53cb0458d6
function.
(set_default_source_symtab_and_line): New function. Attempts to
determine a source file to list lines from if one is not currently
defined.
(get_current_source_symtab_and_line): Initialize sal.pc and
sal.end fields.
(set_current_source_symtab_and_line): Mark argument as const.
* source.h: Update declarations and comments.
* linespec.c (decode_line_1): Replace call to removed routine above.
* stack.c (print_frame_info_base): Ditto.
* cli/cli-cmds.c (edit_command): Ditto.
(list_command): Ditto.
66 lines
2.9 KiB
C
66 lines
2.9 KiB
C
/* List lines of source files for GDB, the GNU debugger.
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Copyright 1999 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef SOURCE_H
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#define SOURCE_H
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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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/* 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.
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Used by command interpreters to request listing from
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a previous point. */
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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 struct symtab_and_line set_current_source_symtab_and_line (const struct symtab_and_line *);
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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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#endif
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