[PATCH] D126224: Add DWARF string debug to clang release notes.

[Mitch Phillips via Phabricator via cfe-commits]

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D12353 <https://reviews.llvm.org/D12353> added inline strings to the DWARF info produced by clang. This
turns out to break some debugging software that assumes that a
DW_TAG_variable *must* come with a DW_AT_name. Add a release note to
broadcast this change.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D126224

Files:
  clang/docs/ReleaseNotes.rst


Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -110,12 +110,12 @@
   `51414 <https://github.com/llvm/llvm-project/issues/51414>`_,
   `51416 <https://github.com/llvm/llvm-project/issues/51416>`_,
   and `51641 <https://github.com/llvm/llvm-project/issues/51641>`_.
-- The builtin function __builtin_dump_struct would crash clang when the target 
+- The builtin function __builtin_dump_struct would crash clang when the target
   struct contains a bitfield. It now correctly handles bitfields.
   This fixes Issue `Issue 54462 <https://github.com/llvm/llvm-project/issues/54462>`_.
 - Statement expressions are now disabled in default arguments in general.
   This fixes Issue `Issue 53488 <https://github.com/llvm/llvm-project/issues/53488>`_.
-- According to `CWG 1394 <https://wg21.link/cwg1394>`_ and 
+- According to `CWG 1394 <https://wg21.link/cwg1394>`_ and
   `C++20 [dcl.fct.def.general]p2 <https://timsong-cpp.github.io/cppwp/n4868/dcl.fct.def#general-2.sentence-3>`_,
   Clang should not diagnose incomplete types in function definitions if the function body is "= delete;".
   This fixes Issue `Issue 52802 <https://github.com/llvm/llvm-project/issues/52802>`_.
@@ -440,6 +440,12 @@
 DWARF Support in Clang
 ----------------------
 
+- clang now adds DWARF information for inline strings in C/C++ programs,
+  allowing ``line:column`` symbolization of strings. Some debugging programs may
+  require updating, as this takes advantage of DWARF ``DW_TAG_variable``
+  structures *without* a ``DW_AT_name`` field, which is valid DWARF, but may
+  lead to assertion failures in some software.
+
 Arm and AArch64 Support in Clang
 --------------------------------
 
@@ -503,7 +509,7 @@
 
 - Added a new checker ``alpha.unix.cstring.UninitializedRead`` this will check for uninitialized reads
   from common memory copy/manipulation functions such as ``memcpy``, ``mempcpy``, ``memmove``, ``memcmp``, `
-  `strcmp``, ``strncmp``, ``strcpy``, ``strlen``, ``strsep`` and many more. Although 
+  `strcmp``, ``strncmp``, ``strcpy``, ``strlen``, ``strsep`` and many more. Although
   this checker currently is in list of alpha checkers due to a false positive.
 
 .. _release-notes-ubsan:


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