[compiler-rt] 2eaba46 - compiler-rt: Use OpenBSD's elf_aux_info to detect AArch64 HW features (#155768)

[via llvm-commits]

Author: Brad Smith
Date: 2025-08-28T13:58:47-04:00
New Revision: 2eaba46f463e79212d549e2ebf74e5d53b88b76b

URL: https://github.com/llvm/llvm-project/commit/2eaba46f463e79212d549e2ebf74e5d53b88b76b
DIFF: https://github.com/llvm/llvm-project/commit/2eaba46f463e79212d549e2ebf74e5d53b88b76b.diff

LOG: compiler-rt: Use OpenBSD's elf_aux_info to detect AArch64 HW features (#155768)

Added: 
    

Modified: 
    compiler-rt/lib/builtins/cpu_model/aarch64.c

Removed: 
    


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diff  --git a/compiler-rt/lib/builtins/cpu_model/aarch64.c b/compiler-rt/lib/builtins/cpu_model/aarch64.c
index f41c9301dc6a4..d7880529ebe70 100644
--- a/compiler-rt/lib/builtins/cpu_model/aarch64.c
+++ b/compiler-rt/lib/builtins/cpu_model/aarch64.c
@@ -34,7 +34,7 @@ typedef struct __ifunc_arg_t {
 _Bool __aarch64_have_lse_atomics
     __attribute__((visibility("hidden"), nocommon)) = false;
 
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
 // clang-format off: should not reorder sys/auxv.h alphabetically
 #include <sys/auxv.h>
 // clang-format on
@@ -68,7 +68,7 @@ struct {
 // clang-format off
 #if defined(__APPLE__)
 #include "aarch64/fmv/apple.inc"
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__OpenBSD__)
 #include "aarch64/fmv/mrs.inc"
 #include "aarch64/fmv/elf_aux_info.inc"
 #elif defined(__Fuchsia__)