xref: /openbmc/linux/scripts/dtc/srcpos.h (revision b6dcefde)
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 
27 struct dtc_file {
28 	char *dir;
29 	const char *name;
30 	FILE *file;
31 };
32 
33 #if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
34 typedef 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 
73 extern void yyerror(char const *);
74 extern void yyerrorf(char const *, ...) __attribute__((format(printf, 1, 2)));
75 
76 extern struct dtc_file *srcpos_file;
77 
78 struct search_path {
79 	const char *dir; /* NULL for current directory */
80 	struct search_path *prev, *next;
81 };
82 
83 extern struct dtc_file *dtc_open_file(const char *fname,
84                                       const struct search_path *search);
85 extern void dtc_close_file(struct dtc_file *file);
86