Abseil Common Libraries (C++) (grcp 依赖)
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157 lines
5.3 KiB
157 lines
5.3 KiB
6 years ago
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"""Abseil compiler options.
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This is the source of truth for Abseil compiler options. To modify Abseil
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compilation options:
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(1) Edit the appropriate list in this file.
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(2) Run `python <path_to_absl>/copts/generate_copts.py`.
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The generated copts are consumed by configure_copts.bzl and
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AbseilConfigureCopts.cmake.
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"""
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import collections # absl:google-only(used for internal flags)
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COPT_VARS = {
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"GCC_FLAGS": [
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"-Wall",
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"-Wextra",
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"-Wcast-qual",
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"-Wconversion-null",
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"-Wmissing-declarations",
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"-Woverlength-strings",
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"-Wpointer-arith",
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"-Wunused-local-typedefs",
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"-Wunused-result",
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"-Wvarargs",
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"-Wvla", # variable-length array
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"-Wwrite-strings",
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# Google style does not use unsigned integers, though STL containers
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# have unsigned types.
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"-Wno-sign-compare",
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],
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"GCC_TEST_FLAGS": [
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"-Wno-conversion-null",
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"-Wno-missing-declarations",
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"-Wno-sign-compare",
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"-Wno-unused-function",
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"-Wno-unused-parameter",
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"-Wno-unused-private-field",
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],
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"GCC_EXCEPTIONS_FLAGS": ["-fexceptions"],
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# Docs on single flags is preceded by a comment.
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# Docs on groups of flags is preceded by ###.
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"LLVM_FLAGS": [
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"-Wall",
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"-Wextra",
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"-Weverything",
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# Abseil does not support C++98
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"-Wno-c++98-compat-pedantic",
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# Turns off all implicit conversion warnings. Most are re-enabled below.
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"-Wno-conversion",
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"-Wno-covered-switch-default",
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"-Wno-deprecated",
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"-Wno-disabled-macro-expansion",
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"-Wno-double-promotion",
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###
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# Turned off as they include valid C++ code.
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"-Wno-comma",
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"-Wno-extra-semi",
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"-Wno-packed",
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"-Wno-padded",
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###
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# Google style does not use unsigned integers, though STL containers
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# have unsigned types.
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"-Wno-sign-compare",
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###
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"-Wno-float-conversion",
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"-Wno-float-equal",
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"-Wno-format-nonliteral",
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# Too aggressive: warns on Clang extensions enclosed in Clang-only
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# compilation paths.
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"-Wno-gcc-compat",
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###
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# Some internal globals are necessary. Don't do this at home.
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"-Wno-global-constructors",
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"-Wno-exit-time-destructors",
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###
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"-Wno-nested-anon-types",
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"-Wno-non-modular-include-in-module",
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"-Wno-old-style-cast",
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# Warns on preferred usage of non-POD types such as string_view
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"-Wno-range-loop-analysis",
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"-Wno-reserved-id-macro",
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"-Wno-shorten-64-to-32",
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"-Wno-switch-enum",
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"-Wno-thread-safety-negative",
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"-Wno-undef",
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"-Wno-unknown-warning-option",
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"-Wno-unreachable-code",
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# Causes warnings on include guards
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"-Wno-unused-macros",
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"-Wno-weak-vtables",
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###
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# Implicit conversion warnings turned off by -Wno-conversion
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# which are re-enabled below.
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"-Wbitfield-enum-conversion",
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"-Wbool-conversion",
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"-Wconstant-conversion",
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"-Wenum-conversion",
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"-Wint-conversion",
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"-Wliteral-conversion",
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"-Wnon-literal-null-conversion",
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"-Wnull-conversion",
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"-Wobjc-literal-conversion",
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"-Wno-sign-conversion",
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"-Wstring-conversion",
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],
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"LLVM_TEST_FLAGS": [
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"-Wno-c99-extensions",
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"-Wno-missing-noreturn",
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"-Wno-missing-prototypes",
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"-Wno-missing-variable-declarations",
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"-Wno-null-conversion",
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"-Wno-shadow",
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"-Wno-shift-sign-overflow",
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"-Wno-sign-compare",
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"-Wno-unused-function",
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"-Wno-unused-member-function",
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"-Wno-unused-parameter",
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"-Wno-unused-private-field",
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"-Wno-unused-template",
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"-Wno-used-but-marked-unused",
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"-Wno-zero-as-null-pointer-constant",
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# gtest depends on this GNU extension being offered.
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"-Wno-gnu-zero-variadic-macro-arguments",
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],
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"LLVM_EXCEPTIONS_FLAGS": ["-fexceptions"],
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# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
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"MSVC_FLAGS": [
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"/W3",
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"/wd4005", # macro-redefinition
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"/wd4068", # unknown pragma
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"/wd4180", # qualifier applied to function type has no meaning; ignored
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"/wd4244", # conversion from 'type1' to 'type2', possible loss of data
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"/wd4267", # conversion from 'size_t' to 'type', possible loss of data
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# forcing value to bool 'true' or 'false' (performance warning)
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"/wd4800",
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"/DNOMINMAX", # Don't define min and max macros (windows.h)
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# Don't bloat namespace with incompatible winsock versions.
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"/DWIN32_LEAN_AND_MEAN",
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# Don't warn about usage of insecure C functions.
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"/D_CRT_SECURE_NO_WARNINGS",
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"/D_SCL_SECURE_NO_WARNINGS",
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# Introduced in VS 2017 15.8, allow overaligned types in aligned_storage
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"/D_ENABLE_EXTENDED_ALIGNED_STORAGE",
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],
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"MSVC_TEST_FLAGS": [
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"/wd4018", # signed/unsigned mismatch
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"/wd4101", # unreferenced local variable
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"/wd4503", # decorated name length exceeded, name was truncated
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],
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"MSVC_EXCEPTIONS_FLAGS": [
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"/U_HAS_EXCEPTIONS", "/D_HAS_EXCEPTIONS=1", "/EHsc"
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]
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}
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