest: src/wasi-libc
# A git checkout, where the llvm module above unpacks the release
# tarball of the same tag: wasi-sdk treats src/llvm-project as the
# submodule it is upstream. It patches the tree with `git apply` before
# building libc++, and records `git rev-parse HEAD` in the sysroot's
# VERSION file. Unpacked from a tarball the directory is a plain
# subdirectory of the wasi-sdk checkout, where git treats the patched
# paths as outside the current directory, skips every one of them and
# exits 0. LLVM 22 happened to build without the patches; LLVM 23's
# libc++ does not compile for WASI without one of them.
- type: git
url: https://github.com/llvm/llvm-project.git
tag: llvmorg-23.1.2
commit: 85ac560262434c9ccfc0c183ec22d4138ed647fb
dest: src/llvm-project
- type: file
path: wasi-host-toolchain.cmake
- name: wasmtime
# The runner for wasm32-wasi tests and `-r` on a non-browser wasm build.
buildsystem: simple
build-commands:
- install -Dm755 wasmtime /app/bin/wasmtime
sources:
- type: archive
url: https://github.com/bytecodealliance/wasmtime/releases/download/v49.0.2/wasmtime-v49.0.2-x86_64-linux.tar.xz
sha256: a4d6e9e3a5a60f527cf7793d674c48930c80c2e8977995b8a275cad3254b9322
- name: libcxx-22-modules
# The std module source of the libc++ release before the bundled one, for
# cross sysroots that carry that libc++ without it: Alpine packages the
# headers and the library but not share/libc++/v1, and a module source
# only compiles against the headers of its own release. crafter-build
# picks <major>/std.cppm here by the sysroot's _LIBCPP_VERSION
# (SysrootStdModule in Crafter.Build:Toolchain). Add a module like this
# one per release worth supporting; the bundled clang has to be able to
# compile that release's headers.
buildsystem: simple
build-commands:
# Configure only. The cxx-modules component is std.cppm as configure
# generates it plus the .inc files straight from the source tree, so
# nothing is compiled, and libc++'s own install rule stays the one
# place that knows what a module source install consists of.
- cmake -S runtimes -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/app/bin/clang -DCMAKE_CXX_COMPILER=/app/bin/clang++ "-DLLVM_ENABLE_RUNTIMES=libcxx;libcxxabi" -DLIBCXXABI_USE_LLVM_UNWINDER=OFF -DLIBCXX_INSTALL_MODULES=ON
# Staged, not installed to /app: the component also writes
# lib/libc++.modules.json, which would replace the bundled libc++'s.
- cmake --install build --component cxx-modules --prefix "$PWD/stage"
- grep -q "_LIBCPP_VERSION 22" libcxx/include/__config
- mkdir -p /app/share/crafter-build/libc++-modules
- cp -r stage/share/libc++/v1 /app/share/crafter-build/libc++-modules/22
sources:
- type: archive
url: https://github.com/llvm/llvm-project/releases/download/llvmorg-22.1.8/llvm-project-22.1.8.src.tar.xz
sha256: 922f1817a0df7b1489272d18134ee0087a8b068828f87ac63b9861b1a9965888
- name: crafter-build
buildsystem: simple
build-options:
# The self-host build fetches Crafter.Math, Crafter.Asset,
# Crafter.LintRules and glslang from git; they are unpinned on purpose
# (sibling repos tracking their default branch, see AGENTS.md).
build-args:
- --share=network
# On this module, not at the top of the manifest: top-level build
# options are part of every module's cache key, and the version changes
# with every commit, which made flatpak-builder rebuild LLVM each run.
env:
CRAFTER_BUILD_LLVM_DIR: /app
# The shipped binary runs on any x86_64 from the last decade; user
# projects still build with -march=native by default.
CRAFTER_BUILD_MARCH: x86-64-v2
CRAFTER_BUILD_MTUNE: generic
# CI replaces this with the version; a local build is a development
# build.
CRAFTER_BUILD_VERSION: 0.0.0-dev
build-commands:
# Bootstrap by hand, then let the result build itself: only the
# self-hosted binary has asset support and ThinLTO.
- ./build.sh
- ./bin/crafter-build
- CRAFTER_BUILD_HOME=$PWD/share/crafter-build ./bin/crafter-build test
- install -Dm755 bin/crafter.build-exe-*/crafter-build /app/bin/crafter-build
- install -Dm644 bin/crafter.build-lib-*/libcrafter-build.a /app/lib/libcrafter-build.a
- mkdir -p /app/share && cp -r share/crafter-build /app/share/
- install -Dm644 LICENSE LICENSE.GPL -t /app/share/licenses/net.catcrafts.CrafterBuild/
- install -Dm644 packaging/flatpak/net.catcrafts.CrafterBuild.metainfo.xml -t /app/share/metainfo/
sources:
- type: dir
path: ../..
skip:
- .git
- bin
- build
- lib/libcrafter-build.a
- share/crafter-build