| commit | c61f86f56b86e442369725ad79299ccc5519b000 | [log] [tgz] |
|---|---|---|
| author | Googler <noreply@google.com> | Tue Jun 13 20:44:27 2017 +0200 |
| committer | Yun Peng <pcloudy@google.com> | Wed Jun 14 13:17:11 2017 +0200 |
| tree | e2bde6d9fbfb321e44a761b6318895b8123e974e | |
| parent | 94bee75ab3611c3578e9ed35099b862ebe81f249 [diff] |
Map LIPO to ThinLTO when LLVM compiler is used. This change maps LIPO to ThinLTO when a LLVM compiler is used for building, with a warning. This change is necessary for the following reason. The compiler team is planning to flip the default compiler from GCC to LLVM and this change will migrate all LIPO users of GCC to LLVM with ThinLTO + FDO (LIPO equivalent) without any changes to build scripts. RELNOTES[NEW]: LIPO maps to ThinLTO for LLVM builds. PiperOrigin-RevId: 158875330
{Fast, Correct} - Choose two
Bazel is a build tool that builds code quickly and reliably. It is used to build the majority of Google‘s software, and thus it has been designed to handle build problems present in Google’s development environment, including:
A massive, shared code repository, in which all software is built from source. Bazel has been built for speed, using both caching and parallelism to achieve this. Bazel is critical to Google's ability to continue to scale its software development practices as the company grows.
An emphasis on automated testing and releases. Bazel has been built for correctness and reproducibility, meaning that a build performed on a continuous build machine or in a release pipeline will generate bitwise-identical outputs to those generated on a developer's machine.
Language and platform diversity. Bazel's architecture is general enough to support many different programming languages within Google, and can be used to build both client and server software targeting multiple architectures from the same underlying codebase.
Find more background about Bazel in our FAQ.