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Fix android hardware_destructive_inference_size issue.

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This commit is contained in:
Antonio Sánchez
2025-02-05 23:53:55 +00:00
parent 4c2611d27c
commit 4c38131a16
3 changed files with 16 additions and 8 deletions
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7
Eigen/src/Core/util/ConfigureVectorization.h
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@@ -39,8 +39,11 @@
#endif
// Align to the boundary that avoids false sharing.
// https://en.cppreference.com/w/cpp/thread/hardware_destructive_interference_size
#if defined(__cpp_lib_hardware_interference_size) && __cpp_lib_hardware_interference_size >= 201603
// https://en.cppreference.com/w/cpp/thread/hardware_destructive_interference_size
// There is a bug in android NDK < r26 where the macro is defined but std::hardware_destructive_interference_size
// still does not exist.
#if defined(__cpp_lib_hardware_interference_size) && __cpp_lib_hardware_interference_size >= 201603 && \
(!EIGEN_OS_ANDROID || __NDK_MAJOR__ + 0 >= 26)
#include <new>
#define EIGEN_ALIGN_TO_AVOID_FALSE_SHARING EIGEN_ALIGN_TO_BOUNDARY(std::hardware_destructive_interference_size)
#else

10
Eigen/src/Core/util/Macros.h
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@@ -426,6 +426,16 @@
// note: ANDROID is defined when using ndk_build, __ANDROID__ is defined when using a standalone toolchain.
#if defined(__ANDROID__) || defined(ANDROID)
#define EIGEN_OS_ANDROID 1
// Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in
// <android/ndk-version.h>. For NDK < r16, users should define these macros,
// e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11.
#if defined __has_include
#if __has_include(<android/ndk-version.h>)
#include <android/ndk-version.h>
#endif
#endif
#else
#define EIGEN_OS_ANDROID 0
#endif