082c006c04
... notably, this includes Abseil's own StatusOr type, which conflicted with our implementation (that was taken from TensorFlow). Change-Id: Ie7d6764b64055caaeb8dc7b6b9d066291e6b538f
162 lines
5.4 KiB
Python
162 lines
5.4 KiB
Python
"""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-c99-extensions",
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"-Wno-deprecated-declarations",
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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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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-conversion-null",
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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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"-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",
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"-Wstring-conversion",
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"-Wtautological-overlap-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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"-Wno-implicit-int-conversion",
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"-Wno-shorten-64-to-32",
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"-Wno-sign-conversion",
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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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