scripts/dtc/srcpos.h

   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 struct srcfile_state *current_srcfile; /* = NULL */
  34
  35 FILE *srcfile_relative_open(const char *fname, char **fullnamep);
  36 void srcfile_push(const char *fname);
  37 int srcfile_pop(void);
  38
  39 struct srcpos {
  40     int first_line;
  41     int first_column;
  42     int last_line;
  43     int last_column;
  44     struct srcfile_state *file;
  45 };
  46
  47 #define YYLTYPE struct srcpos
  48
  49 #define YYLLOC_DEFAULT(Current, Rhs, N)                                         \
  50         do {                                                                    \
  51                 if (N) {                                                        \
  52                         (Current).first_line = YYRHSLOC(Rhs, 1).first_line;     \
  53                         (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
  54                         (Current).last_line = YYRHSLOC(Rhs, N).last_line;       \
  55                         (Current).last_column  = YYRHSLOC (Rhs, N).last_column; \
  56                         (Current).file = YYRHSLOC(Rhs, N).file;                 \
  57                 } else {                                                        \
  58                         (Current).first_line = (Current).last_line =            \
  59                                 YYRHSLOC(Rhs, 0).last_line;                     \
  60                         (Current).first_column = (Current).last_column =        \
  61                                 YYRHSLOC(Rhs, 0).last_column;                   \
  62                         (Current).file = YYRHSLOC (Rhs, 0).file;                \
  63                 }                                                               \
  64         } while (0)
  65
  66
  67 /*
  68  * Fictional source position used for IR nodes that are
  69  * created without otherwise knowing a true source position.
  70  * For example,constant definitions from the command line.
  71  */
  72 extern struct srcpos srcpos_empty;
  73
  74 extern void srcpos_update(struct srcpos *pos, const char *text, int len);
  75 extern struct srcpos *srcpos_copy(struct srcpos *pos);
  76 extern char *srcpos_string(struct srcpos *pos);
  77 extern void srcpos_dump(struct srcpos *pos);
  78
  79 extern void srcpos_verror(struct srcpos *pos, char const *, va_list va)
  80      __attribute__((format(printf, 2, 0)));
  81 extern void srcpos_error(struct srcpos *pos, char const *, ...)
  82      __attribute__((format(printf, 2, 3)));
  83 extern void srcpos_warn(struct srcpos *pos, char const *, ...)
  84      __attribute__((format(printf, 2, 3)));
  85
  86 #endif /* _SRCPOS_H_ */