[PATCH] [PR symtab/17591] Better fix

[PATCH] [PR symtab/17591] Better fix

[Doug Evans]

Hi.

PR 17591 is about handling stripping parameters from the name
to be looked up when the string also contains "(anonymous namespace)".
[btw, I think an audit of gdb is in order: I'm finding more of these.]

This patch does this using the same mechanism psymtab.c does:
cp_remove_params.

Regression tested on amd64-linux, with gdb_index.

2014-11-26  Doug Evans  <dje@google.com>

	PR symtab/17591
	* dwarf2read.c (find_slot_in_mapped_hash): Use cp_remove_params
	to strip parameters.

diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 0790388..2b7f8ff 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -2918,22 +2918,16 @@ find_slot_in_mapped_hash (struct mapped_index *index, const char *name,
     {
       /* NAME is already canonical.  Drop any qualifiers as .gdb_index does
 	 not contain any.  */
-      const char *paren = NULL;
 
-      /* Need to handle "(anonymous namespace)".  */
-      if (*name != '(')
-	paren = strchr (name, '(');
-
-      if (paren)
+      if (strchr (name, '(') != NULL)
 	{
-	  char *dup;
-
-	  dup = xmalloc (paren - name + 1);
-	  memcpy (dup, name, paren - name);
-	  dup[paren - name] = 0;
+	  char *without_params = cp_remove_params (name);
 
-	  make_cleanup (xfree, dup);
-	  name = dup;
+	  if (without_params != NULL)
+	    {
+	      make_cleanup (xfree, without_params);
+	      name = without_params;
+	    }
 	}
     }
 

Re: [PATCH] [PR symtab/17591] Better fix

[Doug Evans]

Doug Evans writes:
 > Hi.
 > 
 > PR 17591 is about handling stripping parameters from the name
 > to be looked up when the string also contains "(anonymous namespace)".
 > [btw, I think an audit of gdb is in order: I'm finding more of these.]
 > 
 > This patch does this using the same mechanism psymtab.c does:
 > cp_remove_params.
 > 
 > Regression tested on amd64-linux, with gdb_index.
 > 
 > 2014-11-26  Doug Evans  <dje@google.com>
 > 
 > 	PR symtab/17591
 > 	* dwarf2read.c (find_slot_in_mapped_hash): Use cp_remove_params
 > 	to strip parameters.

Committed.