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