103 lines
4.4 KiB
C
103 lines
4.4 KiB
C
/* List lines of source files for GDB, the GNU debugger.
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Copyright (C) 1999-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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
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GNU General Public License for more details.
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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, see <http://www.gnu.org/licenses/>. */
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#ifndef SOURCE_H
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#define SOURCE_H
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struct symtab;
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/* This function is capable of finding the absolute path to a
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source file, and opening it, provided you give it a FILENAME. Both the
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DIRNAME and FULLNAME are only added suggestions on where to find the file.
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FILENAME should be the filename to open.
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DIRNAME is the compilation directory of a particular source file.
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Only some debug formats provide this info.
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FULLNAME can be the last known absolute path to the file in question.
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Space for the path must have been malloc'd. If a path substitution
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is applied we free the old value and set a new one.
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On Success
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A valid file descriptor is returned (the return value is positive).
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FULLNAME is set to the absolute path to the file just opened.
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The caller is responsible for freeing FULLNAME.
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On Failure
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An invalid file descriptor is returned (the return value is negative).
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FULLNAME is set to NULL. */
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extern int find_and_open_source (const char *filename,
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const char *dirname,
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char **fullname);
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/* Open a source file given a symtab S. Returns a file descriptor or
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negative number for error. */
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extern int open_source_file (struct symtab *s);
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extern gdb::unique_xmalloc_ptr<char> rewrite_source_path (const char *path);
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extern const char *symtab_to_fullname (struct symtab *s);
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/* Returns filename without the compile directory part, basename or absolute
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filename. It depends on 'set filename-display' value. */
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extern const char *symtab_to_filename_for_display (struct symtab *symtab);
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/* Create and initialize the table S->line_charpos that records the
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positions of the lines in the source file, which is assumed to be
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open on descriptor DESC. All set S->nlines to the number of such
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lines. */
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extern void find_source_lines (struct symtab *s, int desc);
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/* Return the first line listed by print_source_lines. Used by
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command interpreters to request listing from a previous point. If
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0, then no source lines have yet been listed since the last time
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the current source line was changed. */
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extern int get_first_line_listed (void);
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/* Return the default number of lines to print with commands like the
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cli "list". The caller of print_source_lines must use this to
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calculate the end line and use it in the call to print_source_lines
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as it does not automatically use this value. */
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extern int get_lines_to_list (void);
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/* Return the current source file for listing and next line to list.
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NOTE: The returned sal pc and end fields are not valid. */
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extern struct symtab_and_line get_current_source_symtab_and_line (void);
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/* If the current source file for listing is not set, try and get a default.
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Usually called before get_current_source_symtab_and_line() is called.
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It may err out if a default cannot be determined.
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We must be cautious about where it is called, as it can recurse as the
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process of determining a new default may call the caller!
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Use get_current_source_symtab_and_line only to get whatever
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we have without erroring out or trying to get a default. */
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extern void set_default_source_symtab_and_line (void);
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/* Return the current default file for listing and next line to list
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(the returned sal pc and end fields are not valid.)
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and set the current default to whatever is in SAL.
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NOTE: The returned sal pc and end fields are not valid. */
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extern symtab_and_line set_current_source_symtab_and_line
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(const symtab_and_line &sal);
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/* Reset any information stored about a default file and line to print. */
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extern void clear_current_source_symtab_and_line (void);
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/* Add a source path substitution rule. */
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extern void add_substitute_path_rule (char *, char *);
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#endif
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