srcpos.h revision 910efac4b49f43cb1b66eef5aa0bbd020920bf2a 
1/*
2 * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
8 *
9 *  This program is distributed in the hope that it will be useful,
10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 *  General Public License for more details.
13 *
14 *  You should have received a copy of the GNU General Public License
15 *  along with this program; if not, write to the Free Software
16 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
17 *                                                                   USA
18 */
19
20/*
21 * Augment the standard YYLTYPE with a filenum index into an
22 * array of all opened filenames.
23 */
24
25#include <stdio.h>
26
27struct dtc_file {
28	const char *dir;
29	const char *name;
30	FILE *file;
31};
32
33#if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
34typedef struct YYLTYPE {
35    int first_line;
36    int first_column;
37    int last_line;
38    int last_column;
39    struct dtc_file *file;
40} YYLTYPE;
41
42#define YYLTYPE_IS_DECLARED	1
43#define YYLTYPE_IS_TRIVIAL	1
44#endif
45
46/* Cater to old parser templates. */
47#ifndef YYID
48#define YYID(n)	(n)
49#endif
50
51#define YYLLOC_DEFAULT(Current, Rhs, N)					\
52    do									\
53      if (YYID (N))							\
54	{								\
55	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
56	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
57	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
58	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
59	  (Current).file         = YYRHSLOC (Rhs, N).file;		\
60	}								\
61      else								\
62	{								\
63	  (Current).first_line   = (Current).last_line   =		\
64	    YYRHSLOC (Rhs, 0).last_line;				\
65	  (Current).first_column = (Current).last_column =		\
66	    YYRHSLOC (Rhs, 0).last_column;				\
67	  (Current).file         = YYRHSLOC (Rhs, 0).file;		\
68	}								\
69    while (YYID (0))
70
71
72
73extern void yyerror(char const *);
74extern void yyerrorf(char const *, ...) __attribute__((format(printf, 1, 2)));
75
76extern struct dtc_file *srcpos_file;
77
78extern int push_input_file(const char *filename);
79extern int pop_input_file(void);
80
81struct search_path {
82	const char *dir; /* NULL for current directory */
83	struct search_path *prev, *next;
84};
85
86extern struct dtc_file *dtc_open_file(const char *fname,
87                                      const struct search_path *search);
88extern void dtc_close_file(struct dtc_file *file);
89