[llvm] [llvm-exegesis][AArch64] Adding PR_PAC_APIAKEY macro definition (PR #137888)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-tools-llvm-exegesis

Author: Haowei (zeroomega)

<details>
<summary>Changes</summary>

In older Linux distros, PR_PAC_APIAKEY is not defined and it causes build failures on linux arm64 platform. This patch adds the definition of this macro if it is not defined.

---
Full diff: https://github.com/llvm/llvm-project/pull/137888.diff


1 Files Affected:

- (modified) llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp (+3) 


``````````diff
diff --git a/llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp b/llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp
index 6d8e19e5820c7..aa34522cd7b7d 100644
--- a/llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp
+++ b/llvm/tools/llvm-exegesis/lib/AArch64/Target.cpp
@@ -18,6 +18,9 @@
 #ifndef PR_PAC_GET_ENABLED_KEYS
 #define PR_PAC_GET_ENABLED_KEYS 61
 #endif
+#ifndef PR_PAC_APIAKEY
+#define PR_PAC_APIAKEY			    (1UL << 0)
+#endif
 #endif
 
 #define GET_AVAILABLE_OPCODE_CHECKER

``````````

</details>


https://github.com/llvm/llvm-project/pull/137888