[Lldb-commits] [lldb] d35702e - Fix LLDB build on old Linux kernels

[Walter Erquinigo via lldb-commits]

Author: Walter Erquinigo
Date: 2021-09-29T09:42:32-07:00
New Revision: d35702efe73010409c75b1f1b64f205cc3b2f6d3

URL: https://github.com/llvm/llvm-project/commit/d35702efe73010409c75b1f1b64f205cc3b2f6d3
DIFF: https://github.com/llvm/llvm-project/commit/d35702efe73010409c75b1f1b64f205cc3b2f6d3.diff

LOG: Fix LLDB build on old Linux kernels

Usage of aux_size is guarded against elsewhere in this file, but is missing here.

Reviewed By: wallace

Differential Revision: https://reviews.llvm.org/D110269

Original Author: calebzulawski

Added: 
    

Modified: 
    lldb/source/Plugins/Process/Linux/IntelPTManager.cpp

Removed: 
    


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diff  --git a/lldb/source/Plugins/Process/Linux/IntelPTManager.cpp b/lldb/source/Plugins/Process/Linux/IntelPTManager.cpp
index 0bd48933d4d3e..c5575fb30c98a 100644
--- a/lldb/source/Plugins/Process/Linux/IntelPTManager.cpp
+++ b/lldb/source/Plugins/Process/Linux/IntelPTManager.cpp
@@ -145,7 +145,11 @@ static Error CheckPsbPeriod(size_t psb_period) {
 }
 
 size_t IntelPTThreadTrace::GetTraceBufferSize() const {
+#ifndef PERF_ATTR_SIZE_VER5
+  llvm_unreachable("Intel PT Linux perf event not supported");
+#else
   return m_mmap_meta->aux_size;
+#endif
 }
 
 static Expected<uint64_t>