[PATCH] eliminate memory leak during macro definition

["Jan Beulich" <JBeulich at novell dot com>]

This eliminates another memory leak on handling macros.

Built and tested natively on x86_64-unknown-linux-gnu and as cross tools
for a large number of targets.

Jan

gas/
2005-05-09  Jan Beulich  <jbeulich@novell.com>

	* read.c (s_macro): Move local variable 'local' to smaller scope.
	Call sb_kill on it when done.

--- /home/jbeulich/src/binutils/mainline/2005-05-06/gas/read.c	2005-05-06 08:34:42.000000000 +0200
+++ 2005-05-06/gas/read.c	2005-05-09 11:57:39.038134712 +0200
@@ -2348,7 +2348,6 @@ s_macro (int ignore ATTRIBUTE_UNUSED)
   char *file;
   unsigned int line;
   sb s;
-  sb label;
   const char *err;
   const char *name;
 
@@ -2358,11 +2357,17 @@ s_macro (int ignore ATTRIBUTE_UNUSED)
   while (!is_end_of_line[(unsigned char) *input_line_pointer])
     sb_add_char (&s, *input_line_pointer++);
 
-  sb_new (&label);
   if (line_label != NULL)
-    sb_add_string (&label, S_GET_NAME (line_label));
+    {
+      sb label;
 
-  err = define_macro (0, &s, &label, get_line_sb, file, line, &name);
+      sb_new (&label);
+      sb_add_string (&label, S_GET_NAME (line_label));
+      err = define_macro (0, &s, &label, get_line_sb, file, line, &name);
+      sb_kill (&label);
+    }
+  else
+    err = define_macro (0, &s, NULL, get_line_sb, file, line, &name);
   if (err != NULL)
     as_bad_where (file, line, err, name);
   else

Attachment: binutils-mainline-macro-label-leak.patch
Description: Text document