commit 7b47992d0df84be09440bceda69d458a5bd19de9
author Brad Smith <brad@comstyle.com> Mon Oct 20 23:09:50 2025 -0400
committer Copybara-Service <copybara-worker@google.com> Mon Oct 20 20:15:45 2025 -0700
tree f2d0f739c456563908ba83766f87736bd5bab176
parent 62518c8b4397c71e60cb71e18398e0607aef9f3f

[OpenMP][AArch64] Enable BTI and PAC support on OpenBSD (#164337)

GitOrigin-RevId: d10af9d39805fb05d7e36cc815ce19014f6b4dae

runtime/src/z_Linux_asm.S

diff --git a/runtime/src/z_Linux_asm.S b/runtime/src/z_Linux_asm.S
index de422f8..ec4d762 100644
--- a/runtime/src/z_Linux_asm.S
+++ b/runtime/src/z_Linux_asm.S
@@ -120,7 +120,8 @@
 # endif // KMP_OS_DARWIN
 #endif // KMP_ARCH_X86 || KMP_ARCH_x86_64
 
-#if (KMP_OS_LINUX || KMP_OS_DARWIN || KMP_OS_WINDOWS) && (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32 || KMP_ARCH_ARM)
+#if (KMP_OS_LINUX || KMP_OS_DARWIN || KMP_OS_WINDOWS || KMP_OS_OPENBSD) &&     \
+    (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32 || KMP_ARCH_ARM)
 
 # if KMP_OS_DARWIN
 #  define KMP_PREFIX_UNDERSCORE(x) _##x  // extra underscore for OS X* symbols
@@ -188,7 +189,7 @@
 .endm
 # endif // KMP_OS_DARWIN
 
-# if KMP_OS_LINUX
+# if KMP_OS_LINUX || KMP_OS_OPENBSD
 // BTI and PAC gnu property note
 #  define NT_GNU_PROPERTY_TYPE_0 5
 #  define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000
@@ -235,7 +236,8 @@
 #  define PACBTI_RET
 #  define GNU_PROPERTY_BTI_PAC
 # endif
-#endif // (KMP_OS_LINUX || KMP_OS_DARWIN || KMP_OS_WINDOWS) && (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32 || KMP_ARCH_ARM)
+#endif // (KMP_OS_LINUX || KMP_OS_DARWIN || KMP_OS_WINDOWS || KMP_OS_OPENBSD) && \
+          (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32 || KMP_ARCH_ARM)
 
 .macro COMMON name, size, align_power
 #if KMP_OS_DARWIN
@@ -2516,6 +2518,7 @@
 # endif
 #endif
 
-#if KMP_OS_LINUX && (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32)
+#if (KMP_OS_LINUX || KMP_OS_OPENBSD) &&                                        \
+    (KMP_ARCH_AARCH64 || KMP_ARCH_AARCH64_32)
 GNU_PROPERTY_BTI_PAC
 #endif