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 26 struct srcfile_state { 27 FILE *f; 28 char *name; 29 char *dir; 30 int lineno, colno; 31 struct srcfile_state *prev; 32 }; 33 34 extern FILE *depfile; /* = NULL */ 35 extern struct srcfile_state *current_srcfile; /* = NULL */ 36 37 /** 38 * Open a source file. 39 * 40 * If the source file is a relative pathname, then it is searched for in the 41 * current directory (the directory of the last source file read) and after 42 * that in the search path. 43 * 44 * We work through the search path in order from the first path specified to 45 * the last. 46 * 47 * If the file is not found, then this function does not return, but calls 48 * die(). 49 * 50 * @param fname Filename to search 51 * @param fullnamep If non-NULL, it is set to the allocated filename of the 52 * file that was opened. The caller is then responsible 53 * for freeing the pointer. 54 * @return pointer to opened FILE 55 */ 56 FILE *srcfile_relative_open(const char *fname, char **fullnamep); 57 58 void srcfile_push(const char *fname); 59 bool srcfile_pop(void); 60 61 /** 62 * Add a new directory to the search path for input files 63 * 64 * The new path is added at the end of the list. 65 * 66 * @param dirname Directory to add 67 */ 68 void srcfile_add_search_path(const char *dirname); 69 70 struct srcpos { 71 int first_line; 72 int first_column; 73 int last_line; 74 int last_column; 75 struct srcfile_state *file; 76 }; 77 78 #define YYLTYPE struct srcpos 79 80 #define YYLLOC_DEFAULT(Current, Rhs, N) \ 81 do { \ 82 if (N) { \ 83 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ 84 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ 85 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ 86 (Current).last_column = YYRHSLOC (Rhs, N).last_column; \ 87 (Current).file = YYRHSLOC(Rhs, N).file; \ 88 } else { \ 89 (Current).first_line = (Current).last_line = \ 90 YYRHSLOC(Rhs, 0).last_line; \ 91 (Current).first_column = (Current).last_column = \ 92 YYRHSLOC(Rhs, 0).last_column; \ 93 (Current).file = YYRHSLOC (Rhs, 0).file; \ 94 } \ 95 } while (0) 96 97 98 /* 99 * Fictional source position used for IR nodes that are 100 * created without otherwise knowing a true source position. 101 * For example,constant definitions from the command line. 102 */ 103 extern struct srcpos srcpos_empty; 104 105 extern void srcpos_update(struct srcpos *pos, const char *text, int len); 106 extern struct srcpos *srcpos_copy(struct srcpos *pos); 107 extern char *srcpos_string(struct srcpos *pos); 108 extern void srcpos_dump(struct srcpos *pos); 109 110 extern void srcpos_verror(struct srcpos *pos, const char *prefix, 111 const char *fmt, va_list va) 112 __attribute__((format(printf, 3, 0))); 113 extern void srcpos_error(struct srcpos *pos, const char *prefix, 114 const char *fmt, ...) 115 __attribute__((format(printf, 3, 4))); 116 117 extern void srcpos_set_line(char *f, int l); 118 119 #endif /* _SRCPOS_H_ */ 120