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https://github.com/jart/cosmopolitan.git
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2ab9e9f7fd
- Introduce portable sched_getcpu() api - Support GCC's __target_clones__ feature - Make fma() go faster on x86 in default mode - Remove some asan checks from core libraries - WinMain() now ensures $HOME and $USER are defined
33 lines
1.4 KiB
C
33 lines
1.4 KiB
C
//===-- cpu_model_common.c - Utilities for cpu model detection ----*- C -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements common utilities for runtime cpu model detection.
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//
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//===----------------------------------------------------------------------===//
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#ifndef COMPILER_RT_LIB_BUILTINS_CPU_MODEL_COMMON_H
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#define COMPILER_RT_LIB_BUILTINS_CPU_MODEL_COMMON_H
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#if __has_attribute(constructor)
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#if __GNUC__ >= 9
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// Ordinarily init priorities below 101 are disallowed as they are reserved for
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// the implementation. However, we are the implementation, so silence the
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// diagnostic, since it doesn't apply to us.
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#pragma GCC diagnostic ignored "-Wprio-ctor-dtor"
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#endif
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// We're choosing init priority 90 to force our constructors to run before any
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// constructors in the end user application (starting at priority 101). This
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// value matches the libgcc choice for the same functions.
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#define CONSTRUCTOR_ATTRIBUTE __attribute__((__constructor__(90)))
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#else
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// FIXME: For MSVC, we should make a function pointer global in .CRT$X?? so that
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// this runs during initialization.
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#define CONSTRUCTOR_ATTRIBUTE
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#endif
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#endif
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