BUILD.bazel

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

load("@bazel_tools//tools/cpp:unix_cc_toolchain_config.bzl", "cc_toolchain_config")
load("@rules_cc//cc:defs.bzl", "cc_toolchain", "cc_toolchain_suite")

licenses(["notice"])  # Apache 2.0

filegroup(
    name = "empty",
    srcs = [],
)

filegroup(
    name = "compiler_deps",
    srcs = glob(
        ["zig/**"],
        allow_empty = True,
    ),
)

# This is the entry point for --crosstool_top.  Toolchains are found
# by lopping off the name of --crosstool_top and searching for
# the "${CPU}" entry in the toolchains attribute.
cc_toolchain_suite(
    name = "zig_suite",
    toolchains = {
        "x86_64-macos": ":cc-compiler-x86_64-macos",
        "x86_64-linux": ":cc-compiler-x86_64-linux",
        "x86_64-windows": ":cc-compiler-x86_64-windows",
    },
)

_CPUS = [
    "x86_64-macos",
    "x86_64-linux",
    "x86_64-windows",
]

[
    cc_toolchain(
        name = "cc-compiler-{}".format(cpu),
        all_files = ":compiler_deps",
        ar_files = ":compiler_deps",
        as_files = ":compiler_deps",
        compiler_files = ":compiler_deps",
        dwp_files = ":empty",
        linker_files = ":compiler_deps",
        module_map = None,
        objcopy_files = ":empty",
        strip_files = ":empty",
        supports_param_files = 1,
        toolchain_config = ":local-{}".format(cpu),
        toolchain_identifier = "local-{}".format(cpu),
    )
    for cpu in _CPUS
]

[
    cc_toolchain_config(
        name = "local-{}".format(cpu),
        abi_libc_version = "local",
        abi_version = "local",
        compile_flags = [
            "-U_FORTIFY_SOURCE",
            "-fstack-protector",
            "-Wall",
            "-fno-omit-frame-pointer",
        ],
        compiler = "compiler",
        coverage_compile_flags = ["--coverage"],
        coverage_link_flags = ["--coverage"],
        cpu = cpu,
        cxx_builtin_include_directories = [
            "/Users/steeve/code/github.com/znly/bazel_zig_toolchain/zig_toolchain/zig",
        ],
        cxx_flags = ["-std=c++0x"],
        dbg_compile_flags = ["-g"],
        host_system_name = "local",
        link_flags = [""],
        link_libs = [
            "-lstdc++",
            "-lm",
        ],
        opt_compile_flags = [
            "-g0",
            "-O2",
            "-D_FORTIFY_SOURCE=1",
            "-DNDEBUG",
            "-ffunction-sections",
            "-fdata-sections",
        ],
        opt_link_flags = [],
        supports_start_end_lib = False,
        target_libc = "local",
        target_system_name = "local",
        tool_paths = {
            "ar": "/usr/bin/false",
            "ld": "//usr/bin/false",
            "llvm-cov": "None",
            "cpp": "/usr/bin/false",
            "gcc": "/Users/steeve/code/github.com/znly/bazel_zig_toolchain/zig_toolchain/zig_cc_{}.sh".format(cpu),
            "dwp": "/usr/bin/false",
            "gcov": "None",
            "nm": "/usr/bin/false",
            "objcopy": "/usr/bin/false",
            "objdump": "/usr/bin/false",
            "strip": "/usr/bin/false",
        },
        toolchain_identifier = "local",
        unfiltered_compile_flags = [
            "-Wno-builtin-macro-redefined",
            "-D__DATE__=\"redacted\"",
            "-D__TIMESTAMP__=\"redacted\"",
            "-D__TIME__=\"redacted\"",
        ],
    )
    for cpu in _CPUS
]

zig_cc_x86_64-macos.sh

#!/bin/bash
export HOME=${PWD}
export ZIG_LOCAL_CACHE_DIR=${PWD}/.zig
$(dirname ${0})/zig/zig cc -target x86_64-macos "${@}"