projects/linux·blob v3.7 · refs

118 lines · 3.7 KiB

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
25struct srcfile_state {
26 FILE *f;
27 char *name;
28 char *dir;
29 int lineno, colno;
30 struct srcfile_state *prev;
31};
32
33extern FILE *depfile; /* = NULL */
34extern struct srcfile_state *current_srcfile; /* = NULL */
35
36/**
37 * Open a source file.
38 *
39 * If the source file is a relative pathname, then it is searched for in the
40 * current directory (the directory of the last source file read) and after
41 * that in the search path.
42 *
43 * We work through the search path in order from the first path specified to
44 * the last.
45 *
46 * If the file is not found, then this function does not return, but calls
47 * die().
48 *
49 * @param fname Filename to search
50 * @param fullnamep If non-NULL, it is set to the allocated filename of the
51 * file that was opened. The caller is then responsible
52 * for freeing the pointer.
53 * @return pointer to opened FILE
54 */
55FILE *srcfile_relative_open(const char *fname, char **fullnamep);
56
57void srcfile_push(const char *fname);
58int srcfile_pop(void);
59
60/**
61 * Add a new directory to the search path for input files
62 *
63 * The new path is added at the end of the list.
64 *
65 * @param dirname Directory to add
66 */
67void srcfile_add_search_path(const char *dirname);
68
69struct srcpos {
70 int first_line;
71 int first_column;
72 int last_line;
73 int last_column;
74 struct srcfile_state *file;
75};
76
77#define YYLTYPE struct srcpos
78
79#define YYLLOC_DEFAULT(Current, Rhs, N) \
80 do { \
81 if (N) { \
82 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
83 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
84 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
85 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \
86 (Current).file = YYRHSLOC(Rhs, N).file; \
87 } else { \
88 (Current).first_line = (Current).last_line = \
89 YYRHSLOC(Rhs, 0).last_line; \
90 (Current).first_column = (Current).last_column = \
91 YYRHSLOC(Rhs, 0).last_column; \
92 (Current).file = YYRHSLOC (Rhs, 0).file; \
93 } \
94 } while (0)
95
96
97/*
98 * Fictional source position used for IR nodes that are
99 * created without otherwise knowing a true source position.
100 * For example,constant definitions from the command line.
101 */
102extern struct srcpos srcpos_empty;
103
104extern void srcpos_update(struct srcpos *pos, const char *text, int len);
105extern struct srcpos *srcpos_copy(struct srcpos *pos);
106extern char *srcpos_string(struct srcpos *pos);
107extern void srcpos_dump(struct srcpos *pos);
108
109extern void srcpos_verror(struct srcpos *pos, char const *, va_list va)
110 __attribute__((format(printf, 2, 0)));
111extern void srcpos_error(struct srcpos *pos, char const *, ...)
112 __attribute__((format(printf, 2, 3)));
113extern void srcpos_warn(struct srcpos *pos, char const *, ...)
114 __attribute__((format(printf, 2, 3)));
115
116extern void srcpos_set_line(char *f, int l);
117
118#endif /* _SRCPOS_H_ */