libiberty.h (reconcat): New function.

include:
	* libiberty.h (reconcat): New function.

libiberty:
	* concat.c (reconcat): New function.

gcc:
	* c-aux-info.c (affix_data_type): Use ATTRIBUTE_MALLOC.  Avoid
	leak by passing malloc'ed pointer to reconcat, not concat.

From-SVN: r45789

1 files changed, 25 insertions, 0 deletions

diff --git a/libiberty/concat.c b/libiberty/concat.c
index feed0df819b..136e8be866e 100644
--- a/libiberty/concat.c
+++ b/libiberty/concat.c
@@ -171,6 +171,31 @@ concat VPARAMS ((const char *first, ...))
   return newstr;
 }
 
+char *
+reconcat VPARAMS ((char *optr, const char *first, ...))
+{
+  char *newstr;
+
+  /* First compute the size of the result and get sufficient memory.  */
+  VA_OPEN (args, first);
+  VA_FIXEDARG (args, char *, optr);
+  VA_FIXEDARG (args, const char *, first);
+  newstr = (char *) xmalloc (vconcat_length (first, args) + 1);
+  VA_CLOSE (args);
+
+  /* Now copy the individual pieces to the result string. */
+  VA_OPEN (args, first);
+  VA_FIXEDARG (args, char *, optr);
+  VA_FIXEDARG (args, const char *, first);
+  vconcat_copy (newstr, first, args);
+  VA_CLOSE (args);
+
+  if (optr)
+    free (optr);
+
+  return newstr;
+}
+
 #ifdef MAIN
 #define NULLP (char *)0