| commit | c5c811e7a3c63bb600f184f762cf5e6b3db50930 | [log] [tgz] |
|---|---|---|
| author | Yicheng Li <yichengli@google.com> | Fri Nov 14 10:38:10 2025 -0800 |
| committer | CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> | Fri Nov 14 10:38:10 2025 -0800 |
| tree | b9afacb597952e9e7161107ca7499f5e48ba7850 | |
| parent | 70c8bd8c66b15d2aaf70d693dc2f78198de83e3a [diff] |
Move cortex_m headers into the cortex_m directory SoCs on ARM Cortex-M architecture need the cortex_m headers to compile their soc/ directory. These headers were previously compiled using a cc_library in the top-level BUILD.bazel. This change moves it to the proper location. Change-Id: I3111a9123a8bebfd2e5e040593a2788a34c9c130 Reviewed-on: https://pigweed-review.googlesource.com/c/zephyr/zephyr-bazel/+/295869 Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com> Reviewed-by: Armando Montanez <amontanez@google.com> Pigweed-Auto-Submit: Yicheng Li <yichengli@google.com> Commit-Queue: Yicheng Li <yichengli@google.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()
To use zephyr-bazel in bzlmod, first add it as a dependency in your project's MODULE.bazel:
bazel_dep(name = "zephyr-bazel")
git_override(
module_name = "zephyr-bazel",
remote = "https://pigweed.googlesource.com/zephyr/zephyr-bazel",
branch = "main",
)
Then use the zephyr_patch_file module extension to generate a patch file and a Bazel repo with the patch file applied:
zephyr_patch_file = use_extension("@zephyr-bazel//:setup.bzl", "zephyr_patch_file")
use_repo(zephyr_patch_file, "zephyr")
pip is required by the patched zephyr repo, so your project needs to inject it:
pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
# Load the Zephyr pip requirements
pip.parse(
hub_name = "pip",
python_version = "3.11",
requirements_lock = "@zephyr//:scripts/requirements-base.txt",
)
use_repo(pip, "pip")
inject_repo(zephyr_patch_file, "pip")
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 //...