| /* TUI display locator. |
| |
| Copyright 1998, 1999, 2000, 2001, 2002 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. */ |
| |
| /* FIXME: cagney/2002-02-28: The GDB coding standard indicates that |
| "defs.h" should be included first. Unfortunatly some systems |
| (currently Debian GNU/Linux) include the <stdbool.h> via <curses.h> |
| and they clash with "bfd.h"'s definiton of true/false. The correct |
| fix is to remove true/false from "bfd.h", however, until that |
| happens, hack around it by including "config.h" and <curses.h> |
| first. */ |
| |
| #include "config.h" |
| #ifdef HAVE_NCURSES_H |
| #include <ncurses.h> |
| #else |
| #ifdef HAVE_CURSES_H |
| #include <curses.h> |
| #endif |
| #endif |
| |
| #include "defs.h" |
| #include "symtab.h" |
| #include "breakpoint.h" |
| #include "frame.h" |
| #include "command.h" |
| |
| #include "tui.h" |
| #include "tuiData.h" |
| #include "tuiStack.h" |
| #include "tuiGeneralWin.h" |
| #include "tuiSource.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 */ |
| |
| |
| /* Update the locator, with the provided arguments. */ |
| void |
| tuiSetLocatorInfo (char *fname, char *procname, int lineNo, |
| CORE_ADDR addr, TuiLocatorElementPtr element) |
| { |
| 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); |
| element->lineNo = lineNo; |
| element->addr = addr; |
| } |
| |
| |
| /* |
| ** tuiUpdateLocatorFilename(). |
| ** Update only the filename portion of the locator. |
| */ |
| void |
| tuiUpdateLocatorFilename (const 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 */ |
| |
| /* |
| ** 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, |
| (CORE_ADDR) 0, |
| &((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, |
| frameInfo->pc, |
| element); |
| else |
| tuiSetLocatorInfo ((char *) NULL, |
| _getFuncNameFromFrame (frameInfo), |
| 0, |
| 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, |
| (CORE_ADDR) 0, |
| &((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); |
| if (s == 0) |
| return; |
| |
| startLine = 0; |
| sourceAlreadyDisplayed = tuiSourceIsDisplayed (s->filename); |
| tuiUpdateLocatorDisplay (fi); |
| for (i = 0; i < (sourceWindows ())->count; i++) |
| { |
| TuiWhichElement *item; |
| winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i]; |
| |
| item = &((TuiWinElementPtr) locator->content[0])->whichElement; |
| if (winInfo == srcWin) |
| { |
| startLine = (item->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 = tuiGetLowDisassemblyAddress (low, fi->pc); |
| } |
| |
| if (winInfo == srcWin) |
| { |
| TuiLineOrAddress l; |
| l.lineNo = startLine; |
| if (!(sourceAlreadyDisplayed |
| && tuiLineIsDisplayed (item->locator.lineNo, winInfo, TRUE))) |
| tuiUpdateSourceWindow (winInfo, s, l, TRUE); |
| else |
| { |
| l.lineNo = item->locator.lineNo; |
| tuiSetIsExecPointAt (l, winInfo); |
| } |
| } |
| else |
| { |
| if (winInfo == disassemWin) |
| { |
| TuiLineOrAddress a; |
| a.addr = low; |
| if (!tuiAddrIsDisplayed (item->locator.addr, winInfo, TRUE)) |
| tuiUpdateSourceWindow (winInfo, s, a, TRUE); |
| else |
| { |
| a.addr = item->locator.addr; |
| tuiSetIsExecPointAt (a, 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 */ |
| |
| /* |
| ** _initialize_tuiStack(). |
| ** Function to initialize gdb commands, for tui window stack manipulation. |
| */ |
| void |
| _initialize_tuiStack (void) |
| { |
| add_com ("update", class_tui, _tuiUpdateLocation_command, |
| "Update the source window and locator to display the current execution point.\n"); |
| } |
| |
| |
| /***************************************** |
| ** 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 */ |