/* * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * *  This program is distributed in the hope that it will be useful, *  but WITHOUT ANY WARRANTY; without even the implied warranty of *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU *  General Public License for more details. * *  You should have received a copy of the GNU General Public License *  along with this program; if not, write to the Free Software *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 *                                                                   USA */ #ifndef _SRCPOS_H_#define _SRCPOS_H_ #include <stdio.h>#include <stdbool.h>#include "util.h" struct srcfile_state {	FILE *f;	char *name;	char *dir;	int lineno, colno;	struct srcfile_state *prev;}; extern FILE *depfile; /* = NULL */extern struct srcfile_state *current_srcfile; /* = NULL */ /** * Open a source file. * * If the source file is a relative pathname, then it is searched for in the * current directory (the directory of the last source file read) and after * that in the search path. * * We work through the search path in order from the first path specified to * the last. * * If the file is not found, then this function does not return, but calls * die(). * * @param fname		Filename to search * @param fullnamep	If non-NULL, it is set to the allocated filename of the *			file that was opened. The caller is then responsible *			for freeing the pointer. * @return pointer to opened FILE */FILE *srcfile_relative_open(const char *fname, char **fullnamep); void srcfile_push(const char *fname);bool srcfile_pop(void); /** * Add a new directory to the search path for input files * * The new path is added at the end of the list. * * @param dirname	Directory to add */void srcfile_add_search_path(const char *dirname); struct srcpos {    int first_line;    int first_column;    int last_line;    int last_column;    struct srcfile_state *file;}; #define YYLTYPE struct srcpos #define YYLLOC_DEFAULT(Current, Rhs, N)						\	do {									\		if (N) {							\			(Current).first_line = YYRHSLOC(Rhs, 1).first_line;	\			(Current).first_column = YYRHSLOC(Rhs, 1).first_column;	\			(Current).last_line = YYRHSLOC(Rhs, N).last_line;	\			(Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\			(Current).file = YYRHSLOC(Rhs, N).file;			\		} else {							\			(Current).first_line = (Current).last_line =		\				YYRHSLOC(Rhs, 0).last_line;			\			(Current).first_column = (Current).last_column =	\				YYRHSLOC(Rhs, 0).last_column;			\			(Current).file = YYRHSLOC (Rhs, 0).file;		\		}								\	} while (0)  /* * Fictional source position used for IR nodes that are * created without otherwise knowing a true source position. * For example,constant definitions from the command line. */extern struct srcpos srcpos_empty; extern void srcpos_update(struct srcpos *pos, const char *text, int len);extern struct srcpos *srcpos_copy(struct srcpos *pos);extern char *srcpos_string(struct srcpos *pos); extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix,					const char *fmt, va_list va);extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix,				      const char *fmt, ...); extern void srcpos_set_line(char *f, int l); #endif /* _SRCPOS_H_ */