| commit | 8e55c61b321c2c356eb1f2bb4225b9c9eab5d4fe | [log] [tgz] |
|---|---|---|
| author | Armando Montanez <amontanez@pigweed.infra.roller.google.com> | Wed Apr 16 09:54:19 2025 -0700 |
| committer | CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> | Wed Apr 16 09:54:19 2025 -0700 |
| tree | 52bcc89f1ae2317e0d3a0b2d3613a048570dd8b2 | |
| parent | dcfeb87cbce87d7b0fbb038755bd9904624025f7 [diff] |
roll: pigweed gn: Introduce new variables for 3p dependencies Introduces the new variable names that will be used when referencing 3p dependencies in Pigweed's GN build. Original-Bug: b/410889733 Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/284153 Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Original-Revision: 4c53c4723d91ef56fbd81cbd07d805cabcf5a7f4 Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed Rolled-Commits: 996359c27afc91..4c53c4723d91ef Roll-Count: 1 Roller-URL: https://cr-buildbucket.appspot.com/build/8717414950945145585 GitWatcher: ignore CQ-Do-Not-Cancel-Tryjobs: true Change-Id: I2ee7fa055ee043c95c810ea6b0c08ae8c9aa2c83 Reviewed-on: https://pigweed-review.googlesource.com/c/zephyr/zephyr-bazel/+/284312 Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com> Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com> Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
The way this repository works is by overlaying itself on top of Zephyr. To get started, first make sure you have Bazel‘s skylib version 1.7.1 or greater. If you don’t have it, you can use:
http_archive(
name = "bazel_skylib",
sha256 = "bc283cdfcd526a52c3201279cda4bc298652efa898b10b4db0837dc51652756f",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
"https://github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
],
)
load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
bazel_skylib_workspace()
To grab the zephyr-bazel repo, use a git_repository rule in your WORKSPACE, such as:
git_repository(
name = "zephyr-bazel",
remote = "https://pigweed.googlesource.com/zephyr/zephyr-bazel"
branch = "main",
)
Once you have @zephyr-bazel, we can load the patch rule to generate the Zephyr diff that will augment Zephyr to include the BUILD.zephyr rules.
load("@zephyr-bazel//:setup.bzl", "create_zephyr_patch_file")
create_zephyr_patch_file(
name = "zephyr-patch",
filename = "patch.diff",
# This is optional, use it to see what's going on under the hood
debug = True,
)
We now have a diff file at @zephyr-patch//:patch.diff. We're ready to load Zephyr.
git_repository(
name = "zephyr",
remote = "https://github.com/zephyrproject-rtos/zephyr.git",
branch = "main",
patches = [
"@zephyr-patch//:patch.diff",
],
)
The final step will be to load Zephyr's python dependencies:
load("@rules_python//python:pip.bzl", "pip_parse")
pip_parse(
name = "py_deps",
python_interpreter_target = interpreter,
requirements_lock = "@@zephyr//:scripts/requirements-base.txt",
)
load("@py_deps//:requirements.bzl", zephyr_install_deps = "install_deps")
zephyr_install_deps()
In your main application, you can now use the Zephyr utilities for building your app.
load("@zephyr//:defs.bzl", "dts_cc_library")
dts_cc_library(
name = "app_native_sim_dts",
dts_lib = "@zephyr//boards/native/native_sim:native_sim",
)
cc_binary(
...
deps = [
...
"@zephyr//:zephyr",
] + select({
"@platform//cpu:x86_64": [
":app_native_sim_dts",
"@zephyr//include:posix",
],
}),
copts = select({
"@platform//cpu:x86_64": [
"-DCONFIG_ARCH_POSIX=1",
],
}),
)
There is currently just 1 example, you can run it via:
$ cd examples/hello_dts $ bazel run :app
Or, you can run the tests via:
$ cd examples/hello_dts $ bazel test //...