* method.c (make_thunk): Avoid name buffer overflow.

From-SVN: r17784

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index eac96d2..6446d6a 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,7 @@
+Sun Feb  8 23:47:38 1998  scott snyder  <sss@d0linux01.fnal.gov>
+
+       * method.c (make_thunk): Avoid name buffer overflow.
+
 Sat Feb  7 16:48:54 1998  Jason Merrill  <jason@yorick.cygnus.com>
 
        * pt.c (instantiate_decl): Call cp_finish_decl for vars even if we

diff --git a/gcc/cp/method.c b/gcc/cp/method.c
index 30ddf52..e489348 100644 (file)
--- a/gcc/cp/method.c
+++ b/gcc/cp/method.c
@@ -1905,7 +1905,7 @@ make_thunk (function, delta)
      tree function;
      int delta;
 {
-  char buffer[250];
+  char *buffer;
   tree thunk_id;
   tree thunk;
   char *func_name;
@@ -1916,6 +1916,7 @@ make_thunk (function, delta)
   if (TREE_CODE (func_decl) != FUNCTION_DECL)
     abort ();
   func_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (func_decl));
+  buffer = (char *)alloca (strlen (func_name) + 32);
   if (delta<=0)
     sprintf (buffer, "__thunk_%d_%s", -delta, func_name);
   else