[Lldb-commits] [lldb] [lldb-dap] Add memory history in ASan report (PR #183740)

[via lldb-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lldb

Author: Sergei Druzhkov (DrSergei)

<details>
<summary>Changes</summary>

Added memory history in ASan report (like `memory history` console command)

---
Full diff: https://github.com/llvm/llvm-project/pull/183740.diff


1 Files Affected:

- (modified) lldb/tools/lldb-dap/Handler/ExceptionInfoRequestHandler.cpp (+19) 


``````````diff
diff --git a/lldb/tools/lldb-dap/Handler/ExceptionInfoRequestHandler.cpp b/lldb/tools/lldb-dap/Handler/ExceptionInfoRequestHandler.cpp
index c92a607d9b7b0..bded3dbd9cd81 100644
--- a/lldb/tools/lldb-dap/Handler/ExceptionInfoRequestHandler.cpp
+++ b/lldb/tools/lldb-dap/Handler/ExceptionInfoRequestHandler.cpp
@@ -231,6 +231,25 @@ static std::string FormatExtendedStopInfo(lldb::SBThread &thread) {
   // Check if we can improve the formatting of the raw JSON report.
   if (report) {
     OS << *report;
+    std::visit(
+        [&](auto &&report) {
+          using T = std::decay_t<decltype(report)>;
+          if constexpr (std::is_same_v<T, ASanReport>) {
+            lldb::addr_t address = report.address;
+            lldb::SBProcess process = thread.GetProcess();
+            lldb::SBThreadCollection history_threads =
+                process.GetHistoryThreads(address);
+            lldb::SBStream stream;
+            OS << "Memory history associated with addres: 0x"
+               << llvm::utohexstr(address) << "\n";
+            for (const auto history_thread : history_threads) {
+              if (history_thread.GetStatus(stream))
+                OS << stream << "\n";
+              stream.Clear();
+            }
+          }
+        },
+        *report);
   } else {
     consumeError(report.takeError());
     OS << stream;

``````````

</details>


https://github.com/llvm/llvm-project/pull/183740