|author||Petr Hosek <email@example.com>||Tue Nov 26 14:38:08 2019 -0800|
|committer||Commit Bot <firstname.lastname@example.org>||Sat Dec 07 03:31:18 2019 +0000|
Create a new target type for Rust procedural macro Rust procedural macros are special types, even though they're technically shared libraries, they're not linked into targets and their building follows different rules and requires different defaults (e.g. they don't support sanitizers unlike other Rust targets). This change introduces new rust_proc_macro target type that could be used for building procedural macros rather than overloading shared_library. Change-Id: I9ff176a5893681ba2c3d8ce8ea291603d253e991 Reviewed-on: https://gn-review.googlesource.com/c/gn/+/6700 Commit-Queue: Petr Hosek <email@example.com> Reviewed-by: Brett Wilson <firstname.lastname@example.org>
GN is a meta-build system that generates build files for Ninja.
Alternatively, you can build GN from source:
git clone https://gn.googlesource.com/gn cd gn python build/gen.py ninja -C out # To run tests: out/gn_unittests
On Windows, it is expected that
lib.exe can be found in
PATH, so you'll want to run from a Visual Studio command prompt, or similar.
On Linux and Mac, the default compiler is
clang++, a recent version is expected to be found in
PATH. This can be overridden by setting
There is a simple example in examples/simple_build directory that is a good place to get started with the minimal configuration.
To build and run the simple example with the default gcc compiler:
cd examples/simple_build ../../out/gn gen -C out ninja -C out ./out/hello
For a maximal configuration see the Chromium setup:
and the Fuchsia setup:
If you find a bug, you can see if it is known or report it in the bug database.
GN uses Gerrit for code review. The short version of how to patch is:
Register at https://gn-review.googlesource.com. ... edit code ... ninja -C out && out/gn_unittests
Then, to upload a change for review:
git commit git push origin HEAD:refs/for/master
When revising a change, use:
git commit --amend git push origin HEAD:refs/for/master
which will add the new changes to the existing code review, rather than creating a new one.
We ask that all contributors sign Google's Contributor License Agreement (either individual or corporate as appropriate, select ‘any other Google project’).
You may ask questions and follow along with GN‘s development on Chromium’s gn-dev@ Google Group.