[all-commits] [llvm/llvm-project] cf51bf: [lldb] Account for objc_debug_class_getNameRaw ret...

[Jonas Devlieghere via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cf51bf77b070f63391bacada5e166bfec2616989
      https://github.com/llvm/llvm-project/commit/cf51bf77b070f63391bacada5e166bfec2616989
  Author: Jonas Devlieghere <jonas at devlieghere.com>
  Date:   2021-04-01 (Thu, 01 Apr 2021)

  Changed paths:
    M lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp

  Log Message:
  -----------
  [lldb] Account for objc_debug_class_getNameRaw returning NULL

On macOS Catalina, calling objc_debug_class_getNameRaw on some of the
ISA pointers returns NULL, causing us to crash and unwind before reading
all the Objective-C classes. This does not happen on macOS Big Sur.
Account for that possibility and skip the class when that happens.