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mongodb/bazel/toolchains/mongo_cc_toolchain_config.bzl
Zack Winter f9331f75b3 SERVER-96992 Fix remaining compiler warnings (#29083)
GitOrigin-RevId: 2d81298963ffe1eec92936758f1e005e318cb9cf
2024-11-14 14:58:33 +00:00

799 lines
26 KiB
Python

"""This module provides the cc_toolchain_config rule."""
load(
"@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl",
"action_config",
"feature",
"flag_group",
"flag_set",
"tool",
"tool_path",
"with_feature_set",
)
load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "ACTION_NAMES")
all_compile_actions = [
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.clif_match,
ACTION_NAMES.lto_backend,
]
all_non_assembly_compile_actions = [
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.clif_match,
ACTION_NAMES.lto_backend,
]
all_cpp_compile_actions = [
ACTION_NAMES.cpp_compile,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.clif_match,
]
all_c_compile_actions = [
ACTION_NAMES.c_compile,
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
]
preprocessor_compile_actions = [
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.clif_match,
]
all_link_actions = [
ACTION_NAMES.cpp_link_executable,
ACTION_NAMES.cpp_link_dynamic_library,
ACTION_NAMES.cpp_link_nodeps_dynamic_library,
]
lto_index_actions = [
ACTION_NAMES.lto_index_for_executable,
ACTION_NAMES.lto_index_for_dynamic_library,
ACTION_NAMES.lto_index_for_nodeps_dynamic_library,
]
def _impl(ctx):
action_configs = [
action_config(action_name = "objcopy_embed_data", tools = [tool(path = ctx.attr.tool_paths["objcopy"])]),
] + [
action_config(action_name = ACTION_NAMES.llvm_cov, tools = [tool(path = ctx.attr.tool_paths["llvm-cov"])]),
] + [
action_config(action_name = name, enabled = True, tools = [tool(path = ctx.attr.tool_paths["gcc"])])
for name in all_c_compile_actions
] + [
action_config(action_name = name, enabled = True, tools = [tool(path = ctx.attr.tool_paths["g++"])])
for name in all_cpp_compile_actions
] + [
action_config(action_name = name, enabled = True, tools = [tool(path = ctx.attr.tool_paths["g++"])])
for name in all_link_actions
]
opt_feature = feature(name = "opt")
dbg_feature = feature(name = "dbg")
unfiltered_compile_flags_feature = feature(
name = "unfiltered_compile_flags",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [
flag_group(
flags = [
# Do not resolve our symlinked resource prefixes to real paths. This is required to
# make includes resolve correctly.
"-no-canonical-prefixes",
# Replace compile timestamp-related macros for reproducible binaries with consistent hashes.
"-Wno-builtin-macro-redefined",
],
),
],
),
],
)
omitted_timestamps_feature = feature(
name = "redacted_dates",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [
flag_group(
flags = [
"-D__DATE__=\"OMITTED_FOR_HASH_CONSISTENCY\"",
"-D__TIMESTAMP__=\"OMITTED_FOR_HASH_CONSISTENCY\"",
"-D__TIME__=\"OMITTED_FOR_HASH_CONSISTENCY\"",
],
),
],
),
],
)
thin_archive_feature = feature(
name = "thin_archive",
enabled = False,
flag_sets = [
flag_set(
actions = [ACTION_NAMES.cpp_link_static_library],
flag_groups = [
flag_group(
flags = [
"-T",
],
),
],
),
],
)
default_compile_flags_feature = feature(
name = "default_compile_flags",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [
flag_group(
# Security hardening requires optimization.
# We need to undef it as some distributions now have it enabled by default.
flags = ["-U_FORTIFY_SOURCE"],
),
],
with_features = [
with_feature_set(
not_features = ["thin_lto"],
),
],
),
flag_set(
actions = all_c_compile_actions,
flag_groups = [
flag_group(
flags = [
"-std=c11",
],
),
],
),
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [
flag_group(
flags = [
"-std=c++20",
"-nostdinc++",
],
),
],
),
],
)
include_paths_feature = feature(
name = "include_paths",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.clif_match,
ACTION_NAMES.objc_compile,
ACTION_NAMES.objcpp_compile,
],
flag_groups = [
flag_group(
flags = ["-iquote", "%{quote_include_paths}"],
iterate_over = "quote_include_paths",
),
flag_group(
flags = ["-I%{include_paths}"],
iterate_over = "include_paths",
),
flag_group(
flags = ["-isystem", "%{system_include_paths}"],
iterate_over = "system_include_paths",
),
],
),
],
)
library_search_directories_feature = feature(
name = "library_search_directories",
flag_sets = [
flag_set(
actions = all_link_actions + lto_index_actions,
flag_groups = [
flag_group(
flags = ["-L%{library_search_directories}"],
iterate_over = "library_search_directories",
expand_if_available = "library_search_directories",
),
],
),
],
)
supports_dynamic_linker_feature = feature(
name = "supports_dynamic_linker",
enabled = True,
)
objcopy_embed_flags_feature = feature(
name = "objcopy_embed_flags",
enabled = True,
flag_sets = [
flag_set(
actions = ["objcopy_embed_data"],
flag_groups = [flag_group(flags = ["-I", "binary"])],
),
],
)
user_compile_flags_feature = feature(
name = "user_compile_flags",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [
flag_group(
flags = ["%{user_compile_flags}"],
iterate_over = "user_compile_flags",
expand_if_available = "user_compile_flags",
),
],
),
],
)
extra_cflags_feature = feature(
name = "extra_cflags",
enabled = True,
flag_sets = [
flag_set(
actions = [ACTION_NAMES.c_compile],
flag_groups = [flag_group(flags = ctx.attr.extra_cflags)],
),
] if len(ctx.attr.extra_cflags) > 0 else [],
)
extra_cxxflags_feature = feature(
name = "extra_cxxflags",
enabled = True,
flag_sets = [
flag_set(
actions = [ACTION_NAMES.cpp_compile],
flag_groups = [flag_group(flags = ctx.attr.extra_cxxflags)],
),
] if len(ctx.attr.extra_cxxflags) > 0 else [],
)
includes_feature = feature(
name = "includes",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [flag_group(flags = [
"-isystem{}".format(include)
for include in ctx.attr.includes
])],
),
] if ctx.attr.includes != None and len(ctx.attr.includes) > 0 else [],
)
bin_dirs_feature = feature(
name = "bin_dirs",
enabled = True,
flag_sets = [
flag_set(
actions = all_compile_actions + all_link_actions,
flag_groups = [flag_group(flags = [
"-B{}".format(bin_dir)
for bin_dir in ctx.attr.bin_dirs
])],
),
] if ctx.attr.bin_dirs != None and len(ctx.attr.bin_dirs) > 0 else [],
)
extra_ldflags_feature = feature(
name = "extra_ldflags",
enabled = True,
flag_sets = [
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ctx.attr.extra_ldflags)],
),
] if len(ctx.attr.extra_ldflags) > 0 else [],
)
verbose_feature = feature(
name = "verbose",
enabled = False,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [flag_group(flags = ["--verbose"])],
),
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ["-Wl,--verbose"])],
),
] if ctx.attr.verbose else [],
)
sysroot_feature = feature(
name = "sysroot",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.lto_backend,
ACTION_NAMES.clif_match,
] + all_link_actions + lto_index_actions,
flag_groups = [
flag_group(
flags = ["--sysroot", "%{sysroot}"],
expand_if_available = "sysroot",
),
],
),
],
)
dependency_file_feature = feature(
name = "dependency_file",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.objc_compile,
ACTION_NAMES.objcpp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.clif_match,
],
flag_groups = [
flag_group(
flags = ["-MD", "-MF", "%{dependency_file}"],
expand_if_available = "dependency_file",
),
],
),
],
)
supports_pic_feature = feature(
name = "supports_pic",
enabled = True,
)
pic_feature = feature(
name = "pic",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.cpp_module_compile,
],
flag_groups = [
flag_group(flags = ["-fPIC"], expand_if_available = "pic"),
],
),
],
)
pie_feature = feature(
name = "pie",
enabled = False,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_module_codegen,
ACTION_NAMES.cpp_module_compile,
],
flag_groups = [flag_group(flags = ["-fPIE"])],
),
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ["-pie"])],
),
],
)
per_object_debug_info_feature = feature(
name = "per_object_debug_info",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.assemble,
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_module_codegen,
],
flag_groups = [
flag_group(
flags = ["-gsplit-dwarf", "-g"],
expand_if_available = "per_object_debug_info_file",
),
],
with_features = [
with_feature_set(
not_features = ["disable_debug_symbols"],
),
],
),
],
)
preprocessor_defines_feature = feature(
name = "preprocessor_defines",
enabled = True,
flag_sets = [
flag_set(
actions = [
ACTION_NAMES.preprocess_assemble,
ACTION_NAMES.linkstamp_compile,
ACTION_NAMES.c_compile,
ACTION_NAMES.cpp_compile,
ACTION_NAMES.cpp_header_parsing,
ACTION_NAMES.cpp_module_compile,
ACTION_NAMES.clif_match,
],
flag_groups = [
flag_group(
flags = ["-D%{preprocessor_defines}"],
iterate_over = "preprocessor_defines",
),
],
),
],
)
enable_debug_info_feature = feature(
name = "enable_debug_info",
enabled = True,
flag_sets = [
flag_set(
# This needs to only be set in the cpp compile actions to avoid generating debug info when
# building assembly files since the assembler doesn't support gdwarf64.
actions = all_non_assembly_compile_actions,
flag_groups = [
flag_group(
flags = [
"-g2",
],
),
],
with_features = [
with_feature_set(
not_features = ["disable_debug_symbols"],
),
],
),
],
)
dwarf4_feature = feature(
name = "dwarf-4",
enabled = False,
flag_sets = [
flag_set(
# This needs to only be set in the cpp compile actions to avoid generating debug info when
# building assembly files since the assembler doesn't support gdwarf64.
actions = all_non_assembly_compile_actions,
flag_groups = [flag_group(flags = ["-gdwarf-4"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
],
)
dwarf5_feature = feature(
name = "dwarf-5",
enabled = False,
flag_sets = [
flag_set(
# This needs to only be set in the cpp compile actions to avoid generating debug info when
# building assembly files since the assembler doesn't support gdwarf64.
actions = all_non_assembly_compile_actions,
flag_groups = [flag_group(flags = ["-gdwarf-5"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
],
)
dwarf32_feature = feature(
name = "dwarf32",
enabled = False,
flag_sets = [
flag_set(
# This needs to only be set in the cpp compile actions to avoid generating debug info when
# building assembly files since the assembler doesn't support gdwarf64.
actions = all_non_assembly_compile_actions,
flag_groups = [flag_group(flags = ["-gdwarf32"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ["-gdwarf32"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
],
)
dwarf64_feature = feature(
name = "dwarf64",
enabled = False,
flag_sets = [
flag_set(
actions = all_non_assembly_compile_actions,
flag_groups = [flag_group(flags = ["-gdwarf64"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ["-gdwarf64"])],
with_features = [with_feature_set(not_features = ["disable_debug_symbols"])],
),
],
)
disable_debug_symbols_feature = feature(
name = "disable_debug_symbols",
enabled = False,
flag_sets = [
flag_set(
actions = all_compile_actions,
flag_groups = [flag_group(flags = ["-g0"])],
),
flag_set(
actions = all_link_actions,
flag_groups = [flag_group(flags = ["-g0"])],
),
],
)
no_warn_non_virtual_detour_feature = feature(
name = "no_warn_non_virtual_detour",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-non-virtual-dtor"])],
),
],
)
no_deprecated_enum_enum_conversion_feature = feature(
name = "no_deprecated_enum_enum_conversion",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-deprecated-enum-enum-conversion"])],
),
],
)
no_volatile_feature = feature(
name = "no_volatile",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-volatile"])],
),
],
)
fsized_deallocation_feature = feature(
name = "fsized_deallocation",
enabled = True,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-fsized-deallocation"])],
),
],
)
# Warn when hiding a virtual function.
overloaded_virtual_warning_feature = feature(
name = "overloaded_virtual_warning",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Woverloaded-virtual"])],
),
],
)
# Warn when hiding a virtual function.
no_overloaded_virtual_warning_feature = feature(
name = "no_overloaded_virtual_warning",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-overloaded-virtual"])],
),
],
)
# Warn about moves of prvalues, which can inhibit copy elision.
pessimizing_move_warning_feature = feature(
name = "pessimizing_move_warning",
enabled = True,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wpessimizing-move"])],
),
],
)
# -Wno-invalid-offsetof is only valid for C++ but not for C
no_invalid_offsetof_warning_feature = feature(
name = "no_invalid_offsetof_warning",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-invalid-offsetof"])],
),
],
)
# -Wno-class-memaccess is only valid for C++ but not for C
no_class_memaccess_warning_feature = feature(
name = "no_class_memaccess_warning",
enabled = False,
flag_sets = [
flag_set(
actions = all_cpp_compile_actions,
flag_groups = [flag_group(flags = ["-Wno-class-memaccess"])],
),
],
)
features = [
bin_dirs_feature,
default_compile_flags_feature,
include_paths_feature,
library_search_directories_feature,
supports_dynamic_linker_feature,
supports_pic_feature,
pic_feature,
pie_feature,
per_object_debug_info_feature,
preprocessor_defines_feature,
objcopy_embed_flags_feature,
opt_feature,
dbg_feature,
user_compile_flags_feature,
sysroot_feature,
unfiltered_compile_flags_feature,
omitted_timestamps_feature,
thin_archive_feature,
extra_cflags_feature,
extra_cxxflags_feature,
extra_ldflags_feature,
includes_feature,
dependency_file_feature,
verbose_feature,
enable_debug_info_feature,
dwarf4_feature,
dwarf5_feature,
dwarf32_feature,
dwarf64_feature,
disable_debug_symbols_feature,
no_warn_non_virtual_detour_feature,
no_deprecated_enum_enum_conversion_feature,
no_volatile_feature,
fsized_deallocation_feature,
overloaded_virtual_warning_feature,
no_overloaded_virtual_warning_feature,
pessimizing_move_warning_feature,
no_invalid_offsetof_warning_feature,
no_class_memaccess_warning_feature,
]
return [
cc_common.create_cc_toolchain_config_info(
abi_libc_version = "local",
abi_version = "local",
action_configs = action_configs,
artifact_name_patterns = [],
builtin_sysroot = ctx.attr.builtin_sysroot,
cc_target_os = None,
compiler = ctx.attr.compiler,
ctx = ctx,
cxx_builtin_include_directories = ctx.attr.cxx_builtin_include_directories,
features = features,
host_system_name = "local",
make_variables = [],
target_cpu = ctx.attr.cpu,
target_libc = "local",
target_system_name = "local",
toolchain_identifier = ctx.attr.toolchain_identifier,
tool_paths = [
tool_path(name = name, path = path)
for name, path in ctx.attr.tool_paths.items()
],
),
]
mongo_cc_toolchain_config = rule(
implementation = _impl,
attrs = {
"builtin_sysroot": attr.string(),
"cxx_builtin_include_directories": attr.string_list(mandatory = True),
"cpu": attr.string(mandatory = True),
"compiler": attr.string(mandatory = True),
"extra_cflags": attr.string_list(mandatory = False),
"extra_cxxflags": attr.string_list(mandatory = False),
"extra_ldflags": attr.string_list(mandatory = False),
"includes": attr.string_list(mandatory = False),
"bin_dirs": attr.string_list(mandatory = False),
"tool_paths": attr.string_dict(mandatory = True),
"toolchain_identifier": attr.string(mandatory = True),
"verbose": attr.bool(mandatory = False),
},
provides = [CcToolchainConfigInfo],
)