Abseil Common Libraries (C++) (grcp 依赖)
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162 lines
5.5 KiB
162 lines
5.5 KiB
"""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 based on the platform the flag is |
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needed on. |
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(2) Run `<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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# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ... |
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MSVC_BIG_WARNING_FLAGS = [ |
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"/W3", |
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] |
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LLVM_TEST_DISABLE_WARNINGS_FLAGS = [ |
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"-Wno-deprecated-declarations", |
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"-Wno-implicit-int-conversion", |
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"-Wno-missing-prototypes", |
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"-Wno-missing-variable-declarations", |
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"-Wno-shadow", |
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"-Wno-shorten-64-to-32", |
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"-Wno-sign-compare", |
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"-Wno-sign-conversion", |
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"-Wno-unreachable-code-loop-increment", |
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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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# 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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MSVC_DEFINES = [ |
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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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COPT_VARS = { |
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"ABSL_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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"-Wformat-security", |
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"-Wmissing-declarations", |
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"-Woverlength-strings", |
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"-Wpointer-arith", |
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"-Wundef", |
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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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# Don't define min and max macros (Build on Windows using gcc) |
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"-DNOMINMAX", |
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], |
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"ABSL_GCC_TEST_FLAGS": [ |
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"-Wno-deprecated-declarations", |
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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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"ABSL_LLVM_FLAGS": [ |
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"-Wall", |
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"-Wextra", |
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"-Wcast-qual", |
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"-Wconversion", |
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"-Wfloat-overflow-conversion", |
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"-Wfloat-zero-conversion", |
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"-Wfor-loop-analysis", |
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"-Wformat-security", |
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"-Wgnu-redeclared-enum", |
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"-Winfinite-recursion", |
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"-Winvalid-constexpr", |
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"-Wliteral-conversion", |
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"-Wmissing-declarations", |
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"-Woverlength-strings", |
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"-Wpointer-arith", |
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"-Wself-assign", |
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"-Wshadow-all", |
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"-Wstring-conversion", |
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"-Wtautological-overlap-compare", |
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"-Wtautological-unsigned-zero-compare", |
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"-Wundef", |
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"-Wuninitialized", |
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"-Wunreachable-code", |
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"-Wunused-comparison", |
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"-Wunused-local-typedefs", |
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"-Wunused-result", |
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"-Wvla", |
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"-Wwrite-strings", |
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# Warnings that are enabled by group warning flags like -Wall that we |
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# explicitly disable. |
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"-Wno-float-conversion", |
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"-Wno-implicit-float-conversion", |
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"-Wno-implicit-int-float-conversion", |
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# Disable warnings on unknown warning flags (when warning flags are |
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# unknown on older compiler versions) |
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"-Wno-unknown-warning-option", |
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# Don't define min and max macros (Build on Windows using clang) |
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"-DNOMINMAX", |
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], |
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"ABSL_LLVM_TEST_FLAGS": |
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LLVM_TEST_DISABLE_WARNINGS_FLAGS, |
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"ABSL_CLANG_CL_FLAGS": |
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(MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES), |
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"ABSL_CLANG_CL_TEST_FLAGS": |
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LLVM_TEST_DISABLE_WARNINGS_FLAGS, |
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"ABSL_MSVC_FLAGS": |
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MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES + [ |
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# Increase the number of sections available in object files |
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"/bigobj", |
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"/wd4005", # macro-redefinition |
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"/wd4068", # unknown pragma |
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# qualifier applied to function type has no meaning; ignored |
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"/wd4180", |
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# conversion from 'type1' to 'type2', possible loss of data |
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"/wd4244", |
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# conversion from 'size_t' to 'type', possible loss of data |
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"/wd4267", |
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# The decorated name was longer than the compiler limit |
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"/wd4503", |
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# forcing value to bool 'true' or 'false' (performance warning) |
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"/wd4800", |
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], |
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"ABSL_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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"/wd4996", # use of deprecated symbol |
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"/DNOMINMAX", # disable the min() and max() macros from <windows.h> |
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], |
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"ABSL_MSVC_LINKOPTS": [ |
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# Object file doesn't export any previously undefined symbols |
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"-ignore:4221", |
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], |
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# "HWAES" is an abbreviation for "hardware AES" (AES - Advanced Encryption |
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# Standard). These flags are used for detecting whether or not the target |
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# architecture has hardware support for AES instructions which can be used |
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# to improve performance of some random bit generators. |
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"ABSL_RANDOM_HWAES_ARM64_FLAGS": ["-march=armv8-a+crypto"], |
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"ABSL_RANDOM_HWAES_ARM32_FLAGS": ["-mfpu=neon"], |
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"ABSL_RANDOM_HWAES_X64_FLAGS": [ |
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"-maes", |
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"-msse4.1", |
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], |
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"ABSL_RANDOM_HWAES_MSVC_X64_FLAGS": [], |
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}
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