re PR target/34299 ([avr] ICE on function attribute syntax for main())

	PR target/34299
	* config/avr/avr.c (avr_handle_fndecl_attribute): Move code for
	generate a warning if the function name does not begin with
	"__vector" and the function has either the 'signal' or 'interrupt'
	attribute, from here to ...
	(avr_declare_function_name): ...here. New function.
	* config/avr/avr.h (ASM_DECLARE_FUNCTION_NAME): Redefine.
	* config/avr/avr-protos.h (avr_declare_function_name): Declare.

From-SVN: r144870

3 files changed, 36 insertions, 31 deletions

diff --git a/gcc/config/avr/avr-protos.h b/gcc/config/avr/avr-protos.h
index bcf81d9..2df4a16 100644
--- a/gcc/config/avr/avr-protos.h
+++ b/gcc/config/avr/avr-protos.h
@@ -1,6 +1,6 @@
 /* Prototypes for exported functions defined in avr.c
    
-   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008
+   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009
    Free Software Foundation, Inc.
    Contributed by Denis Chertykov (denisc@overta.ru)
 
@@ -32,6 +32,7 @@ extern enum reg_class avr_regno_reg_class (int r);
 extern enum reg_class avr_reg_class_from_letter (int c);
 extern int frame_pointer_required_p (void);
 extern void asm_globalize_label (FILE *file, const char *name);
+extern void avr_asm_declare_function_name (FILE *, const char *, tree);
 extern void order_regs_for_local_alloc (void);
 extern int initial_elimination_offset (int from, int to);
 extern int avr_simple_epilogue (void);
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index f8ef6d5..08aace6 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -4595,6 +4595,39 @@ avr_assemble_integer (rtx x, unsigned int size, int aligned_p)
   return default_assemble_integer (x, size, aligned_p);
 }
 
+/* Worker function for ASM_DECLARE_FUNCTION_NAME.  */
+
+void
+avr_asm_declare_function_name (FILE *file, const char *name, tree decl)
+{
+
+  /* If the function has the 'signal' or 'interrupt' attribute, test to
+     make sure that the name of the function is "__vector_NN" so as to
+     catch when the user misspells the interrupt vector name.  */
+
+  if (cfun->machine->is_interrupt)
+    {
+      if (strncmp (name, "__vector", strlen ("__vector")) != 0)
+        {
+          warning_at (DECL_SOURCE_LOCATION (decl), 0,
+                      "%qs appears to be a misspelled interrupt handler",
+                      name);
+        }
+    }
+  else if (cfun->machine->is_signal)
+    {
+      if (strncmp (name, "__vector", strlen ("__vector")) != 0)
+        {
+           warning_at (DECL_SOURCE_LOCATION (decl), 0,
+                       "%qs appears to be a misspelled signal handler",
+                       name);
+        }
+    }
+
+  ASM_OUTPUT_TYPE_DIRECTIVE (file, name, "function");
+  ASM_OUTPUT_LABEL (file, name);
+}
+
 /* The routine used to output NUL terminated strings.  We use a special
    version of this for most svr4 targets because doing so makes the
    generated assembly code more compact (and thus faster to assemble)
@@ -4779,32 +4812,6 @@ avr_handle_fndecl_attribute (tree *node, tree name,
 	       IDENTIFIER_POINTER (name));
       *no_add_attrs = true;
     }
-  else
-    {
-      const char *func_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (*node));
-      const char *attr = IDENTIFIER_POINTER (name);
-
-      /* If the function has the 'signal' or 'interrupt' attribute, test to
-         make sure that the name of the function is "__vector_NN" so as to
-         catch when the user misspells the interrupt vector name.  */
-
-      if (strncmp (attr, "interrupt", strlen ("interrupt")) == 0)
-        {
-          if (strncmp (func_name, "__vector", strlen ("__vector")) != 0)
-            {
-              warning (0, "%qs appears to be a misspelled interrupt handler",
-                       func_name);
-            }
-        }
-      else if (strncmp (attr, "signal", strlen ("signal")) == 0)
-        {
-          if (strncmp (func_name, "__vector", strlen ("__vector")) != 0)
-            {
-              warning (0, "%qs appears to be a misspelled signal handler",
-                       func_name);
-            }
-        }
-    }
 
   return NULL_TREE;
 }
diff --git a/gcc/config/avr/avr.h b/gcc/config/avr/avr.h
index 8a4d98a..c41ac0b 100644
--- a/gcc/config/avr/avr.h
+++ b/gcc/config/avr/avr.h
@@ -590,10 +590,7 @@ do {									\
    specific tm.h file (depending upon the particulars of your assembler).  */
 
 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)		\
-do {								\
-     ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");	\
-     ASM_OUTPUT_LABEL (FILE, NAME);				\
-} while (0)
+avr_asm_declare_function_name ((FILE), (NAME), (DECL))
 
 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)			\
   do {									\