* tuiWin.c, tuiWin.h, tui.c, tui.h, tuiCommand.c: Add FSF copyright.
tuiCommand.h, tuiIO.c, tuiIO.h, tuiData.h, tuiData.c: Likewise.
tuiDataWin.c, tuiDataWin.h, tuiDisassem.c, tuiDisassem.h: Likewise.
tuiGeneralWin.c, tuiGeneralWin.h, tuiLayout.c, tuiLayout.h: Likewise.
tuiRegs.c, tuiRegs.h, tuiSource.c, tuiSource.h: Likewise.
tuiSouceWin.c, tuiSourceWin.h, tuiStack.c, tuiStack.h: Likewise.
2001-07-14 21:01:25 +02:00
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/* TUI display source window.
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Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Hewlett-Packard Company.
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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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1999-04-16 03:35:26 +02:00
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#include "defs.h"
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#include <ctype.h>
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#include "symtab.h"
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#include "frame.h"
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#include "breakpoint.h"
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1999-09-22 05:28:34 +02:00
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#include "source.h"
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1999-04-16 03:35:26 +02:00
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#include "tui.h"
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#include "tuiData.h"
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#include "tuiStack.h"
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#include "tuiSourceWin.h"
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#include "tuiSource.h"
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/*****************************************
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** EXTERNAL DATA DECLS **
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******************************************/
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extern int current_source_line;
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extern struct symtab *current_source_symtab;
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/*****************************************
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** STATIC LOCAL FUNCTIONS FORWARD DECLS **
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******************************************/
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2000-05-28 03:12:42 +02:00
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static struct breakpoint *_hasBreak (char *, int);
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1999-04-16 03:35:26 +02:00
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/*****************************************
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** STATIC LOCAL DATA **
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******************************************/
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/*****************************************
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** PUBLIC FUNCTIONS **
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******************************************/
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/*********************************
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** SOURCE/DISASSEM FUNCTIONS **
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*********************************/
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/*
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1999-07-07 22:19:36 +02:00
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** tuiSetSourceContent().
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** Function to display source in the source window.
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*/
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1999-04-16 03:35:26 +02:00
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TuiStatus
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2001-07-14 21:31:09 +02:00
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tuiSetSourceContent (struct symtab *s, int lineNo, int noerror)
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1999-04-16 03:35:26 +02:00
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{
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TuiStatus ret = TUI_FAILURE;
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if (s != (struct symtab *) NULL && s->filename != (char *) NULL)
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{
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register FILE *stream;
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register int i, desc, c, lineWidth, nlines;
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register char *srcLine;
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if ((ret = tuiAllocSourceBuffer (srcWin)) == TUI_SUCCESS)
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{
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lineWidth = srcWin->generic.width - 1;
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/*
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1999-07-07 22:19:36 +02:00
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** Take hilite (window border) into account, when calculating
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** the number of lines
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*/
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1999-04-16 03:35:26 +02:00
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nlines = (lineNo + (srcWin->generic.height - 2)) - lineNo;
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desc = open_source_file (s);
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if (desc < 0)
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{
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if (!noerror)
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{
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char *name = alloca (strlen (s->filename) + 100);
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sprintf (name, "%s:%d", s->filename, lineNo);
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print_sys_errmsg (name, errno);
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}
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ret = TUI_FAILURE;
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}
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else
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{
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if (s->line_charpos == 0)
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find_source_lines (s, desc);
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if (lineNo < 1 || lineNo > s->nlines)
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{
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close (desc);
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printf_unfiltered (
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"Line number %d out of range; %s has %d lines.\n",
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lineNo, s->filename, s->nlines);
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}
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else if (lseek (desc, s->line_charpos[lineNo - 1], 0) < 0)
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{
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close (desc);
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perror_with_name (s->filename);
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}
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else
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{
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register int offset, curLineNo, curLine, curLen, threshold;
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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/*
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1999-07-07 22:19:36 +02:00
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** Determine the threshold for the length of the line
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** and the offset to start the display
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*/
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1999-04-16 03:35:26 +02:00
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offset = srcWin->detail.sourceInfo.horizontalOffset;
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threshold = (lineWidth - 1) + offset;
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stream = fdopen (desc, FOPEN_RT);
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clearerr (stream);
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curLine = 0;
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curLineNo =
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srcWin->detail.sourceInfo.startLineOrAddr.lineNo = lineNo;
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if (offset > 0)
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srcLine = (char *) xmalloc (
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(threshold + 1) * sizeof (char));
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while (curLine < nlines)
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{
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TuiWinElementPtr element = (TuiWinElementPtr)
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srcWin->generic.content[curLine];
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struct breakpoint *bp;
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/* get the first character in the line */
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c = fgetc (stream);
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if (offset == 0)
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srcLine = ((TuiWinElementPtr)
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srcWin->generic.content[
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curLine])->whichElement.source.line;
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/* Init the line with the line number */
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sprintf (srcLine, "%-6d", curLineNo);
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curLen = strlen (srcLine);
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i = curLen -
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((curLen / tuiDefaultTabLen ()) * tuiDefaultTabLen ());
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while (i < tuiDefaultTabLen ())
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{
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srcLine[curLen] = ' ';
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i++;
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curLen++;
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}
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srcLine[curLen] = (char) 0;
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/*
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1999-07-07 22:19:36 +02:00
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** Set whether element is the execution point and
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** whether there is a break point on it.
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*/
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1999-04-16 03:35:26 +02:00
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element->whichElement.source.lineOrAddr.lineNo =
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curLineNo;
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element->whichElement.source.isExecPoint =
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(strcmp (((TuiWinElementPtr)
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locator->content[0])->whichElement.locator.fileName,
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s->filename) == 0
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&& curLineNo == ((TuiWinElementPtr)
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locator->content[0])->whichElement.locator.lineNo);
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bp = _hasBreak (s->filename, curLineNo);
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element->whichElement.source.hasBreak =
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(bp != (struct breakpoint *) NULL &&
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(!element->whichElement.source.isExecPoint ||
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(bp->disposition != del || bp->hit_count <= 0)));
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if (c != EOF)
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{
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i = strlen (srcLine) - 1;
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do
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{
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if ((c != '\n') &&
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(c != '\r') && (++i < threshold))
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{
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if (c < 040 && c != '\t')
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{
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srcLine[i++] = '^';
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srcLine[i] = c + 0100;
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}
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else if (c == 0177)
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{
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srcLine[i++] = '^';
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srcLine[i] = '?';
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}
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else
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{ /*
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1999-07-07 22:19:36 +02:00
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** Store the charcter in the line
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** buffer. If it is a tab, then
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** translate to the correct number of
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** chars so we don't overwrite our
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** buffer.
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*/
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1999-04-16 03:35:26 +02:00
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if (c == '\t')
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{
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int j, maxTabLen = tuiDefaultTabLen ();
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for (j = i - (
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(i / maxTabLen) * maxTabLen);
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((j < maxTabLen) &&
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i < threshold);
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i++, j++)
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srcLine[i] = ' ';
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i--;
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}
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else
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srcLine[i] = c;
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}
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srcLine[i + 1] = 0;
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}
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else
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{ /*
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1999-07-07 22:19:36 +02:00
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** if we have not reached EOL, then eat
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** chars until we do
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*/
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1999-04-16 03:35:26 +02:00
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while (c != EOF && c != '\n' && c != '\r')
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c = fgetc (stream);
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}
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}
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while (c != EOF && c != '\n' && c != '\r' &&
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i < threshold && (c = fgetc (stream)));
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}
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/* Now copy the line taking the offset into account */
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if (strlen (srcLine) > offset)
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strcpy (((TuiWinElementPtr) srcWin->generic.content[
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curLine])->whichElement.source.line,
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&srcLine[offset]);
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else
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((TuiWinElementPtr)
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srcWin->generic.content[
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curLine])->whichElement.source.line[0] = (char) 0;
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curLine++;
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curLineNo++;
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}
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if (offset > 0)
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tuiFree (srcLine);
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fclose (stream);
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srcWin->generic.contentSize = nlines;
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ret = TUI_SUCCESS;
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}
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}
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}
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}
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return ret;
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} /* tuiSetSourceContent */
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/* elz: this function sets the contents of the source window to empty
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except for a line in the middle with a warning message about the
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source not being available. This function is called by
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tuiEraseSourceContents, which in turn is invoked when the source files
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1999-07-07 22:19:36 +02:00
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cannot be accessed */
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1999-04-16 03:35:26 +02:00
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void
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2001-07-14 21:31:09 +02:00
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tuiSetSourceContentNil (TuiWinInfoPtr winInfo, char *warning_string)
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1999-04-16 03:35:26 +02:00
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{
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int lineWidth;
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int nLines;
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int curr_line = 0;
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lineWidth = winInfo->generic.width - 1;
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nLines = winInfo->generic.height - 2;
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/* set to empty each line in the window, except for the one
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1999-07-07 22:19:36 +02:00
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which contains the message */
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1999-04-16 03:35:26 +02:00
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while (curr_line < winInfo->generic.contentSize)
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{
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/* set the information related to each displayed line
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1999-07-07 22:19:36 +02:00
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to null: i.e. the line number is 0, there is no bp,
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it is not where the program is stopped */
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1999-04-16 03:35:26 +02:00
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TuiWinElementPtr element =
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(TuiWinElementPtr) winInfo->generic.content[curr_line];
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element->whichElement.source.lineOrAddr.lineNo = 0;
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element->whichElement.source.isExecPoint = FALSE;
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element->whichElement.source.hasBreak = FALSE;
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1999-07-07 22:19:36 +02:00
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/* set the contents of the line to blank */
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1999-04-16 03:35:26 +02:00
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element->whichElement.source.line[0] = (char) 0;
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/* if the current line is in the middle of the screen, then we want to
|
1999-07-07 22:19:36 +02:00
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display the 'no source available' message in it.
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Note: the 'weird' arithmetic with the line width and height comes from
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the function tuiEraseSourceContent. We need to keep the screen and the
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window's actual contents in synch */
|
1999-04-16 03:35:26 +02:00
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if (curr_line == (nLines / 2 + 1))
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{
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int i;
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int xpos;
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int warning_length = strlen (warning_string);
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char *srcLine;
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srcLine = element->whichElement.source.line;
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if (warning_length >= ((lineWidth - 1) / 2))
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xpos = 1;
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else
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xpos = (lineWidth - 1) / 2 - warning_length;
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for (i = 0; i < xpos; i++)
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srcLine[i] = ' ';
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sprintf (srcLine + i, "%s", warning_string);
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for (i = xpos + warning_length; i < lineWidth; i++)
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srcLine[i] = ' ';
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srcLine[i] = '\n';
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} /* end if */
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curr_line++;
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|
1999-07-07 22:19:36 +02:00
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} /* end while */
|
1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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} /*tuiSetSourceContentNil */
|
1999-04-16 03:35:26 +02:00
|
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/*
|
1999-07-07 22:19:36 +02:00
|
|
|
** tuiShowSource().
|
|
|
|
** Function to display source in the source window. This function
|
|
|
|
** initializes the horizontal scroll to 0.
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
void
|
2001-07-14 21:31:09 +02:00
|
|
|
tuiShowSource (struct symtab *s, Opaque line, int noerror)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
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|
|
|
srcWin->detail.sourceInfo.horizontalOffset = 0;
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|
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m_tuiShowSourceAsIs (s, line, noerror);
|
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return;
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|
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} /* tuiShowSource */
|
|
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|
|
/*
|
1999-07-07 22:19:36 +02:00
|
|
|
** tuiSourceIsDisplayed().
|
|
|
|
** Answer whether the source is currently displayed in the source window.
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
int
|
2001-07-14 21:31:09 +02:00
|
|
|
tuiSourceIsDisplayed (char *fname)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
|
|
|
return (srcWin->generic.contentInUse &&
|
|
|
|
(strcmp (((TuiWinElementPtr) (locatorWinInfoPtr ())->
|
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|
|
content[0])->whichElement.locator.fileName, fname) == 0));
|
|
|
|
} /* tuiSourceIsDisplayed */
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
1999-07-07 22:19:36 +02:00
|
|
|
** tuiVerticalSourceScroll().
|
|
|
|
** Scroll the source forward or backward vertically
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
void
|
2001-07-14 21:31:09 +02:00
|
|
|
tuiVerticalSourceScroll (TuiScrollDirection scrollDirection, int numToScroll)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
|
|
|
if (srcWin->generic.content != (OpaquePtr) NULL)
|
|
|
|
{
|
|
|
|
int line;
|
|
|
|
Opaque addr;
|
|
|
|
struct symtab *s;
|
|
|
|
TuiWinContent content = (TuiWinContent) srcWin->generic.content;
|
|
|
|
|
|
|
|
if (current_source_symtab == (struct symtab *) NULL)
|
|
|
|
s = find_pc_symtab (selected_frame->pc);
|
|
|
|
else
|
|
|
|
s = current_source_symtab;
|
|
|
|
|
|
|
|
if (scrollDirection == FORWARD_SCROLL)
|
|
|
|
{
|
|
|
|
line = content[0]->whichElement.source.lineOrAddr.lineNo +
|
|
|
|
numToScroll;
|
|
|
|
if (line > s->nlines)
|
1999-07-07 22:19:36 +02:00
|
|
|
/*line = s->nlines - winInfo->generic.contentSize + 1; */
|
|
|
|
/*elz: fix for dts 23398 */
|
1999-04-16 03:35:26 +02:00
|
|
|
line = content[0]->whichElement.source.lineOrAddr.lineNo;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
line = content[0]->whichElement.source.lineOrAddr.lineNo -
|
|
|
|
numToScroll;
|
|
|
|
if (line <= 0)
|
|
|
|
line = 1;
|
|
|
|
}
|
|
|
|
tuiUpdateSourceWindowAsIs (srcWin, s, (Opaque) line, FALSE);
|
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
} /* tuiVerticalSourceScroll */
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************************
|
|
|
|
** STATIC LOCAL FUNCTIONS **
|
|
|
|
******************************************/
|
|
|
|
|
|
|
|
/*
|
1999-07-07 22:19:36 +02:00
|
|
|
** _hasBreak().
|
|
|
|
** Answer whether there is a break point at the input line in
|
|
|
|
** the source file indicated
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
|
|
static struct breakpoint *
|
2001-07-14 21:31:09 +02:00
|
|
|
_hasBreak (char *sourceFileName, int lineNo)
|
1999-04-16 03:35:26 +02:00
|
|
|
{
|
|
|
|
struct breakpoint *bpWithBreak = (struct breakpoint *) NULL;
|
|
|
|
struct breakpoint *bp;
|
|
|
|
extern struct breakpoint *breakpoint_chain;
|
|
|
|
|
|
|
|
|
|
|
|
for (bp = breakpoint_chain;
|
|
|
|
(bp != (struct breakpoint *) NULL &&
|
|
|
|
bpWithBreak == (struct breakpoint *) NULL);
|
|
|
|
bp = bp->next)
|
|
|
|
if ((strcmp (sourceFileName, bp->source_file) == 0) &&
|
|
|
|
(lineNo == bp->line_number))
|
|
|
|
bpWithBreak = bp;
|
|
|
|
|
|
|
|
return bpWithBreak;
|
|
|
|
} /* _hasBreak */
|