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rules_cc
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Fix buildifier warnings in @rules_cc 

Fixes:

* Enabled buildifier on the Bazel CI again
* Added Skydocs where missing
* Moved public files out of .../private/... (e.g. cc_toolchain_config_lib.bzl)
* Reformatted
* Removed unused loads
* Using relative labels for cc_configure related files
* Added development dependency on rules_proto
    * they're not in the federation yet, so hand rolling in rules_cc's WORKSPACE file
* Added development dependency on rules_python (from federation)
* Cleaned up copybara (notable change - not using @rules_cc in labels inside rules_cc repo)
* Made cc_flags_supplier usable internally
* Moved load statements to the top of the bzl file
* Moved runfiles to the tools directory
* Unified toolchain_utils.bzl and find_cc_toolchain.bzl

RELNOTES: None.
PiperOrigin-RevId: 276479521
Change-Id: I3196896061fa2ee61a3efb130c214d288782066a
This commit is contained in:
Googler 2019-10-24 07:01:01 -07:00 committed by Copybara-Service
parent 0e66ef31d6
commit 262ebec3c2
41 changed files with 426 additions and 360 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
.bazelci/presubmit.yml
View File

@ -1,4 +1,7 @@
---
buildifier:
version: latest
warnings: "all"
platforms:
ubuntu1604:
run_targets:

22
WORKSPACE
View File

@ -4,25 +4,29 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
http_archive(
name = "bazel_federation",
url = "https://github.com/bazelbuild/bazel-federation/archive/f0e5eda7f0cbfe67f126ef4dacb18c89039b0506.zip", # 2019-09-30
sha256 = "33222ab7bcc430f1ff1db8788c2e0118b749319dd572476c4fd02322d7d15792",
strip_prefix = "bazel-federation-f0e5eda7f0cbfe67f126ef4dacb18c89039b0506",
type = "zip",
url = "https://github.com/bazelbuild/bazel-federation/archive/f0e5eda7f0cbfe67f126ef4dacb18c89039b0506.zip", # 2019-09-30
)
load("@bazel_federation//:repositories.bzl", "rules_cc_deps")
rules_cc_deps()
load("@bazel_federation//setup:rules_cc.bzl", "rules_cc_setup")
rules_cc_setup()
#
# Dependencies for development of rules_cc itself.
#
load("//:internal_deps.bzl", "rules_cc_internal_deps")
rules_cc_internal_deps()
load("//:internal_setup.bzl", "rules_cc_internal_setup")
rules_cc_internal_setup()
http_archive(
@ -34,3 +38,19 @@ http_archive(
"https://github.com/google/googletest/archive/release-1.10.0.tar.gz",
],
)
http_archive(
name = "rules_proto",
sha256 = "602e7161d9195e50246177e7c55b2f39950a9cf7366f74ed5f22fd45750cd208",
strip_prefix = "rules_proto-97d8af4dc474595af3900dd85cb3a29ad28cc313",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/rules_proto/archive/97d8af4dc474595af3900dd85cb3a29ad28cc313.tar.gz",
"https://github.com/bazelbuild/rules_proto/archive/97d8af4dc474595af3900dd85cb3a29ad28cc313.tar.gz",
],
)
load("@rules_proto//proto:repositories.bzl", "rules_proto_dependencies", "rules_proto_toolchains")
rules_proto_dependencies()
rules_proto_toolchains()

6
cc/BUILD
View File

@ -55,3 +55,9 @@ filegroup(
"//distro:__pkg__",
],
)
cc_toolchain_alias(name = "current_cc_toolchain")
cc_host_toolchain_alias(name = "current_cc_host_toolchain")
cc_libc_top_alias(name = "current_libc_top")

0
cc/private/toolchain/cc_toolchain_config_lib.bzl → cc/cc_toolchain_config_lib.bzl
View File

26
cc/defs.bzl
View File

@ -14,8 +14,8 @@
"""Starlark rules for building C++ projects."""
load("@rules_cc//cc/private/rules_impl:cc_flags_supplier.bzl", _cc_flags_supplier = "cc_flags_supplier")
load("@rules_cc//cc/private/rules_impl:compiler_flag.bzl", _compiler_flag = "compiler_flag")
load("//cc/private/rules_impl:cc_flags_supplier.bzl", _cc_flags_supplier = "cc_flags_supplier")
load("//cc/private/rules_impl:compiler_flag.bzl", _compiler_flag = "compiler_flag")
_MIGRATION_TAG = "__CC_RULES_MIGRATION_DO_NOT_USE_WILL_BREAK__"
@ -34,6 +34,8 @@ def cc_binary(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_binary(**_add_tags(attrs))
def cc_test(**attrs):
@ -44,6 +46,8 @@ def cc_test(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_test(**_add_tags(attrs))
def cc_library(**attrs):
@ -54,6 +58,8 @@ def cc_library(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_library(**_add_tags(attrs))
def cc_import(**attrs):
@ -64,6 +70,8 @@ def cc_import(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_import(**_add_tags(attrs))
def cc_proto_library(**attrs):
@ -74,6 +82,8 @@ def cc_proto_library(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_proto_library(**_add_tags(attrs))
def fdo_prefetch_hints(**attrs):
@ -84,6 +94,8 @@ def fdo_prefetch_hints(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.fdo_prefetch_hints(**_add_tags(attrs))
def fdo_profile(**attrs):
@ -94,6 +106,8 @@ def fdo_profile(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.fdo_profile(**_add_tags(attrs))
def cc_toolchain(**attrs):
@ -104,6 +118,8 @@ def cc_toolchain(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_toolchain(**_add_tags(attrs))
def cc_toolchain_suite(**attrs):
@ -114,6 +130,8 @@ def cc_toolchain_suite(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.cc_toolchain_suite(**_add_tags(attrs))
def objc_library(**attrs):
@ -124,6 +142,8 @@ def objc_library(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.objc_library(**_add_tags(attrs))
def objc_import(**attrs):
@ -134,6 +154,8 @@ def objc_import(**attrs):
Args:
**attrs: Rule attributes
"""
# buildifier: disable=native-cc
native.objc_import(**_add_tags(attrs))
def cc_flags_supplier(**attrs):

41
cc/find_cc_toolchain.bzl
View File

@ -21,12 +21,17 @@ Returns the current `CcToolchainInfo`.
`--cpu`, `--compiler`). For that to work the rule needs to declare an
`_cc_toolchain` attribute, e.g.
foo = rule(
foo = rule(
implementation = _foo_impl,
attrs = {
"_cc_toolchain": attr.label(default = Label("@rules_cc//cc/private/toolchain:current_cc_toolchain")),
"_cc_toolchain": attr.label(
default = Label(
"@rules_cc//cc/:current_cc_toolchain", # copybara-use-repo-external-label
),
),
},
)
)
* When https://github.com/bazelbuild/bazel/issues/7260 **is** flipped, current
C++ toolchain is selected using the toolchain resolution mechanism
(`--platforms`). For that to work the rule needs to declare a dependency on
@ -34,14 +39,15 @@ foo = rule(
foo = rule(
implementation = _foo_impl,
toolchains = ["@rules_cc//cc:toolchain_type"],
toolchains = [
"@rules_cc//cc:toolchain_type", # copybara-use-repo-external-label
],
)
We advise to depend on both `_cc_toolchain` attr and
`@rules_cc//cc:toolchain_type` for the duration of the migration. After
We advise to depend on both `_cc_toolchain` attr and on the toolchain type for
the duration of the migration. After
https://github.com/bazelbuild/bazel/issues/7260 is flipped (and support for old
Bazel version is not needed), it's enough to only keep the
`@rules_cc//cc:toolchain_type`.
Bazel version is not needed), it's enough to only keep the toolchain type.
"""
def find_cc_toolchain(ctx):
@ -57,13 +63,24 @@ Returns the current `CcToolchainInfo`.
# Check the incompatible flag for toolchain resolution.
if hasattr(cc_common, "is_cc_toolchain_resolution_enabled_do_not_use") and cc_common.is_cc_toolchain_resolution_enabled_do_not_use(ctx = ctx):
if "@rules_cc//cc:toolchain_type" in ctx.toolchains:
return ctx.toolchains["@rules_cc//cc:toolchain_type"]
fail("In order to use find_cc_toolchain, you must include the '@rules_cc//cc:toolchain_type' in the toolchains argument to your rule.")
if "//cc:toolchain_type" in ctx.toolchains:
return ctx.toolchains["//cc:toolchain_type"]
fail("In order to use find_cc_toolchain, your rule has to depend on C++ toolchain. See find_cc_toolchain.bzl docs for details.")
# Fall back to the legacy implicit attribute lookup.
if hasattr(ctx.attr, "_cc_toolchain"):
return ctx.attr._cc_toolchain[cc_common.CcToolchainInfo]
# We didn't find anything.
fail("In order to use find_ccc_toolchain, you must define the '_cc_toolchain' attribute on your rule or aspect.")
fail("In order to use find_cc_toolchain, your rule has to depend on C++ toolchain. See find_cc_toolchain.bzl docs for details.")
def find_cpp_toolchain(ctx):
"""Deprecated, use `find_cc_toolchain` instead.
Args:
ctx: See `find_cc_toolchain`.
Returns:
A CcToolchainInfo.
"""
return find_cc_toolchain(ctx)

6
cc/private/rules_impl/cc_flags_supplier.bzl
View File

@ -14,11 +14,11 @@
"""Rule that provides the CC_FLAGS Make variable."""
load("//cc:action_names.bzl", "CC_FLAGS_MAKE_VARIABLE_ACTION_NAME")
load("//cc:find_cc_toolchain.bzl", "find_cc_toolchain")
load("//cc/private/rules_impl:cc_flags_supplier_lib.bzl", "build_cc_flags")
load("//cc:toolchain_utils.bzl", "find_cpp_toolchain")
def _cc_flags_supplier_impl(ctx):
cc_toolchain = find_cpp_toolchain(ctx)
cc_toolchain = find_cc_toolchain(ctx)
cc_flags = build_cc_flags(ctx, cc_toolchain, CC_FLAGS_MAKE_VARIABLE_ACTION_NAME)
variables = platform_common.TemplateVariableInfo({
"CC_FLAGS": cc_flags,
@ -28,7 +28,7 @@ def _cc_flags_supplier_impl(ctx):
cc_flags_supplier = rule(
implementation = _cc_flags_supplier_impl,
attrs = {
"_cc_toolchain": attr.label(default = Label("@rules_cc//cc/private/toolchain:current_cc_toolchain")),
"_cc_toolchain": attr.label(default = Label("@rules_cc//cc:current_cc_toolchain")),
},
toolchains = ["@rules_cc//cc:toolchain_type"],
fragments = ["cpp"],

10
cc/private/rules_impl/cc_flags_supplier_lib.bzl
View File

@ -15,7 +15,15 @@
# This should match the logic in CcCommon.computeCcFlags:
def build_cc_flags(ctx, cc_toolchain, action_name):
"""Determine the value for CC_FLAGS based on the given toolchain."""
"""Determine the value for CC_FLAGS based on the given toolchain.
Args:
ctx: The rule context.
cc_toolchain: CcToolchainInfo instance.
action_name: Name of the action.
Returns:
string containing flags separated by a space.
"""
# Get default cc flags from toolchain's make_variables.
legacy_cc_flags = cc_common.legacy_cc_flags_make_variable_do_not_use(

8
cc/private/rules_impl/compiler_flag.bzl
View File

@ -14,16 +14,16 @@
"""Rule that allows select() to differentiate between compilers."""
load("@rules_cc//cc:toolchain_utils.bzl", "find_cpp_toolchain")
load("//cc:find_cc_toolchain.bzl", "find_cc_toolchain")
def _compiler_flag_impl(ctx):
toolchain = find_cpp_toolchain(ctx)
toolchain = find_cc_toolchain(ctx)
return [config_common.FeatureFlagInfo(value = toolchain.compiler)]
compiler_flag = rule(
implementation = _compiler_flag_impl,
attrs = {
"_cc_toolchain": attr.label(default = Label("@rules_cc//cc/private/toolchain:current_cc_toolchain")),
"_cc_toolchain": attr.label(default = Label("//cc:current_cc_toolchain")),
},
toolchains = ["@rules_cc//cc:toolchain_type"],
toolchains = ["//cc:toolchain_type"],
)

18
cc/private/toolchain/BUILD
View File

@ -51,12 +51,6 @@ constraint_value(
constraint_setting = ":cc_compiler",
)
cc_toolchain_alias(name = "current_cc_toolchain")
cc_host_toolchain_alias(name = "current_cc_host_toolchain")
cc_libc_top_alias(name = "current_libc_top")
cc_library(
name = "malloc",
)
@ -86,17 +80,7 @@ alias(
filegroup(
name = "srcs",
srcs = glob(["**"]) + [
"//cc/private/toolchain/runfiles:srcs",
],
)
filegroup(
name = "embedded_tools",
srcs = glob(["**"]) + [
"//cc:action_names.bzl",
"//cc/private/toolchain/runfiles:embedded_tools",
],
srcs = glob(["**"])
)
filegroup(

8
cc/private/toolchain/BUILD.empty
View File

@ -12,6 +12,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
load("@rules_cc//cc:defs.bzl", "cc_library", "cc_toolchain", "cc_toolchain_suite")
package(default_visibility = ["//visibility:public"])
load(":cc_toolchain_config.bzl", "cc_toolchain_config")
@ -28,15 +30,13 @@ filegroup(
cc_toolchain_suite(
name = "toolchain",
toolchains = {
"local|local": ":local",
"local": ":local",
"local|local": ":local",
},
)
cc_toolchain(
name = "local",
toolchain_identifier = "local",
toolchain_config = ":local_config",
all_files = ":empty",
ar_files = ":empty",
as_files = ":empty",
@ -45,6 +45,8 @@ cc_toolchain(
linker_files = ":empty",
objcopy_files = ":empty",
strip_files = ":empty",
toolchain_config = ":local_config",
toolchain_identifier = "local",
)
cc_toolchain_config(name = "local_config")

14
cc/private/toolchain/BUILD.static.freebsd
View File

@ -16,8 +16,8 @@
package(default_visibility = ["//visibility:public"])
load("@rules_cc//cc:defs.bzl", "cc_library", "cc_toolchain", "cc_toolchain_suite")
load(":cc_toolchain_config.bzl", "cc_toolchain_config")
load("@rules_cc//cc:defs.bzl", "cc_toolchain_suite", "cc_toolchain", "cc_library")
cc_library(
name = "malloc",
@ -32,17 +32,15 @@ filegroup(
cc_toolchain_suite(
name = "toolchain",
toolchains = {
"armeabi-v7a|compiler": ":cc-compiler-armeabi-v7a",
"freebsd|compiler": ":cc-compiler-freebsd",
"armeabi-v7a": ":cc-compiler-armeabi-v7a",
"armeabi-v7a|compiler": ":cc-compiler-armeabi-v7a",
"freebsd": ":cc-compiler-freebsd",
"freebsd|compiler": ":cc-compiler-freebsd",
},
)
cc_toolchain(
name = "cc-compiler-freebsd",
toolchain_identifier = "local_freebsd",
toolchain_config = ":local_freebsd",
all_files = ":empty",
ar_files = ":empty",
as_files = ":empty",
@ -52,6 +50,8 @@ cc_toolchain(
objcopy_files = ":empty",
strip_files = ":empty",
supports_param_files = 0,
toolchain_config = ":local_freebsd",
toolchain_identifier = "local_freebsd",
)
cc_toolchain_config(
@ -75,8 +75,6 @@ toolchain(
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",
@ -86,6 +84,8 @@ cc_toolchain(
objcopy_files = ":empty",
strip_files = ":empty",
supports_param_files = 0,
toolchain_config = ":stub_armeabi-v7a",
toolchain_identifier = "stub_armeabi-v7a",
)
cc_toolchain_config(

1
cc/private/toolchain/BUILD.toolchains.tpl
View File

@ -1,4 +1,5 @@
load("@local_config_platform//:constraints.bzl", "HOST_CONSTRAINTS")
toolchain(
name = "cc-toolchain-%{name}",
exec_compatible_with = HOST_CONSTRAINTS,

2
cc/private/toolchain/armeabi_cc_toolchain_config.bzl
View File

@ -15,7 +15,7 @@
"""A Starlark cc_toolchain configuration rule"""
load(
"@rules_cc//cc/private/toolchain:cc_toolchain_config_lib.bzl",
"@rules_cc//cc:cc_toolchain_config_lib.bzl",
"feature",
"tool_path",
)

10
cc/private/toolchain/cc_configure.bzl
View File

@ -13,15 +13,15 @@
# limitations under the License.
"""Rules for configuring the C++ toolchain (experimental)."""
load("@rules_cc//cc/private/toolchain:windows_cc_configure.bzl", "configure_windows_toolchain")
load("@rules_cc//cc/private/toolchain:osx_cc_configure.bzl", "configure_osx_toolchain")
load("@rules_cc//cc/private/toolchain:unix_cc_configure.bzl", "configure_unix_toolchain")
load("@bazel_tools//tools/osx:xcode_configure.bzl", "run_xcode_locator")
load(
"@rules_cc//cc/private/toolchain:lib_cc_configure.bzl",
":lib_cc_configure.bzl",
"get_cpu_value",
"resolve_labels",
)
load("@bazel_tools//tools/osx:xcode_configure.bzl", "run_xcode_locator")
load(":osx_cc_configure.bzl", "configure_osx_toolchain")
load(":unix_cc_configure.bzl", "configure_unix_toolchain")
load(":windows_cc_configure.bzl", "configure_windows_toolchain")
def _generate_cpp_only_build_file(repository_ctx, cpu_value, paths):
repository_ctx.template(

29
cc/private/toolchain/cc_toolchain_config.bzl
View File

@ -14,16 +14,6 @@
"""A Starlark cc_toolchain configuration rule"""
load(
"@rules_cc//cc/private/toolchain:cc_toolchain_config_lib.bzl",
"action_config",
"feature",
"flag_group",
"flag_set",
"tool",
"tool_path",
"with_feature_set",
)
load(
"@rules_cc//cc:action_names.bzl",
_ASSEMBLE_ACTION_NAME = "ASSEMBLE_ACTION_NAME",
@ -40,6 +30,16 @@ load(
_LTO_BACKEND_ACTION_NAME = "LTO_BACKEND_ACTION_NAME",
_PREPROCESS_ASSEMBLE_ACTION_NAME = "PREPROCESS_ASSEMBLE_ACTION_NAME",
)
load(
"@rules_cc//cc:cc_toolchain_config_lib.bzl",
"action_config",
"feature",
"flag_group",
"flag_set",
"tool",
"tool_path",
"with_feature_set",
)
all_compile_actions = [
_C_COMPILE_ACTION_NAME,
@ -209,6 +209,7 @@ def _impl(ctx):
builtin_sysroot = None
objcopy_embed_data_action = None
if (ctx.attr.cpu == "darwin" or
ctx.attr.cpu == "freebsd" or
ctx.attr.cpu == "local"):
@ -323,6 +324,7 @@ def _impl(ctx):
],
)
default_link_flags_feature = None
if (ctx.attr.cpu == "local"):
default_link_flags_feature = feature(
name = "default_link_flags",
@ -416,6 +418,7 @@ def _impl(ctx):
],
)
unfiltered_compile_flags_feature = None
if (ctx.attr.cpu == "darwin" or
ctx.attr.cpu == "freebsd"):
unfiltered_compile_flags_feature = feature(
@ -509,6 +512,7 @@ def _impl(ctx):
supports_pic_feature = feature(name = "supports_pic", enabled = True)
default_compile_flags_feature = None
if (ctx.attr.cpu == "darwin"):
default_compile_flags_feature = feature(
name = "default_compile_flags",
@ -939,6 +943,7 @@ def _impl(ctx):
dbg_feature = feature(name = "dbg")
user_compile_flags_feature = None
if (ctx.attr.cpu == "darwin" or
ctx.attr.cpu == "freebsd" or
ctx.attr.cpu == "local"):
@ -994,6 +999,7 @@ def _impl(ctx):
],
)
sysroot_feature = None
if (ctx.attr.cpu == "darwin" or
ctx.attr.cpu == "freebsd" or
ctx.attr.cpu == "local"):
@ -1131,6 +1137,7 @@ def _impl(ctx):
fastbuild_feature = feature(name = "fastbuild")
features = None
if (ctx.attr.cpu == "x64_windows" and ctx.attr.compiler == "windows_msys64"):
features = [
default_compile_flags_feature,
@ -1475,8 +1482,8 @@ def _impl(ctx):
cc_toolchain_config = rule(
implementation = _impl,
attrs = {
"cpu": attr.string(mandatory = True),
"compiler": attr.string(),
"cpu": attr.string(mandatory = True),
"disable_static_cc_toolchains": attr.bool(),
},
provides = [CcToolchainConfigInfo],

4
cc/private/toolchain/freebsd_cc_toolchain_config.bzl
View File

@ -14,8 +14,9 @@
"""A Starlark cc_toolchain configuration rule for freebsd."""
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
load(
"@rules_cc//cc/private/toolchain:cc_toolchain_config_lib.bzl",
"@rules_cc//cc:cc_toolchain_config_lib.bzl",
"action_config",
"feature",
"flag_group",
@ -24,7 +25,6 @@ load(
"tool_path",
"with_feature_set",
)
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
all_compile_actions = [
ACTION_NAMES.c_compile,

55
cc/private/toolchain/lib_cc_configure.bzl
View File

@ -115,25 +115,53 @@ def auto_configure_warning(msg):
"""Output warning message during auto configuration."""
yellow = "\033[1;33m"
no_color = "\033[0m"
# buildifier: disable=print
print("\n%sAuto-Configuration Warning:%s %s\n" % (yellow, no_color, msg))
def get_env_var(repository_ctx, name, default = None, enable_warning = True):
"""Find an environment variable in system path. Doesn't %-escape the value!"""
"""Find an environment variable in system path. Doesn't %-escape the value!
Args:
repository_ctx: The repository context.
name: Name of the environment variable.
default: Default value to be used when such environment variable is not present.
enable_warning: Show warning if the variable is not present.
Returns:
value of the environment variable or default.
"""
if name in repository_ctx.os.environ:
return repository_ctx.os.environ[name]
if default != None:
if enable_warning:
auto_configure_warning("'%s' environment variable is not set, using '%s' as default" % (name, default))
return default
auto_configure_fail("'%s' environment variable is not set" % name)
return auto_configure_fail("'%s' environment variable is not set" % name)
def which(repository_ctx, cmd, default = None):
"""A wrapper around repository_ctx.which() to provide a fallback value. Doesn't %-escape the value!"""
"""A wrapper around repository_ctx.which() to provide a fallback value. Doesn't %-escape the value!
Args:
repository_ctx: The repository context.
cmd: name of the executable to resolve.
default: Value to be returned when such executable couldn't be found.
Returns:
absolute path to the cmd or default when not found.
"""
result = repository_ctx.which(cmd)
return default if result == None else str(result)
def which_cmd(repository_ctx, cmd, default = None):
"""Find cmd in PATH using repository_ctx.which() and fail if cannot find it. Doesn't %-escape the cmd!"""
"""Find cmd in PATH using repository_ctx.which() and fail if cannot find it. Doesn't %-escape the cmd!
Args:
repository_ctx: The repository context.
cmd: name of the executable to resolve.
default: Value to be returned when such executable couldn't be found.
Returns:
absolute path to the cmd or default when not found.
"""
result = repository_ctx.which(cmd)
if result != None:
return str(result)
@ -149,7 +177,16 @@ def execute(
command,
environment = None,
expect_failure = False):
"""Execute a command, return stdout if succeed and throw an error if it fails. Doesn't %-escape the result!"""
"""Execute a command, return stdout if succeed and throw an error if it fails. Doesn't %-escape the result!
Args:
repository_ctx: The repository context.
command: command to execute.
environment: dictionary with environment variables to set for the command.
expect_failure: True if the command is expected to fail.
Returns:
stdout of the executed command.
"""
if environment:
result = repository_ctx.execute(command, environment = environment)
else:
@ -178,7 +215,13 @@ def execute(
return stripped_stdout
def get_cpu_value(repository_ctx):
"""Compute the cpu_value based on the OS name. Doesn't %-escape the result!"""
"""Compute the cpu_value based on the OS name. Doesn't %-escape the result!
Args:
repository_ctx: The repository context.
Returns:
One of (darwin, freebsd, x64_windows, ppc, s390x, arm, aarch64, k8, piii)
"""
os_name = repository_ctx.os.name.lower()
if os_name.startswith("mac os"):
return "darwin"

11
cc/private/toolchain/osx_cc_configure.bzl
View File

@ -16,13 +16,13 @@
load("@bazel_tools//tools/osx:xcode_configure.bzl", "run_xcode_locator")
load(
"@rules_cc//cc/private/toolchain:lib_cc_configure.bzl",
":lib_cc_configure.bzl",
"escape_string",
"resolve_labels",
"write_builtin_include_directory_paths",
)
load(
"@rules_cc//cc/private/toolchain:unix_cc_configure.bzl",
":unix_cc_configure.bzl",
"configure_unix_toolchain",
"find_cc",
"get_env",
@ -51,7 +51,12 @@ def _get_escaped_xcode_cxx_inc_directories(repository_ctx, cc, xcode_toolchains)
return include_dirs
def configure_osx_toolchain(repository_ctx, overriden_tools):
"""Configure C++ toolchain on macOS."""
"""Configure C++ toolchain on macOS.
Args:
repository_ctx: The repository context.
overriden_tools: dictionary of overriden tools.
"""
paths = resolve_labels(repository_ctx, [
"@rules_cc//cc/private/toolchain:osx_cc_wrapper.sh.tpl",
"@bazel_tools//tools/objc:libtool.sh",

84
cc/private/toolchain/runfiles/BUILD
View File

@ -1,84 +0,0 @@
package(default_visibility = ["//visibility:private"])
load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test")
filegroup(
name = "srcs",
srcs = glob(
["**"],
exclude = [
".*",
"*~",
],
),
visibility = ["//cc/private/toolchain:__pkg__"],
)
filegroup(
name = "embedded_tools",
srcs = [
"BUILD.tools",
":srcs_for_embedded_tools",
],
visibility = ["//cc/private/toolchain:__pkg__"],
)
# Rewrite the include path for runfiles.h in runfiles_src.cc, and create
# "generated_runfiles.{h,cc}". These files are renamed to "runfiles.{h,cc}" as
# part of creating the embedded tools of Bazel.
#
# We cannot just check in runfiles_src.{h,cc} as runfiles.{h,cc}, because it'd
# cause a header check failure on Windows when building targets in the Bazel
# source tree, if those targets depend on @rules_cc//cc/private/toolchain/runfiles,
# because due to lack of sandboxing they would accidentally pick up runfiles.h
# from @rules_cc//cc/private/toolchain/runfiles.
genrule(
name = "srcs_for_embedded_tools",
srcs = [
"runfiles_src.cc",
"runfiles_src.h",
],
outs = [
"generated_runfiles.cc",
"generated_runfiles.h",
],
# Keep this transformation logic in sync with the
# //scripts/bootstrap/compile.sh
cmd = ("sed " +
" 's|^#include.*/runfiles_src.h.*|#include \"tools/cpp/runfiles/runfiles.h\"|' " +
" $(location runfiles_src.cc) > $(location generated_runfiles.cc) && " +
"cp $(location runfiles_src.h) $(location generated_runfiles.h)"),
)
cc_library(
name = "runfiles",
testonly = 1,
srcs = ["runfiles_src.cc"],
hdrs = ["runfiles_src.h"],
)
cc_test(
name = "runfiles_test",
srcs = ["runfiles_test.cc"],
visibility = ["//visibility:public"],
deps = [
":runfiles",
"@com_google_googletest//:gtest_main",
],
)
test_suite(
name = "windows_tests",
tags = [
"-no_windows",
"-slow",
],
)
test_suite(
name = "all_windows_tests",
tests = [
":windows_tests",
],
visibility = ["//tools:__pkg__"],
)

8
cc/private/toolchain/runfiles/BUILD.tools
View File

@ -1,8 +0,0 @@
# This package will host the C++ runfiles library when it's finally released.
cc_library(
name = "runfiles",
srcs = ["runfiles.cc"],
hdrs = ["runfiles.h"],
visibility = ["//visibility:public"],
)

123
cc/private/toolchain/unix_cc_configure.bzl
View File

@ -15,7 +15,7 @@
"""Configuring the C++ toolchain on Unix platforms."""
load(
"@rules_cc//cc/private/toolchain:lib_cc_configure.bzl",
":lib_cc_configure.bzl",
"auto_configure_fail",
"auto_configure_warning",
"auto_configure_warning_maybe",
@ -123,7 +123,16 @@ def _cxx_inc_convert(path):
return path
def get_escaped_cxx_inc_directories(repository_ctx, cc, lang_flag, additional_flags = []):
"""Compute the list of default %-escaped C++ include directories."""
"""Compute the list of default %-escaped C++ include directories.
Args:
repository_ctx: The repository context.
cc: path to the C compiler.
lang_flag: value for the language flag (c, c++).
additional_flags: additional flags to pass to cc.
Returns:
a list of escaped system include directories.
"""
result = repository_ctx.execute([cc, "-E", lang_flag, "-", "-v"] + additional_flags)
index1 = result.stderr.find(_INC_DIR_MARKER_BEGIN)
if index1 == -1:
@ -243,8 +252,14 @@ def _get_no_canonical_prefixes_opt(repository_ctx, cc):
)
return opt
def get_env(repository_ctx):
"""Convert the environment in a list of export if in Homebrew. Doesn't %-escape the result!"""
def _get_env(repository_ctx):
"""Convert the environment in a list of export if in Homebrew. Doesn't %-escape the result!
Args:
repository_ctx: The repository context.
Returns:
empty string or a list of exports in case we're running with homebrew. Don't ask me why.
"""
env = repository_ctx.os.environ
if "HOMEBREW_RUBY_PATH" in env:
return "\n".join([
@ -304,7 +319,13 @@ def find_cc(repository_ctx, overriden_tools):
return _find_generic(repository_ctx, "gcc", "CC", overriden_tools)
def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"""Configure C++ toolchain on Unix platforms."""
"""Configure C++ toolchain on Unix platforms.
Args:
repository_ctx: The repository context.
cpu_value: current cpu name.
overriden_tools: overriden tools.
"""
paths = resolve_labels(repository_ctx, [
"@rules_cc//cc/private/toolchain:BUILD.tpl",
"@rules_cc//cc/private/toolchain:armeabi_cc_toolchain_config.bzl",
@ -411,16 +432,10 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"BUILD",
paths["@rules_cc//cc/private/toolchain:BUILD.tpl"],
{
"%{cc_toolchain_identifier}": cc_toolchain_identifier,
"%{name}": cpu_value,
"%{supports_param_files}": "0" if darwin else "1",
"%{cc_compiler_deps}": get_starlark_list([":builtin_include_directory_paths"] + (
[":cc_wrapper"] if darwin else []
)),
"%{compiler}": escape_string(get_env_var(
"%{abi_libc_version}": escape_string(get_env_var(
repository_ctx,
"BAZEL_COMPILER",
"compiler",
"ABI_LIBC_VERSION",
"local",
False,
)),
"%{abi_version}": escape_string(get_env_var(
@ -429,40 +444,10 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"local",
False,
)),
"%{abi_libc_version}": escape_string(get_env_var(
repository_ctx,
"ABI_LIBC_VERSION",
"local",
False,
"%{cc_compiler_deps}": get_starlark_list([":builtin_include_directory_paths"] + (
[":cc_wrapper"] if darwin else []
)),
"%{host_system_name}": escape_string(get_env_var(
repository_ctx,
"BAZEL_HOST_SYSTEM",
"local",
False,
)),
"%{target_libc}": "macosx" if darwin else escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_LIBC",
"local",
False,
)),
"%{target_cpu}": escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_CPU",
cpu_value,
False,
)),
"%{target_system_name}": escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_SYSTEM",
"local",
False,
)),
"%{tool_paths}": ",\n ".join(
['"%s": "%s"' % (k, v) for k, v in tool_paths.items()],
),
"%{cxx_builtin_include_directories}": get_starlark_list(builtin_include_directories),
"%{cc_toolchain_identifier}": cc_toolchain_identifier,
"%{compile_flags}": get_starlark_list(
[
# Security hardening requires optimization.
@ -488,7 +473,23 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"-fno-omit-frame-pointer",
],
),
"%{compiler}": escape_string(get_env_var(
repository_ctx,
"BAZEL_COMPILER",
"compiler",
False,
)),
"%{coverage_compile_flags}": coverage_compile_flags,
"%{coverage_link_flags}": coverage_link_flags,
"%{cxx_builtin_include_directories}": get_starlark_list(builtin_include_directories),
"%{cxx_flags}": get_starlark_list(cxx_opts + _escaped_cplus_include_paths(repository_ctx)),
"%{dbg_compile_flags}": get_starlark_list(["-g"]),
"%{host_system_name}": escape_string(get_env_var(
repository_ctx,
"BAZEL_HOST_SYSTEM",
"local",
False,
)),
"%{link_flags}": get_starlark_list((
["-fuse-ld=" + gold_linker_path] if gold_linker_path else []
) + _add_linker_option_if_supported(
@ -518,6 +519,7 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
)
) + link_opts),
"%{link_libs}": get_starlark_list(link_libs),
"%{name}": cpu_value,
"%{opt_compile_flags}": get_starlark_list(
[
# No debug symbols.
@ -552,6 +554,29 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"-gc-sections",
),
),
"%{supports_param_files}": "0" if darwin else "1",
"%{supports_start_end_lib}": "True" if gold_linker_path else "False",
"%{target_cpu}": escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_CPU",
cpu_value,
False,
)),
"%{target_libc}": "macosx" if darwin else escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_LIBC",
"local",
False,
)),
"%{target_system_name}": escape_string(get_env_var(
repository_ctx,
"BAZEL_TARGET_SYSTEM",
"local",
False,
)),
"%{tool_paths}": ",\n ".join(
['"%s": "%s"' % (k, v) for k, v in tool_paths.items()],
),
"%{unfiltered_compile_flags}": get_starlark_list(
_get_no_canonical_prefixes_opt(repository_ctx, cc) + [
# Make C++ compilation deterministic. Use linkstamping instead of these
@ -562,9 +587,5 @@ def configure_unix_toolchain(repository_ctx, cpu_value, overriden_tools):
"-D__TIME__=\\\"redacted\\\"",
],
),
"%{dbg_compile_flags}": get_starlark_list(["-g"]),
"%{coverage_compile_flags}": coverage_compile_flags,
"%{coverage_link_flags}": coverage_link_flags,
"%{supports_start_end_lib}": "True" if gold_linker_path else "False",
},
)

36
cc/private/toolchain/unix_cc_toolchain_config.bzl
View File

@ -14,8 +14,9 @@
"""A Starlark cc_toolchain configuration rule"""
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
load(
"@rules_cc//cc/private/toolchain:cc_toolchain_config_lib.bzl",
"@rules_cc//cc:cc_toolchain_config_lib.bzl",
"feature",
"feature_set",
"flag_group",
@ -24,7 +25,6 @@ load(
"variable_with_value",
"with_feature_set",
)
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
all_compile_actions = [
ACTION_NAMES.c_compile,
@ -1171,27 +1171,27 @@ def _impl(ctx):
cc_toolchain_config = rule(
implementation = _impl,
attrs = {
"cpu": attr.string(mandatory = True),
"compiler": attr.string(mandatory = True),
"toolchain_identifier": attr.string(mandatory = True),
"host_system_name": attr.string(mandatory = True),
"target_system_name": attr.string(mandatory = True),
"target_libc": attr.string(mandatory = True),
"abi_version": attr.string(mandatory = True),
"abi_libc_version": attr.string(mandatory = True),
"cxx_builtin_include_directories": attr.string_list(),
"tool_paths": attr.string_dict(),
"abi_version": attr.string(mandatory = True),
"compile_flags": attr.string_list(),
"dbg_compile_flags": attr.string_list(),
"opt_compile_flags": attr.string_list(),
"cxx_flags": attr.string_list(),
"link_flags": attr.string_list(),
"link_libs": attr.string_list(),
"opt_link_flags": attr.string_list(),
"unfiltered_compile_flags": attr.string_list(),
"compiler": attr.string(mandatory = True),
"coverage_compile_flags": attr.string_list(),
"coverage_link_flags": attr.string_list(),
"cpu": attr.string(mandatory = True),
"cxx_builtin_include_directories": attr.string_list(),
"cxx_flags": attr.string_list(),
"dbg_compile_flags": attr.string_list(),
"host_system_name": attr.string(mandatory = True),
"link_flags": attr.string_list(),
"link_libs": attr.string_list(),
"opt_compile_flags": attr.string_list(),
"opt_link_flags": attr.string_list(),
"supports_start_end_lib": attr.bool(),
"target_libc": attr.string(mandatory = True),
"target_system_name": attr.string(mandatory = True),
"tool_paths": attr.string_dict(),
"toolchain_identifier": attr.string(mandatory = True),
"unfiltered_compile_flags": attr.string_list(),
},
provides = [CcToolchainConfigInfo],
)

118
cc/private/toolchain/windows_cc_configure.bzl
View File

@ -15,7 +15,7 @@
"""Configuring the C++ toolchain on Windows."""
load(
"@rules_cc//cc/private/toolchain:lib_cc_configure.bzl",
":lib_cc_configure.bzl",
"auto_configure_fail",
"auto_configure_warning",
"auto_configure_warning_maybe",
@ -99,7 +99,7 @@ def _add_system_root(repository_ctx, env):
env["PATH"] = env["PATH"] + ";" + _get_system_root(repository_ctx) + "\\system32"
return env
def find_vc_path(repository_ctx):
def _find_vc_path(repository_ctx):
"""Find Visual C++ build tools install path. Doesn't %-escape the result."""
# 1. Check if BAZEL_VC or BAZEL_VS is already set by user.
@ -360,7 +360,7 @@ def _get_winsdk_full_version(repository_ctx):
"""Return the value of BAZEL_WINSDK_FULL_VERSION if defined, otherwise an empty string."""
return repository_ctx.os.environ.get("BAZEL_WINSDK_FULL_VERSION", default = "")
def find_msvc_tool(repository_ctx, vc_path, tool):
def _find_msvc_tool(repository_ctx, vc_path, tool):
"""Find the exact path of a specific build tool in MSVC. Doesn't %-escape the result."""
tool_path = None
if _is_vs_2017_or_2019(vc_path):
@ -384,7 +384,7 @@ def _find_missing_vc_tools(repository_ctx, vc_path):
missing_tools.append("VCVARSALL.BAT")
for tool in ["cl.exe", "link.exe", "lib.exe", "ml64.exe"]:
if not find_msvc_tool(repository_ctx, vc_path, tool):
if not _find_msvc_tool(repository_ctx, vc_path, tool):
missing_tools.append(tool)
return missing_tools
@ -397,7 +397,7 @@ def _is_support_debug_fastlink(repository_ctx, linker):
result = execute(repository_ctx, [linker], expect_failure = True)
return result.find("/DEBUG[:{FASTLINK|FULL|NONE}]") != -1
def find_llvm_path(repository_ctx):
def _find_llvm_path(repository_ctx):
"""Find LLVM install path."""
# 1. Check if BAZEL_LLVM is already set by user.
@ -443,7 +443,7 @@ def find_llvm_path(repository_ctx):
auto_configure_warning_maybe(repository_ctx, "LLVM installation found at %s" % llvm_dir)
return llvm_dir
def find_llvm_tool(repository_ctx, llvm_path, tool):
def _find_llvm_tool(repository_ctx, llvm_path, tool):
"""Find the exact path of a specific build tool in LLVM. Doesn't %-escape the result."""
tool_path = llvm_path + "\\bin\\" + tool
@ -460,7 +460,7 @@ def _find_missing_llvm_tools(repository_ctx, llvm_path):
"""Check if any required tool is missing under given LLVM path."""
missing_tools = []
for tool in ["clang-cl.exe", "lld-link.exe", "llvm-lib.exe"]:
if not find_llvm_tool(repository_ctx, llvm_path, tool):
if not _find_llvm_tool(repository_ctx, llvm_path, tool):
missing_tools.append(tool)
return missing_tools
@ -481,17 +481,17 @@ def _get_msys_mingw_vars(repository_ctx):
msys_mingw_vars = {
"%{cxx_builtin_include_directories}": inc_dir_msys,
"%{mingw_cxx_builtin_include_directories}": inc_dir_mingw,
"%{tool_paths}": tool_paths,
"%{mingw_tool_bin_path}": tool_bin_path_mingw,
"%{mingw_tool_paths}": tool_paths_mingw,
"%{tool_bin_path}": tool_bin_path,
"%{mingw_tool_bin_path}": tool_bin_path_mingw,
"%{tool_paths}": tool_paths,
}
return msys_mingw_vars
def _get_msvc_vars(repository_ctx, paths):
"""Get the variables we need to populate the MSVC toolchains."""
msvc_vars = dict()
vc_path = find_vc_path(repository_ctx)
vc_path = _find_vc_path(repository_ctx)
missing_tools = None
if not vc_path:
repository_ctx.template(
@ -518,17 +518,17 @@ def _get_msvc_vars(repository_ctx, paths):
if not vc_path or missing_tools:
write_builtin_include_directory_paths(repository_ctx, "msvc", [], file_suffix = "_msvc")
msvc_vars = {
"%{msvc_env_tmp}": "msvc_not_found",
"%{msvc_env_path}": "msvc_not_found",
"%{msvc_env_include}": "msvc_not_found",
"%{msvc_env_lib}": "msvc_not_found",
"%{msvc_cl_path}": "vc_installation_error.bat",
"%{msvc_ml_path}": "vc_installation_error.bat",
"%{msvc_link_path}": "vc_installation_error.bat",
"%{msvc_lib_path}": "vc_installation_error.bat",
"%{dbg_mode_debug_flag}": "/DEBUG",
"%{fastbuild_mode_debug_flag}": "/DEBUG",
"%{msvc_cl_path}": "vc_installation_error.bat",
"%{msvc_cxx_builtin_include_directories}": "",
"%{msvc_env_include}": "msvc_not_found",
"%{msvc_env_lib}": "msvc_not_found",
"%{msvc_env_path}": "msvc_not_found",
"%{msvc_env_tmp}": "msvc_not_found",
"%{msvc_lib_path}": "vc_installation_error.bat",
"%{msvc_link_path}": "vc_installation_error.bat",
"%{msvc_ml_path}": "vc_installation_error.bat",
}
return msvc_vars
@ -540,23 +540,23 @@ def _get_msvc_vars(repository_ctx, paths):
llvm_path = ""
if _use_clang_cl(repository_ctx):
llvm_path = find_llvm_path(repository_ctx)
llvm_path = _find_llvm_path(repository_ctx)
if not llvm_path:
auto_configure_fail("\nUSE_CLANG_CL is set to 1, but Bazel cannot find Clang installation on your system.\n" +
"Please install Clang via http://releases.llvm.org/download.html\n")
cl_path = find_llvm_tool(repository_ctx, llvm_path, "clang-cl.exe")
link_path = find_llvm_tool(repository_ctx, llvm_path, "lld-link.exe")
cl_path = _find_llvm_tool(repository_ctx, llvm_path, "clang-cl.exe")
link_path = _find_llvm_tool(repository_ctx, llvm_path, "lld-link.exe")
if not link_path:
link_path = find_msvc_tool(repository_ctx, vc_path, "link.exe")
lib_path = find_llvm_tool(repository_ctx, llvm_path, "llvm-lib.exe")
link_path = _find_msvc_tool(repository_ctx, vc_path, "link.exe")
lib_path = _find_llvm_tool(repository_ctx, llvm_path, "llvm-lib.exe")
if not lib_path:
lib_path = find_msvc_tool(repository_ctx, vc_path, "lib.exe")
lib_path = _find_msvc_tool(repository_ctx, vc_path, "lib.exe")
else:
cl_path = find_msvc_tool(repository_ctx, vc_path, "cl.exe")
link_path = find_msvc_tool(repository_ctx, vc_path, "link.exe")
lib_path = find_msvc_tool(repository_ctx, vc_path, "lib.exe")
cl_path = _find_msvc_tool(repository_ctx, vc_path, "cl.exe")
link_path = _find_msvc_tool(repository_ctx, vc_path, "link.exe")
lib_path = _find_msvc_tool(repository_ctx, vc_path, "lib.exe")
msvc_ml_path = find_msvc_tool(repository_ctx, vc_path, "ml64.exe")
msvc_ml_path = _find_msvc_tool(repository_ctx, vc_path, "ml64.exe")
escaped_cxx_include_directories = []
for path in escaped_include_paths.split(";"):
@ -574,23 +574,23 @@ def _get_msvc_vars(repository_ctx, paths):
write_builtin_include_directory_paths(repository_ctx, "msvc", escaped_cxx_include_directories, file_suffix = "_msvc")
msvc_vars = {
"%{msvc_env_tmp}": escaped_tmp_dir,
"%{msvc_env_path}": escaped_paths,
"%{msvc_env_include}": escaped_include_paths,
"%{msvc_env_lib}": escaped_lib_paths,
"%{msvc_cl_path}": cl_path,
"%{msvc_ml_path}": msvc_ml_path,
"%{msvc_link_path}": link_path,
"%{msvc_lib_path}": lib_path,
"%{dbg_mode_debug_flag}": "/DEBUG:FULL" if support_debug_fastlink else "/DEBUG",
"%{fastbuild_mode_debug_flag}": "/DEBUG:FASTLINK" if support_debug_fastlink else "/DEBUG",
"%{msvc_cl_path}": cl_path,
"%{msvc_cxx_builtin_include_directories}": " " + ",\n ".join(escaped_cxx_include_directories),
"%{msvc_env_include}": escaped_include_paths,
"%{msvc_env_lib}": escaped_lib_paths,
"%{msvc_env_path}": escaped_paths,
"%{msvc_env_tmp}": escaped_tmp_dir,
"%{msvc_lib_path}": lib_path,
"%{msvc_link_path}": link_path,
"%{msvc_ml_path}": msvc_ml_path,
}
return msvc_vars
def _get_clang_cl_vars(repository_ctx, paths, msvc_vars):
"""Get the variables we need to populate the clang-cl toolchains."""
llvm_path = find_llvm_path(repository_ctx)
llvm_path = _find_llvm_path(repository_ctx)
error_script = None
if msvc_vars["%{msvc_cl_path}"] == "vc_installation_error.bat":
error_script = "vc_installation_error.bat"
@ -621,23 +621,23 @@ def _get_clang_cl_vars(repository_ctx, paths, msvc_vars):
if error_script:
write_builtin_include_directory_paths(repository_ctx, "clang-cl", [], file_suffix = "_clangcl")
clang_cl_vars = {
"%{clang_cl_env_tmp}": "clang_cl_not_found",
"%{clang_cl_env_path}": "clang_cl_not_found",
"%{clang_cl_cl_path}": error_script,
"%{clang_cl_cxx_builtin_include_directories}": "",
"%{clang_cl_dbg_mode_debug_flag}": "/DEBUG",
"%{clang_cl_env_include}": "clang_cl_not_found",
"%{clang_cl_env_lib}": "clang_cl_not_found",
"%{clang_cl_cl_path}": error_script,
"%{clang_cl_link_path}": error_script,
"%{clang_cl_lib_path}": error_script,
"%{clang_cl_ml_path}": error_script,
"%{clang_cl_dbg_mode_debug_flag}": "/DEBUG",
"%{clang_cl_env_path}": "clang_cl_not_found",
"%{clang_cl_env_tmp}": "clang_cl_not_found",
"%{clang_cl_fastbuild_mode_debug_flag}": "/DEBUG",
"%{clang_cl_cxx_builtin_include_directories}": "",
"%{clang_cl_lib_path}": error_script,
"%{clang_cl_link_path}": error_script,
"%{clang_cl_ml_path}": error_script,
}
return clang_cl_vars
clang_cl_path = find_llvm_tool(repository_ctx, llvm_path, "clang-cl.exe")
lld_link_path = find_llvm_tool(repository_ctx, llvm_path, "lld-link.exe")
llvm_lib_path = find_llvm_tool(repository_ctx, llvm_path, "llvm-lib.exe")
clang_cl_path = _find_llvm_tool(repository_ctx, llvm_path, "clang-cl.exe")
lld_link_path = _find_llvm_tool(repository_ctx, llvm_path, "lld-link.exe")
llvm_lib_path = _find_llvm_tool(repository_ctx, llvm_path, "llvm-lib.exe")
clang_version = _get_clang_version(repository_ctx, clang_cl_path)
clang_dir = llvm_path + "\\lib\\clang\\" + clang_version
@ -647,23 +647,27 @@ def _get_clang_cl_vars(repository_ctx, paths, msvc_vars):
clang_cl_include_directories = msvc_vars["%{msvc_cxx_builtin_include_directories}"] + (",\n \"%s\"" % clang_include_path)
write_builtin_include_directory_paths(repository_ctx, "clang-cl", [clang_cl_include_directories], file_suffix = "_clangcl")
clang_cl_vars = {
"%{clang_cl_env_tmp}": msvc_vars["%{msvc_env_tmp}"],
"%{clang_cl_env_path}": msvc_vars["%{msvc_env_path}"],
"%{clang_cl_env_include}": msvc_vars["%{msvc_env_include}"] + ";" + clang_include_path,
"%{clang_cl_env_lib}": msvc_vars["%{msvc_env_lib}"] + ";" + clang_lib_path,
"%{clang_cl_cxx_builtin_include_directories}": clang_cl_include_directories,
"%{clang_cl_cl_path}": clang_cl_path,
"%{clang_cl_link_path}": lld_link_path,
"%{clang_cl_lib_path}": llvm_lib_path,
"%{clang_cl_ml_path}": msvc_vars["%{msvc_ml_path}"],
"%{clang_cl_cxx_builtin_include_directories}": clang_cl_include_directories,
# LLVM's lld-link.exe doesn't support /DEBUG:FASTLINK.
"%{clang_cl_dbg_mode_debug_flag}": "/DEBUG",
"%{clang_cl_env_include}": msvc_vars["%{msvc_env_include}"] + ";" + clang_include_path,
"%{clang_cl_env_lib}": msvc_vars["%{msvc_env_lib}"] + ";" + clang_lib_path,
"%{clang_cl_env_path}": msvc_vars["%{msvc_env_path}"],
"%{clang_cl_env_tmp}": msvc_vars["%{msvc_env_tmp}"],
"%{clang_cl_fastbuild_mode_debug_flag}": "/DEBUG",
"%{clang_cl_lib_path}": llvm_lib_path,
"%{clang_cl_link_path}": lld_link_path,
"%{clang_cl_ml_path}": msvc_vars["%{msvc_ml_path}"],
}
return clang_cl_vars
def configure_windows_toolchain(repository_ctx):
"""Configure C++ toolchain on Windows."""
"""Configure C++ toolchain on Windows.
Args:
repository_ctx: The repository context.
"""
paths = resolve_labels(repository_ctx, [
"@rules_cc//cc/private/toolchain:BUILD.windows.tpl",
"@rules_cc//cc/private/toolchain:windows_cc_toolchain_config.bzl",

34
cc/private/toolchain/windows_cc_toolchain_config.bzl
View File

@ -14,8 +14,9 @@
"""A Starlark cc_toolchain configuration rule for Windows"""
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
load(
"@rules_cc//cc/private/toolchain:cc_toolchain_config_lib.bzl",
"@rules_cc//cc:cc_toolchain_config_lib.bzl",
"action_config",
"artifact_name_pattern",
"env_entry",
@ -29,7 +30,6 @@ load(
"variable_with_value",
"with_feature_set",
)
load("@rules_cc//cc:action_names.bzl", "ACTION_NAMES")
all_compile_actions = [
ACTION_NAMES.c_compile,
@ -1315,28 +1315,28 @@ def _impl(ctx):
cc_toolchain_config = rule(
implementation = _impl,
attrs = {
"cpu": attr.string(mandatory = True),
"compiler": attr.string(),
"toolchain_identifier": attr.string(),
"host_system_name": attr.string(),
"target_system_name": attr.string(),
"target_libc": attr.string(),
"abi_version": attr.string(),
"abi_libc_version": attr.string(),
"tool_paths": attr.string_dict(),
"abi_version": attr.string(),
"compiler": attr.string(),
"cpu": attr.string(mandatory = True),
"cxx_builtin_include_directories": attr.string_list(),
"dbg_mode_debug_flag": attr.string(),
"default_link_flags": attr.string_list(default = []),
"msvc_env_tmp": attr.string(default = "msvc_not_found"),
"msvc_env_path": attr.string(default = "msvc_not_found"),
"fastbuild_mode_debug_flag": attr.string(),
"host_system_name": attr.string(),
"msvc_cl_path": attr.string(default = "vc_installation_error.bat"),
"msvc_env_include": attr.string(default = "msvc_not_found"),
"msvc_env_lib": attr.string(default = "msvc_not_found"),
"msvc_cl_path": attr.string(default = "vc_installation_error.bat"),
"msvc_ml_path": attr.string(default = "vc_installation_error.bat"),
"msvc_link_path": attr.string(default = "vc_installation_error.bat"),
"msvc_env_path": attr.string(default = "msvc_not_found"),
"msvc_env_tmp": attr.string(default = "msvc_not_found"),
"msvc_lib_path": attr.string(default = "vc_installation_error.bat"),
"dbg_mode_debug_flag": attr.string(),
"fastbuild_mode_debug_flag": attr.string(),
"msvc_link_path": attr.string(default = "vc_installation_error.bat"),
"msvc_ml_path": attr.string(default = "vc_installation_error.bat"),
"target_libc": attr.string(),
"target_system_name": attr.string(),
"tool_bin_path": attr.string(default = "not_found"),
"tool_paths": attr.string_dict(),
"toolchain_identifier": attr.string(),
},
provides = [CcToolchainConfigInfo],
)

31
cc/toolchain_utils.bzl
View File

@ -14,35 +14,18 @@
# limitations under the License.
"""
Finds the c++ toolchain.
Returns the toolchain if enabled, and falls back to a toolchain constructed from
the CppConfiguration.
Deprecated, use find_cc_toolchain.bzl
"""
def find_cpp_toolchain(ctx):
"""
Finds the c++ toolchain.
load(":find_cc_toolchain.bzl", "find_cc_toolchain")
If the c++ toolchain is in use, returns it. Otherwise, returns a c++
toolchain derived from legacy toolchain selection.
def find_cpp_toolchain(ctx):
"""Deprecated, use `find_cc_toolchain` instead.
Args:
ctx: The rule context for which to find a toolchain.
ctx: See `find_cc_toolchain`.
Returns:
A CcToolchainProvider.
A CcToolchainInfo.
"""
# Check the incompatible flag for toolchain resolution.
if hasattr(cc_common, "is_cc_toolchain_resolution_enabled_do_not_use") and cc_common.is_cc_toolchain_resolution_enabled_do_not_use(ctx = ctx):
if "@rules_cc//cc:toolchain_type" in ctx.toolchains:
return ctx.toolchains["@rules_cc//cc:toolchain_type"]
fail("In order to use find_cpp_toolchain, you must include the '@rules_cc//cc:toolchain_type' in the toolchains argument to your rule.")
# Fall back to the legacy implicit attribute lookup.
if hasattr(ctx.attr, "_cc_toolchain"):
return ctx.attr._cc_toolchain[cc_common.CcToolchainInfo]
# We didn't find anything.
fail("In order to use find_cpp_toolchain, you must define the '_cc_toolchain' attribute on your rule or aspect.")
return find_cc_toolchain(ctx)

8
distro/BUILD
View File

@ -1,11 +1,11 @@
load("@rules_pkg//:pkg.bzl", "pkg_tar")
load("@rules_pkg//releasing:defs.bzl", "print_rel_notes")
load("//cc:version.bzl", "version")
package(
default_visibility = ["//visibility:private"],
)
load("@rules_cc//cc:version.bzl", "version")
load("@rules_pkg//:pkg.bzl", "pkg_tar")
load("@rules_pkg//releasing:defs.bzl", "print_rel_notes")
# Build the artifact to put on the github release page.
pkg_tar(
name = "rules_cc-%s" % version,

7
examples/my_c_archive/BUILD
View File

@ -13,11 +13,12 @@
# limitations under the License.
# Example showing how to create a custom Starlark rule that rules_cc can depend on
licenses(["notice"])
load("//examples/my_c_compile:my_c_compile.bzl", "my_c_compile")
load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
load("//examples/my_c_archive:my_c_archive.bzl", "my_c_archive")
load("@rules_cc//cc:defs.bzl", "cc_binary")
load("//examples/my_c_compile:my_c_compile.bzl", "my_c_compile")
licenses(["notice"])
cc_binary(
name = "main",

2
examples/my_c_archive/my_c_archive.bzl
View File

@ -14,8 +14,8 @@
"""Example showing how to create a rule that rules_cc can depend on."""
load("@rules_cc//cc:action_names.bzl", "CPP_LINK_STATIC_LIBRARY_ACTION_NAME")
load("@rules_cc//cc:toolchain_utils.bzl", "find_cpp_toolchain")
load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "CPP_LINK_STATIC_LIBRARY_ACTION_NAME")
load("//examples/my_c_compile:my_c_compile.bzl", "MyCCompileInfo")
def _my_c_archive_impl(ctx):

2
examples/my_c_compile/my_c_compile.bzl
View File

@ -14,8 +14,8 @@
"""Example showing how to create a rule that just compiles C sources."""
load("@rules_cc//cc:action_names.bzl", "C_COMPILE_ACTION_NAME")
load("@rules_cc//cc:toolchain_utils.bzl", "find_cpp_toolchain")
load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "C_COMPILE_ACTION_NAME")
MyCCompileInfo = provider(doc = "", fields = ["object"])

5
internal_deps.bzl
View File

@ -14,15 +14,16 @@
"""Dependencies that are needed for rules_cc tests and tools."""
load("@bazel_federation//:repositories.bzl", "bazel_skylib", "protobuf", "rules_go", "rules_pkg")
load("@bazel_federation//:repositories.bzl", "bazel_skylib", "protobuf", "rules_go", "rules_pkg", "rules_python")
load("@bazel_federation//:third_party_repositories.bzl", "abseil_py", "py_mock", "six", "zlib")
def rules_cc_internal_deps():
"""Fetches all required dependencies for rules_cc tests and tools."""
"""Fetches all dependencies for rules_cc tests and tools."""
bazel_skylib()
protobuf()
rules_go()
rules_pkg()
rules_python()
abseil_py()
py_mock()

6
internal_setup.bzl
View File

@ -14,15 +14,19 @@
"""Setup for rules_cc tests and tools."""
load("@bazel_federation//setup:rules_pkg.bzl", "rules_pkg_setup")
load("@bazel_federation//setup:rules_python.bzl", "rules_python_setup")
# TODO(fweikert): Add setup.bzl file for skylib to the federation and load it instead of workspace.bzl
load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
# TODO(fweikert): Also load rules_go's setup.bzl file from the federation once it exists
load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
load("@bazel_federation//setup:rules_pkg.bzl", "rules_pkg_setup")
def rules_cc_internal_setup():
"""Setup of dependencies of tests and development-only tools used in rules_cc repository."""
bazel_skylib_workspace()
go_rules_dependencies()
go_register_toolchains()
rules_pkg_setup()
rules_python_setup()

4
renovate.json
View File

@ -1,5 +1,5 @@
{
"extends": [
"config:base"
]
"config:base",
],
}

1
third_party/com/github/bazelbuild/bazel/src/main/protobuf/BUILD vendored
View File

@ -2,6 +2,7 @@ licenses(["notice"]) # Apache 2.0
load("@com_google_protobuf//:protobuf.bzl", "py_proto_library")
load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
load("@rules_proto//proto:defs.bzl", "proto_library")
py_proto_library(
name = "crosstool_config_py_pb2",

2
third_party/six.BUILD vendored
View File

@ -2,6 +2,8 @@
# Six provides simple utilities for wrapping over differences between Python 2
# and Python 3.
load("@rules_python//python:defs.bzl", "py_library")
licenses(["notice"]) # MIT
exports_files(["LICENSE"])

7
tools/migration/BUILD
View File

@ -12,11 +12,14 @@
# See the License for the specific language governing permissions and
# limitations under the License.
package(default_visibility = ["//visibility:public"])
# Go rules
load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library", "go_test")
# Python rules
load("@rules_python//python:defs.bzl", "py_binary", "py_library", "py_test")
package(default_visibility = ["//visibility:public"])
licenses(["notice"]) # Apache 2.0
py_binary(

20
tools/runfiles/BUILD Normal file
View File

@ -0,0 +1,20 @@
load("//cc:defs.bzl", "cc_library", "cc_test")
licenses(["notice"])
cc_library(
name = "runfiles",
testonly = 1,
srcs = ["runfiles_src.cc"],
hdrs = ["runfiles_src.h"],
visibility = ["//visibility:public"],
)
cc_test(
name = "runfiles_test",
srcs = ["runfiles_test.cc"],
deps = [
":runfiles",
"@com_google_googletest//:gtest_main",
],
)

2
cc/private/toolchain/runfiles/runfiles_src.cc → tools/runfiles/runfiles_src.cc
View File

@ -14,7 +14,7 @@
// The "srcs_for_embedded_tools" rule in the same package sets the line below to
// include runfiles.h from the correct path. Do not modify the line below.
#include "cc/private/toolchain/runfiles/runfiles_src.h"
#include "tools/runfiles/runfiles_src.h"
#ifdef _WIN32
#include <windows.h>

0
cc/private/toolchain/runfiles/runfiles_src.h → tools/runfiles/runfiles_src.h
View File

2
cc/private/toolchain/runfiles/runfiles_test.cc → tools/runfiles/runfiles_test.cc
View File

@ -12,7 +12,7 @@
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cc/private/toolchain/runfiles/runfiles_src.h"
#include "tools/runfiles/runfiles_src.h"
#ifdef _WIN32
#include <windows.h>
#endif // _WIN32