motiejus/hermetic_cc_toolchain
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Motiejus Jakštys 2021-06-10 13:34:58 +03:00 committed by Motiejus Jakštys
parent 4e48d6f1af
commit 31316fd30c
1 changed files with 58 additions and 54 deletions
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102
toolchain/defs.bzl
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@ -4,6 +4,7 @@ load(":zig_toolchain.bzl", "zig_cc_toolchain_config")
DEFAULT_TOOL_PATHS = { DEFAULT_TOOL_PATHS = {
"ar": "ar", "ar": "ar",
"gcc": "c++", # https://github.com/bazelbuild/bazel/issues/4644 "gcc": "c++", # https://github.com/bazelbuild/bazel/issues/4644
"cpp": "/usr/bin/false", "cpp": "/usr/bin/false",
"gcov": "/usr/bin/false", "gcov": "/usr/bin/false",
"nm": "/usr/bin/false", "nm": "/usr/bin/false",
@ -18,78 +19,81 @@ DEFAULT_INCLUDE_DIRECTORIES = [
] ]
# https://github.com/ziglang/zig/blob/0cfa39304b18c6a04689bd789f5dc4d035ec43b0/src/main.zig#L2962-L2966 # https://github.com/ziglang/zig/blob/0cfa39304b18c6a04689bd789f5dc4d035ec43b0/src/main.zig#L2962-L2966
TARGET_CONFIGS = [ TARGET_CONFIGS_LISTOFLISTS = [[
struct( struct(
target = "x86_64-macos-gnu", target="{}-macos-gnu".format(cpu),
includes = [ includes=[
"libunwind/include", "libunwind/include",
"libc/include/any-macos-any", "libc/include/any-macos-any",
"libc/include/x86_64-macos-any", "libc/include/{}-macos-any".format(cpu),
"libc/include/x86_64-macos-gnu", "libc/include/{}-macos-gnu".format(cpu),
], ],
# linkopts=["-lc++", "-lc++abi"], # linkopts=["-lc++", "-lc++abi"],
linkopts = [], linkopts=[],
copts = [], copts=[],
bazel_target_cpu = "darwin", bazel_target_cpu="darwin",
constraint_values = [ constraint_values=[
"@platforms//os:macos", "@platforms//os:macos",
"@platforms//cpu:x86_64", "@platforms//cpu:{}".format(cpu),
], ],
tool_paths = {"ld": "ld64.lld"}, tool_paths={"ld": "ld64.lld"},
), ),
] + [
struct( struct(
target = "x86_64-linux-gnu", target="{}-linux-gnu".format(cpu),
target_suffix = ".2.19", target_suffix = ".2.19",
includes = [ includes=[
"libunwind/include", "libunwind/include",
"libc/include/generic-glibc", "libc/include/generic-glibc",
"libc/include/any-linux-any", "libc/include/any-linux-any",
"libc/include/x86_64-linux-gnu", "libc/include/{}-linux-gnu".format(cpu),
"libc/include/x86_64-linux-any", "libc/include/{}-linux-any".format(cpu),
], ],
linkopts = ["-lc++", "-lc++abi"], linkopts=["-lc++", "-lc++abi"],
copts = [], copts=[],
bazel_target_cpu = "k8", bazel_target_cpu="k8",
constraint_values = [ constraint_values=[
"@platforms//os:linux", "@platforms//os:linux",
"@platforms//cpu:x86_64", "@platforms//cpu:{}".format(cpu),
], ],
tool_paths = {"ld": "ld.lld"}, tool_paths={"ld": "ld.lld"},
), ),
struct( struct(
target = "x86_64-linux-musl", target="{}-linux-musl".format(cpu),
includes = [ includes=[
"libc/include/generic-musl", "libc/include/generic-musl",
"libc/include/any-linux-any", "libc/include/any-linux-any",
"libc/include/x86_64-linux-musl", "libc/include/{}-linux-musl".format(cpu),
"libc/include/x86_64-linux-any", "libc/include/{}-linux-any".format(cpu),
], ],
linkopts = [], linkopts=[],
copts = ["-D_LIBCPP_HAS_MUSL_LIBC", "-D_LIBCPP_HAS_THREAD_API_PTHREAD"], copts=["-D_LIBCPP_HAS_MUSL_LIBC", "-D_LIBCPP_HAS_THREAD_API_PTHREAD"],
bazel_target_cpu = "k8", bazel_target_cpu="k8",
constraint_values = [ constraint_values=[
"@platforms//os:linux", "@platforms//os:linux",
"@platforms//cpu:x86_64", "@platforms//cpu:{}".format(cpu),
":musl", ":musl",
], ],
tool_paths = {"ld": "ld.lld"}, tool_paths={"ld": "ld.lld"},
), ),
] ] for cpu in ("x86_64", "aarch64")]
TARGET_CONFIGS = [val for sublist in TARGET_CONFIGS_LISTOFLISTS for val in sublist]
def toolchain_repositories(): def toolchain_repositories():
zig_repository( zig_repository(
name = "zig_sdk", name = "zig_sdk",
version = "0.8.0", version = "0.8.0",
url_format = "https://ziglang.org/download/{version}/zig-{host_platform}-{version}.tar.xz", url_format = "https://ziglang.org/download/{version}/zig-{host_platform}-{version}.tar.xz",
host_platform_sha256 = { host_platform_sha256 = {
"linux-x86_64": "502625d3da3ae595c5f44a809a87714320b7a40e6dff4a895b5fa7df3391d01e", "linux-x86_64": "502625d3da3ae595c5f44a809a87714320b7a40e6dff4a895b5fa7df3391d01e",
"macos-x86_64": "279f9360b5cb23103f0395dc4d3d0d30626e699b1b4be55e98fd985b62bc6fbe", "macos-x86_64": "279f9360b5cb23103f0395dc4d3d0d30626e699b1b4be55e98fd985b62bc6fbe",
}, },
host_platform_include_root = { host_platform_include_root = {
"macos-x86_64": "lib/zig/", "macos-x86_64": "lib/zig/",
"linux-x86_64": "lib/", "linux-x86_64": "lib/",
}, }
) )
def register_all_toolchains(): def register_all_toolchains():
@ -134,8 +138,8 @@ def _zig_repository_impl(repository_ctx):
zig_include_root = repository_ctx.attr.host_platform_include_root[host_platform] zig_include_root = repository_ctx.attr.host_platform_include_root[host_platform]
zig_sha256 = repository_ctx.attr.host_platform_sha256[host_platform] zig_sha256 = repository_ctx.attr.host_platform_sha256[host_platform]
format_vars = { format_vars = {
"version": repository_ctx.attr.version, "version" : repository_ctx.attr.version,
"host_platform": host_platform, "host_platform" : host_platform,
} }
zig_url = repository_ctx.attr.url_format.format(**format_vars) zig_url = repository_ctx.attr.url_format.format(**format_vars)
@ -147,8 +151,8 @@ def _zig_repository_impl(repository_ctx):
for zig_tool in ZIG_TOOLS: for zig_tool in ZIG_TOOLS:
repository_ctx.file( repository_ctx.file(
ZIG_TOOL_PATH.format(zig_tool = zig_tool), ZIG_TOOL_PATH.format(zig_tool=zig_tool),
ZIG_TOOL_WRAPPER.format(zig = str(repository_ctx.path("zig")), zig_tool = zig_tool), ZIG_TOOL_WRAPPER.format(zig=str(repository_ctx.path("zig")), zig_tool=zig_tool),
) )
absolute_path = json.encode(str(repository_ctx.path(""))) absolute_path = json.encode(str(repository_ctx.path("")))
@ -177,9 +181,9 @@ def filegroup(name, **kwargs):
return ":" + name return ":" + name
def zig_build_macro(absolute_path, zig_include_root): def zig_build_macro(absolute_path, zig_include_root):
filegroup(name = "empty") filegroup(name="empty")
filegroup(name = "zig_compiler", srcs = ["zig"]) filegroup(name="zig_compiler", srcs=["zig"])
filegroup(name = "lib/std", srcs = native.glob(["lib/std/**"])) filegroup(name="lib/std", srcs=native.glob(["lib/std/**"]))
native.constraint_setting(name = "libc") native.constraint_setting(name = "libc")
@ -207,7 +211,7 @@ def zig_build_macro(absolute_path, zig_include_root):
for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes: for d in DEFAULT_INCLUDE_DIRECTORIES + target_config.includes:
d = zig_include_root + d d = zig_include_root + d
if d not in lazy_filegroups: if d not in lazy_filegroups:
lazy_filegroups[d] = filegroup(name = d, srcs = native.glob([d + "/**"])) lazy_filegroups[d] = filegroup(name=d, srcs=native.glob([d + "/**"]))
compiler_srcs.append(lazy_filegroups[d]) compiler_srcs.append(lazy_filegroups[d])
cxx_builtin_include_directories.append(absolute_path + "/" + d) cxx_builtin_include_directories.append(absolute_path + "/" + d)
@ -216,19 +220,19 @@ def zig_build_macro(absolute_path, zig_include_root):
if path[0] == "/": if path[0] == "/":
absolute_tool_paths[name] = path absolute_tool_paths[name] = path
continue continue
tool_path = ZIG_TOOL_PATH.format(zig_tool = path) tool_path = ZIG_TOOL_PATH.format(zig_tool=path)
absolute_tool_paths[name] = "%s/%s" % (absolute_path, tool_path) absolute_tool_paths[name] = "%s/%s" % (absolute_path, tool_path)
tool_srcs[name].append(tool_path) tool_srcs[name].append(tool_path)
ar_files = filegroup(name = target + "_ar_files", srcs = ar_srcs) ar_files = filegroup(name=target + "_ar_files", srcs=ar_srcs)
linker_files = filegroup(name = target + "_linker_files", srcs = linker_srcs) linker_files = filegroup(name=target + "_linker_files", srcs=linker_srcs)
compiler_files = filegroup(name = target + "_compiler_files", srcs = compiler_srcs) compiler_files = filegroup(name=target + "_compiler_files", srcs=compiler_srcs)
all_files = filegroup(name = target + "_all_files", srcs = all_srcs + [ar_files, linker_files, compiler_files]) all_files = filegroup(name=target + "_all_files", srcs=all_srcs + [ar_files, linker_files, compiler_files])
zig_cc_toolchain_config( zig_cc_toolchain_config(
name = target + "_cc_toolchain_config", name = target + "_cc_toolchain_config",
target = target, target = target,
target_suffix = getattr(target_config, "target_suffix", ""), target_suffix = getattr(target_config, 'target_suffix', ''),
tool_paths = absolute_tool_paths, tool_paths = absolute_tool_paths,
cxx_builtin_include_directories = cxx_builtin_include_directories, cxx_builtin_include_directories = cxx_builtin_include_directories,
copts = target_config.copts, copts = target_config.copts,
@ -260,7 +264,7 @@ def zig_build_macro(absolute_path, zig_include_root):
toolchains = { toolchains = {
target_config.bazel_target_cpu: ":%s_cc_toolchain" % target, target_config.bazel_target_cpu: ":%s_cc_toolchain" % target,
}, },
tags = ["manual"], tags = ["manual"]
) )
native.toolchain( native.toolchain(