diff options
Diffstat (limited to 'abseil-cpp/absl/random/internal/randen_detect.cc')
| -rw-r--r-- | abseil-cpp/absl/random/internal/randen_detect.cc | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/abseil-cpp/absl/random/internal/randen_detect.cc b/abseil-cpp/absl/random/internal/randen_detect.cc index d63230c..bdeab87 100644 --- a/abseil-cpp/absl/random/internal/randen_detect.cc +++ b/abseil-cpp/absl/random/internal/randen_detect.cc @@ -1,13 +1,13 @@ // Copyright 2017 The Abseil Authors. // -// Licensed under the Apache License, Version 2.0 (the"License"); +// Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an"AS IS" BASIS, +// distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. @@ -24,6 +24,11 @@ #include "absl/random/internal/platform.h" +#if !defined(__UCLIBC__) && defined(__GLIBC__) && \ + (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16)) +#define ABSL_HAVE_GETAUXVAL +#endif + #if defined(ABSL_ARCH_X86_64) #define ABSL_INTERNAL_USE_X86_CPUID #elif defined(ABSL_ARCH_PPC) || defined(ABSL_ARCH_ARM) || \ @@ -31,7 +36,7 @@ #if defined(__ANDROID__) #define ABSL_INTERNAL_USE_ANDROID_GETAUXVAL #define ABSL_INTERNAL_USE_GETAUXVAL -#elif defined(__linux__) +#elif defined(__linux__) && defined(ABSL_HAVE_GETAUXVAL) #define ABSL_INTERNAL_USE_LINUX_GETAUXVAL #define ABSL_INTERNAL_USE_GETAUXVAL #endif @@ -40,7 +45,10 @@ #if defined(ABSL_INTERNAL_USE_X86_CPUID) #if defined(_WIN32) || defined(_WIN64) #include <intrin.h> // NOLINT(build/include_order) -#pragma intrinsic(__cpuid) +#elif ABSL_HAVE_BUILTIN(__cpuid) +// MSVC-equivalent __cpuid intrinsic declaration for clang-like compilers +// for non-Windows build environments. +extern void __cpuid(int[4], int); #else // MSVC-equivalent __cpuid intrinsic function. static void __cpuid(int cpu_info[4], int info_type) { |