https://github.com/JDevlieghere created
https://github.com/llvm/llvm-project/pull/150718
Protected m_selected_frame_idx using the StackFrameList mutex. All other
readers and writes already take the m_list_mutex so we can use that to protect
concurrent access.
>From 0c77d94246d94004e73d7e097a36bef2db9afafd Mon Sep 17 00:00:00 2001
From: Jonas Devlieghere <jo...@devlieghere.com>
Date: Fri, 25 Jul 2025 16:05:00 -0700
Subject: [PATCH] [lldb] Protect the selected frame idx in StackFrameList
Protected m_selected_frame_idx using the StackFrameList mutex. All other
readers and writes already take the m_list_mutex so we can use that to
protect concurrent access.
---
lldb/source/Target/StackFrameList.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lldb/source/Target/StackFrameList.cpp
b/lldb/source/Target/StackFrameList.cpp
index 16cd2548c2784..4c5f41f292e56 100644
--- a/lldb/source/Target/StackFrameList.cpp
+++ b/lldb/source/Target/StackFrameList.cpp
@@ -783,6 +783,8 @@ void StackFrameList::SelectMostRelevantFrame() {
uint32_t
StackFrameList::GetSelectedFrameIndex(SelectMostRelevant select_most_relevant)
{
+ std::shared_lock<std::shared_mutex> guard(m_list_mutex);
+
if (!m_selected_frame_idx && select_most_relevant)
SelectMostRelevantFrame();
if (!m_selected_frame_idx) {
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