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a19044051f
* Add bazel-zig-cc for a hermetic cc toolchain * gazelle * Remove llvm * remove wl * Add new URLs for renamed repo * gazelle * Update to v2.0.0-rc1 * bump to rc2 * Some PR feedback * use v2.0.0 from rc2 * Disable hermetic builds for mac and windows. * bump bazel version, add darwin hack * fix * Add the no-op emtpy cc toolchain code * typo and additional copy * update protobuf and fix vaticle warning * Revert "update protobuf and fix vaticle warning" This reverts commit 7bb4b6b564d2d588567d08dfdd3b9837c26d3c05. --------- Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
114 lines
4.0 KiB
Python
114 lines
4.0 KiB
Python
load("@bazel_tools//tools/cpp:unix_cc_configure.bzl", "configure_unix_toolchain")
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load(
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"@bazel_tools//tools/cpp:lib_cc_configure.bzl",
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"get_cpu_value",
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"resolve_labels",
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)
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"""
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This file is a copy of https://github.com/bazelbuild/bazel/blob/master/tools/cpp/cc_configure.bzl
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with some minor changes. The original file is licensed under Apache 2.0 license. The gist of this
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is that we want darwin to register the local toolchain and disregard the environment variable of
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BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN. We must support a local toolchain for darwin until
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hermetic_cc_toolchain supports darwin's sysroot in a hermetic way.
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"""
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def cc_autoconf_toolchains_impl(repository_ctx):
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"""Generate BUILD file with 'toolchain' targets for the local host C++ toolchain.
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Args:
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repository_ctx: repository context
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"""
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cpu_value = get_cpu_value(repository_ctx)
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if cpu_value.startswith("darwin"):
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paths = resolve_labels(repository_ctx, [
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"@bazel_tools//tools/cpp:BUILD.toolchains.tpl",
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])
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repository_ctx.template(
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"BUILD",
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paths["@bazel_tools//tools/cpp:BUILD.toolchains.tpl"],
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{"%{name}": get_cpu_value(repository_ctx)},
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)
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else:
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repository_ctx.file("BUILD", "# C++ toolchain autoconfiguration was disabled by BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN env variable.")
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def cc_autoconf_impl(repository_ctx, overriden_tools = dict()):
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"""Generate BUILD file with 'cc_toolchain' targets for the local host C++ toolchain.
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Args:
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repository_ctx: repository context
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overriden_tools: dict of tool paths to use instead of autoconfigured tools
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"""
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cpu_value = get_cpu_value(repository_ctx)
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if cpu_value.startswith("darwin"):
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print("Configuring local C++ toolchain for Darwin. This is non-hermetic and builds may " +
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"not be reproducible. Consider building on linux for a hermetic build.")
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configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools)
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else:
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paths = resolve_labels(repository_ctx, [
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"@bazel_tools//tools/cpp:BUILD.empty.tpl",
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"@bazel_tools//tools/cpp:empty_cc_toolchain_config.bzl",
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])
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repository_ctx.symlink(paths["@bazel_tools//tools/cpp:empty_cc_toolchain_config.bzl"], "cc_toolchain_config.bzl")
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repository_ctx.template("BUILD", paths["@bazel_tools//tools/cpp:BUILD.empty.tpl"], {
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"%{cpu}": get_cpu_value(repository_ctx),
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})
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cc_autoconf_toolchains = repository_rule(
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environ = [
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"BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN",
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],
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implementation = cc_autoconf_toolchains_impl,
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configure = True,
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)
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cc_autoconf = repository_rule(
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environ = [
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"ABI_LIBC_VERSION",
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"ABI_VERSION",
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"BAZEL_COMPILER",
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"BAZEL_HOST_SYSTEM",
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"BAZEL_CONLYOPTS",
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"BAZEL_CXXOPTS",
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"BAZEL_LINKOPTS",
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"BAZEL_LINKLIBS",
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"BAZEL_LLVM_COV",
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"BAZEL_LLVM_PROFDATA",
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"BAZEL_PYTHON",
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"BAZEL_SH",
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"BAZEL_TARGET_CPU",
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"BAZEL_TARGET_LIBC",
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"BAZEL_TARGET_SYSTEM",
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"BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN",
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"BAZEL_USE_LLVM_NATIVE_COVERAGE",
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"BAZEL_LLVM",
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"BAZEL_IGNORE_SYSTEM_HEADERS_VERSIONS",
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"USE_CLANG_CL",
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"CC",
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"CC_CONFIGURE_DEBUG",
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"CC_TOOLCHAIN_NAME",
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"CPLUS_INCLUDE_PATH",
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"DEVELOPER_DIR",
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"GCOV",
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"LIBTOOL",
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"HOMEBREW_RUBY_PATH",
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"SYSTEMROOT",
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"USER",
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],
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implementation = cc_autoconf_impl,
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configure = True,
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)
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def configure_nonhermetic_darwin():
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"""A C++ configuration rules that generate the crosstool file."""
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cc_autoconf_toolchains(name = "local_config_cc_toolchains")
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cc_autoconf(name = "local_config_cc")
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native.bind(name = "cc_toolchain", actual = "@local_config_cc//:toolchain")
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native.register_toolchains(
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# Use register_toolchain's target pattern expansion to register all toolchains in the package.
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"@local_config_cc_toolchains//:all",
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) |