mirror of https://github.com/bazelbuild/rules_cc
Rule-based toolchain example
This commit is contained in:
Armando Montanez
parent
0bc1ba56ef
commit
2bdc5d9a6b
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examples/rule_based_toolchain
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/bazel-*
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/examples/rule_based_toolchain/bazel-*
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# Do not use the default toolchain.
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build --repo_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=0
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# Enable rule-based toolchains.
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build --@rules_cc//cc/toolchains:experimental_enable_rule_based_toolchains=True
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7.2.1
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cc_test(
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name = "quick_test",
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srcs = ["quick_test.cc"],
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deps = [
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"//dynamic_answer",
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"//static_answer",
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"@googletest//:gtest",
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"@googletest//:gtest_main",
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],
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)
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module(
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name = "rule_based_toolchain",
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version = "0.0.1",
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)
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bazel_dep(name = "googletest", version = "1.15.2")
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bazel_dep(name = "skylib", version = "1.7.1")
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bazel_dep(name = "rules_cc")
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local_path_override(module_name = "rules_cc", path = "../..")
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http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
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http_archive(
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name = "clang-linux-x86_64",
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build_file = "//toolchain:clang.BUILD",
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sha256 = "9042f89df9c13a2bf28e16ce34dfe22934b59b5d8390e94b030bb378bdb3c898",
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type = "zip",
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url = "https://chrome-infra-packages.appspot.com/dl/fuchsia/third_party/clang/linux-amd64/+/git_revision:0cfd03ac0d3f9713090a581bda07584754c73a49",
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)
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http_archive(
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name = "linux_sysroot",
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build_file = "//toolchain:linux_sysroot.BUILD",
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sha256 = "f45ca0d8b46810b94d2a7dbc65f9092337d6a9568b260b51173a5ab9314da25e",
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type = "zip",
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url = "https://chrome-infra-packages.appspot.com/dl/fuchsia/third_party/sysroot/bionic/+/git_revision:702eb9654703a7cec1cadf93a7e3aa269d053943",
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)
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register_toolchains(
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[
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"//toolchain:host-linux-x86_64",
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],
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dev_dependency = True,
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)
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@ -0,0 +1,137 @@
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{
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"lockFileVersion": 11,
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"registryFileHashes": {
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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||||
},
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||||
"selectedYankedVersions": {},
|
||||
"moduleExtensions": {
|
||||
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|
||||
"general": {
|
||||
"bzlTransitiveDigest": "ltCGFbl/LQQZXn/LEMXfKX7pGwyqNiOCHcmiQW0tmjM=",
|
||||
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|
||||
"recordedFileInputs": {},
|
||||
"recordedDirentsInputs": {},
|
||||
"envVariables": {},
|
||||
"generatedRepoSpecs": {
|
||||
"local_config_apple_cc": {
|
||||
"bzlFile": "@@apple_support~//crosstool:setup.bzl",
|
||||
"ruleClassName": "_apple_cc_autoconf",
|
||||
"attributes": {}
|
||||
},
|
||||
"local_config_apple_cc_toolchains": {
|
||||
"bzlFile": "@@apple_support~//crosstool:setup.bzl",
|
||||
"ruleClassName": "_apple_cc_autoconf_toolchains",
|
||||
"attributes": {}
|
||||
}
|
||||
},
|
||||
"recordedRepoMappingEntries": [
|
||||
[
|
||||
"apple_support~",
|
||||
"bazel_tools",
|
||||
"bazel_tools"
|
||||
]
|
||||
]
|
||||
}
|
||||
},
|
||||
"@@platforms//host:extension.bzl%host_platform": {
|
||||
"general": {
|
||||
"bzlTransitiveDigest": "xelQcPZH8+tmuOHVjL9vDxMnnQNMlwj0SlvgoqBkm4U=",
|
||||
"usagesDigest": "V1R2Y2oMxKNfx2WCWpSCaUV1WefW1o8HZGm3v1vHgY4=",
|
||||
"recordedFileInputs": {},
|
||||
"recordedDirentsInputs": {},
|
||||
"envVariables": {},
|
||||
"generatedRepoSpecs": {
|
||||
"host_platform": {
|
||||
"bzlFile": "@@platforms//host:extension.bzl",
|
||||
"ruleClassName": "host_platform_repo",
|
||||
"attributes": {}
|
||||
}
|
||||
},
|
||||
"recordedRepoMappingEntries": []
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
licenses(["notice"]) # Apache 2.0
|
||||
|
||||
cc_library(
|
||||
name = "headers",
|
||||
includes = ["public"],
|
||||
hdrs = ["public/dynamic_answer.h"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
cc_library(
|
||||
name = "answer",
|
||||
srcs = ["dynamic_answer.c"],
|
||||
deps = [":headers"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
|
||||
cc_shared_library(
|
||||
name = "shared_library",
|
||||
deps = [":answer"],
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
# Forces linkage as a shared library.
|
||||
cc_library(
|
||||
name = "dynamic_answer",
|
||||
deps = [":headers"],
|
||||
srcs = [":shared_library"],
|
||||
)
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
#include "dynamic_answer.h"
|
||||
|
||||
int dynamic_answer() {
|
||||
return 24;
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
#ifndef DYNAMIC_ANSWER_PUBLIC_DYNAMIC_ANSWER_H_
|
||||
#define DYNAMIC_ANSWER_PUBLIC_DYNAMIC_ANSWER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif // __cplusplus
|
||||
|
||||
int dynamic_answer(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif // __cplusplus
|
||||
|
||||
#endif // DYNAMIC_ANSWER_PUBLIC_DYNAMIC_ANSWER_H_
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
#include <gtest/gtest.h>
|
||||
|
||||
#include "dynamic_answer.h"
|
||||
#include "static_answer.h"
|
||||
|
||||
TEST(Static, ProperlyLinked) {
|
||||
EXPECT_EQ(static_answer(), 42);
|
||||
}
|
||||
|
||||
TEST(Dynamic, ProperlyLinked) {
|
||||
EXPECT_EQ(dynamic_answer(), 24);
|
||||
}
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
licenses(["notice"]) # Apache 2.0
|
||||
|
||||
cc_library(
|
||||
name = "answer",
|
||||
includes = ["public"],
|
||||
hdrs = ["public/static_answer.h"],
|
||||
srcs = ["static_answer.cc"],
|
||||
linkstatic = True,
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
# TODO: This should be a cc_static_library when that's supported.
|
||||
alias(
|
||||
name = "static_answer",
|
||||
actual = ":answer",
|
||||
)
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
#ifndef STATIC_ANSWER_PUBLIC_STATIC_ANSWER_H_
|
||||
#define STATIC_ANSWER_PUBLIC_STATIC_ANSWER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif // __cplusplus
|
||||
|
||||
int static_answer(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif // __cplusplus
|
||||
|
||||
#endif // STATIC_ANSWER_PUBLIC_STATIC_ANSWER_H_
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
#include "static_answer.h"
|
||||
|
||||
extern "C" int static_answer() {
|
||||
return 42;
|
||||
}
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
load("@rules_cc//cc/toolchains:args.bzl", "cc_args")
|
||||
load("@rules_cc//cc/toolchains:toolchain.bzl", "cc_toolchain")
|
||||
|
||||
# For now, each toolchain is only declared to be compatible
|
||||
# when exec_platform == target_platform.
|
||||
PLATFORMS = {
|
||||
"linux-x86_64": [
|
||||
"@platforms//os:linux",
|
||||
"@platforms//cpu:x86_64",
|
||||
],
|
||||
}
|
||||
|
||||
cc_args(
|
||||
name = "warnings",
|
||||
actions = [
|
||||
"@rules_cc//cc/toolchains/actions:c_compile",
|
||||
"@rules_cc//cc/toolchains/actions:cpp_compile_actions",
|
||||
]
|
||||
args = [
|
||||
"-Wall",
|
||||
"-Wextra",
|
||||
"-Wpedantic",
|
||||
],
|
||||
)
|
||||
|
||||
[
|
||||
cc_toolchain(
|
||||
name = "host-{}-config".format(platform),
|
||||
args = select({
|
||||
"@platforms//os:linux": [
|
||||
"@linux_sysroot//:sysroot",
|
||||
],
|
||||
"//conditions:default": [],
|
||||
}) + [
|
||||
":warnings",
|
||||
],
|
||||
tools = "@clang-{}//:all_tools".format(platform),
|
||||
known_features = ["@rules_cc//cc/toolchains/args:experimental_replace_legacy_action_config_features"],
|
||||
enabled_features = ["@rules_cc//cc/toolchains/args:experimental_replace_legacy_action_config_features"],
|
||||
target_compatible_with = constraints,
|
||||
)
|
||||
for platform_name, constraints in PLATFORMS.items()
|
||||
]
|
||||
|
||||
[
|
||||
toolchain(
|
||||
name = "host-{}".format(platform),
|
||||
exec_compatible_with = constraints,
|
||||
target_compatible_with = constraints,
|
||||
)
|
||||
toolchain = ":host_toolchain",
|
||||
toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
|
||||
]
|
||||
|
|
@ -0,0 +1,217 @@
|
|||
load("@rules_cc//cc/toolchains:tool.bzl", "cc_tool")
|
||||
load("@rules_cc//cc/toolchains:tool_map.bzl", "cc_tool_map")
|
||||
load("@bazel_skylib//rules/directory:directory.bzl", "directory")
|
||||
load("@bazel_skylib//rules/directory:subdirectory.bzl", "subdirectory")
|
||||
load("@bazel_skylib//lib:selects.bzl", "selects")
|
||||
|
||||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
licenses(["notice"])
|
||||
|
||||
# Directory-based rules in this toolchain only referece things in
|
||||
# lib/ or include/ subdirectories.
|
||||
directory(
|
||||
name = "toolchain_root",
|
||||
srcs = glob([
|
||||
"lib/**",
|
||||
"include/**",
|
||||
]),
|
||||
)
|
||||
|
||||
#####################
|
||||
# Tools #
|
||||
#####################
|
||||
|
||||
alias(
|
||||
name = "all_tools",
|
||||
actual = select({
|
||||
"@platforms//os:macos": ":macos_tools",
|
||||
"//conditions:default": ":default_tools",
|
||||
})
|
||||
)
|
||||
|
||||
COMMON_TOOLS = {
|
||||
"@rules_cc//cc/toolchains/actions:assembly_actions": ":asm",
|
||||
"@rules_cc//cc/toolchains/actions:c_compile": ":clang",
|
||||
"@rules_cc//cc/toolchains/actions:cpp_compile_actions": ":clang++",
|
||||
"@rules_cc//cc/toolchains/actions:link_actions": ":lld",
|
||||
"@rules_cc//cc/toolchains/actions:objcopy_embed_data": ":llvm-objcopy",
|
||||
"@rules_cc//cc/toolchains/actions:strip": ":llvm-strip",
|
||||
}
|
||||
|
||||
cc_tool_map(
|
||||
name = "default_tools",
|
||||
tools = COMMON_TOOLS | {
|
||||
"@rules_cc//cc/toolchains/actions:ar_actions": ":llvm-ar"
|
||||
},
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
cc_tool_map(
|
||||
name = "macos_tools",
|
||||
tools = COMMON_TOOLS | {
|
||||
"@rules_cc//cc/toolchains/actions:ar_actions": ":llvm-libtool-darwin"
|
||||
},
|
||||
visibility = ["//visibility:private"],
|
||||
)
|
||||
|
||||
# TODO: https://github.com/bazelbuild/rules_cc/issues/235 - Workaround until
|
||||
# Bazel has a more robust way to implement `cc_tool_map`.
|
||||
alias(
|
||||
name = "asm",
|
||||
actual = ":clang",
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "clang",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/clang.exe",
|
||||
"//conditions:default": "//:bin/clang",
|
||||
}),
|
||||
data = glob([
|
||||
"bin/llvm",
|
||||
"include/**",
|
||||
"lib/clang/**/include/**",
|
||||
]),
|
||||
allowlist_include_directories = [
|
||||
":lib-clang-include",
|
||||
],
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "clang++",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/clang++.exe",
|
||||
"//conditions:default": "//:bin/clang++",
|
||||
}),
|
||||
data = glob([
|
||||
"bin/llvm",
|
||||
"include/**",
|
||||
"lib/clang/**/include/**",
|
||||
]),
|
||||
allowlist_include_directories = [
|
||||
":include-x86_64-unknown-linux-gnu-c++-v1",
|
||||
":include-c++-v1",
|
||||
":lib-clang-include",
|
||||
],
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "lld",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/clang++.exe",
|
||||
"//conditions:default": "//:bin/clang++",
|
||||
}),
|
||||
data = glob([
|
||||
"bin/llvm",
|
||||
"bin/lld*",
|
||||
"bin/ld*",
|
||||
"lib/**/*.a",
|
||||
"lib/**/*.so*",
|
||||
"lib/**/*.o",
|
||||
]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-ar",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-ar.exe",
|
||||
"//conditions:default": "//:bin/llvm-ar",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-libtool-darwin",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-libtool-darwin.exe",
|
||||
"//conditions:default": "//:bin/llvm-libtool-darwin",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-objcopy",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-objcopy.exe",
|
||||
"//conditions:default": "//:bin/llvm-objcopy",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-objdump",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-objdump.exe",
|
||||
"//conditions:default": "//:bin/llvm-objdump",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-cov",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-cov.exe",
|
||||
"//conditions:default": "//:bin/llvm-cov",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "llvm-strip",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/llvm-strip.exe",
|
||||
"//conditions:default": "//:bin/llvm-strip",
|
||||
}),
|
||||
data = glob(["bin/llvm"]),
|
||||
)
|
||||
|
||||
cc_tool(
|
||||
name = "clang-tidy",
|
||||
src = select({
|
||||
"@platforms//os:windows": "//:bin/clang-tidy.exe",
|
||||
"//conditions:default": "//:bin/clang-tidy",
|
||||
}),
|
||||
data = glob([
|
||||
"bin/llvm",
|
||||
"include/**",
|
||||
"lib/clang/**/include/**",
|
||||
]) + select({
|
||||
"@platforms//os:linux": ["@linux_sysroot//:root"],
|
||||
"//conditions:default": [],
|
||||
}),
|
||||
)
|
||||
|
||||
#####################
|
||||
# Arguments #
|
||||
#####################
|
||||
|
||||
# None...
|
||||
|
||||
#####################
|
||||
# Features #
|
||||
#####################
|
||||
|
||||
# None...
|
||||
|
||||
#####################
|
||||
# Builtins #
|
||||
#####################
|
||||
|
||||
subdirectory(
|
||||
name = "include-c++-v1",
|
||||
parent = ":toolchain_root",
|
||||
path = "include/c++/v1",
|
||||
)
|
||||
|
||||
subdirectory(
|
||||
name = "lib-clang-include",
|
||||
parent = ":toolchain_root",
|
||||
path = "lib/clang/19/include",
|
||||
)
|
||||
|
||||
subdirectory(
|
||||
name = "include-x86_64-unknown-linux-gnu-c++-v1",
|
||||
parent = ":toolchain_root",
|
||||
path = "include/x86_64-unknown-linux-gnu/c++/v1",
|
||||
)
|
||||
|
|
@ -0,0 +1,36 @@
|
|||
load("@bazel_skylib//rules/directory:directory.bzl", "directory")
|
||||
load("@bazel_skylib//rules/directory:subdirectory.bzl", "subdirectory")
|
||||
load("@rules_cc//cc/toolchains/args:sysroot.bzl", "cc_sysroot")
|
||||
|
||||
package(default_visibility = ["//visibility:public"])
|
||||
|
||||
cc_sysroot(
|
||||
name = "sysroot",
|
||||
sysroot = ":root",
|
||||
data = [":root"],
|
||||
implicit_include_directories = [
|
||||
":usr-local-include",
|
||||
":usr-include-x86_64-linux-gnu",
|
||||
":usr-include",
|
||||
],
|
||||
)
|
||||
|
||||
directory(
|
||||
name = "root",
|
||||
srcs = glob(["**/*"]),
|
||||
)
|
||||
|
||||
subdirectory(
|
||||
name = "usr-local-include",
|
||||
path = "usr/local/include",
|
||||
)
|
||||
|
||||
subdirectory(
|
||||
name = "usr-include-x86_64-linux-gnu",
|
||||
path = "usr/include/x86_64-linux-gnu",
|
||||
)
|
||||
|
||||
subdirectory(
|
||||
name = "usr-include",
|
||||
path = "usr/include",
|
||||
)
|
||||
Loading…
Reference in New Issue