2010-04-08 Manuel López-Ibáñez <manu@gcc.gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / input.h

diff --git a/gcc/input.h b/gcc/input.h
index 4a3040c..7f00dc7 100644 (file)
--- a/gcc/input.h
+++ b/gcc/input.h
@@ -1,6 +1,6 @@
 /* Declarations for variables relating to reading the source file.
    Used by parsers, lexical analyzers, and error message routines.
-   Copyright (C) 1993, 1997, 1998, 2000, 2003, 2004, 2007, 2008
+   Copyright (C) 1993, 1997, 1998, 2000, 2003, 2004, 2007, 2008, 2009
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -30,7 +30,12 @@ extern GTY(()) struct line_maps *line_table;
 #define UNKNOWN_LOCATION ((source_location) 0)
 
 /* The location for declarations in "<built-in>" */
-#define BUILTINS_LOCATION ((source_location) 2)
+#define BUILTINS_LOCATION ((source_location) 1)
+
+/* line-map.c reserves RESERVED_LOCATION_COUNT to the user.  Ensure
+   both UNKNOWN_LOCATION and BUILTINS_LOCATION fit into that.  */
+extern char builtins_location_check[(BUILTINS_LOCATION
+                                    < RESERVED_LOCATION_COUNT) ? 1 : -1];
 
 typedef struct GTY (())
 {
@@ -41,6 +46,9 @@ typedef struct GTY (())
   int line;
 
   int column;
+
+  /* In a system header?. */
+  bool sysp;
 } expanded_location;
 
 extern expanded_location expand_location (source_location);
@@ -49,34 +57,17 @@ extern expanded_location expand_location (source_location);
    This could be removed but it hardly seems worth the effort.  */
 typedef source_location location_t;
 
-struct file_stack
-{
-  struct file_stack *next;
-  location_t location;
-};
-
 /* Top-level source file.  */
 extern const char *main_input_filename;
 
 extern location_t input_location;
-extern void push_srcloc (location_t);
-extern void pop_srcloc (void);
-extern void restore_input_file_stack (int);
 
 #define LOCATION_FILE(LOC) ((expand_location (LOC)).file)
 #define LOCATION_LINE(LOC) ((expand_location (LOC)).line)
 
 #define input_line LOCATION_LINE (input_location)
 #define input_filename LOCATION_FILE (input_location)
-
-/* Stack of currently pending input files.
-   The line member is not accurate for the innermost file on the stack.  */
-extern struct file_stack *input_file_stack;
-
-/* Incremented on each change to input_file_stack.  */
-extern int input_file_stack_tick;
-
-/* The number of bits available for input_file_stack_tick.  */
-#define INPUT_FILE_STACK_BITS  31
+#define in_system_header_at(LOC) ((expand_location (LOC)).sysp != 0)
+#define in_system_header (in_system_header_at (input_location))
 
 #endif