target/ast1060-evb/BUILD.bazel

# Licensed under the Apache-2.0 license

load("@pigweed//pw_build:merge_flags.bzl", "flags_from_dict")
load("@pigweed//pw_kernel:flags.bzl", "KERNEL_DEVICE_COMMON_FLAGS")
load("@rules_rust//rust:defs.bzl", "rust_library")
load("//target/ast1060-evb:defs.bzl", "TARGET_COMPATIBLE_WITH")

package(default_visibility = [":__subpackages__"])

platform(
    name = "ast1060-evb",
    constraint_values = [
        ":target_ast1060_evb",
        # Use cortex-m3 to get soft-float ABI (compatible with thumbv7m-none-eabi Rust target)
        # The actual AST1060 has a Cortex-M4F with FPU, but QEMU emulation works fine with M3 settings
        "@pigweed//pw_build/constraints/arm:cortex-m3",
        "@platforms//cpu:armv7-m",
        "@platforms//os:none",
        "@pigweed//pw_build/constraints/rust:no_std",
    ],
    flags = flags_from_dict(
        KERNEL_DEVICE_COMMON_FLAGS | {
            "@pigweed//pw_kernel/config:kernel_config": ":config",
            # TODO: Switch to :console_backend_uart when aspeed-ddk uart driver is available
            "@pigweed//pw_kernel/subsys/console:console_backend": "@pigweed//pw_kernel/subsys/console:console_backend_semihosting",
        },
    ),
)

constraint_value(
    name = "target_ast1060_evb",
    constraint_setting = "@pigweed//pw_kernel/target:target",
)

rust_library(
    name = "entry",
    srcs = ["entry.rs"],
    crate_features = ["jtag-halt"],
    edition = "2024",
    tags = ["kernel"],
    target_compatible_with = TARGET_COMPATIBLE_WITH,
    deps = [
        ":console_backend_uart",
        "@pigweed//pw_kernel/arch/arm_cortex_m:arch_arm_cortex_m",
        "@pigweed//pw_kernel/kernel",
        "@pigweed//pw_status/rust:pw_status",
        "@oot_crates_no_std//:aspeed-ddk",
        "@oot_crates_no_std//:ast1060-pac",
        "@oot_crates_no_std//:cortex-m-rt",
    ],
)

rust_library(
    name = "console_backend_uart",
    srcs = ["console_backend.rs"],
    crate_name = "console_backend",
    edition = "2024",
    tags = ["kernel"],
    target_compatible_with = TARGET_COMPATIBLE_WITH,
    deps = [
        "@oot_crates_no_std//:ast1060-pac",
        "@pigweed//pw_status/rust:pw_status",
        "@pigweed//pw_kernel/arch/arm_cortex_m:arch_arm_cortex_m",
        "@pigweed//pw_kernel/kernel",
        "@oot_crates_no_std//:aspeed-ddk",
        "@oot_crates_no_std//:embedded-hal",
        "@oot_crates_no_std//:embedded-io",
    ],
)

rust_library(
    name = "config",
    srcs = ["config.rs"],
    crate_name = "kernel_config",
    edition = "2024",
    tags = ["kernel"],
    visibility = ["//target:__subpackages__"],
    deps = [
        "@pigweed//pw_kernel/config:kernel_config_interface",
    ],
)

filegroup(
    name = "linker_script_template",
    srcs = ["target.ld.tmpl"],
    visibility = ["//target:__subpackages__"],
)