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#ifndef SRCPOS_H
21#define SRCPOS_H
22
23#include <stdio.h>
24#include <stdbool.h>
25#include "util.h"
26
27struct srcfile_state {
28 FILE *f;
29 char *name;
30 char *dir;
31 int lineno, colno;
32 struct srcfile_state *prev;
33};
34
35extern FILE *depfile; /* = NULL */
36extern struct srcfile_state *current_srcfile; /* = NULL */
37
38/**
39 * Open a source file.
40 *
41 * If the source file is a relative pathname, then it is searched for in the
42 * current directory (the directory of the last source file read) and after
43 * that in the search path.
44 *
45 * We work through the search path in order from the first path specified to
46 * the last.
47 *
48 * If the file is not found, then this function does not return, but calls
49 * die().
50 *
51 * @param fname Filename to search
52 * @param fullnamep If non-NULL, it is set to the allocated filename of the
53 * file that was opened. The caller is then responsible
54 * for freeing the pointer.
55 * @return pointer to opened FILE
56 */
57FILE *srcfile_relative_open(const char *fname, char **fullnamep);
58
59void srcfile_push(const char *fname);
60bool srcfile_pop(void);
61
62/**
63 * Add a new directory to the search path for input files
64 *
65 * The new path is added at the end of the list.
66 *
67 * @param dirname Directory to add
68 */
69void srcfile_add_search_path(const char *dirname);
70
71struct srcpos {
72 int first_line;
73 int first_column;
74 int last_line;
75 int last_column;
76 struct srcfile_state *file;
77 struct srcpos *next;
78};
79
80#define YYLTYPE struct srcpos
81
82#define YYLLOC_DEFAULT(Current, Rhs, N) \
83 do { \
84 if (N) { \
85 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
86 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
87 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
88 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
89 (Current).file = YYRHSLOC(Rhs, N).file; \
90 } else { \
91 (Current).first_line = (Current).last_line = \
92 YYRHSLOC(Rhs, 0).last_line; \
93 (Current).first_column = (Current).last_column = \
94 YYRHSLOC(Rhs, 0).last_column; \
95 (Current).file = YYRHSLOC (Rhs, 0).file; \
96 } \
97 (Current).next = NULL; \
98 } while (0)
99
100
101extern void srcpos_update(struct srcpos *pos, const char *text, int len);
102extern struct srcpos *srcpos_copy(struct srcpos *pos);
103extern struct srcpos *srcpos_extend(struct srcpos *new_srcpos,
104 struct srcpos *old_srcpos);
105extern char *srcpos_string(struct srcpos *pos);
106extern char *srcpos_string_first(struct srcpos *pos, int level);
107extern char *srcpos_string_last(struct srcpos *pos, int level);
108
109
110extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix,
111 const char *fmt, va_list va);
112extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix,
113 const char *fmt, ...);
114
115extern void srcpos_set_line(char *f, int l);
116
117#endif /* SRCPOS_H */
118