gecko-dev/build/build-clang
Wander Lairson Costa 6332ed5b0a Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal
Using /home/worker is the build directory has a 30% talos performance
loss, because test machines has a /home mount directory.

MozReview-Commit-ID: 554IPMRWgzK

--HG--
extra : rebase_source : 00827d3f6bd705419bc801eb05b543af1ddc274f
2017-08-28 08:44:51 -03:00
..
build-clang.py Bug 1385743 - Use copy_tree() to copy directory recursively instead. r=Ehsan 2017-08-17 10:36:15 +08:00
clang-3.9-linux64.json Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal 2017-08-28 08:44:51 -03:00
clang-4-linux64.json Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal 2017-08-28 08:44:51 -03:00
clang-macosx64.json Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal 2017-08-28 08:44:51 -03:00
clang-tidy-linux64.json Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal 2017-08-28 08:44:51 -03:00
clang-tidy-macosx64.json Bug 1338651 part 1: Change docker image home dir to /build. r=dustin,mshal 2017-08-28 08:44:51 -03:00
clang-tidy-win32.json Bug 1340650 - Update clang-tidy to LLVM r295482; r=mystor 2017-02-17 14:49:50 -05:00
clang-tidy-win64.json Bug 1340650 - Update clang-tidy to LLVM r295482; r=mystor 2017-02-17 14:49:50 -05:00
clang-win32.json Bug 1373562 - Bump to clang r311608 to fix the errors running ASan on Windows 10 1703. r=Ehsan 2017-06-20 10:33:41 +08:00
clang-win64.json Bug 1373562 - Bump to clang r311608 to fix the errors running ASan on Windows 10 1703. r=Ehsan 2017-06-20 10:33:41 +08:00
compiler-rt-cross-compile.patch Bug 1331957 - Part 9: Upgrade cctools used for building clang on OS X for ld 264.3.102; r=froydnj 2017-02-03 10:19:33 -05:00
llvm-debug-frame.patch
pr28831-r280042.patch Bug 1331957 - Part 1: Update the clang OSX build config file for cross-compile builds on the infrastructure; r=froydnj 2017-02-03 10:18:50 -05:00
r277806.patch Bug 1331957 - Part 6: Reapply LLVM r277806 since our clang-plugin depends on it; r=froydnj 2017-02-03 10:19:17 -05:00
r285657.patch Bug 1331957 - Part 7: Reapply LLVM r285657 to work around bug 1291397 on clang 3.9; r=froydnj 2017-02-03 10:19:23 -05:00
README Bug 1336149 - Clean up the patches section in build-clang.py config files; r=froydnj 2017-02-03 10:21:25 -05:00
return-empty-string-non-mangled.patch Bug 1262781 - Update to clang 3.8 final. r=froydnj 2016-04-13 06:54:22 +09:00

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.
* Subversion
* CMake
* Ninja
* Python 2.7

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:

* llvm_revision: The LLVM SVN revision to build.
* stages: Use 1, 2, or 3 to select different compiler stages.  The default is 3.
* llvm_repo: SVN path to the LLVM repo.
* clang_repo: SVN path to the Clang repo.
* compiler_repo: SVN path to the compiler-rt repo.
* libcxx_repo: SVN path to the libcxx repo.
* libcxxabi_repo: SVN path to the libcxxabi repo.
* python_path: Path to the Python 2.7 installation on the machine building clang.
* gcc_dir: Path to the gcc toolchain installation, only required on Linux.
* 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.

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.