Move toolchain definitions to toolchains/
This commit is contained in:
laurynasl
Motiejus Jakštys
parent
723e6f051d
commit
eedfc3312e
@ -1,23 +1,7 @@
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load("@bazel_skylib//lib:shell.bzl", "shell")
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load("@bazel_skylib//lib:shell.bzl", "shell")
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load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
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load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
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load("@bazel_tools//tools/build_defs/repo:utils.bzl", "read_user_netrc", "use_netrc")
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load("@bazel_tools//tools/build_defs/repo:utils.bzl", "read_user_netrc", "use_netrc")
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load(":zig_toolchain.bzl", "zig_cc_toolchain_config")
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load("@bazel-zig-cc//toolchain/private:defs.bzl", "DEFAULT_INCLUDE_DIRECTORIES", "ZIG_TOOL_PATH", "target_structs")
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DEFAULT_TOOL_PATHS = {
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"ar": "ar",
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"gcc": "c++", # https://github.com/bazelbuild/bazel/issues/4644
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"cpp": "/usr/bin/false",
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"gcov": "/usr/bin/false",
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"nm": "/usr/bin/false",
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"objdump": "/usr/bin/false",
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"strip": "/usr/bin/false",
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}.items()
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DEFAULT_INCLUDE_DIRECTORIES = [
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"include",
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"libcxx/include",
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"libcxxabi/include",
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]
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_fcntl_map = """
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_fcntl_map = """
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GLIBC_2.2.5 {
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GLIBC_2.2.5 {
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@ -32,114 +16,6 @@ __asm__(".symver fcntl64, fcntl@GLIBC_2.2.5");
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#endif
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#endif
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"""
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"""
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# Zig supports even older glibcs than defined below, but we have tested only
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# down to 2.17.
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# $ zig targets | jq -r '.glibc[]' | sort -V
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_GLIBCS = [
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"2.17",
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"2.18",
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"2.19",
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"2.22",
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"2.23",
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"2.24",
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"2.25",
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"2.26",
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"2.27",
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"2.28",
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"2.29",
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"2.30",
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"2.31",
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"2.32",
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"2.33",
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"2.34",
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]
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def _target_darwin(gocpu, zigcpu):
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min_os = "10"
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if zigcpu == "aarch64":
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min_os = "11"
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return struct(
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gotarget = "darwin_{}".format(gocpu),
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zigtarget = "{}-macos-gnu".format(zigcpu),
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includes = [
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"libunwind/include",
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# TODO: Define a toolchain for each minimum OS version
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"libc/include/{}-macos.{}-gnu".format(zigcpu, min_os),
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"libc/include/any-macos.{}-any".format(min_os),
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"libc/include/any-macos-any",
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],
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linkopts = [],
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copts = [],
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bazel_target_cpu = "darwin",
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constraint_values = [
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"@platforms//os:macos",
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"@platforms//cpu:{}".format(zigcpu),
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],
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tool_paths = {"ld": "ld64.lld"},
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)
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def _target_linux_gnu(gocpu, zigcpu, glibc_version = ""):
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glibc_suffix = "gnu"
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if glibc_version != "":
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glibc_suffix = "gnu.{}".format(glibc_version)
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# https://github.com/ziglang/zig/issues/5882#issuecomment-888250676
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# fcntl_hack is only required for glibc 2.27 or less. We assume that
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# glibc_version == "" (autodetect) is running a recent glibc version, thus
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# adding this hack only when glibc is explicitly 2.27 or lower.
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fcntl_hack = False
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if glibc_version == "":
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# zig doesn't reliably detect the glibc version, so
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# often falls back to 2.17; the hack should be included.
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# https://github.com/ziglang/zig/issues/6469
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fcntl_hack = True
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else:
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# hack is required for 2.27 or less.
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fcntl_hack = glibc_version < "2.28"
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return struct(
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gotarget = "linux_{}_{}".format(gocpu, glibc_suffix),
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zigtarget = "{}-linux-{}".format(zigcpu, glibc_suffix),
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includes = [
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"libunwind/include",
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"libc/include/generic-glibc",
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"libc/include/any-linux-any",
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"libc/include/{}-linux-gnu".format(zigcpu),
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"libc/include/{}-linux-any".format(zigcpu),
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] + (["libc/include/x86-linux-any"] if zigcpu == "x86_64" else []),
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toplevel_include = ["glibc-hacks"] if fcntl_hack else [],
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compiler_extra_includes = ["glibc-hacks/glibchack-fcntl.h"] if fcntl_hack else [],
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linker_version_scripts = ["glibc-hacks/fcntl.map"] if fcntl_hack else [],
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linkopts = ["-lc++", "-lc++abi"],
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copts = [],
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bazel_target_cpu = "k8",
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constraint_values = [
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"@platforms//os:linux",
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"@platforms//cpu:{}".format(zigcpu),
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],
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tool_paths = {"ld": "ld.lld"},
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)
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def _target_linux_musl(gocpu, zigcpu):
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return struct(
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gotarget = "linux_{}_musl".format(gocpu),
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zigtarget = "{}-linux-musl".format(zigcpu),
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includes = [
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"libc/include/generic-musl",
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"libc/include/any-linux-any",
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"libc/include/{}-linux-musl".format(zigcpu),
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"libc/include/{}-linux-any".format(zigcpu),
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] + (["libc/include/x86-linux-any"] if zigcpu == "x86_64" else []),
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linkopts = ["-s", "-w"],
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copts = ["-D_LIBCPP_HAS_MUSL_LIBC", "-D_LIBCPP_HAS_THREAD_API_PTHREAD"],
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bazel_target_cpu = "k8",
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constraint_values = [
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"@platforms//os:linux",
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"@platforms//cpu:{}".format(zigcpu),
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],
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tool_paths = {"ld": "ld.lld"},
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)
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# Official recommended version. Should use this when we have a usable release.
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# Official recommended version. Should use this when we have a usable release.
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URL_FORMAT_RELEASE = "https://ziglang.org/download/{version}/zig-{host_platform}-{version}.tar.xz"
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URL_FORMAT_RELEASE = "https://ziglang.org/download/{version}/zig-{host_platform}-{version}.tar.xz"
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@ -192,7 +68,6 @@ def register_toolchains(
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toolchains = ["@zig_sdk//:toolchain:%s" % t for t in register]
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toolchains = ["@zig_sdk//:toolchain:%s" % t for t in register]
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native.register_toolchains(*toolchains)
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native.register_toolchains(*toolchains)
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ZIG_TOOL_PATH = "tools/{zig_tool}"
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ZIG_TOOL_WRAPPER = """#!/bin/bash
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ZIG_TOOL_WRAPPER = """#!/bin/bash
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set -e
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set -e
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@ -297,14 +172,7 @@ zig_repository = repository_rule(
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implementation = _zig_repository_impl,
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implementation = _zig_repository_impl,
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)
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)
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def _target_structs():
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ret = []
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for zigcpu, gocpu in (("x86_64", "amd64"), ("aarch64", "arm64")):
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ret.append(_target_darwin(gocpu, zigcpu))
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ret.append(_target_linux_musl(gocpu, zigcpu))
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for glibc in [""] + _GLIBCS:
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ret.append(_target_linux_gnu(gocpu, zigcpu, glibc))
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return ret
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def filegroup(name, **kwargs):
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def filegroup(name, **kwargs):
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native.filegroup(name = name, **kwargs)
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native.filegroup(name = name, **kwargs)
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@ -317,84 +185,8 @@ def declare_files(zig_include_root):
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lazy_filegroups = {}
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lazy_filegroups = {}
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for target_config in _target_structs():
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for target_config in target_structs():
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for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
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for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
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d = zig_include_root + d
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d = zig_include_root + d
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if d not in lazy_filegroups:
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if d not in lazy_filegroups:
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lazy_filegroups[d] = filegroup(name = d, srcs = native.glob([d + "/**"]))
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lazy_filegroups[d] = filegroup(name = d, srcs = native.glob([d + "/**"]))
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def declare_toolchains(absolute_path, zig_include_root):
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for target_config in _target_structs():
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gotarget = target_config.gotarget
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zigtarget = target_config.zigtarget
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cxx_builtin_include_directories = []
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for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
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d = zig_include_root + d
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cxx_builtin_include_directories.append(absolute_path + "/" + d)
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for d in getattr(target_config, "toplevel_include", []):
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cxx_builtin_include_directories.append(absolute_path + "/" + d)
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absolute_tool_paths = {}
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for name, path in target_config.tool_paths.items() + DEFAULT_TOOL_PATHS:
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if path[0] == "/":
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absolute_tool_paths[name] = path
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continue
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tool_path = ZIG_TOOL_PATH.format(zig_tool = path)
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absolute_tool_paths[name] = "%s/%s" % (absolute_path, tool_path)
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linkopts = target_config.linkopts
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copts = target_config.copts
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for s in getattr(target_config, "linker_version_scripts", []):
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linkopts = linkopts + ["-Wl,--version-script,%s/%s" % (absolute_path, s)]
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for incl in getattr(target_config, "compiler_extra_includes", []):
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copts = copts + ["-include", absolute_path + "/" + incl]
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zig_cc_toolchain_config(
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name = zigtarget + "_cc_config",
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target = zigtarget,
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tool_paths = absolute_tool_paths,
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cxx_builtin_include_directories = cxx_builtin_include_directories,
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copts = copts,
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linkopts = linkopts,
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target_cpu = target_config.bazel_target_cpu,
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target_system_name = "unknown",
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target_libc = "unknown",
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compiler = "clang",
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abi_version = "unknown",
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abi_libc_version = "unknown",
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)
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native.cc_toolchain(
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name = zigtarget + "_cc",
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toolchain_identifier = zigtarget + "-toolchain",
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toolchain_config = ":%s_cc_config" % zigtarget,
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all_files = "@zig_sdk//:zig",
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ar_files = "@zig_sdk//:zig",
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compiler_files = "@zig_sdk//:zig",
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linker_files = "@zig_sdk//:zig",
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dwp_files = "@zig_sdk//:empty",
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objcopy_files = "@zig_sdk//:empty",
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strip_files = "@zig_sdk//:empty",
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supports_param_files = 0,
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)
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# register two kinds of toolchain targets: Go and Zig conventions.
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# Go convention: amd64/arm64, linux/darwin
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native.toolchain(
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name = gotarget,
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exec_compatible_with = None,
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target_compatible_with = target_config.constraint_values,
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toolchain = ":%s_cc" % zigtarget,
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toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
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)
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# Zig convention: x86_64/aarch64, linux/macos
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native.toolchain(
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name = zigtarget,
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exec_compatible_with = None,
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target_compatible_with = target_config.constraint_values,
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toolchain = ":%s_cc" % zigtarget,
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toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
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)
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0
toolchain/private/BUILD
Normal file
0
toolchain/private/BUILD
Normal file
124
toolchain/private/defs.bzl
Normal file
124
toolchain/private/defs.bzl
Normal file
@ -0,0 +1,124 @@
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DEFAULT_INCLUDE_DIRECTORIES = [
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"include",
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"libcxx/include",
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"libcxxabi/include",
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]
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ZIG_TOOL_PATH = "tools/{zig_tool}"
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# Zig supports even older glibcs than defined below, but we have tested only
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# down to 2.17.
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# $ zig targets | jq -r '.glibc[]' | sort -V
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_GLIBCS = [
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"2.17",
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"2.18",
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"2.19",
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"2.22",
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"2.23",
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"2.24",
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"2.25",
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"2.26",
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"2.27",
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"2.28",
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"2.29",
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"2.30",
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"2.31",
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"2.32",
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"2.33",
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"2.34",
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]
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def target_structs():
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ret = []
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for zigcpu, gocpu in (("x86_64", "amd64"), ("aarch64", "arm64")):
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ret.append(_target_darwin(gocpu, zigcpu))
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ret.append(_target_linux_musl(gocpu, zigcpu))
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for glibc in [""] + _GLIBCS:
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ret.append(_target_linux_gnu(gocpu, zigcpu, glibc))
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return ret
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def _target_darwin(gocpu, zigcpu):
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min_os = "10"
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if zigcpu == "aarch64":
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min_os = "11"
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return struct(
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gotarget = "darwin_{}".format(gocpu),
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zigtarget = "{}-macos-gnu".format(zigcpu),
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includes = [
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"libunwind/include",
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# TODO: Define a toolchain for each minimum OS version
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"libc/include/{}-macos.{}-gnu".format(zigcpu, min_os),
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"libc/include/any-macos.{}-any".format(min_os),
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"libc/include/any-macos-any",
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],
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linkopts = [],
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copts = [],
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bazel_target_cpu = "darwin",
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constraint_values = [
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"@platforms//os:macos",
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"@platforms//cpu:{}".format(zigcpu),
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],
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tool_paths = {"ld": "ld64.lld"},
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)
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def _target_linux_gnu(gocpu, zigcpu, glibc_version = ""):
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glibc_suffix = "gnu"
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if glibc_version != "":
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glibc_suffix = "gnu.{}".format(glibc_version)
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# https://github.com/ziglang/zig/issues/5882#issuecomment-888250676
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# fcntl_hack is only required for glibc 2.27 or less. We assume that
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# glibc_version == "" (autodetect) is running a recent glibc version, thus
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# adding this hack only when glibc is explicitly 2.27 or lower.
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fcntl_hack = False
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if glibc_version == "":
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# zig doesn't reliably detect the glibc version, so
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# often falls back to 2.17; the hack should be included.
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# https://github.com/ziglang/zig/issues/6469
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fcntl_hack = True
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else:
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# hack is required for 2.27 or less.
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fcntl_hack = glibc_version < "2.28"
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return struct(
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gotarget = "linux_{}_{}".format(gocpu, glibc_suffix),
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zigtarget = "{}-linux-{}".format(zigcpu, glibc_suffix),
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includes = [
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"libunwind/include",
|
||||||
|
"libc/include/generic-glibc",
|
||||||
|
"libc/include/any-linux-any",
|
||||||
|
"libc/include/{}-linux-gnu".format(zigcpu),
|
||||||
|
"libc/include/{}-linux-any".format(zigcpu),
|
||||||
|
] + (["libc/include/x86-linux-any"] if zigcpu == "x86_64" else []),
|
||||||
|
toplevel_include = ["glibc-hacks"] if fcntl_hack else [],
|
||||||
|
compiler_extra_includes = ["glibc-hacks/glibchack-fcntl.h"] if fcntl_hack else [],
|
||||||
|
linker_version_scripts = ["glibc-hacks/fcntl.map"] if fcntl_hack else [],
|
||||||
|
linkopts = ["-lc++", "-lc++abi"],
|
||||||
|
copts = [],
|
||||||
|
bazel_target_cpu = "k8",
|
||||||
|
constraint_values = [
|
||||||
|
"@platforms//os:linux",
|
||||||
|
"@platforms//cpu:{}".format(zigcpu),
|
||||||
|
],
|
||||||
|
tool_paths = {"ld": "ld.lld"},
|
||||||
|
)
|
||||||
|
|
||||||
|
def _target_linux_musl(gocpu, zigcpu):
|
||||||
|
return struct(
|
||||||
|
gotarget = "linux_{}_musl".format(gocpu),
|
||||||
|
zigtarget = "{}-linux-musl".format(zigcpu),
|
||||||
|
includes = [
|
||||||
|
"libc/include/generic-musl",
|
||||||
|
"libc/include/any-linux-any",
|
||||||
|
"libc/include/{}-linux-musl".format(zigcpu),
|
||||||
|
"libc/include/{}-linux-any".format(zigcpu),
|
||||||
|
] + (["libc/include/x86-linux-any"] if zigcpu == "x86_64" else []),
|
||||||
|
linkopts = ["-s", "-w"],
|
||||||
|
copts = ["-D_LIBCPP_HAS_MUSL_LIBC", "-D_LIBCPP_HAS_THREAD_API_PTHREAD"],
|
||||||
|
bazel_target_cpu = "k8",
|
||||||
|
constraint_values = [
|
||||||
|
"@platforms//os:linux",
|
||||||
|
"@platforms//cpu:{}".format(zigcpu),
|
||||||
|
],
|
||||||
|
tool_paths = {"ld": "ld.lld"},
|
||||||
|
)
|
||||||
@ -1,4 +1,4 @@
|
|||||||
load("@bazel-zig-cc//toolchain:defs.bzl", "declare_toolchains")
|
load("@bazel-zig-cc//toolchain/toolchain:defs.bzl", "declare_toolchains")
|
||||||
|
|
||||||
package(
|
package(
|
||||||
default_visibility = ["//visibility:public"],
|
default_visibility = ["//visibility:public"],
|
||||||
|
|||||||
87
toolchain/toolchain/defs.bzl
Normal file
87
toolchain/toolchain/defs.bzl
Normal file
@ -0,0 +1,87 @@
|
|||||||
|
load("@bazel-zig-cc//toolchain:zig_toolchain.bzl", "zig_cc_toolchain_config")
|
||||||
|
load("@bazel-zig-cc//toolchain/private:defs.bzl", "DEFAULT_INCLUDE_DIRECTORIES", "ZIG_TOOL_PATH", "target_structs")
|
||||||
|
|
||||||
|
DEFAULT_TOOL_PATHS = {
|
||||||
|
"ar": "ar",
|
||||||
|
"gcc": "c++", # https://github.com/bazelbuild/bazel/issues/4644
|
||||||
|
"cpp": "/usr/bin/false",
|
||||||
|
"gcov": "/usr/bin/false",
|
||||||
|
"nm": "/usr/bin/false",
|
||||||
|
"objdump": "/usr/bin/false",
|
||||||
|
"strip": "/usr/bin/false",
|
||||||
|
}.items()
|
||||||
|
|
||||||
|
def declare_toolchains(absolute_path, zig_include_root):
|
||||||
|
for target_config in target_structs():
|
||||||
|
gotarget = target_config.gotarget
|
||||||
|
zigtarget = target_config.zigtarget
|
||||||
|
|
||||||
|
cxx_builtin_include_directories = []
|
||||||
|
for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
|
||||||
|
d = zig_include_root + d
|
||||||
|
cxx_builtin_include_directories.append(absolute_path + "/" + d)
|
||||||
|
for d in getattr(target_config, "toplevel_include", []):
|
||||||
|
cxx_builtin_include_directories.append(absolute_path + "/" + d)
|
||||||
|
|
||||||
|
absolute_tool_paths = {}
|
||||||
|
for name, path in target_config.tool_paths.items() + DEFAULT_TOOL_PATHS:
|
||||||
|
if path[0] == "/":
|
||||||
|
absolute_tool_paths[name] = path
|
||||||
|
continue
|
||||||
|
tool_path = ZIG_TOOL_PATH.format(zig_tool = path)
|
||||||
|
absolute_tool_paths[name] = "%s/%s" % (absolute_path, tool_path)
|
||||||
|
|
||||||
|
linkopts = target_config.linkopts
|
||||||
|
copts = target_config.copts
|
||||||
|
for s in getattr(target_config, "linker_version_scripts", []):
|
||||||
|
linkopts = linkopts + ["-Wl,--version-script,%s/%s" % (absolute_path, s)]
|
||||||
|
for incl in getattr(target_config, "compiler_extra_includes", []):
|
||||||
|
copts = copts + ["-include", absolute_path + "/" + incl]
|
||||||
|
|
||||||
|
zig_cc_toolchain_config(
|
||||||
|
name = zigtarget + "_cc_config",
|
||||||
|
target = zigtarget,
|
||||||
|
tool_paths = absolute_tool_paths,
|
||||||
|
cxx_builtin_include_directories = cxx_builtin_include_directories,
|
||||||
|
copts = copts,
|
||||||
|
linkopts = linkopts,
|
||||||
|
target_cpu = target_config.bazel_target_cpu,
|
||||||
|
target_system_name = "unknown",
|
||||||
|
target_libc = "unknown",
|
||||||
|
compiler = "clang",
|
||||||
|
abi_version = "unknown",
|
||||||
|
abi_libc_version = "unknown",
|
||||||
|
)
|
||||||
|
|
||||||
|
native.cc_toolchain(
|
||||||
|
name = zigtarget + "_cc",
|
||||||
|
toolchain_identifier = zigtarget + "-toolchain",
|
||||||
|
toolchain_config = ":%s_cc_config" % zigtarget,
|
||||||
|
all_files = "@zig_sdk//:zig",
|
||||||
|
ar_files = "@zig_sdk//:zig",
|
||||||
|
compiler_files = "@zig_sdk//:zig",
|
||||||
|
linker_files = "@zig_sdk//:zig",
|
||||||
|
dwp_files = "@zig_sdk//:empty",
|
||||||
|
objcopy_files = "@zig_sdk//:empty",
|
||||||
|
strip_files = "@zig_sdk//:empty",
|
||||||
|
supports_param_files = 0,
|
||||||
|
)
|
||||||
|
|
||||||
|
# register two kinds of toolchain targets: Go and Zig conventions.
|
||||||
|
# Go convention: amd64/arm64, linux/darwin
|
||||||
|
native.toolchain(
|
||||||
|
name = gotarget,
|
||||||
|
exec_compatible_with = None,
|
||||||
|
target_compatible_with = target_config.constraint_values,
|
||||||
|
toolchain = ":%s_cc" % zigtarget,
|
||||||
|
toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
|
||||||
|
)
|
||||||
|
|
||||||
|
# Zig convention: x86_64/aarch64, linux/macos
|
||||||
|
native.toolchain(
|
||||||
|
name = zigtarget,
|
||||||
|
exec_compatible_with = None,
|
||||||
|
target_compatible_with = target_config.constraint_values,
|
||||||
|
toolchain = ":%s_cc" % zigtarget,
|
||||||
|
toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
|
||||||
|
)
|
||||||
Loading…
Reference in New Issue
Block a user