compiler_specific.h (1176B)
1 // Copyright 2023 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // This file has been copied from //base/compiler_specific.h (and then 6 // significantly trimmed to just the APIs / macros needed by //build/rust/std). 7 // 8 // TODO(crbug.com/40279749): Avoid code duplication / reuse code. 9 10 #ifndef BUILD_RUST_STD_COMPILER_SPECIFIC_H_ 11 #define BUILD_RUST_STD_COMPILER_SPECIFIC_H_ 12 13 #include "build/build_config.h" 14 15 #if defined(COMPILER_MSVC) && !defined(__clang__) 16 #error "Only clang-cl is supported on Windows, see https://crbug.com/988071" 17 #endif 18 19 #if defined(__has_attribute) 20 #define HAS_ATTRIBUTE(x) __has_attribute(x) 21 #else 22 #define HAS_ATTRIBUTE(x) 0 23 #endif 24 25 // Annotate a function indicating it should not be inlined. 26 // Use like: 27 // NOINLINE void DoStuff() { ... } 28 #if defined(__clang__) && HAS_ATTRIBUTE(noinline) 29 #define NOINLINE [[clang::noinline]] 30 #elif defined(COMPILER_GCC) && HAS_ATTRIBUTE(noinline) 31 #define NOINLINE __attribute__((noinline)) 32 #elif defined(COMPILER_MSVC) 33 #define NOINLINE __declspec(noinline) 34 #else 35 #define NOINLINE 36 #endif 37 38 #endif // BUILD_RUST_STD_COMPILER_SPECIFIC_H_