rules_ada

rules_ada provides Bazel rules for building Ada code with the GNAT compiler.

Setup

bazel_dep(name = "rules_ada", version = "{version}")

Quick start

load("@rules_ada//ada:ada_binary.bzl", "ada_binary")
load("@rules_ada//ada:ada_library.bzl", "ada_library")

ada_library(
    name = "math_utils",
    srcs = ["math_utils.ads", "math_utils.adb"],
)

ada_binary(
    name = "calculator",
    srcs = ["main.adb"],
    deps = [":math_utils"],
)

Build with:

bazel build //:calculator

Toolchains

rules_ada downloads prebuilt GNAT toolchains from hermetic-gnat and registers them automatically, so nothing has to be installed on the host. Supported platforms are Linux (x86_64, aarch64), macOS (x86_64, aarch64) and Windows (x86_64).

Each release of rules_ada tracks one hermetic-gnat release, which ships several GCC versions. The newest is used by default; another can be selected with the version flag, e.g.

bazel build --@rules_ada//ada/settings:version=15.3.0 //...

The available versions are listed in ada/private/versions.bzl.

On macOS, also add apple_support to your MODULE.bazel, before any bazel_dep on rules_cc, so that the Apple C/C++ toolchain is used for linking:

bazel_dep(name = "apple_support", version = "2.5.4")

Docs

Additional documentation can be found at https://periareon.github.io/rules_ada/