pw_kernel/entry/BUILD.bazel

# Copyright 2025 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

load("@rules_rust//rust:defs.bzl", "rust_binary")
load("//pw_build:compatibility.bzl", "incompatible_with_mcu")

package(default_visibility = ["//visibility:public"])

CORTEX_M_DEPS = [
    "@rust_crates//:cortex-m",
    "@rust_crates//:cortex-m-rt",
]

RISCV_DEPS = [
    "@rust_crates//:riscv",
    "@rust_crates//:riscv-rt",
]

rust_binary(
    name = "kernel",
    srcs = ["kernel.rs"],
    crate_features = select({
        "//pw_build/constraints/arm:cortex-m33": ["arch_arm_cortex_m"],
        "@platforms//cpu:riscv32": ["arch_riscv"],
        "//conditions:default": ["arch_host"],
    }),
    edition = "2021",
    tags = ["kernel"],
    target_compatible_with = select({
        "//pw_build/constraints/arm:cortex-m33": [],
        "//pw_build/constraints/chipset:mps2-an505": [],
        "//pw_build/constraints/chipset:qemu-virt": [],
        "//pw_build/constraints/chipset:rp2350": [],
        "@platforms//cpu:riscv32": [],
        "//conditions:default": ["@platforms//:incompatible"],
    }),
    deps = [
        "//pw_kernel/kernel",
        "//pw_kernel/subsys/console:console_backend",
        "//pw_kernel/target",
        "//pw_kernel/target:linker_script",
    ] + select({
        "@pigweed//pw_build/constraints/arm:cortex-m33": CORTEX_M_DEPS,
        "@platforms//cpu:riscv32": RISCV_DEPS,
        "//conditions:default": [],
    }),
)

rust_binary(
    name = "kernel_host",
    srcs = ["kernel_host.rs"],
    edition = "2021",
    tags = ["kernel"],
    target_compatible_with = incompatible_with_mcu(),
    deps = [
        "//pw_kernel/kernel",
        "//pw_kernel/subsys/console:console_backend",
        "//pw_kernel/target",
    ],
)