re PR middle-end/23221 (-fstack-protector does not protect tail call functions)

        PR 23221
        * function.c (stack_protect_epilogue): Export.
        * tree.h (stack_protect_epilogue): Declare.
        * calls.c (expand_call): Call it.

From-SVN: r102731

gcc/ChangeLog

+2005-08-03  Richard Henderson  <rth@redhat.com>
+
+	PR 23221
+	* function.c (stack_protect_epilogue): Export.
+	* tree.h (stack_protect_epilogue): Declare.
+	* calls.c (expand_call): Call it.
+
 2005-08-03  Eric Christopher  <echristo@apple.com>
 
 	* gcc.c (LINK_SSP_SPEC): Add fstack-protector-all.

gcc/calls.c

@@ -2247,6 +2247,9 @@ expand_call (tree exp, rtx target, int ignore)
       if (pass && (flags & (ECF_LIBCALL_BLOCK | ECF_MALLOC)))
 	start_sequence ();
 
+      if (pass == 0 && cfun->stack_protect_guard)
+	stack_protect_epilogue ();
+
       adjusted_args_size = args_size;
       /* Compute the actual size of the argument block required.  The variable
 	 and constant sizes must be combined, the size may have to be rounded,

gcc/function.c

@@ -4013,7 +4013,7 @@ stack_protect_prologue (void)
 # define gen_stack_protect_test(x, y, z)	(gcc_unreachable (), NULL_RTX)
 #endif
 
-static void
+void
 stack_protect_epilogue (void)
 {
   tree guard_decl = targetm.stack_protect_guard ();

gcc/tree.h

@@ -3908,6 +3908,7 @@ extern void dump_tree_statistics (void);
 extern void expand_function_end (void);
 extern void expand_function_start (tree);
 extern void stack_protect_prologue (void);
+extern void stack_protect_epilogue (void);
 extern void recompute_tree_invarant_for_addr_expr (tree);
 extern bool is_global_var (tree t);
 extern bool needs_to_live_in_memory (tree);