pico-sdk/MODULE.bazel
armandomontanez abce1d427c
Introduce initial Bazel build (#1705)
* Build boot_stage2 with Bazel

Introduces the initial foundations of a Bazel build, including a
toolchain, critical generated headers, platform patterns, and enough
BUILD files to build boot_stage2.

* Bazel libraries to support picotool

* Move SDK defines to toolchain

* Switch to `archive_override` in MODULE.bazel

Uses archive_override where applicable to allow transitive bzlmod deps
to propagate.

* Multiplatform objcopy selection in Bazel build

Makes an objcopy alias that redirects to the objcopy tool for the
current exec platform, which allows boot_stage2 to build on Linux,
macOS, and Windows.

* Generate Bazel build files

Adds initial set of generated Bazel build files. Note that these do not
yet build, as dependency cycles are present.

* Fix dependency cycles in Bazel build

Fixes many dependency cycles, some were unintentionally created by the
build file generator, others are true dependency cycles that require
manual workarounds.

* Silence warning in pico_stdio Bazel build

Silences a stray warning in the Bazel build.

* Fix wildcard Bazel build

This makes `bazel build //...` succeed, and also prevents the fetching
of toolchains that aren't compatible with the current execution
environment (i.e. Windows computers will no longer try to download macOS
toolchains).

* Get the SDK working

Finishes out the remainder of the work required to successfully compile
a working blinky example.

* Fix UART stdio dependencies in Bazel build

Fixes some dependencies around pico_stdlib so that pico_stdlib links
properly and UART stdio works.

* Add linux support to Bazel build

* Get Bazel deps from registry

Adds external an external registry for resolving Bazel module
dependencies.

* Fix host configuration for picotool

Provides the appropriate defines for host builds to support the picotool
build.

* Remove -ffreestanding from Bazel toolchain

The -ffreestanding toolchain flag is quite strict, so remove it from the
Bazel toolchain.

* Remove unused .bzl file

* Reduce Bazel compiler flags

Cuts out most of the Bazel toolchain flags and only specifies the
bare-minimum set of flags. Also, adds wrapper linker flags for functions
the SDK wraps.

* Get USB serial working

Adds initial TinyUSB support and enough integration to get USB serial
working.

* Remove "Generated build file"

Removes comments that indicates BUILD.bazel files are generated. This
was used during initial bringup to indicate hand-crafted vs
automatically generated BUILD.bazel files.

* Do not build USB libraries unless configured

Prevents USB libraries from being built unless the build is properly
configured to use them.

* Switch to rules_cc toolchains

Moves toolchain configuration to use the new rules in rules_cc.

* Minor cleanup in parse_version.py

Cleans up trailing whitespace and runs the black formatter on
parse_version.py.

* Simplify constraint dimensions in Bazel build

Consolidates the class/chip constraint settings to be a single
constraint_setting with a config_setting that represents the rp2 class.

* Update pin of rules_cc in Bazel build

Includes a necessary fix for the target_compatible_with expression in
the cc_toolchain to work as intended.

* Move toolchains from pico.bzl to BUILD.bazel

Moves toolchain definitions from pico.bzl to BUILD.bazel to make them
easier to find and read.

* Run buildifier on Bazel build files

Fix trivial formatting issues by running buildifier on all BUILD.bazel
files.

* Make objcopy rule

Makes a simple objcopy rule to remove direct references to the ARM
toolchains.

* Fix link flags in Bazel build

Critical flags were not being applied to link steps. This applies -mcpu
and -mthumb to the link steps to make the produced binaries work again.

* Mention missing host build support

* Fix various Bazel library rules

* pico_bit_ops was incomplete.
* pico_double and pico_float were trying to link in the "none"
  implementation.

* Extend Bazel build documentation

Improves documentation and comments across the Bazel build.

* Clean up auxilary tools in Bazel build

Switches genrules to use skylib rules to simplify things. Reworks
version header generation to use the Bazel module version rather than
parsing CMake.

* Update boot_stage2 Bazel build file

Moves `includes` to be enumerated on the correct library.

* Add WORKSPACE version fallback

WORKSPACE Bazel projects don't support querying module version, so add a
fallback of '0.0.1-WORKSPACE' so the build can succeed.

* Fix malloc handling in Bazel build

* Fix Bazel dependency cycle in pico_malloc

* Prevent malloc from being linked into boot_stage2

Prevents Bazel from ever trying to link malloc into the boot_stage2
binary.

* Remove custom bootloader platform

A dedicated boot_stage2 platform introduces a lot of complexity that
needs to be more thought-through.
2024-06-04 18:50:32 -05:00

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module(name = "pico-sdk", version = "1.6.0-rc1")
bazel_dep(name = "platforms", version = "0.0.8")
bazel_dep(name = "bazel_skylib", version = "1.6.1")
# Note: rules_cc is special-cased repository; a dependency on rules_cc in a
# module will not ensure that the root Bazel module has that same version of
# rules_cc. For that reason, this primarily acts as a FYI. You'll still need
# to explicitly list this dependency in your own project's MODULE.bazel file.
bazel_dep(name = "rules_cc", version = "0.0.10")
# rules_cc v0.0.10 is not yet cut, so manually pull in the desired version.
# This does not apply to dependent projects, so it needs to be copied to your
# project's MODULE.bazel too.
archive_override(
module_name = "rules_cc",
urls = "https://github.com/bazelbuild/rules_cc/archive/1acf5213b6170f1f0133e273cb85ede0e732048f.zip",
strip_prefix = "rules_cc-1acf5213b6170f1f0133e273cb85ede0e732048f",
integrity = "sha256-NddP6xi6LzsIHT8bMSVJ2NtoURbN+l3xpjvmIgB6aSg=",
)
http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
http_archive(
name = "arm_gcc_linux-x86_64",
url = "https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-x86_64-arm-none-eabi.tar.xz",
strip_prefix = "arm-gnu-toolchain-13.2.Rel1-x86_64-arm-none-eabi",
build_file = "//bazel/toolchain:gcc_arm_none_eabi.BUILD",
sha256 = "6cd1bbc1d9ae57312bcd169ae283153a9572bd6a8e4eeae2fedfbc33b115fdbb",
)
http_archive(
name = "arm_gcc_win-x86_64",
url = "https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-mingw-w64-i686-arm-none-eabi.zip",
strip_prefix = "arm-gnu-toolchain-13.2.Rel1-mingw-w64-i686-arm-none-eabi",
build_file = "//bazel/toolchain:gcc_arm_none_eabi.BUILD",
sha256 = "51d933f00578aa28016c5e3c84f94403274ea7915539f8e56c13e2196437d18f",
)
http_archive(
name = "arm_gcc_mac-x86_64",
url = "https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-darwin-x86_64-arm-none-eabi.tar.xz",
strip_prefix = "arm-gnu-toolchain-13.2.Rel1-darwin-x86_64-arm-none-eabi",
build_file = "//bazel/toolchain:gcc_arm_none_eabi.BUILD",
sha256 = "075faa4f3e8eb45e59144858202351a28706f54a6ec17eedd88c9fb9412372cc",
)
http_archive(
name = "arm_gcc_mac-aarch64",
url = "https://developer.arm.com/-/media/Files/downloads/gnu/13.2.rel1/binrel/arm-gnu-toolchain-13.2.rel1-darwin-arm64-arm-none-eabi.tar.xz",
strip_prefix = "arm-gnu-toolchain-13.2.Rel1-darwin-arm64-arm-none-eabi",
build_file = "//bazel/toolchain:gcc_arm_none_eabi.BUILD",
sha256 = "39c44f8af42695b7b871df42e346c09fee670ea8dfc11f17083e296ea2b0d279",
)
# TODO: Provide tinyusb as a proper Bazel module.
http_archive(
name = "tinyusb",
url = "https://github.com/hathach/tinyusb/archive/86c416d4c0fb38432460b3e11b08b9de76941bf5.zip",
strip_prefix = "tinyusb-86c416d4c0fb38432460b3e11b08b9de76941bf5",
build_file = "//src/rp2_common/tinyusb:tinyusb.BUILD",
sha256 = "ac57109bba00d26ffa33312d5f334990ec9a9a4d82bf890ed8b825b4610d1da2",
)
register_toolchains(
"//bazel/toolchain:arm_gcc_linux-x86_64",
"//bazel/toolchain:arm_gcc_win-x86_64",
"//bazel/toolchain:arm_gcc_mac-x86_64",
"//bazel/toolchain:arm_gcc_mac-aarch64",
)