LXR linux/scripts/dtc/srcpos.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
   4 */
   5
   6#ifndef SRCPOS_H
   7#define SRCPOS_H
   8
   9#include <stdio.h>
  10#include <stdbool.h>
  11#include "util.h"
  12
  13struct srcfile_state {
  14        FILE *f;
  15        char *name;
  16        char *dir;
  17        int lineno, colno;
  18        struct srcfile_state *prev;
  19};
  20
  21extern FILE *depfile; /* = NULL */
  22extern struct srcfile_state *current_srcfile; /* = NULL */
  23
  24/**
  25 * Open a source file.
  26 *
  27 * If the source file is a relative pathname, then it is searched for in the
  28 * current directory (the directory of the last source file read) and after
  29 * that in the search path.
  30 *
  31 * We work through the search path in order from the first path specified to
  32 * the last.
  33 *
  34 * If the file is not found, then this function does not return, but calls
  35 * die().
  36 *
  37 * @param fname         Filename to search
  38 * @param fullnamep     If non-NULL, it is set to the allocated filename of the
  39 *                      file that was opened. The caller is then responsible
  40 *                      for freeing the pointer.
  41 * @return pointer to opened FILE
  42 */
  43FILE *srcfile_relative_open(const char *fname, char **fullnamep);
  44
  45void srcfile_push(const char *fname);
  46bool srcfile_pop(void);
  47
  48/**
  49 * Add a new directory to the search path for input files
  50 *
  51 * The new path is added at the end of the list.
  52 *
  53 * @param dirname       Directory to add
  54 */
  55void srcfile_add_search_path(const char *dirname);
  56
  57struct srcpos {
  58    int first_line;
  59    int first_column;
  60    int last_line;
  61    int last_column;
  62    struct srcfile_state *file;
  63    struct srcpos *next;
  64};
  65
  66#define YYLTYPE struct srcpos
  67
  68#define YYLLOC_DEFAULT(Current, Rhs, N)                                         \
  69        do {                                                                    \
  70                if (N) {                                                        \
  71                        (Current).first_line = YYRHSLOC(Rhs, 1).first_line;     \
  72                        (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
  73                        (Current).last_line = YYRHSLOC(Rhs, N).last_line;       \
  74                        (Current).last_column  = YYRHSLOC (Rhs, N).last_column; \
  75                        (Current).file = YYRHSLOC(Rhs, N).file;                 \
  76                } else {                                                        \
  77                        (Current).first_line = (Current).last_line =            \
  78                                YYRHSLOC(Rhs, 0).last_line;                     \
  79                        (Current).first_column = (Current).last_column =        \
  80                                YYRHSLOC(Rhs, 0).last_column;                   \
  81                        (Current).file = YYRHSLOC (Rhs, 0).file;                \
  82                }                                                               \
  83                (Current).next = NULL;                                          \
  84        } while (0)
  85
  86
  87extern void srcpos_update(struct srcpos *pos, const char *text, int len);
  88extern struct srcpos *srcpos_copy(struct srcpos *pos);
  89extern struct srcpos *srcpos_extend(struct srcpos *new_srcpos,
  90                                    struct srcpos *old_srcpos);
  91extern char *srcpos_string(struct srcpos *pos);
  92extern char *srcpos_string_first(struct srcpos *pos, int level);
  93extern char *srcpos_string_last(struct srcpos *pos, int level);
  94
  95
  96extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix,
  97                                        const char *fmt, va_list va);
  98extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix,
  99                                      const char *fmt, ...);
 100
 101extern void srcpos_set_line(char *f, int l);
 102
 103#endif /* SRCPOS_H */
 104