commit 14792b5128ec041ff2b730c816dc1580b339c5c6
author Dave Lee <davelee.com@gmail.com> Mon Feb 08 17:33:53 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Tue Feb 09 11:39:50 2021 -0800
tree cddbcc482d8c036c96f0db8c8e785e3528ed0901
parent 10940e2620dc48aad7d3837e8a2db837af8ea1e0

[lldb] Fix crash in FormatEntity for mangled-name

Check a `Block` pointer before dereferencing.

Using `function.mangled-name` led to a crash for a frame where the symbol
context had no block info. In my case, the frame's function was a system frame.

Differential Revision: https://reviews.llvm.org/D96307

GitOrigin-RevId: 7dc324aafa2b17a4f9a992b9727a3642505053a6

source/Core/FormatEntity.cpp

diff --git a/source/Core/FormatEntity.cpp b/source/Core/FormatEntity.cpp
index d491ac1..0ffd599 100644
--- a/source/Core/FormatEntity.cpp
+++ b/source/Core/FormatEntity.cpp
@@ -1769,7 +1769,7 @@
       return false;
     s.PutCString(name);
 
-    if (sc->block->GetContainingInlinedBlock()) {
+    if (sc->block && sc->block->GetContainingInlinedBlock()) {
       if (const InlineFunctionInfo *inline_info =
               sc->block->GetInlinedFunctionInfo()) {
         s.PutCString(" [inlined] ");