[Lldb-commits] [lldb] [LLDB][Minidump] Have Minidumps save off and properly read TLS data (PR #109477)

[Jacob Lalonde via lldb-commits]

================
@@ -6528,6 +6528,74 @@ static void AddRegion(const MemoryRegionInfo &region, 
bool try_dirty_pages,
                 CreateCoreFileMemoryRange(region));
 }
 
+static void AddRegisterSections(Process &process, ThreadSP &thread_sp,
+                                CoreFileMemoryRanges &ranges,
+                                lldb::addr_t range_end) {
+  lldb::RegisterContextSP reg_ctx = thread_sp->GetRegisterContext();
+  if (!reg_ctx)
+    return;
+
+  const RegisterInfo *reg_info = reg_ctx->GetRegisterInfo(
+      lldb::RegisterKind::eRegisterKindGeneric, LLDB_REGNUM_GENERIC_TP);
+  if (!reg_info)
+    return;
+
+  lldb_private::RegisterValue reg_value;
+  bool success = reg_ctx->ReadRegister(reg_info, reg_value);
+  if (!success)
+    return;
+
+  const uint64_t fail_value = UINT64_MAX;
+  bool readSuccess = false;
+  const lldb::addr_t reg_value_addr =
+      reg_value.GetAsUInt64(fail_value, &readSuccess);
+  if (!readSuccess || reg_value_addr == fail_value)
+    return;
+
+  MemoryRegionInfo register_region;
+  Status err = process.GetMemoryRegionInfo(reg_value_addr, register_region);
+  if (err.Fail())
+    return;
+
+  // We already saved off this truncated stack range.
+  if (register_region.GetRange().GetRangeEnd() == range_end)
+    return;
----------------
Jlalond wrote:

>From my testing, it can actually be the same region. I failed several tests 
>because we were saving the full size stack region.

https://github.com/llvm/llvm-project/pull/109477
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