Motiejus Jakštys
df11a2af38
changes: - upgrade from llvm 13 to llvm 14 - add --compress-debug-sections=zlib
224 lines
7.3 KiB
Python
224 lines
7.3 KiB
Python
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
|
|
load("@bazel_tools//tools/build_defs/repo:utils.bzl", "read_user_netrc", "use_netrc")
|
|
load("@bazel-zig-cc//toolchain/private:defs.bzl", "DEFAULT_INCLUDE_DIRECTORIES", "target_structs", "zig_tool_path")
|
|
|
|
_fcntl_map = """
|
|
GLIBC_2.2.5 {
|
|
fcntl;
|
|
};
|
|
"""
|
|
_fcntl_h = """
|
|
#ifdef __ASSEMBLER__
|
|
.symver fcntl64, fcntl@GLIBC_2.2.5
|
|
#else
|
|
__asm__(".symver fcntl64, fcntl@GLIBC_2.2.5");
|
|
#endif
|
|
"""
|
|
|
|
# Official recommended version. Should use this when we have a usable release.
|
|
URL_FORMAT_RELEASE = "https://ziglang.org/download/{version}/zig-{host_platform}-{version}.{_ext}"
|
|
|
|
# Caution: nightly releases are purged from ziglang.org after ~90 days. A real
|
|
# solution would be to allow the downstream project specify their own mirrors.
|
|
# This is explained in
|
|
# https://sr.ht/~motiejus/bazel-zig-cc/#alternative-download-urls and is
|
|
# awaiting my attention or your contribution.
|
|
URL_FORMAT_NIGHTLY = "https://ziglang.org/builds/zig-{host_platform}-{version}.{_ext}"
|
|
|
|
# Author's mirror that doesn't purge the nightlies so aggressively. I will be
|
|
# cleaning those up manually only after the artifacts are not in use for many
|
|
# months in bazel-zig-cc. dl.jakstys.lt is a small x86_64 server with an NVMe
|
|
# drive sitting in my home closet on a 1GB/s symmetric residential connection,
|
|
# which, as of writing, has been quite reliable.
|
|
URL_FORMAT_JAKSTYS = "https://dl.jakstys.lt/zig/zig-{host_platform}-{version}.{_ext}"
|
|
|
|
_VERSION = "0.10.0-dev.2977+7d2e14267"
|
|
|
|
_HOST_PLATFORM_SHA256 = {
|
|
"linux-aarch64": "91bc4450e475c22c8d65d0c419b389d70eddbce495f224672e755df8bce97592",
|
|
"linux-x86_64": "22faf5006338de0682bb4c62dc0f73e4df5fb837ecaff21570e4ed39dc63b9c1",
|
|
"macos-aarch64": "19b69c1b720f9694b6564ccd47cd15670b548e91c5e86c3906534bec5cc7c5ab",
|
|
"macos-x86_64": "bd3bb1349b1b0f7d9e50b3f2d52a83d92df4501cd97f6f0c4fd0c665e106e5d6",
|
|
"windows-x86_64": "7b2e7235eaae311bf004bd9702ad962b6650c1c497099de8596f660319803914",
|
|
}
|
|
|
|
_HOST_PLATFORM_EXT = {
|
|
"linux-aarch64": "tar.xz",
|
|
"linux-x86_64": "tar.xz",
|
|
"macos-aarch64": "tar.xz",
|
|
"macos-x86_64": "tar.xz",
|
|
"windows-x86_64": "zip",
|
|
}
|
|
|
|
def toolchains(
|
|
version = _VERSION,
|
|
url_formats = [URL_FORMAT_NIGHTLY, URL_FORMAT_JAKSTYS],
|
|
host_platform_sha256 = _HOST_PLATFORM_SHA256,
|
|
host_platform_ext = _HOST_PLATFORM_EXT):
|
|
"""
|
|
Download zig toolchain and declare bazel toolchains.
|
|
The platforms are not registered automatically, that should be done by
|
|
the user with register_toolchains() in the WORKSPACE file. See README
|
|
for possible choices.
|
|
"""
|
|
zig_repository(
|
|
name = "zig_sdk",
|
|
version = version,
|
|
url_formats = url_formats,
|
|
host_platform_sha256 = host_platform_sha256,
|
|
host_platform_ext = host_platform_ext,
|
|
host_platform_include_root = {
|
|
"linux-aarch64": "lib/zig/",
|
|
"linux-x86_64": "lib/",
|
|
"macos-aarch64": "lib/zig/",
|
|
"macos-x86_64": "lib/zig/",
|
|
"windows-x86_64": "lib/",
|
|
},
|
|
)
|
|
|
|
ZIG_TOOL_WRAPPER = """#!/bin/bash
|
|
set -e
|
|
|
|
if [[ -n "$TMPDIR" ]]; then
|
|
_cache_prefix=$TMPDIR
|
|
else
|
|
_cache_prefix="$HOME/.cache"
|
|
if [[ "$(uname)" = Darwin ]]; then
|
|
_cache_prefix="$HOME/Library/Caches"
|
|
fi
|
|
fi
|
|
export ZIG_LOCAL_CACHE_DIR="$_cache_prefix/bazel-zig-cc"
|
|
export ZIG_GLOBAL_CACHE_DIR=$ZIG_LOCAL_CACHE_DIR
|
|
|
|
exec "{zig}" "{zig_tool}" "$@"
|
|
"""
|
|
|
|
ZIG_TOOL_WRAPPER_WINDOWS = """@echo off
|
|
"{zig}" "{zig_tool}" %*
|
|
"""
|
|
|
|
_ZIG_TOOLS = [
|
|
"c++",
|
|
"cc",
|
|
"ar",
|
|
"ld.lld", # ELF
|
|
"ld64.lld", # Mach-O
|
|
"lld-link", # COFF
|
|
"wasm-ld", # WebAssembly
|
|
]
|
|
|
|
def _quote(s):
|
|
return "'" + s.replace("'", "'\\''") + "'"
|
|
|
|
def _zig_repository_impl(repository_ctx):
|
|
arch = repository_ctx.os.arch
|
|
if arch == "amd64":
|
|
arch = "x86_64"
|
|
|
|
os = repository_ctx.os.name.lower()
|
|
if os.startswith("mac os"):
|
|
os = "macos"
|
|
|
|
if os.startswith("windows"):
|
|
os = "windows"
|
|
|
|
host_platform = "{}-{}".format(os, arch)
|
|
|
|
zig_include_root = repository_ctx.attr.host_platform_include_root[host_platform]
|
|
zig_sha256 = repository_ctx.attr.host_platform_sha256[host_platform]
|
|
zig_ext = repository_ctx.attr.host_platform_ext[host_platform]
|
|
format_vars = {
|
|
"_ext": zig_ext,
|
|
"version": repository_ctx.attr.version,
|
|
"host_platform": host_platform,
|
|
}
|
|
|
|
urls = [uf.format(**format_vars) for uf in repository_ctx.attr.url_formats]
|
|
repository_ctx.download_and_extract(
|
|
auth = use_netrc(read_user_netrc(repository_ctx), urls, {}),
|
|
url = urls,
|
|
stripPrefix = "zig-{host_platform}-{version}/".format(**format_vars),
|
|
sha256 = zig_sha256,
|
|
)
|
|
|
|
for zig_tool in _ZIG_TOOLS:
|
|
zig_tool_wrapper = ZIG_TOOL_WRAPPER.format(
|
|
zig = str(repository_ctx.path("zig")),
|
|
zig_tool = zig_tool,
|
|
)
|
|
if os == "windows":
|
|
zig_tool_wrapper = ZIG_TOOL_WRAPPER_WINDOWS.format(
|
|
zig = str(repository_ctx.path("zig")).replace("/", "\\") + ".exe",
|
|
zig_tool = zig_tool,
|
|
)
|
|
|
|
repository_ctx.file(
|
|
zig_tool_path(os).format(zig_tool = zig_tool),
|
|
zig_tool_wrapper,
|
|
)
|
|
|
|
repository_ctx.file(
|
|
"glibc-hacks/fcntl.map",
|
|
content = _fcntl_map,
|
|
)
|
|
repository_ctx.file(
|
|
"glibc-hacks/glibchack-fcntl.h",
|
|
content = _fcntl_h,
|
|
)
|
|
|
|
for dest, src in {
|
|
"platform/BUILD": "//toolchain/platform:BUILD",
|
|
"toolchain/BUILD": "//toolchain/toolchain:BUILD",
|
|
"libc/BUILD": "//toolchain/libc:BUILD",
|
|
"libc_aware/platform/BUILD": "//toolchain/libc_aware/platform:BUILD",
|
|
"libc_aware/toolchain/BUILD": "//toolchain/libc_aware/toolchain:BUILD",
|
|
}.items():
|
|
repository_ctx.symlink(Label(src), dest)
|
|
|
|
for dest, src in {
|
|
"BUILD": "//toolchain:BUILD.sdk.bazel",
|
|
"private/BUILD": "//toolchain/private:BUILD.sdk.bazel",
|
|
}.items():
|
|
repository_ctx.template(
|
|
dest,
|
|
Label(src),
|
|
executable = False,
|
|
substitutions = {
|
|
"{absolute_path}": _quote(str(repository_ctx.path(""))),
|
|
"{os}": _quote(os),
|
|
"{zig_include_root}": _quote(zig_include_root),
|
|
},
|
|
)
|
|
|
|
zig_repository = repository_rule(
|
|
attrs = {
|
|
"version": attr.string(),
|
|
"host_platform_sha256": attr.string_dict(),
|
|
"url_formats": attr.string_list(allow_empty = False),
|
|
"host_platform_include_root": attr.string_dict(),
|
|
"host_platform_ext": attr.string_dict(),
|
|
},
|
|
implementation = _zig_repository_impl,
|
|
)
|
|
|
|
def filegroup(name, **kwargs):
|
|
native.filegroup(name = name, **kwargs)
|
|
return ":" + name
|
|
|
|
def declare_files(os, zig_include_root):
|
|
filegroup(name = "empty")
|
|
if os == "windows":
|
|
native.exports_files(["zig.exe"], visibility = ["//visibility:public"])
|
|
native.alias(name = "zig", actual = ":zig.exe")
|
|
else:
|
|
native.exports_files(["zig"], visibility = ["//visibility:public"])
|
|
filegroup(name = "lib/std", srcs = native.glob(["lib/std/**"]))
|
|
|
|
lazy_filegroups = {}
|
|
|
|
for target_config in target_structs():
|
|
for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
|
|
d = zig_include_root + d
|
|
if d not in lazy_filegroups:
|
|
lazy_filegroups[d] = filegroup(name = d, srcs = native.glob([d + "/**"]))
|