[deliverable/binutils-gdb.git] / gdb / tui / tuiStack.c

/* TUI display locator.
   Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   Contributed by Hewlett-Packard Company.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include "defs.h"
#include "symtab.h"
#include "breakpoint.h"
#include "frame.h"

#include "tui.h"
#include "tuiData.h"
#include "tuiStack.h"
#include "tuiSourceWin.h"


/*****************************************
** STATIC LOCAL FUNCTIONS FORWARD DECLS    **
******************************************/

static char *_getFuncNameFromFrame (struct frame_info *);
static void _tuiUpdateLocation_command (char *, int);


/*****************************************
** PUBLIC FUNCTION                        **
******************************************/

/*
   ** tuiClearLocatorDisplay()
 */
void
tuiClearLocatorDisplay (void)
{
  TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
  int i;

  if (locator->handle != (WINDOW *) NULL)
    {
      /* No need to werase, since writing a line of
         * blanks which we do below, is equivalent.
       */
      /* werase(locator->handle); */
      wmove (locator->handle, 0, 0);
      wstandout (locator->handle);
      for (i = 0; i < locator->width; i++)
	waddch (locator->handle, ' ');
      wstandend (locator->handle);
      tuiRefreshWin (locator);
      wmove (locator->handle, 0, 0);
      locator->contentInUse = FALSE;
    }

  return;
}				/* tuiClearLocatorDisplay */


/*
   ** tuiShowLocatorContent()
 */
void
tuiShowLocatorContent (void)
{
  char *string;
  TuiGenWinInfoPtr locator;

  locator = locatorWinInfoPtr ();

  if (m_genWinPtrNotNull (locator) && locator->handle != (WINDOW *) NULL)
    {
      string = displayableWinContentAt (locator, 0);
      if (string != (char *) NULL)
	{
	  wmove (locator->handle, 0, 0);
	  wstandout (locator->handle);
	  waddstr (locator->handle, string);
	  wstandend (locator->handle);
	  tuiRefreshWin (locator);
	  wmove (locator->handle, 0, 0);
	  if (string != nullStr ())
	    tuiFree (string);
	  locator->contentInUse = TRUE;
	}
    }

  return;
}				/* tuiShowLocatorContent */


/*
   ** tuiSetLocatorInfo().
   **        Function to update the locator, with the provided arguments.
 */
void
tuiSetLocatorInfo (char *fname, char *procname, int lineNo,
                   Opaque addr, TuiLocatorElementPtr element)
{
#ifdef COMMENT
  /* first free the old info */
  if (element->fileName)
    tuiFree (element->fileName);
  if (element->procName)
    tuiFree (element->procName);

  if (fname == (char *) NULL)
    element->fileName = fname;
  else
    element->fileName = tuiStrDup (fname);
  if (procname == (char *) NULL)
    element->procName = procname;
  else
    element->procName = tuiStrDup (procname);
#else
  element->fileName[0] = (char) 0;
  element->procName[0] = (char) 0;
  strcat_to_buf (element->fileName, MAX_LOCATOR_ELEMENT_LEN, fname);
  strcat_to_buf (element->procName, MAX_LOCATOR_ELEMENT_LEN, procname);
#endif
  element->lineNo = lineNo;
  element->addr = (Opaque) addr;

  return;
}				/* tuiSetLocatorInfo */


/*
   ** tuiUpdateLocatorFilename().
   **        Update only the filename portion of the locator.
 */
void
tuiUpdateLocatorFilename (char *fileName)
{
  TuiGenWinInfoPtr locator = locatorWinInfoPtr ();

  if (locator->content[0] == (Opaque) NULL)
    tuiSetLocatorContent ((struct frame_info *) NULL);
  ((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;
  strcat_to_buf (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName,
		 MAX_LOCATOR_ELEMENT_LEN,
		 fileName);

  tuiShowLocatorContent ();

  return;
}				/* tuiUpdateLocatorFilename */


/*
   ** tui_vUpdateLocatorFilename().
   **        Update only the filename portion of the locator with args in a va_list.
 */
void
tui_vUpdateLocatorFilename (va_list args)
{
  char *fileName;

  fileName = va_arg (args, char *);
  tuiUpdateLocatorFilename (fileName);

  return;
}				/* tui_vUpdateLocatorFilename */


/*
   ** tuiSwitchFilename().
   **   Update the filename portion of the locator. Clear the other info in locator.
   ** (elz)
 */
void
tuiSwitchFilename (char *fileName)
{
  TuiGenWinInfoPtr locator = locatorWinInfoPtr ();

  if (locator->content[0] == (Opaque) NULL)
    tuiSetLocatorContent ((struct frame_info *) NULL);
  ((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;

  tuiSetLocatorInfo (fileName,
		     (char *) NULL,
		     0,
		     (Opaque) NULL,
	   &((TuiWinElementPtr) locator->content[0])->whichElement.locator);

  tuiShowLocatorContent ();

  return;
}				/* tuiSwitchFilename */


/*
   ** tuiGetLocatorFilename().
   **   Get the filename portion of the locator.
   ** (elz)
 */
void
tuiGetLocatorFilename (TuiGenWinInfoPtr locator, char **filename)
{

  /* the current filename could be non known, in which case the xmalloc would
     allocate no memory, because the length would be 0 */
  if (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName)
    {
      int name_length =
      strlen (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);

      (*filename) = (char *) xmalloc (name_length + 1);
      strcpy ((*filename),
	      ((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);
    }

  return;
}				/* tuiGetLocatorFilename */


/*
   ** tuiUpdateLocatorInfoFromFrame().
   **        Function to update the locator, with the information extracted from frameInfo
 */
void
tuiUpdateLocatorInfoFromFrame (struct frame_info *frameInfo,
                               TuiLocatorElementPtr element)
{
  struct symtab_and_line symtabAndLine;

  /* now get the new info */
  symtabAndLine = find_pc_line (frameInfo->pc,
			   (frameInfo->next != (struct frame_info *) NULL &&
			    !frameInfo->next->signal_handler_caller &&
			    !frame_in_dummy (frameInfo->next)));
  if (symtabAndLine.symtab && symtabAndLine.symtab->filename)
    tuiSetLocatorInfo (symtabAndLine.symtab->filename,
		       _getFuncNameFromFrame (frameInfo),
		       symtabAndLine.line,
		       (Opaque) frameInfo->pc,
		       element);
  else
    tuiSetLocatorInfo ((char *) NULL,
		       _getFuncNameFromFrame (frameInfo),
		       0,
		       (Opaque) frameInfo->pc,
		       element);

  return;
}				/* tuiUpdateLocatorInfoFromFrame */


/*
   ** tuiSetLocatorContent().
   **        Function to set the content of the locator
 */
void
tuiSetLocatorContent (struct frame_info *frameInfo)
{
  TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
  TuiWinElementPtr element;
  struct symtab_and_line symtabAndLine;

  /* Allocate the element if necessary */
  if (locator->contentSize <= 0)
    {
      TuiWinContent contentPtr;

      if ((locator->content = (OpaquePtr) allocContent (1, locator->type)) == (OpaquePtr) NULL)
	error ("Unable to Allocate Memory to Display Location.");
      locator->contentSize = 1;
    }

  if (frameInfo != (struct frame_info *) NULL)
    tuiUpdateLocatorInfoFromFrame (frameInfo,
	   &((TuiWinElementPtr) locator->content[0])->whichElement.locator);
  else
    tuiSetLocatorInfo ((char *) NULL,
		       (char *) NULL,
		       0,
		       (Opaque) NULL,
	   &((TuiWinElementPtr) locator->content[0])->whichElement.locator);
  return;
}				/* tuiSetLocatorContent */


/*
   ** tuiUpdateLocatorDisplay().
   **        Function to update the locator display
 */
void
tuiUpdateLocatorDisplay (struct frame_info *frameInfo)
{
  tuiClearLocatorDisplay ();
  tuiSetLocatorContent (frameInfo);
  tuiShowLocatorContent ();

  return;
}				/* tuiUpdateLocatorDisplay */


/*
   ** tuiShowFrameInfo().
   **        Function to print the frame inforrmation for the TUI.
 */
void
tuiShowFrameInfo (struct frame_info *fi)
{
  TuiWinInfoPtr winInfo;
  register int i;

  if (fi)
    {
      register int startLine, i;
      register struct symtab *s;
      CORE_ADDR low;
      TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
      int sourceAlreadyDisplayed;


      s = find_pc_symtab (fi->pc);
      sourceAlreadyDisplayed = tuiSourceIsDisplayed (s->filename);
      tuiUpdateLocatorDisplay (fi);
      for (i = 0; i < (sourceWindows ())->count; i++)
	{
	  winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
	  if (winInfo == srcWin)
	    {
	      startLine =
		(((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo -
		 (winInfo->generic.viewportHeight / 2)) + 1;
	      if (startLine <= 0)
		startLine = 1;
	    }
	  else
	    {
	      if (find_pc_partial_function (fi->pc, (char **) NULL, &low, (CORE_ADDR) NULL) == 0)
		error ("No function contains program counter for selected frame.\n");
	      else
		low = (CORE_ADDR) tuiGetLowDisassemblyAddress ((Opaque) low, (Opaque) fi->pc);
	    }

	  if (winInfo == srcWin)
	    {
	      if (!(sourceAlreadyDisplayed && m_tuiLineDisplayedWithinThreshold (
								    winInfo,
										  ((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo)))
		tuiUpdateSourceWindow (winInfo, s, (Opaque) startLine, TRUE);
	      else
		tuiSetIsExecPointAt ((Opaque)
				     ((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo,
				     winInfo);
	    }
	  else
	    {
	      if (winInfo == disassemWin)
		{
		  if (!m_tuiLineDisplayedWithinThreshold (winInfo,
							  ((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr))
		    tuiUpdateSourceWindow (winInfo, s, (Opaque) low, TRUE);
		  else
		    tuiSetIsExecPointAt ((Opaque)
					 ((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr,
					 winInfo);
		}
	    }
	  tuiUpdateExecInfo (winInfo);
	}
    }
  else
    {
      tuiUpdateLocatorDisplay (fi);
      for (i = 0; i < (sourceWindows ())->count; i++)
	{
	  winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
	  tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT);
	  tuiUpdateExecInfo (winInfo);
	}
    }

  return;
}				/* tuiShowFrameInfo */


/*
   ** tui_vShowFrameInfo().
   **        Function to print the frame inforrmation for the TUI with args in a va_list.
 */
void
tui_vShowFrameInfo (va_list args)
{
  struct frame_info *fi;

  fi = va_arg (args, struct frame_info *);
  tuiShowFrameInfo (fi);

  return;
}				/* tui_vShowFrameInfo */


/*
   ** _initialize_tuiStack().
   **      Function to initialize gdb commands, for tui window stack manipulation.
 */
void
_initialize_tuiStack (void)
{
  if (tui_version)
    {
      add_com ("update", class_tui, _tuiUpdateLocation_command,
	       "Update the source window and locator to display the current execution point.\n");
    }

  return;
}				/* _initialize_tuiStack */


/*****************************************
** STATIC LOCAL FUNCTIONS                 **
******************************************/

/*
   **    _getFuncNameFromFrame().
 */
static char *
_getFuncNameFromFrame (struct frame_info *frameInfo)
{
  char *funcName = (char *) NULL;

  find_pc_partial_function (frameInfo->pc,
			    &funcName,
			    (CORE_ADDR *) NULL,
			    (CORE_ADDR *) NULL);
  return funcName;
}				/* _getFuncNameFromFrame */


/*
   ** _tuiUpdateLocation_command().
   **        Command to update the display with the current execution point
 */
static void
_tuiUpdateLocation_command (char *arg, int fromTTY)
{
#ifndef TRY
extern void frame_command (char *, int);
  frame_command ("0", FALSE);
#else
  struct frame_info *curFrame;

  /* Obtain the current execution point */
  if ((curFrame = get_current_frame ()) != (struct frame_info *) NULL)
    {
      struct frame_info *frame;
      int curLevel = 0;

      for (frame = get_prev_frame (curLevel);
	   (frame != (struct frame_info *) NULL && (frame != curFrame));
	   frame = get_prev_frame (frame))
	curLevel++;

      if (curFrame != (struct frame_info *) NULL)
	print_frame_info (frame, curLevel, 0, 1);
    }
#endif

  return;
}				/* _tuiUpdateLocation_command */
Commit	Line	Data
f377b406 SC	1	/* TUI display locator.
	2	Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
	3	Contributed by Hewlett-Packard Company.
	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
c906108c SS	21
	22	#include "defs.h"
	23	#include "symtab.h"
	24	#include "breakpoint.h"
	25	#include "frame.h"
	26
	27	#include "tui.h"
	28	#include "tuiData.h"
	29	#include "tuiStack.h"
	30	#include "tuiSourceWin.h"
	31
	32
	33	/*****************************************
	34	STATIC LOCAL FUNCTIONS FORWARD DECLS
	35	******************************************/
	36
a14ed312 KB	37	static char _getFuncNameFromFrame (struct frame_info );
a14ed312 KB	38	static void _tuiUpdateLocation_command (char *, int);
c906108c SS	39
	40
	41
	42	/*****************************************
	43	PUBLIC FUNCTION
	44	******************************************/
	45
	46	/*
c5aa993b JM	47	** tuiClearLocatorDisplay()
c5aa993b JM	48	*/
c906108c	49	void
c906108c	50	tuiClearLocatorDisplay (void)
c906108c SS	51	{
	52	TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
	53	int i;
	54
	55	if (locator->handle != (WINDOW *) NULL)
	56	{
	57	/* No need to werase, since writing a line of
	58	* blanks which we do below, is equivalent.
c5aa993b	59	*/
c906108c SS	60	/* werase(locator->handle); */
	61	wmove (locator->handle, 0, 0);
	62	wstandout (locator->handle);
	63	for (i = 0; i < locator->width; i++)
	64	waddch (locator->handle, ' ');
	65	wstandend (locator->handle);
	66	tuiRefreshWin (locator);
	67	wmove (locator->handle, 0, 0);
	68	locator->contentInUse = FALSE;
	69	}
	70
	71	return;
	72	} /* tuiClearLocatorDisplay */
	73
	74
	75	/*
c5aa993b JM	76	** tuiShowLocatorContent()
c5aa993b JM	77	*/
c906108c	78	void
c906108c	79	tuiShowLocatorContent (void)
c906108c SS	80	{
	81	char *string;
	82	TuiGenWinInfoPtr locator;
	83
	84	locator = locatorWinInfoPtr ();
	85
	86	if (m_genWinPtrNotNull (locator) && locator->handle != (WINDOW *) NULL)
	87	{
	88	string = displayableWinContentAt (locator, 0);
	89	if (string != (char *) NULL)
	90	{
	91	wmove (locator->handle, 0, 0);
	92	wstandout (locator->handle);
	93	waddstr (locator->handle, string);
	94	wstandend (locator->handle);
	95	tuiRefreshWin (locator);
	96	wmove (locator->handle, 0, 0);
	97	if (string != nullStr ())
	98	tuiFree (string);
	99	locator->contentInUse = TRUE;
	100	}
	101	}
	102
	103	return;
	104	} /* tuiShowLocatorContent */
	105
	106
	107	/*
c5aa993b JM	108	** tuiSetLocatorInfo().
	109	** Function to update the locator, with the provided arguments.
	110	*/
c906108c	111	void
eca6576c SC	112	tuiSetLocatorInfo (char fname, char procname, int lineNo,
eca6576c SC	113	Opaque addr, TuiLocatorElementPtr element)
c906108c SS	114	{
	115	#ifdef COMMENT
	116	/* first free the old info */
	117	if (element->fileName)
	118	tuiFree (element->fileName);
	119	if (element->procName)
	120	tuiFree (element->procName);
	121
	122	if (fname == (char *) NULL)
	123	element->fileName = fname;
	124	else
	125	element->fileName = tuiStrDup (fname);
	126	if (procname == (char *) NULL)
	127	element->procName = procname;
	128	else
	129	element->procName = tuiStrDup (procname);
	130	#else
	131	element->fileName[0] = (char) 0;
	132	element->procName[0] = (char) 0;
	133	strcat_to_buf (element->fileName, MAX_LOCATOR_ELEMENT_LEN, fname);
	134	strcat_to_buf (element->procName, MAX_LOCATOR_ELEMENT_LEN, procname);
	135	#endif
	136	element->lineNo = lineNo;
	137	element->addr = (Opaque) addr;
	138
	139	return;
	140	} /* tuiSetLocatorInfo */
	141
	142
	143	/*
c5aa993b JM	144	** tuiUpdateLocatorFilename().
	145	** Update only the filename portion of the locator.
	146	*/
c906108c	147	void
eca6576c	148	tuiUpdateLocatorFilename (char *fileName)
c906108c SS	149	{
	150	TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
	151
	152	if (locator->content[0] == (Opaque) NULL)
	153	tuiSetLocatorContent ((struct frame_info *) NULL);
	154	((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;
	155	strcat_to_buf (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName,
	156	MAX_LOCATOR_ELEMENT_LEN,
	157	fileName);
	158
	159	tuiShowLocatorContent ();
	160
	161	return;
	162	} /* tuiUpdateLocatorFilename */
	163
	164
	165	/*
c5aa993b JM	166	** tui_vUpdateLocatorFilename().
	167	** Update only the filename portion of the locator with args in a va_list.
	168	*/
c906108c	169	void
eca6576c	170	tui_vUpdateLocatorFilename (va_list args)
c906108c SS	171	{
	172	char *fileName;
	173
	174	fileName = va_arg (args, char *);
	175	tuiUpdateLocatorFilename (fileName);
	176
	177	return;
	178	} /* tui_vUpdateLocatorFilename */
	179
	180
	181	/*
c5aa993b JM	182	** tuiSwitchFilename().
	183	** Update the filename portion of the locator. Clear the other info in locator.
	184	** (elz)
	185	*/
c906108c	186	void
eca6576c	187	tuiSwitchFilename (char *fileName)
c906108c SS	188	{
	189	TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
	190
	191	if (locator->content[0] == (Opaque) NULL)
	192	tuiSetLocatorContent ((struct frame_info *) NULL);
	193	((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName[0] = (char) 0;
	194
	195	tuiSetLocatorInfo (fileName,
	196	(char *) NULL,
	197	0,
	198	(Opaque) NULL,
	199	&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
	200
	201	tuiShowLocatorContent ();
	202
	203	return;
	204	} /* tuiSwitchFilename */
	205
	206
	207	/*
c5aa993b JM	208	** tuiGetLocatorFilename().
	209	** Get the filename portion of the locator.
	210	** (elz)
	211	*/
c906108c	212	void
eca6576c	213	tuiGetLocatorFilename (TuiGenWinInfoPtr locator, char **filename)
c906108c SS	214	{
	215
	216	/* the current filename could be non known, in which case the xmalloc would
	217	allocate no memory, because the length would be 0 */
	218	if (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName)
	219	{
	220	int name_length =
	221	strlen (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);
	222
	223	(filename) = (char ) xmalloc (name_length + 1);
	224	strcpy ((*filename),
	225	((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName);
	226	}
	227
	228	return;
	229	} /* tuiGetLocatorFilename */
	230
	231
	232	/*
c5aa993b JM	233	** tuiUpdateLocatorInfoFromFrame().
	234	** Function to update the locator, with the information extracted from frameInfo
	235	*/
c906108c	236	void
eca6576c SC	237	tuiUpdateLocatorInfoFromFrame (struct frame_info *frameInfo,
eca6576c SC	238	TuiLocatorElementPtr element)
c906108c SS	239	{
	240	struct symtab_and_line symtabAndLine;
	241
	242	/* now get the new info */
	243	symtabAndLine = find_pc_line (frameInfo->pc,
	244	(frameInfo->next != (struct frame_info *) NULL &&
	245	!frameInfo->next->signal_handler_caller &&
	246	!frame_in_dummy (frameInfo->next)));
	247	if (symtabAndLine.symtab && symtabAndLine.symtab->filename)
	248	tuiSetLocatorInfo (symtabAndLine.symtab->filename,
	249	_getFuncNameFromFrame (frameInfo),
	250	symtabAndLine.line,
	251	(Opaque) frameInfo->pc,
	252	element);
	253	else
	254	tuiSetLocatorInfo ((char *) NULL,
	255	_getFuncNameFromFrame (frameInfo),
	256	0,
	257	(Opaque) frameInfo->pc,
	258	element);
	259
	260	return;
	261	} /* tuiUpdateLocatorInfoFromFrame */
	262
	263
	264	/*
c5aa993b JM	265	** tuiSetLocatorContent().
	266	** Function to set the content of the locator
	267	*/
c906108c	268	void
eca6576c	269	tuiSetLocatorContent (struct frame_info *frameInfo)
c906108c SS	270	{
	271	TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
	272	TuiWinElementPtr element;
	273	struct symtab_and_line symtabAndLine;
	274
	275	/* Allocate the element if necessary */
	276	if (locator->contentSize <= 0)
	277	{
	278	TuiWinContent contentPtr;
	279
	280	if ((locator->content = (OpaquePtr) allocContent (1, locator->type)) == (OpaquePtr) NULL)
	281	error ("Unable to Allocate Memory to Display Location.");
	282	locator->contentSize = 1;
	283	}
	284
	285	if (frameInfo != (struct frame_info *) NULL)
	286	tuiUpdateLocatorInfoFromFrame (frameInfo,
	287	&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
	288	else
	289	tuiSetLocatorInfo ((char *) NULL,
	290	(char *) NULL,
	291	0,
	292	(Opaque) NULL,
	293	&((TuiWinElementPtr) locator->content[0])->whichElement.locator);
	294	return;
	295	} /* tuiSetLocatorContent */
	296
	297
	298	/*
c5aa993b JM	299	** tuiUpdateLocatorDisplay().
	300	** Function to update the locator display
	301	*/
c906108c	302	void
eca6576c	303	tuiUpdateLocatorDisplay (struct frame_info *frameInfo)
c906108c SS	304	{
	305	tuiClearLocatorDisplay ();
	306	tuiSetLocatorContent (frameInfo);
	307	tuiShowLocatorContent ();
	308
	309	return;
	310	} /* tuiUpdateLocatorDisplay */
	311
	312
	313	/*
c5aa993b JM	314	** tuiShowFrameInfo().
	315	** Function to print the frame inforrmation for the TUI.
	316	*/
c906108c	317	void
eca6576c	318	tuiShowFrameInfo (struct frame_info *fi)
c906108c SS	319	{
	320	TuiWinInfoPtr winInfo;
	321	register int i;
	322
	323	if (fi)
	324	{
	325	register int startLine, i;
	326	register struct symtab *s;
	327	CORE_ADDR low;
	328	TuiGenWinInfoPtr locator = locatorWinInfoPtr ();
	329	int sourceAlreadyDisplayed;
	330
	331
	332	s = find_pc_symtab (fi->pc);
	333	sourceAlreadyDisplayed = tuiSourceIsDisplayed (s->filename);
	334	tuiUpdateLocatorDisplay (fi);
	335	for (i = 0; i < (sourceWindows ())->count; i++)
	336	{
	337	winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
	338	if (winInfo == srcWin)
	339	{
	340	startLine =
	341	(((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo -
	342	(winInfo->generic.viewportHeight / 2)) + 1;
	343	if (startLine <= 0)
	344	startLine = 1;
	345	}
	346	else
	347	{
	348	if (find_pc_partial_function (fi->pc, (char **) NULL, &low, (CORE_ADDR) NULL) == 0)
	349	error ("No function contains program counter for selected frame.\n");
	350	else
	351	low = (CORE_ADDR) tuiGetLowDisassemblyAddress ((Opaque) low, (Opaque) fi->pc);
	352	}
	353
	354	if (winInfo == srcWin)
	355	{
	356	if (!(sourceAlreadyDisplayed && m_tuiLineDisplayedWithinThreshold (
	357	winInfo,
	358	((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo)))
	359	tuiUpdateSourceWindow (winInfo, s, (Opaque) startLine, TRUE);
	360	else
	361	tuiSetIsExecPointAt ((Opaque)
	362	((TuiWinElementPtr) locator->content[0])->whichElement.locator.lineNo,
	363	winInfo);
	364	}
	365	else
	366	{
	367	if (winInfo == disassemWin)
	368	{
	369	if (!m_tuiLineDisplayedWithinThreshold (winInfo,
	370	((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr))
	371	tuiUpdateSourceWindow (winInfo, s, (Opaque) low, TRUE);
	372	else
	373	tuiSetIsExecPointAt ((Opaque)
	374	((TuiWinElementPtr) locator->content[0])->whichElement.locator.addr,
	375	winInfo);
	376	}
	377	}
	378	tuiUpdateExecInfo (winInfo);
	379	}
	380	}
	381	else
	382	{
383	tuiUpdateLocatorDisplay (fi);
384	for (i = 0; i < (sourceWindows ())->count; i++)
385	{
386	winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i];
387	tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT);
388	tuiUpdateExecInfo (winInfo);
389	}
390	}
391
392	return;
393	} /* tuiShowFrameInfo */
394
395
396	/*
c5aa993b JM	397	** tui_vShowFrameInfo().
	398	** Function to print the frame inforrmation for the TUI with args in a va_list.
	399	*/
c906108c	400	void
eca6576c	401	tui_vShowFrameInfo (va_list args)
c906108c SS	402	{
	403	struct frame_info *fi;
	404
	405	fi = va_arg (args, struct frame_info *);
	406	tuiShowFrameInfo (fi);
	407
	408	return;
	409	} /* tui_vShowFrameInfo */
	410
	411
	412	/*
c5aa993b JM	413	** _initialize_tuiStack().
	414	** Function to initialize gdb commands, for tui window stack manipulation.
	415	*/
c906108c	416	void
fba45db2	417	_initialize_tuiStack (void)
c906108c SS	418	{
	419	if (tui_version)
	420	{
	421	add_com ("update", class_tui, _tuiUpdateLocation_command,
	422	"Update the source window and locator to display the current execution point.\n");
	423	}
	424
	425	return;
	426	} /* _initialize_tuiStack */
	427
	428
	429	/*****************************************
	430	STATIC LOCAL FUNCTIONS
	431	******************************************/
	432
	433	/*
c5aa993b JM	434	** _getFuncNameFromFrame().
c5aa993b JM	435	*/
c906108c	436	static char *
eca6576c	437	_getFuncNameFromFrame (struct frame_info *frameInfo)
c906108c SS	438	{
	439	char funcName = (char ) NULL;
	440
	441	find_pc_partial_function (frameInfo->pc,
	442	&funcName,
	443	(CORE_ADDR *) NULL,
	444	(CORE_ADDR *) NULL);
	445	return funcName;
	446	} /* _getFuncNameFromFrame */
	447
	448
	449	/*
c5aa993b JM	450	** _tuiUpdateLocation_command().
	451	** Command to update the display with the current execution point
	452	*/
c906108c	453	static void
eca6576c	454	_tuiUpdateLocation_command (char *arg, int fromTTY)
c906108c SS	455	{
c906108c SS	456	#ifndef TRY
a14ed312	457	extern void frame_command (char *, int);
c906108c SS	458	frame_command ("0", FALSE);
	459	#else
	460	struct frame_info *curFrame;
	461
	462	/* Obtain the current execution point */
	463	if ((curFrame = get_current_frame ()) != (struct frame_info *) NULL)
	464	{
	465	struct frame_info *frame;
	466	int curLevel = 0;
	467
	468	for (frame = get_prev_frame (curLevel);
	469	(frame != (struct frame_info *) NULL && (frame != curFrame));
	470	frame = get_prev_frame (frame))
	471	curLevel++;
	472
	473	if (curFrame != (struct frame_info *) NULL)
	474	print_frame_info (frame, curLevel, 0, 1);
	475	}
	476	#endif
	477
	478	return;
	479	} /* _tuiUpdateLocation_command */