M115 needs ifuncs for this -- --- a/base/allocator/partition_allocator/partition_alloc_config.h +++ b/base/allocator/partition_allocator/partition_alloc_config.h @@ -155,7 +155,7 @@ #define PA_CONFIG_HAS_MEMORY_TAGGING() \ (defined(ARCH_CPU_ARM64) && defined(__clang__) && \ !defined(ADDRESS_SANITIZER) && \ - (BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_ANDROID))) + ((BUILDFLAG(IS_LINUX) && defined(__GLIBC__)) || BUILDFLAG(IS_ANDROID))) #if PA_CONFIG(HAS_MEMORY_TAGGING) static_assert(sizeof(void*) == 8);