[compiler-rt] [builitins] Only try to use getauxval on Linux (PR #104047)

[Brad Smith via llvm-commits]

https://github.com/brad0 created https://github.com/llvm/llvm-project/pull/104047

OpenBSD now has sys/auxv.h but does not use getauxval.

>From 2584522968c259295a6b0fc83fea87cf7fb693f5 Mon Sep 17 00:00:00 2001
From: Brad Smith <brad at comstyle.com>
Date: Wed, 14 Aug 2024 11:51:34 -0400
Subject: [PATCH] [builitins] Only try to use getauxval on Linux

OpenBSD now has sys/auxv.h but does not use getauxval.
---
 compiler-rt/lib/builtins/cpu_model/aarch64.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/compiler-rt/lib/builtins/cpu_model/aarch64.c b/compiler-rt/lib/builtins/cpu_model/aarch64.c
index ec4b08bfa89ac8..0dd397783b67f5 100644
--- a/compiler-rt/lib/builtins/cpu_model/aarch64.c
+++ b/compiler-rt/lib/builtins/cpu_model/aarch64.c
@@ -45,7 +45,7 @@ _Bool __aarch64_have_lse_atomics
 #elif defined(__ANDROID__)
 #include "aarch64/hwcap.inc"
 #include "aarch64/lse_atomics/android.inc"
-#elif __has_include(<sys/auxv.h>)
+#elif defined(__linux__) && __has_include(<sys/auxv.h>)
 #include "aarch64/hwcap.inc"
 #include "aarch64/lse_atomics/getauxval.inc"
 #else
@@ -73,7 +73,7 @@ struct {
 #elif defined(__ANDROID__)
 #include "aarch64/fmv/mrs.inc"
 #include "aarch64/fmv/android.inc"
-#elif __has_include(<sys/auxv.h>)
+#elif defined(__linux__) && __has_include(<sys/auxv.h>)
 #include "aarch64/fmv/mrs.inc"
 #include "aarch64/fmv/getauxval.inc"
 #else