3a42771a8e
* tuiStack.c (tuiClearLocatorDisplay): Remove. (tuiShowLocatorContent): Use wclrtoeol to clear end of status line. (tuiUpdateLocatorDisplay): Don't call tuiClearLocatorDisplay.
405 lines
11 KiB
C
405 lines
11 KiB
C
/* TUI display locator.
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Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
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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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/* FIXME: cagney/2002-02-28: The GDB coding standard indicates that
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"defs.h" should be included first. Unfortunatly some systems
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(currently Debian GNU/Linux) include the <stdbool.h> via <curses.h>
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and they clash with "bfd.h"'s definiton of true/false. The correct
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fix is to remove true/false from "bfd.h", however, until that
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happens, hack around it by including "config.h" and <curses.h>
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first. */
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#include "config.h"
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#ifdef HAVE_NCURSES_H
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#include <ncurses.h>
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#else
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#ifdef HAVE_CURSES_H
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#include <curses.h>
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#endif
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#endif
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#include "defs.h"
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#include "symtab.h"
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#include "breakpoint.h"
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#include "frame.h"
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#include "command.h"
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#include "top.h"
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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 "tuiGeneralWin.h"
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#include "tuiSource.h"
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#include "tuiSourceWin.h"
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#include "tui-file.h"
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/* Get a printable name for the function at the address.
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The symbol name is demangled if demangling is turned on.
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Returns a pointer to a static area holding the result. */
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static char* tui_get_function_from_frame (struct frame_info *fi);
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static void tui_update_command (char *, int);
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/* Get a printable name for the function at the address.
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The symbol name is demangled if demangling is turned on.
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Returns a pointer to a static area holding the result. */
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static char*
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tui_get_function_from_frame (struct frame_info *fi)
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{
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static char name[256];
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struct ui_file *stream = tui_sfileopen (256);
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char *p;
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print_address_symbolic (fi->pc, stream, demangle, "");
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p = tui_file_get_strbuf (stream);
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/* Use simple heuristics to isolate the function name. The symbol can
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be demangled and we can have function parameters. Remove them because
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the status line is too short to display them. */
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if (*p == '<')
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p++;
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strncpy (name, p, sizeof (name));
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p = strchr (name, '(');
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if (!p)
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p = strchr (name, '>');
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if (p)
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*p = 0;
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p = strchr (name, '+');
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if (p)
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*p = 0;
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ui_file_delete (stream);
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return name;
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}
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/*
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** tuiShowLocatorContent()
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*/
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void
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tuiShowLocatorContent (void)
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{
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char *string;
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TuiGenWinInfoPtr locator;
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locator = locatorWinInfoPtr ();
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if (m_genWinPtrNotNull (locator) && locator->handle != (WINDOW *) NULL)
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{
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string = displayableWinContentAt (locator, 0);
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if (string != (char *) NULL)
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{
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wmove (locator->handle, 0, 0);
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wstandout (locator->handle);
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waddstr (locator->handle, string);
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wclrtoeol (locator->handle);
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wstandend (locator->handle);
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tuiRefreshWin (locator);
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wmove (locator->handle, 0, 0);
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if (string != nullStr ())
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tuiFree (string);
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locator->contentInUse = TRUE;
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}
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}
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return;
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} /* tuiShowLocatorContent */
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/* Update the locator, with the provided arguments. */
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void
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tuiSetLocatorInfo (char *fname, char *procname, int lineNo,
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CORE_ADDR addr, TuiLocatorElementPtr element)
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{
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element->fileName[0] = (char) 0;
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element->procName[0] = (char) 0;
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strcat_to_buf (element->fileName, MAX_LOCATOR_ELEMENT_LEN, fname);
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strcat_to_buf (element->procName, MAX_LOCATOR_ELEMENT_LEN, procname);
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element->lineNo = lineNo;
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element->addr = addr;
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}
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/*
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** tuiUpdateLocatorFilename().
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** Update only the filename portion of the locator.
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*/
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void
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tuiUpdateLocatorFilename (const char *fileName)
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{
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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if (locator->content[0] == (Opaque) NULL)
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tuiSetLocatorContent ((struct frame_info *) NULL);
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((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;
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strcat_to_buf (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName,
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MAX_LOCATOR_ELEMENT_LEN,
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fileName);
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tuiShowLocatorContent ();
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return;
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} /* tuiUpdateLocatorFilename */
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/*
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** tuiSwitchFilename().
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** Update the filename portion of the locator. Clear the other info in locator.
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** (elz)
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*/
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void
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tuiSwitchFilename (char *fileName)
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{
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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if (locator->content[0] == (Opaque) NULL)
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tuiSetLocatorContent ((struct frame_info *) NULL);
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((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;
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tuiSetLocatorInfo (fileName,
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(char *) NULL,
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0,
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(CORE_ADDR) 0,
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&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
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tuiShowLocatorContent ();
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return;
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} /* tuiSwitchFilename */
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/*
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** tuiGetLocatorFilename().
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** Get the filename portion of the locator.
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** (elz)
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*/
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void
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tuiGetLocatorFilename (TuiGenWinInfoPtr locator, char **filename)
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{
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/* the current filename could be non known, in which case the xmalloc would
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allocate no memory, because the length would be 0 */
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if (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName)
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{
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int name_length =
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strlen (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);
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(*filename) = (char *) xmalloc (name_length + 1);
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strcpy ((*filename),
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((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);
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}
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return;
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} /* tuiGetLocatorFilename */
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/*
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** tuiUpdateLocatorInfoFromFrame().
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** Function to update the locator, with the information extracted from frameInfo
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*/
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void
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tuiUpdateLocatorInfoFromFrame (struct frame_info *frameInfo,
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TuiLocatorElementPtr element)
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{
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struct symtab_and_line symtabAndLine;
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/* now get the new info */
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symtabAndLine = find_pc_line (frameInfo->pc,
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(frameInfo->next != (struct frame_info *) NULL &&
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!frameInfo->next->signal_handler_caller &&
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!frame_in_dummy (frameInfo->next)));
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if (symtabAndLine.symtab && symtabAndLine.symtab->filename)
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tuiSetLocatorInfo (symtabAndLine.symtab->filename,
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tui_get_function_from_frame (frameInfo),
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symtabAndLine.line,
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frameInfo->pc,
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element);
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else
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tuiSetLocatorInfo ((char *) NULL,
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tui_get_function_from_frame (frameInfo),
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0,
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frameInfo->pc,
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element);
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return;
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} /* tuiUpdateLocatorInfoFromFrame */
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/*
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** tuiSetLocatorContent().
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** Function to set the content of the locator
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*/
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void
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tuiSetLocatorContent (struct frame_info *frameInfo)
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{
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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TuiWinElementPtr element;
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struct symtab_and_line symtabAndLine;
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/* Allocate the element if necessary */
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if (locator->contentSize <= 0)
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{
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TuiWinContent contentPtr;
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if ((locator->content = (OpaquePtr) allocContent (1, locator->type)) == (OpaquePtr) NULL)
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error ("Unable to Allocate Memory to Display Location.");
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locator->contentSize = 1;
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}
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if (frameInfo != (struct frame_info *) NULL)
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tuiUpdateLocatorInfoFromFrame (frameInfo,
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&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
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else
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tuiSetLocatorInfo ((char *) NULL,
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(char *) NULL,
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0,
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(CORE_ADDR) 0,
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&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
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return;
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} /* tuiSetLocatorContent */
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/*
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** tuiUpdateLocatorDisplay().
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** Function to update the locator display
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*/
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void
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tuiUpdateLocatorDisplay (struct frame_info *frameInfo)
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{
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tuiSetLocatorContent (frameInfo);
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tuiShowLocatorContent ();
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return;
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} /* tuiUpdateLocatorDisplay */
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/*
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** tuiShowFrameInfo().
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** Function to print the frame inforrmation for the TUI.
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*/
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void
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tuiShowFrameInfo (struct frame_info *fi)
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{
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TuiWinInfoPtr winInfo;
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register int i;
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if (fi)
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{
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register int startLine, i;
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register struct symtab *s;
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CORE_ADDR low;
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TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
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int sourceAlreadyDisplayed;
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s = find_pc_symtab (fi->pc);
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if (s == 0)
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return;
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startLine = 0;
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sourceAlreadyDisplayed = tuiSourceIsDisplayed (s->filename);
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tuiUpdateLocatorDisplay (fi);
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for (i = 0; i < (sourceWindows ())->count; i++)
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{
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TuiWhichElement *item;
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winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
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item = &((TuiWinElementPtr) locator->content[0])->whichElement;
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if (winInfo == srcWin)
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{
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startLine = (item->locator.lineNo -
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(winInfo->generic.viewportHeight / 2)) + 1;
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if (startLine <= 0)
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startLine = 1;
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}
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else
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{
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if (find_pc_partial_function (fi->pc, (char **) NULL, &low, (CORE_ADDR) NULL) == 0)
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error ("No function contains program counter for selected frame.\n");
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else
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low = tuiGetLowDisassemblyAddress (low, fi->pc);
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}
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if (winInfo == srcWin)
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{
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TuiLineOrAddress l;
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l.lineNo = startLine;
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if (!(sourceAlreadyDisplayed
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&& tuiLineIsDisplayed (item->locator.lineNo, winInfo, TRUE)))
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tuiUpdateSourceWindow (winInfo, s, l, TRUE);
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else
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{
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l.lineNo = item->locator.lineNo;
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tuiSetIsExecPointAt (l, winInfo);
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}
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}
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else
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{
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if (winInfo == disassemWin)
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{
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TuiLineOrAddress a;
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a.addr = low;
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if (!tuiAddrIsDisplayed (item->locator.addr, winInfo, TRUE))
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tuiUpdateSourceWindow (winInfo, s, a, TRUE);
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else
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{
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a.addr = item->locator.addr;
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tuiSetIsExecPointAt (a, winInfo);
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}
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}
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}
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tuiUpdateExecInfo (winInfo);
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}
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}
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else
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{
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tuiUpdateLocatorDisplay (fi);
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for (i = 0; i < (sourceWindows ())->count; i++)
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{
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winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
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tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT);
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tuiUpdateExecInfo (winInfo);
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}
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}
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return;
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} /* tuiShowFrameInfo */
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/* Function to initialize gdb commands, for tui window stack manipulation. */
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void
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_initialize_tuiStack (void)
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{
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add_com ("update", class_tui, tui_update_command,
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"Update the source window and locator to display the current "
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"execution point.\n");
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}
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/* Command to update the display with the current execution point. */
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static void
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tui_update_command (char *arg, int from_tty)
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{
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char cmd[sizeof("frame 0")];
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strcpy (cmd, "frame 0");
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execute_command (cmd, from_tty);
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}
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