load("@rules_cc//cc:defs.bzl", "cc_toolchain")
load("//build/toolchain:cc_toolchain_config.bzl", "host_cc_toolchain_config")

# This file defines //build/toolchain/musl-host-gcc:musl_host_toolchain.
#
# This is a C++ toolchain that uses GCC from the sandbox sysroot at hardcoded paths, with
# a pre-built sysroot tarball that targets Metropolis nodes with musl and Linux
# headers.  It's a superset of //build/toolchain:host_cc_toolchain.
#
# For more information, see README.md.

cc_toolchain(
    name = "musl_host_cc_k8_toolchain",
    all_files = ":musl_toolchain_files",
    ar_files = ":musl_toolchain_files",
    as_files = ":musl_toolchain_files",
    compiler_files = ":musl_toolchain_files",
    dwp_files = ":musl_toolchain_files",
    linker_files = ":musl_toolchain_files",
    objcopy_files = ":musl_toolchain_files",
    strip_files = ":musl_toolchain_files",
    supports_param_files = 0,
    toolchain_config = ":musl_host_cc_k8_toolchain_config",
    toolchain_identifier = "host-musl-k8-toolchain",
)

host_cc_toolchain_config(
    name = "musl_host_cc_k8_toolchain_config",
    gcc = "gcc-wrapper.sh",
    has_cpp = False,
    host_includes = [],
    is_glibc = False,
    sysroot = package_relative_label("@musl_sysroot//:all").workspace_root,
)

filegroup(
    name = "musl_toolchain_files",
    srcs = [
        ":gcc-wrapper.sh",
        ":musl.spec",
        "@musl_sysroot//:all",
    ],
)

config_setting(
    name = "is_static",
    flag_values = {"//build/platforms/linkmode:static": "True"},
)

toolchain(
    name = "musl_host_toolchain",
    exec_compatible_with = [
        "@platforms//cpu:x86_64",
        "@platforms//os:linux",
    ],
    target_compatible_with = [
        "@platforms//cpu:x86_64",
        "@platforms//os:linux",
    ],
    target_settings = [
        ":is_static",
    ],
    toolchain = ":musl_host_cc_k8_toolchain",
    toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
)