1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc. |
4 | */ |
5 | |
6 | #ifndef SRCPOS_H |
7 | #define SRCPOS_H |
8 | |
9 | #include <stdio.h> |
10 | #include <stdbool.h> |
11 | #include "util.h" |
12 | |
13 | struct srcfile_state { |
14 | FILE *f; |
15 | char *name; |
16 | char *dir; |
17 | int lineno, colno; |
18 | struct srcfile_state *prev; |
19 | }; |
20 | |
21 | extern FILE *depfile; /* = NULL */ |
22 | extern struct srcfile_state *current_srcfile; /* = NULL */ |
23 | |
24 | /** |
25 | * Open a source file. |
26 | * |
27 | * If the source file is a relative pathname, then it is searched for in the |
28 | * current directory (the directory of the last source file read) and after |
29 | * that in the search path. |
30 | * |
31 | * We work through the search path in order from the first path specified to |
32 | * the last. |
33 | * |
34 | * If the file is not found, then this function does not return, but calls |
35 | * die(). |
36 | * |
37 | * @param fname Filename to search |
38 | * @param fullnamep If non-NULL, it is set to the allocated filename of the |
39 | * file that was opened. The caller is then responsible |
40 | * for freeing the pointer. |
41 | * @return pointer to opened FILE |
42 | */ |
43 | FILE *srcfile_relative_open(const char *fname, char **fullnamep); |
44 | |
45 | void srcfile_push(const char *fname); |
46 | bool srcfile_pop(void); |
47 | |
48 | /** |
49 | * Add a new directory to the search path for input files |
50 | * |
51 | * The new path is added at the end of the list. |
52 | * |
53 | * @param dirname Directory to add |
54 | */ |
55 | void srcfile_add_search_path(const char *dirname); |
56 | |
57 | struct srcpos { |
58 | int first_line; |
59 | int first_column; |
60 | int last_line; |
61 | int last_column; |
62 | struct srcfile_state *file; |
63 | struct srcpos *next; |
64 | }; |
65 | |
66 | #define YYLTYPE struct srcpos |
67 | |
68 | #define YYLLOC_DEFAULT(Current, Rhs, N) \ |
69 | do { \ |
70 | if (N) { \ |
71 | (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ |
72 | (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ |
73 | (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ |
74 | (Current).last_column = YYRHSLOC (Rhs, N).last_column; \ |
75 | (Current).file = YYRHSLOC(Rhs, N).file; \ |
76 | } else { \ |
77 | (Current).first_line = (Current).last_line = \ |
78 | YYRHSLOC(Rhs, 0).last_line; \ |
79 | (Current).first_column = (Current).last_column = \ |
80 | YYRHSLOC(Rhs, 0).last_column; \ |
81 | (Current).file = YYRHSLOC (Rhs, 0).file; \ |
82 | } \ |
83 | (Current).next = NULL; \ |
84 | } while (0) |
85 | |
86 | |
87 | extern void srcpos_update(struct srcpos *pos, const char *text, int len); |
88 | extern struct srcpos *srcpos_copy(struct srcpos *pos); |
89 | extern struct srcpos *srcpos_extend(struct srcpos *new_srcpos, |
90 | struct srcpos *old_srcpos); |
91 | extern char *srcpos_string(struct srcpos *pos); |
92 | extern char *srcpos_string_first(struct srcpos *pos, int level); |
93 | extern char *srcpos_string_last(struct srcpos *pos, int level); |
94 | |
95 | |
96 | extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix, |
97 | const char *fmt, va_list va); |
98 | extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix, |
99 | const char *fmt, ...); |
100 | |
101 | extern void srcpos_set_line(char *f, int l); |
102 | |
103 | #endif /* SRCPOS_H */ |
104 | |