diff options
Diffstat (limited to 'cmake/Modules/detectCacheSize.cmake')
| -rwxr-xr-x | cmake/Modules/detectCacheSize.cmake | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/cmake/Modules/detectCacheSize.cmake b/cmake/Modules/detectCacheSize.cmake new file mode 100755 index 000000000..a8209bb27 --- /dev/null +++ b/cmake/Modules/detectCacheSize.cmake @@ -0,0 +1,21 @@ +# Detect the cache size +# +# XXX: TODO: This is a bug when cross compiling. We are detecting the local +# Cache Line size and not the target cache line size. We should provide some +# way to define this + +set(LEVEL1_DCACHE_LINESIZE 32) + +if( APPLE ) + execute_process(COMMAND sysctl -n hw.cachelinesize + OUTPUT_VARIABLE LEVEL1_DCACHE_LINESIZE + OUTPUT_STRIP_TRAILING_WHITESPACE) +endif( APPLE ) + +if( ${CMAKE_SYSTEM_NAME} STREQUAL "Linux" ) + execute_process(COMMAND getconf LEVEL1_DCACHE_LINESIZE + OUTPUT_VARIABLE LEVEL1_DCACHE_LINESIZE + OUTPUT_STRIP_TRAILING_WHITESPACE) +endif() + +message(STATUS "Cache line size: ${LEVEL1_DCACHE_LINESIZE}") |