[PATCH 30/48] objtool/klp: Handle Clang .data..Lanon anonymous data sections

[Josh Poimboeuf]

Clang generates anonymous data sections named .data..Lanon.<hash>.
These need section-symbol references in the same way as .data..Lubsan
(GCC) and .data..L__unnamed_ (Clang UBSAN) sections.  Without this,
convert_reloc_sym() fails when processing relocations that reference
these sections.

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
 tools/objtool/klp-diff.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/objtool/klp-diff.c b/tools/objtool/klp-diff.c
index 57d2af98a33c..1951a8b2df44 100644
--- a/tools/objtool/klp-diff.c
+++ b/tools/objtool/klp-diff.c
@@ -873,9 +873,10 @@ static bool section_reference_needed(struct section *sec)
 	if (strstarts(sec->name, ".rodata"))
 		return true;
 
-	/* UBSAN anonymous data */
+	/* Anonymous data (UBSAN, Clang anonymous constants, etc.) */
 	if (strstarts(sec->name, ".data..Lubsan") ||	/* GCC */
-	    strstarts(sec->name, ".data..L__unnamed_"))	/* Clang */
+	    strstarts(sec->name, ".data..L__unnamed_") ||	/* Clang */
+	    strstarts(sec->name, ".data..Lanon."))	/* Clang */
 		return true;
 
 	return false;
-- 
2.53.0