From: Hannes Domani <ssbssa@yahoo.de>
Date: Tue, 6 Oct 2020 15:08:42 +0000 (+0200)
Subject: Don't create _Complex type name if there is no target type name
X-Git-Tag: gdb-10.1-release~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7565d82a500dc084347db7e472d73ef38872b1dc;p=thirdparty%2Fbinutils-gdb.git

Don't create _Complex type name if there is no target type name

This causes gdb to crash in strlen.

Happens if init_complex_type is called for a type created by
dbx_init_float_type in stabsread.c.

gdb/ChangeLog:

2020-10-22  Hannes Domani  <ssbssa@yahoo.de>

	* gdbtypes.c (init_complex_type): Check target type name.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 4358b449856..4baafd41094 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2020-10-22  Hannes Domani  <ssbssa@yahoo.de>
+
+	* gdbtypes.c (init_complex_type): Check target type name.
+
 2020-10-22  Simon Marchi  <simon.marchi@polymtl.ca>
 
 	PR gdb/26693
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index b7c8ec8e643..a40ae5f30eb 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -3283,7 +3283,7 @@ init_complex_type (const char *name, struct type *target_type)
 
   if (TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type == nullptr)
     {
-      if (name == nullptr)
+      if (name == nullptr && target_type->name () != nullptr)
 	{
 	  char *new_name
 	    = (char *) TYPE_ALLOC (target_type,