gecko-dev/build/build-clang
2022-03-11 04:10:49 +00:00
..
1stage.json Bug 1726782 - Separate stage from platform config for clang build. r=firefox-build-system-reviewers,mhentges 2022-02-14 21:10:00 +00:00
2stages.json Bug 1726782 - Separate stage from platform config for clang build. r=firefox-build-system-reviewers,mhentges 2022-02-14 21:10:00 +00:00
4stages-pgo.json Bug 1726782 - Separate stage from platform config for clang build. r=firefox-build-system-reviewers,mhentges 2022-02-14 21:10:00 +00:00
android-mangling-error_clang_12.patch Bug 1694280 - Add clang 12.0.0 rc2 toolchains (not yet used) r=firefox-build-system-reviewers,glandium 2021-03-03 16:53:28 +00:00
bug47258-extract-symbols-mbcs.patch
build-clang.py Bug 1755415 - Ship most compiler-rts alongside clang toolchains on all platforms. r=firefox-build-system-reviewers,mhentges 2022-02-17 03:44:39 +00:00
clang-5.0.json Bug 1755415 - Ship most compiler-rts alongside clang toolchains on all platforms. r=firefox-build-system-reviewers,mhentges 2022-02-17 03:44:39 +00:00
clang-13.json Bug 1758781 - Remove now unnecessary patch to link llvm-symbolizer statically. r=firefox-build-system-reviewers,mhentges 2022-03-11 04:10:49 +00:00
clang-tidy-ci.patch Bug 1731582 - Move to clang-13 r=firefox-build-system-reviewers,mhentges,decoder 2021-10-20 12:03:20 +00:00
clang-tidy-external-linux64.json Bug 1744890 - Remove build_type field from clang configs. r=firefox-build-system-reviewers,andi 2021-12-08 06:29:14 +00:00
clang-tidy-linux64.json Bug 1744890 - Remove build_type field from clang configs. r=firefox-build-system-reviewers,andi 2021-12-08 06:29:14 +00:00
clang-tidy-macosx64.json Bug 1755834 - Fix for clang-tidy bustage. r=glandium 2022-02-18 10:04:19 +02:00
clang-tidy-win64.json Bug 1744890 - Remove build_type field from clang configs. r=firefox-build-system-reviewers,andi 2021-12-08 06:29:14 +00:00
clang-trunk.json Bug 1758781 - Remove now unnecessary patch to link llvm-symbolizer statically. r=firefox-build-system-reviewers,mhentges 2022-03-11 04:10:49 +00:00
compiler-rt-cross-compile.patch Backed out changeset 984c21a8cf6a (bug 1744890) for causing build bustages. CLOSED TREE 2021-12-08 11:23:12 +02:00
compiler-rt-no-codesign.patch
downgrade-mangling-error_clang_12.patch Bug 1694280 - Add clang 12.0.0 rc2 toolchains (not yet used) r=firefox-build-system-reviewers,glandium 2021-03-03 16:53:28 +00:00
find_symbolizer_linux_clang_10.patch
find_symbolizer_linux_clang_15.patch Bug 1755076 - Adjust find_symbolizer_linux_clang patch to latest trunk. r=firefox-build-system-reviewers,mhentges 2022-02-12 05:52:14 +00:00
fuzzing_ccov_build_clang_12.patch Bug 1705641 - Don't flush ccov counters when process is dying when env var MOZ_FUZZING_CCOV is defined r=andi 2021-04-28 18:30:35 +00:00
linux64.json Bug 1755415 - Ship most compiler-rts alongside clang toolchains on all platforms. r=firefox-build-system-reviewers,mhentges 2022-02-17 03:44:39 +00:00
llvmorg-14-init-3166-gd9ab62ca3d29.patch Bug 1747533 - Apply clang trunk fix for crashes printing diagnostic warnings. r=firefox-build-system-reviewers,andi 2021-12-31 08:41:17 +00:00
llvmorg-14-init-4465-g22ea0cea595e-v2.patch Bug 1723593 - Port Windows 11 ASan fix to clang-12. r=glandium 2021-09-28 12:25:09 +00:00
llvmorg-14-init-10524-g1ad7de9e92bc.patch Bug 1755826 - Apply clang upstream patch to ignore recent MSVC stdatomic.h. a=RyanVM 2022-02-17 13:36:59 +00:00
llvmorg-14-init-12719-gc4b45eeb44fd.patch Bug 1748372 - Apply lld trunk fix for weak symbols with LTO on mac. r=firefox-build-system-reviewers,mhentges 2022-01-04 22:15:16 +00:00
llvmorg-14-init-13305-g319181f76718.patch Bug 1747534 - Apply lld patch fixing thread-local storage alignment on mac. r=firefox-build-system-reviewers,mhentges 2021-12-30 01:43:34 +00:00
llvmorg-14-init-13854-g782791ee84d2.patch Bug 1750659 - Refresh D116020 patch with what landed upstream. r=firefox-build-system-reviewers,mhentges 2022-01-18 00:59:16 +00:00
macosx64.json Bug 1755415 - Ship most compiler-rts alongside clang toolchains on all platforms. r=firefox-build-system-reviewers,mhentges 2022-02-17 03:44:39 +00:00
profile-g4a10504e1f70c.patch Bug 1730078 - Don't build some things during early stages of the clang compilation. r=firefox-build-system-reviewers,andi,mhentges 2021-09-15 02:39:52 +00:00
profile.json Bug 1726782 - Create a new task generating a clang profile for PGO. r=firefox-build-system-reviewers,mhentges 2022-02-14 21:10:00 +00:00
README Bug 1745115 - Default number of stages to build clang to 2. r=firefox-build-system-reviewers,andi 2021-12-10 00:29:57 +00:00
Remove-FlushViewOfFile-when-unmaping-gcda-files.patch Bug 1733611: Remove FlushViewOfFile call when unmaping gcda files in compiler-rt r=marco,andi 2021-10-08 15:06:36 +00:00
revert-llvmorg-12-init-7827-g2a078c307204.patch Bug 1745115 - Keep only one revert patch for 2a078c307204. r=firefox-build-system-reviewers,andi 2021-12-10 00:29:56 +00:00
revert-llvmorg-13-init-8182-gc2297544c047.patch Bug 1753859 - Remove changes to clang/test/CodeGen/alloc-fns-alignment.c from patches. r=firefox-build-system-reviewers,andi 2022-02-08 08:20:00 +00:00
revert-llvmorg-14-init-3651-g85ba583eba19.patch Bug 1745115 - Apply the same patches as clang 13 to clang trunk. r=firefox-build-system-reviewers,andi 2021-12-10 00:29:59 +00:00
revert-llvmorg-14-init-3652-gf3c2094d8c11.patch Bug 1753859 - Remove changes to clang/test/CodeGen/alloc-fns-alignment.c from patches. r=firefox-build-system-reviewers,andi 2022-02-08 08:20:00 +00:00
skip-3-stages.json Bug 1726782 - Create a new task generating a clang profile for PGO. r=firefox-build-system-reviewers,mhentges 2022-02-14 21:10:00 +00:00
skip-stage-1-win64.json Bug 1752486 - Replace the win64 clang 2 stages toolchain with a 1 stage one. r=firefox-build-system-reviewers,andi 2022-02-03 07:51:37 +00:00
skip-stage-1.json Bug 1751839 - Build clang stage 1 as a separate task. r=firefox-build-system-reviewers,andi 2022-01-25 21:51:17 +00:00
tsan-D101154.patch Bug 1644147 - Fix a deadlock in TSan. r=andi 2021-04-26 15:10:13 +00:00
unpoison-thread-stacks_clang_10.patch
win64-no-symlink.patch Backed out changeset 438a6427019c (bug 1737164) for landing with other author on a CLOSED TREE 2021-10-22 10:44:25 +03:00
win64.json Bug 1755415 - Ship most compiler-rts alongside clang toolchains on all platforms. r=firefox-build-system-reviewers,mhentges 2022-02-17 03:44:39 +00:00

build-clang.py
==============

A script to build clang from source.

```
usage: build-clang.py [-h] -c CONFIG [--clean]

optional arguments:
  -h, --help            show this help message and exit
  -c CONFIG, --config CONFIG
                        Clang configuration file
  --clean               Clean the build directory
```

Pre-requisites
--------------
* Working build toolchain.
* git
* CMake
* Ninja
* Python 2.7 and 3

Please use the latest available CMake for your platform to avoid surprises.

Config file format
------------------

build-clang.py accepts a JSON config format with the following fields:

* stages: Use 1, 2, 3 or 4 to select different compiler stages.  The default is 2.
* cc: Path to the bootsraping C Compiler.
* cxx: Path to the bootsraping C++ Compiler.
* as: Path to the assembler tool.
* ar: Path to the library archiver tool.
* ranlib: Path to the ranlib tool (optional).
* libtool: Path to the libtool tool (optional).
* ld: Path to the linker.
* patches: Optional list of patches to apply.
* build_type: The type of build to make.  Supported types: Release, Debug, RelWithDebInfo or MinSizeRel.
* build_libcxx: Whether to build with libcxx.  The default is false.
* build_clang_tidy: Whether to build clang-tidy with the Mozilla checks imported.  The default is false.
* osx_cross_compile: Whether to invoke CMake for OS X cross compile builds.
* assertions: Whether to enable LLVM assertions.  The default is false.
* pgo: Whether to build with PGO (requires stages == 4).  The default is false.

The revisions are defined in taskcluster/ci/fetch/toolchains.yml. They are usually commit sha1s corresponding to upstream tags.

Environment Variables
---------------------

The following environment variables are used for cross-compile builds targeting OS X on Linux.

* CROSS_CCTOOLS_PATH: Path to the cctools directory where the cross compiler toolchain is located.
* CROSS_SYSROOT: Path to the OS X SDK directory for cross compile builds.