vendor large parts of @bazel_tools//tools/cpp

core/BUILD.bazel

@@ -4,7 +4,7 @@ package(default_visibility = ["//visibility:public"])
 
 filegroup(
     name = "srcs",
-    srcs = glob(["**"]),
+    srcs = glob(["**"]) + ["//private/cc_toolchain:srcs"],
     visibility = ["//visibility:public"],
 )
 
@@ -24,9 +24,9 @@ bzl_library(
 bzl_library(
     name = "nixpkgs",
     srcs = [
+        "//private/cc_toolchain:srcs",
         "nixpkgs.bzl",
         "util.bzl",
-        "private/get_cpu_value.bzl",
     ],
     deps = [
         ":bazel_tools",

core/private/cc_toolchain/BUILD.bazel

@@ -0,0 +1,38 @@
+# Copyright 2018 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])  # Apache 2.0
+
+filegroup(
+    name = "empty",
+    srcs = [],
+)
+
+filegroup(
+    name = "bzl_srcs",
+    srcs = glob(["**/*.bzl"]),
+)
+
+filegroup(
+    name = "srcs",
+    srcs = glob(["**"]),
+)
+
+filegroup(
+    name = "lib_cc_configure",
+    srcs = ["lib_cc_configure.bzl"],
+)

core/private/cc_toolchain/BUILD.tpl

@@ -0,0 +1,142 @@
+# Copyright 2016 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This becomes the BUILD file for @local_config_cc// under non-BSD unixes.
+
+load(":cc_toolchain_config.bzl", "cc_toolchain_config")
+load(":armeabi_cc_toolchain_config.bzl", "armeabi_cc_toolchain_config")
+load("@rules_cc//cc:defs.bzl", "cc_toolchain", "cc_toolchain_suite")
+
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])  # Apache 2.0
+
+cc_library(name = "empty_lib")
+
+# Label flag for extra libraries to be linked into every binary.
+# TODO(bazel-team): Support passing flag multiple times to build a list.
+label_flag(
+    name = "link_extra_libs",
+    build_setting_default = ":empty_lib",
+)
+
+# The final extra library to be linked into every binary target. This collects
+# the above flag, but may also include more libraries depending on config.
+cc_library(
+    name = "link_extra_lib",
+    deps = [
+        ":link_extra_libs",
+    ],
+)
+
+cc_library(
+    name = "malloc",
+)
+
+filegroup(
+    name = "empty",
+    srcs = [],
+)
+
+filegroup(
+    name = "cc_wrapper",
+    srcs = ["cc_wrapper.sh"],
+)
+
+filegroup(
+    name = "validate_static_library",
+    srcs = ["validate_static_library.sh"],
+)
+
+filegroup(
+    name = "deps_scanner_wrapper",
+    srcs = ["deps_scanner_wrapper.sh"],
+)
+filegroup(
+    name = "compiler_deps",
+    srcs = glob(["extra_tools/**"], allow_empty = True) + [%{cc_compiler_deps}],
+)
+
+# This is the entry point for --crosstool_top.  Toolchains are found
+# by lopping off the name of --crosstool_top and searching for
+# the "${CPU}" entry in the toolchains attribute.
+cc_toolchain_suite(
+    name = "toolchain",
+    toolchains = {
+        "%{name}|%{compiler}": ":cc-compiler-%{name}",
+        "%{name}": ":cc-compiler-%{name}",
+        "armeabi-v7a|compiler": ":cc-compiler-armeabi-v7a",
+        "armeabi-v7a": ":cc-compiler-armeabi-v7a",
+    },
+)
+
+cc_toolchain(
+    name = "cc-compiler-%{name}",
+    toolchain_identifier = "%{cc_toolchain_identifier}",
+    toolchain_config = ":%{cc_toolchain_identifier}",
+    all_files = ":compiler_deps",
+    ar_files = ":compiler_deps",
+    as_files = ":compiler_deps",
+    compiler_files = ":compiler_deps",
+    dwp_files = ":empty",
+    linker_files = ":compiler_deps",
+    objcopy_files = ":empty",
+    strip_files = ":empty",
+    supports_header_parsing = 1,
+    supports_param_files = 1,
+    module_map = %{modulemap},
+)
+
+cc_toolchain_config(
+    name = "%{cc_toolchain_identifier}",
+    cpu = "%{target_cpu}",
+    compiler = "%{compiler}",
+    toolchain_identifier = "%{cc_toolchain_identifier}",
+    host_system_name = "%{host_system_name}",
+    target_system_name = "%{target_system_name}",
+    target_libc = "%{target_libc}",
+    abi_version = "%{abi_version}",
+    abi_libc_version = "%{abi_libc_version}",
+    cxx_builtin_include_directories = [%{cxx_builtin_include_directories}],
+    tool_paths = {%{tool_paths}},
+    compile_flags = [%{compile_flags}],
+    opt_compile_flags = [%{opt_compile_flags}],
+    dbg_compile_flags = [%{dbg_compile_flags}],
+    cxx_flags = [%{cxx_flags}],
+    link_flags = [%{link_flags}],
+    link_libs = [%{link_libs}],
+    opt_link_flags = [%{opt_link_flags}],
+    unfiltered_compile_flags = [%{unfiltered_compile_flags}],
+    coverage_compile_flags = [%{coverage_compile_flags}],
+    coverage_link_flags = [%{coverage_link_flags}],
+    supports_start_end_lib = %{supports_start_end_lib},
+)
+
+# Android tooling requires a default toolchain for the armeabi-v7a cpu.
+cc_toolchain(
+    name = "cc-compiler-armeabi-v7a",
+    toolchain_identifier = "stub_armeabi-v7a",
+    toolchain_config = ":stub_armeabi-v7a",
+    all_files = ":empty",
+    ar_files = ":empty",
+    as_files = ":empty",
+    compiler_files = ":empty",
+    dwp_files = ":empty",
+    linker_files = ":empty",
+    objcopy_files = ":empty",
+    strip_files = ":empty",
+    supports_param_files = 1,
+)
+
+armeabi_cc_toolchain_config(name = "stub_armeabi-v7a")

core/private/cc_toolchain/README.md

@@ -0,0 +1,4 @@
+# Vendored files from `@bazel_tools//tools/cpp` that were removed in Bazel 8
+
+This directory contains files that rules_nixpkgs depends on that once lived in `@bazel_tools`.
+Do not add other files here unless needed.

core/private/cc_toolchain/armeabi_cc_toolchain_config.bzl

@@ -0,0 +1,83 @@
+# Copyright 2019 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""A Starlark cc_toolchain configuration rule"""
+
+load(
+    "@rules_cc//cc:cc_toolchain_config_lib.bzl",
+    "feature",
+    "tool_path",
+)
+
+def _impl(ctx):
+    toolchain_identifier = "stub_armeabi-v7a"
+    host_system_name = "armeabi-v7a"
+    target_system_name = "armeabi-v7a"
+    target_cpu = "armeabi-v7a"
+    target_libc = "armeabi-v7a"
+    compiler = "compiler"
+    abi_version = "armeabi-v7a"
+    abi_libc_version = "armeabi-v7a"
+    cc_target_os = None
+    builtin_sysroot = None
+    action_configs = []
+
+    supports_pic_feature = feature(name = "supports_pic", enabled = True)
+    supports_dynamic_linker_feature = feature(name = "supports_dynamic_linker", enabled = True)
+    features = [supports_dynamic_linker_feature, supports_pic_feature]
+
+    cxx_builtin_include_directories = []
+    artifact_name_patterns = []
+    make_variables = []
+
+    tool_paths = [
+        tool_path(name = "ar", path = "/bin/false"),
+        tool_path(name = "compat-ld", path = "/bin/false"),
+        tool_path(name = "cpp", path = "/bin/false"),
+        tool_path(name = "dwp", path = "/bin/false"),
+        tool_path(name = "gcc", path = "/bin/false"),
+        tool_path(name = "gcov", path = "/bin/false"),
+        tool_path(name = "ld", path = "/bin/false"),
+        tool_path(name = "llvm-profdata", path = "/bin/false"),
+        tool_path(name = "nm", path = "/bin/false"),
+        tool_path(name = "objcopy", path = "/bin/false"),
+        tool_path(name = "objdump", path = "/bin/false"),
+        tool_path(name = "strip", path = "/bin/false"),
+    ]
+
+    return cc_common.create_cc_toolchain_config_info(
+        ctx = ctx,
+        features = features,
+        action_configs = action_configs,
+        artifact_name_patterns = artifact_name_patterns,
+        cxx_builtin_include_directories = cxx_builtin_include_directories,
+        toolchain_identifier = toolchain_identifier,
+        host_system_name = host_system_name,
+        target_system_name = target_system_name,
+        target_cpu = target_cpu,
+        target_libc = target_libc,
+        compiler = compiler,
+        abi_version = abi_version,
+        abi_libc_version = abi_libc_version,
+        tool_paths = tool_paths,
+        make_variables = make_variables,
+        builtin_sysroot = builtin_sysroot,
+        cc_target_os = cc_target_os,
+    )
+
+armeabi_cc_toolchain_config = rule(
+    implementation = _impl,
+    attrs = {},
+    provides = [CcToolchainConfigInfo],
+)