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 25 struct srcfile_state { 26 FILE *f; 27 char *name; 28 char *dir; 29 int lineno, colno; 30 struct srcfile_state *prev; 31 }; 32 33 extern FILE *depfile; /* = NULL */ 34 extern 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 */ 55 FILE *srcfile_relative_open(const char *fname, char **fullnamep); 56 57 void srcfile_push(const char *fname); 58 int 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 */ 67 void srcfile_add_search_path(const char *dirname); 68 69 struct 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 */ 102 extern struct srcpos srcpos_empty; 103 104 extern void srcpos_update(struct srcpos *pos, const char *text, int len); 105 extern struct srcpos *srcpos_copy(struct srcpos *pos); 106 extern char *srcpos_string(struct srcpos *pos); 107 extern void srcpos_dump(struct srcpos *pos); 108 109 extern void srcpos_verror(struct srcpos *pos, char const *, va_list va) 110 __attribute__((format(printf, 2, 0))); 111 extern void srcpos_error(struct srcpos *pos, char const *, ...) 112 __attribute__((format(printf, 2, 3))); 113 extern void srcpos_warn(struct srcpos *pos, char const *, ...) 114 __attribute__((format(printf, 2, 3))); 115 116 extern void srcpos_set_line(char *f, int l); 117 118 #endif /* _SRCPOS_H_ */ 119