7c635dcb2f
Error reporting in push_input_file() is a mess. One error results in a message and exit(1), others result in a message and return 0 - which is turned into an exit(1) at one callsite. The other callsite doesn't check errors, but probably should. One of the error conditions gives a message, but can only be the result of an internal programming error, not a user error. So. Clean that up by making push_input_file() a void function, using die() to report errors and quit. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
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* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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/*
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* Augment the standard YYLTYPE with a filenum index into an
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* array of all opened filenames.
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*/
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#include <stdio.h>
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struct dtc_file {
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char *dir;
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const char *name;
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FILE *file;
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};
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#if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
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typedef struct YYLTYPE {
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int first_line;
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int first_column;
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int last_line;
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int last_column;
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struct dtc_file *file;
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} YYLTYPE;
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#define YYLTYPE_IS_DECLARED 1
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#define YYLTYPE_IS_TRIVIAL 1
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#endif
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/* Cater to old parser templates. */
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#ifndef YYID
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#define YYID(n) (n)
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#endif
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#define YYLLOC_DEFAULT(Current, Rhs, N) \
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do \
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if (YYID (N)) \
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{ \
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(Current).first_line = YYRHSLOC (Rhs, 1).first_line; \
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(Current).first_column = YYRHSLOC (Rhs, 1).first_column; \
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(Current).last_line = YYRHSLOC (Rhs, N).last_line; \
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(Current).last_column = YYRHSLOC (Rhs, N).last_column; \
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(Current).file = YYRHSLOC (Rhs, N).file; \
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} \
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else \
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{ \
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(Current).first_line = (Current).last_line = \
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YYRHSLOC (Rhs, 0).last_line; \
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(Current).first_column = (Current).last_column = \
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YYRHSLOC (Rhs, 0).last_column; \
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(Current).file = YYRHSLOC (Rhs, 0).file; \
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} \
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while (YYID (0))
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extern void yyerror(char const *);
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extern void yyerrorf(char const *, ...) __attribute__((format(printf, 1, 2)));
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extern struct dtc_file *srcpos_file;
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extern void push_input_file(const char *filename);
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extern int pop_input_file(void);
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struct search_path {
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const char *dir; /* NULL for current directory */
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struct search_path *prev, *next;
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};
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extern struct dtc_file *dtc_open_file(const char *fname,
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const struct search_path *search);
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extern void dtc_close_file(struct dtc_file *file);
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