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prysm-pulse/tools/cross-toolchain
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Preston Van Loon 55690de685
bazel: Check in 5.3.0 cross compile clang toolchain (#11577) 
* Check in 5.3.0 generated clang cross-toolchain

* Remove tools/cross-toolchain/configs/clang/bazel_5.0.0

* Add manual tags and run gazelle

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2022-10-27 02:48:23 +00:00
..
configs bazel: Check in 5.3.0 cross compile clang toolchain (#11577) 2022-10-27 02:48:23 +00:00
BUILD.bazel First cut at multi-arch cross compiling toolchain (#4945) 2020-03-05 16:59:56 +00:00
cc_toolchain_config_linux_arm64.bzl.tpl Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
cc_toolchain_config_osx.bzl.tpl Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
cc_toolchain_config_windows.bzl.tpl Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
cc_toolchain.BUILD.bazel.tpl Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
common_osxcross.sh Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
Dockerfile Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
empty.bzl First cut at multi-arch cross compiling toolchain (#4945) 2020-03-05 16:59:56 +00:00
install_clang_cross.sh Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
install_osxcross.sh Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
link_osxcross.sh Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
prysm_toolchains.bzl First cut at multi-arch cross compiling toolchain (#4945) 2020-03-05 16:59:56 +00:00
rbe_toolchains_config.bzl Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
README.md Add cross compilation for OSX ARM64 (Apple Silicon) (#10981) 2022-08-11 21:40:24 +00:00
regenerate.sh Update rules_go (#7202) 2020-11-10 03:01:56 +00:00

README.md

Multiarch Cross Compiling Toolchain

Toolchain suite

This package declares a c++ toolchain suite with cross compilers for targeting five platforms:

  • linux_amd64
  • linux_arm64
  • osx_amd64
  • osx_arm64
  • windows_amd64

This toolchain suite describes cross compile configuration with a Dockerfile with the appropriate host dependencies. These toolchains can be used locally (see caveats), Remote Build Execution (RBE), and in a docker sandbox (like RBE, but local).

Cross compile target support

target linux_amd64 linux_arm64 osx_amd64 osx_arm64 windows_amd64
//beacon-chain ✔️ docker-sandbox and RBE, supported locally only ✔️ docker-sandbox and RBE ✔️ docker-sandbox ✔️ docker-sandbox ✔️ docker-sandbox
//validator ✔️ docker-sandbox and RBE ✔️ docker-sandbox and RBE ✔️ docker-sandbox ✔️ docker-sandbox ✔️

The configurations above are enforced via pull request presubmit checks.

Bazel config flag values

Use these values with --config=<flag>, multiple times if more than one value is defined in the table. Example: bazel build //beacon-chain --config=windows_amd64_docker to build windows binary in a docker sandbox.

Config linux_amd64 linux_arm64 osx_amd64 osx_arm64 windows_amd64
Local run linux_amd64 linux_arm64 osx_amd64 osx_arm64 windows_amd64
Docker sandbox linux_amd64_docker linux_arm64_docker osx_amd64_docker osx_arm64_docker windows_amd64_docker
RBE (See Caveats) linux_amd64 and remote linux_arm64 and remote osx_amd64 and remote osx_arm64 and remote windows_amd64 and remote

Caveats

There are a few caveats to each of these strategies.

  • Local runs require clang compiler and the appropriate cross compilers installed. These runs should only be considered for a power user or user with specific build requirements. See the Dockerfile setup scripts to understand what dependencies must be installed and where.
  • Docker sandbox is slow. Like really slow! The purpose of the docker sandbox is to test RBE builds without deploying a full RBE system. Each build action is executed in its own container. Given the large number of small targets in this project, the overhead of creating docker containers makes this strategy the slowest of all, but requires zero additional setup.
  • Remote Build Execution is by far the fastest, if you have a RBE backend available. This is another advanced use case which will require two config flags above as well as additional flags to specify the --remote_executor. Some of these flags are present in the project .bazelrc with example values, but commented out.