/* TUI display source/assembly window. 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 #include "symtab.h" #include "frame.h" #include "breakpoint.h" #include "tui.h" #include "tuiData.h" #include "tuiStack.h" #include "tuiSourceWin.h" #include "tuiSource.h" #include "tuiDisassem.h" /***************************************** ** EXTERNAL FUNCTION DECLS ** ******************************************/ /***************************************** ** EXTERNAL DATA DECLS ** ******************************************/ extern int current_source_line; extern struct symtab *current_source_symtab; /***************************************** ** STATIC LOCAL FUNCTIONS FORWARD DECLS ** ******************************************/ /***************************************** ** STATIC LOCAL DATA ** ******************************************/ /***************************************** ** PUBLIC FUNCTIONS ** ******************************************/ /********************************* ** SOURCE/DISASSEM FUNCTIONS ** *********************************/ /* ** tuiSrcWinIsDisplayed(). */ int #ifdef __STDC__ tuiSrcWinIsDisplayed (void) #else tuiSrcWinIsDisplayed () #endif { return (m_winPtrNotNull (srcWin) && srcWin->generic.isVisible); } /* tuiSrcWinIsDisplayed */ /* ** tuiAsmWinIsDisplayed(). */ int #ifdef __STDC__ tuiAsmWinIsDisplayed (void) #else tuiAsmWinIsDisplayed () #endif { return (m_winPtrNotNull (disassemWin) && disassemWin->generic.isVisible); } /* tuiAsmWinIsDisplayed */ /* ** tuiDisplayMainFunction(). ** Function to display the "main" routine" */ void #ifdef __STDC__ tuiDisplayMainFunction (void) #else tuiDisplayMainFunction () #endif { if ((sourceWindows ())->count > 0) { CORE_ADDR addr; addr = parse_and_eval_address ("main"); if (addr <= (CORE_ADDR) 0) addr = parse_and_eval_address ("MAIN"); if (addr > (CORE_ADDR) 0) { struct symtab_and_line sal; tuiUpdateSourceWindowsWithAddr ((Opaque) addr); sal = find_pc_line (addr, 0); tuiSwitchFilename (sal.symtab->filename); } } return; } /* tuiDisplayMainFunction */ /* ** tuiUpdateSourceWindow(). ** Function to display source in the source window. This function ** initializes the horizontal scroll to 0. */ void #ifdef __STDC__ tuiUpdateSourceWindow ( TuiWinInfoPtr winInfo, struct symtab *s, Opaque lineOrAddr, int noerror) #else tuiUpdateSourceWindow (winInfo, s, lineOrAddr, noerror) TuiWinInfoPtr winInfo; struct symtab *s; Opaque lineOrAddr; int noerror; #endif { winInfo->detail.sourceInfo.horizontalOffset = 0; tuiUpdateSourceWindowAsIs (winInfo, s, lineOrAddr, noerror); return; } /* tuiUpdateSourceWindow */ /* ** tuiUpdateSourceWindowAsIs(). ** Function to display source in the source/asm window. This ** function shows the source as specified by the horizontal offset. */ void #ifdef __STDC__ tuiUpdateSourceWindowAsIs ( TuiWinInfoPtr winInfo, struct symtab *s, Opaque lineOrAddr, int noerror) #else tuiUpdateSourceWindowAsIs (winInfo, s, lineOrAddr, noerror) TuiWinInfoPtr winInfo; struct symtab *s; Opaque lineOrAddr; int noerror; #endif { TuiStatus ret; if (winInfo->generic.type == SRC_WIN) ret = tuiSetSourceContent (s, (int) lineOrAddr, noerror); else ret = tuiSetDisassemContent (s, (Opaque) lineOrAddr); if (ret == TUI_FAILURE) { tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT); tuiClearExecInfoContent (winInfo); } else { tuiEraseSourceContent (winInfo, NO_EMPTY_SOURCE_PROMPT); tuiShowSourceContent (winInfo); tuiUpdateExecInfo (winInfo); if (winInfo->generic.type == SRC_WIN) { current_source_line = (int) lineOrAddr + (winInfo->generic.contentSize - 2); current_source_symtab = s; /* ** If the focus was in the asm win, put it in the src ** win if we don't have a split layout */ if (tuiWinWithFocus () == disassemWin && currentLayout () != SRC_DISASSEM_COMMAND) tuiSetWinFocusTo (srcWin); } } return; } /* tuiUpdateSourceWindowAsIs */ /* ** tuiUpdateSourceWindowsWithAddr(). ** Function to ensure that the source and/or disassemly windows ** reflect the input address. */ void #ifdef __STDC__ tuiUpdateSourceWindowsWithAddr ( Opaque addr) #else tuiUpdateSourceWindowsWithAddr (addr) Opaque addr; #endif { if (addr > (Opaque) NULL) { struct symtab_and_line sal; switch (currentLayout ()) { case DISASSEM_COMMAND: case DISASSEM_DATA_COMMAND: tuiShowDisassem (addr); break; case SRC_DISASSEM_COMMAND: tuiShowDisassemAndUpdateSource (addr); break; default: sal = find_pc_line ((CORE_ADDR) addr, 0); tuiShowSource (sal.symtab, (Opaque) sal.line, FALSE); break; } } else { int i; for (i = 0; i < (sourceWindows ())->count; i++) { TuiWinInfoPtr winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i]; tuiClearSourceContent (winInfo, EMPTY_SOURCE_PROMPT); tuiClearExecInfoContent (winInfo); } } return; } /* tuiUpdateSourceWindowsWithAddr */ /* ** tui_vUpdateSourceWindowsWithAddr() ** Update the source window with the address in a va_list */ void #ifdef __STDC__ tui_vUpdateSourceWindowsWithAddr ( va_list args) #else tui_vUpdateSourceWindowsWithAddr (args) va_list args; #endif { Opaque addr = va_arg (args, Opaque); tuiUpdateSourceWindowsWithAddr (addr); return; } /* tui_vUpdateSourceWindowsWithAddr */ /* ** tuiUpdateSourceWindowsWithLine(). ** Function to ensure that the source and/or disassemly windows ** reflect the input address. */ void #ifdef __STDC__ tuiUpdateSourceWindowsWithLine ( struct symtab *s, int line) #else tuiUpdateSourceWindowsWithLine (s, line) struct symtab *s; int line; #endif { switch (currentLayout ()) { case DISASSEM_COMMAND: case DISASSEM_DATA_COMMAND: tuiUpdateSourceWindowsWithAddr ((Opaque) find_line_pc (s, line)); break; default: tuiShowSource (s, (Opaque) line, FALSE); if (currentLayout () == SRC_DISASSEM_COMMAND) tuiShowDisassem ((Opaque) find_line_pc (s, line)); break; } return; } /* tuiUpdateSourceWindowsWithLine */ /* ** tui_vUpdateSourceWindowsWithLine() ** Update the source window with the line number in a va_list */ void #ifdef __STDC__ tui_vUpdateSourceWindowsWithLine ( va_list args) #else tui_vUpdateSourceWindowsWithLine (args) va_list args; #endif { struct symtab *s = va_arg (args, struct symtab *); int line = va_arg (args, int); tuiUpdateSourceWindowsWithLine (s, line); return; } /* tui_vUpdateSourceWindowsWithLine */ /* ** tuiClearSourceContent(). */ void #ifdef __STDC__ tuiClearSourceContent ( TuiWinInfoPtr winInfo, int displayPrompt) #else tuiClearSourceContent (winInfo, displayPrompt) TuiWinInfoPtr winInfo; int displayPrompt; #endif { if (m_winPtrNotNull (winInfo)) { register int i; winInfo->generic.contentInUse = FALSE; tuiEraseSourceContent (winInfo, displayPrompt); for (i = 0; i < winInfo->generic.contentSize; i++) { TuiWinElementPtr element = (TuiWinElementPtr) winInfo->generic.content[i]; element->whichElement.source.hasBreak = FALSE; element->whichElement.source.isExecPoint = FALSE; } } return; } /* tuiClearSourceContent */ /* ** tuiClearAllSourceWinsContent(). */ void #ifdef __STDC__ tuiClearAllSourceWinsContent ( int displayPrompt) #else tuiClearAllSourceWinsContent (displayPrompt) int displayPrompt; #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiClearSourceContent ((TuiWinInfoPtr) (sourceWindows ())->list[i], displayPrompt); return; } /* tuiClearAllSourceWinsContent */ /* ** tuiEraseSourceContent(). */ void #ifdef __STDC__ tuiEraseSourceContent ( TuiWinInfoPtr winInfo, int displayPrompt) #else tuiEraseSourceContent (winInfo, displayPrompt) TuiWinInfoPtr winInfo; int displayPrompt; #endif { int xPos; int halfWidth = (winInfo->generic.width - 2) / 2; if (winInfo->generic.handle != (WINDOW *) NULL) { werase (winInfo->generic.handle); checkAndDisplayHighlightIfNeeded (winInfo); if (displayPrompt == EMPTY_SOURCE_PROMPT) { char *noSrcStr; if (winInfo->generic.type == SRC_WIN) noSrcStr = NO_SRC_STRING; else noSrcStr = NO_DISASSEM_STRING; if (strlen (noSrcStr) >= halfWidth) xPos = 1; else xPos = halfWidth - strlen (noSrcStr); mvwaddstr (winInfo->generic.handle, (winInfo->generic.height / 2), xPos, noSrcStr); /* elz: added this function call to set the real contents of the window to what is on the screen, so that later calls to refresh, do display the correct stuff, and not the old image */ tuiSetSourceContentNil (winInfo, noSrcStr); } tuiRefreshWin (&winInfo->generic); } return; } /* tuiEraseSourceContent */ /* ** tuiEraseAllSourceContent(). */ void #ifdef __STDC__ tuiEraseAllSourceWinsContent ( int displayPrompt) #else tuiEraseAllSourceWinsContent (displayPrompt) int displayPrompt; #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiEraseSourceContent ((TuiWinInfoPtr) (sourceWindows ())->list[i], displayPrompt); return; } /* tuiEraseAllSourceWinsContent */ /* ** tuiShowSourceContent(). */ void #ifdef __STDC__ tuiShowSourceContent ( TuiWinInfoPtr winInfo) #else tuiShowSourceContent (winInfo) TuiWinInfoPtr winInfo; #endif { int curLine, i, curX; tuiEraseSourceContent (winInfo, (winInfo->generic.contentSize <= 0)); if (winInfo->generic.contentSize > 0) { char *line; for (curLine = 1; (curLine <= winInfo->generic.contentSize); curLine++) mvwaddstr ( winInfo->generic.handle, curLine, 1, ((TuiWinElementPtr) winInfo->generic.content[curLine - 1])->whichElement.source.line); } checkAndDisplayHighlightIfNeeded (winInfo); tuiRefreshWin (&winInfo->generic); winInfo->generic.contentInUse = TRUE; return; } /* tuiShowSourceContent */ /* ** tuiShowAllSourceWinsContent() */ void #ifdef __STDC__ tuiShowAllSourceWinsContent (void) #else tuiShowAllSourceWinsContent () #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiShowSourceContent ((TuiWinInfoPtr) (sourceWindows ())->list[i]); return; } /* tuiShowAllSourceWinsContent */ /* ** tuiHorizontalSourceScroll(). ** Scroll the source forward or backward horizontally */ void #ifdef __STDC__ tuiHorizontalSourceScroll ( TuiWinInfoPtr winInfo, TuiScrollDirection direction, int numToScroll) #else tuiHorizontalSourceScroll (winInfo, direction, numToScroll) TuiWinInfoPtr winInfo; TuiScrollDirection direction; int numToScroll; #endif { if (winInfo->generic.content != (OpaquePtr) NULL) { int offset; struct symtab *s; if (current_source_symtab == (struct symtab *) NULL) s = find_pc_symtab (selected_frame->pc); else s = current_source_symtab; if (direction == LEFT_SCROLL) offset = winInfo->detail.sourceInfo.horizontalOffset + numToScroll; else { if ((offset = winInfo->detail.sourceInfo.horizontalOffset - numToScroll) < 0) offset = 0; } winInfo->detail.sourceInfo.horizontalOffset = offset; tuiUpdateSourceWindowAsIs ( winInfo, s, ((winInfo == srcWin) ? (Opaque) ((TuiWinElementPtr) winInfo->generic.content[0])->whichElement.source.lineOrAddr.lineNo : (Opaque) ((TuiWinElementPtr) winInfo->generic.content[0])->whichElement.source.lineOrAddr.addr), (int) FALSE); } return; } /* tuiHorizontalSourceScroll */ /* ** tuiSetHasExecPointAt(). ** Set or clear the hasBreak flag in the line whose line is lineNo. */ void #ifdef __STDC__ tuiSetIsExecPointAt ( Opaque lineOrAddr, TuiWinInfoPtr winInfo) #else tuiSetIsExecPointAt (lineOrAddr, winInfo) Opaque lineOrAddr; TuiWinInfoPtr winInfo; #endif { int i; TuiWinContent content = (TuiWinContent) winInfo->generic.content; i = 0; while (i < winInfo->generic.contentSize) { if (content[i]->whichElement.source.lineOrAddr.addr == lineOrAddr) content[i]->whichElement.source.isExecPoint = TRUE; else content[i]->whichElement.source.isExecPoint = FALSE; i++; } return; } /* tuiSetIsExecPointAt */ /* ** tuiSetHasBreakAt(). ** Set or clear the hasBreak flag in the line whose line is lineNo. */ void #ifdef __STDC__ tuiSetHasBreakAt ( struct breakpoint *bp, TuiWinInfoPtr winInfo, int hasBreak) #else tuiSetHasBreakAt (bp, winInfo, hasBreak) struct breakpoint *bp; TuiWinInfoPtr winInfo; int hasBreak; #endif { int i; TuiWinContent content = (TuiWinContent) winInfo->generic.content; i = 0; while (i < winInfo->generic.contentSize) { int gotIt; TuiGenWinInfoPtr locator = locatorWinInfoPtr (); if (winInfo == srcWin) { char *fileNameDisplayed = (char *) NULL; if (((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName != (char *) NULL) fileNameDisplayed = ((TuiWinElementPtr) locator->content[0])->whichElement.locator.fileName; else if (current_source_symtab != (struct symtab *) NULL) fileNameDisplayed = current_source_symtab->filename; gotIt = (fileNameDisplayed != (char *) NULL && (strcmp (bp->source_file, fileNameDisplayed) == 0) && content[i]->whichElement.source.lineOrAddr.lineNo == bp->line_number); } else gotIt = (content[i]->whichElement.source.lineOrAddr.addr == (Opaque) bp->address); if (gotIt) { content[i]->whichElement.source.hasBreak = hasBreak; break; } i++; } return; } /* tuiSetHasBreakAt */ /* ** tuiAllSetHasBreakAt(). ** Set or clear the hasBreak flag in all displayed source windows. */ void #ifdef __STDC__ tuiAllSetHasBreakAt ( struct breakpoint *bp, int hasBreak) #else tuiAllSetHasBreakAt (bp, hasBreak) struct breakpoint *bp; int hasBreak; #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiSetHasBreakAt (bp, (TuiWinInfoPtr) (sourceWindows ())->list[i], hasBreak); return; } /* tuiAllSetHasBreakAt */ /* ** tui_vAllSetHasBreakAt() ** Set or clear the hasBreak flag in all displayed source windows, ** with params in a va_list */ void #ifdef __STDC__ tui_vAllSetHasBreakAt ( va_list args) #else tui_vAllSetHasBreakAt (args) va_list args; #endif { struct breakpoint *bp = va_arg (args, struct breakpoint *); int hasBreak = va_arg (args, int); tuiAllSetHasBreakAt (bp, hasBreak); return; } /* tui_vAllSetHasBreakAt */ /********************************* ** EXECUTION INFO FUNCTIONS ** *********************************/ /* ** tuiSetExecInfoContent(). ** Function to initialize the content of the execution info window, ** based upon the input window which is either the source or ** disassembly window. */ TuiStatus #ifdef __STDC__ tuiSetExecInfoContent ( TuiWinInfoPtr winInfo) #else tuiSetExecInfoContent (winInfo) TuiWinInfoPtr winInfo; #endif { TuiStatus ret = TUI_SUCCESS; if (winInfo->detail.sourceInfo.executionInfo != (TuiGenWinInfoPtr) NULL) { TuiGenWinInfoPtr execInfoPtr = winInfo->detail.sourceInfo.executionInfo; if (execInfoPtr->content == (OpaquePtr) NULL) execInfoPtr->content = (OpaquePtr) allocContent (winInfo->generic.height, execInfoPtr->type); if (execInfoPtr->content != (OpaquePtr) NULL) { int i; for (i = 0; i < winInfo->generic.contentSize; i++) { TuiWinElementPtr element; TuiWinElementPtr srcElement; element = (TuiWinElementPtr) execInfoPtr->content[i]; srcElement = (TuiWinElementPtr) winInfo->generic.content[i]; /* ** First check to see if we have a breakpoint that is ** temporary. If so, and this is our current execution point, ** then clear the break indicator. */ if (srcElement->whichElement.source.hasBreak && srcElement->whichElement.source.isExecPoint) { struct breakpoint *bp; int found = FALSE; extern struct breakpoint *breakpoint_chain; for (bp = breakpoint_chain; (bp != (struct breakpoint *) NULL && !found); bp = bp->next) { found = (winInfo == srcWin && bp->line_number == srcElement->whichElement.source.lineOrAddr.lineNo) || (winInfo == disassemWin && bp->address == (CORE_ADDR) srcElement->whichElement.source.lineOrAddr.addr); if (found) srcElement->whichElement.source.hasBreak = (bp->disposition != del || bp->hit_count <= 0); } if (!found) srcElement->whichElement.source.hasBreak = FALSE; } /* ** Now update the exec info content based upon the state ** of each line as indicated by the source content. */ if (srcElement->whichElement.source.hasBreak && srcElement->whichElement.source.isExecPoint) element->whichElement.simpleString = breakLocationStr (); else if (srcElement->whichElement.source.hasBreak) element->whichElement.simpleString = breakStr (); else if (srcElement->whichElement.source.isExecPoint) element->whichElement.simpleString = locationStr (); else element->whichElement.simpleString = blankStr (); } execInfoPtr->contentSize = winInfo->generic.contentSize; } else ret = TUI_FAILURE; } return ret; } /* tuiSetExecInfoContent */ /* ** tuiShowExecInfoContent(). */ void #ifdef __STDC__ tuiShowExecInfoContent ( TuiWinInfoPtr winInfo) #else tuiShowExecInfoContent (winInfo) TuiWinInfoPtr winInfo; #endif { TuiGenWinInfoPtr execInfo = winInfo->detail.sourceInfo.executionInfo; int curLine; werase (execInfo->handle); tuiRefreshWin (execInfo); for (curLine = 1; (curLine <= execInfo->contentSize); curLine++) mvwaddstr (execInfo->handle, curLine, 0, ((TuiWinElementPtr) execInfo->content[curLine - 1])->whichElement.simpleString); tuiRefreshWin (execInfo); execInfo->contentInUse = TRUE; return; } /* tuiShowExecInfoContent */ /* ** tuiShowAllExecInfosContent() */ void #ifdef __STDC__ tuiShowAllExecInfosContent (void) #else tuiShowAllExecInfosContent () #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiShowExecInfoContent ((TuiWinInfoPtr) (sourceWindows ())->list[i]); return; } /* tuiShowAllExecInfosContent */ /* ** tuiEraseExecInfoContent(). */ void #ifdef __STDC__ tuiEraseExecInfoContent ( TuiWinInfoPtr winInfo) #else tuiEraseExecInfoContent (winInfo) TuiWinInfoPtr winInfo; #endif { TuiGenWinInfoPtr execInfo = winInfo->detail.sourceInfo.executionInfo; werase (execInfo->handle); tuiRefreshWin (execInfo); return; } /* tuiEraseExecInfoContent */ /* ** tuiEraseAllExecInfosContent() */ void #ifdef __STDC__ tuiEraseAllExecInfosContent (void) #else tuiEraseAllExecInfosContent () #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiEraseExecInfoContent ((TuiWinInfoPtr) (sourceWindows ())->list[i]); return; } /* tuiEraseAllExecInfosContent */ /* ** tuiClearExecInfoContent(). */ void #ifdef __STDC__ tuiClearExecInfoContent ( TuiWinInfoPtr winInfo) #else tuiClearExecInfoContent (winInfo) TuiWinInfoPtr winInfo; #endif { winInfo->detail.sourceInfo.executionInfo->contentInUse = FALSE; tuiEraseExecInfoContent (winInfo); return; } /* tuiClearExecInfoContent */ /* ** tuiClearAllExecInfosContent() */ void #ifdef __STDC__ tuiClearAllExecInfosContent (void) #else tuiClearAllExecInfosContent () #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiClearExecInfoContent ((TuiWinInfoPtr) (sourceWindows ())->list[i]); return; } /* tuiClearAllExecInfosContent */ /* ** tuiUpdateExecInfo(). ** Function to update the execution info window */ void #ifdef __STDC__ tuiUpdateExecInfo ( TuiWinInfoPtr winInfo) #else tuiUpdateExecInfo (winInfo) TuiWinInfoPtr winInfo; #endif { tuiSetExecInfoContent (winInfo); tuiShowExecInfoContent (winInfo); } /* tuiUpdateExecInfo /* ** tuiUpdateAllExecInfos() */ void #ifdef __STDC__ tuiUpdateAllExecInfos (void) #else tuiUpdateAllExecInfos () #endif { int i; for (i = 0; i < (sourceWindows ())->count; i++) tuiUpdateExecInfo ((TuiWinInfoPtr) (sourceWindows ())->list[i]); return; } /* tuiUpdateAllExecInfos */ /* tuiUpdateOnEnd() ** elz: This function clears the execution info from the source windows ** and resets the locator to display no line info, procedure info, pc ** info. It is called by stack_publish_stopped_with_no_frame, which ** is called then the target terminates execution */ void #ifdef __STDC__ tuiUpdateOnEnd (void) #else tuiUpdateOnEnd () #endif { int i; TuiGenWinInfoPtr locator; char *filename; TuiWinInfoPtr winInfo; locator = locatorWinInfoPtr (); /* for all the windows (src, asm) */ for (i = 0; i < (sourceWindows ())->count; i++) { winInfo = (TuiWinInfoPtr) (sourceWindows ())->list[i]; tuiSetIsExecPointAt ((Opaque) - 1, winInfo); /* the target is'n running */ /* -1 should not match any line number or pc */ tuiSetExecInfoContent (winInfo); /*set winInfo so that > is'n displayed */ tuiShowExecInfoContent (winInfo); /* display the new contents */ } /*now update the locator */ tuiClearLocatorDisplay (); tuiGetLocatorFilename (locator, &filename); tuiSetLocatorInfo ( filename, (char *) NULL, 0, (Opaque) NULL, &((TuiWinElementPtr) locator->content[0])->whichElement.locator); tuiShowLocatorContent (); return; } /* tuiUpdateOnEnd */ TuiStatus #ifdef __STDC__ tuiAllocSourceBuffer ( TuiWinInfoPtr winInfo) #else tuiAllocSourceBuffer (winInfo) TuiWinInfoPtr winInfo; #endif { register char *srcLine, *srcLineBuf; register int i, lineWidth, c, maxLines; TuiStatus ret = TUI_FAILURE; maxLines = winInfo->generic.height; /* less the highlight box */ lineWidth = winInfo->generic.width - 1; /* ** Allocate the buffer for the source lines. Do this only once since they ** will be re-used for all source displays. The only other time this will ** be done is when a window's size changes. */ if (winInfo->generic.content == (OpaquePtr) NULL) { srcLineBuf = (char *) xmalloc ((maxLines * lineWidth) * sizeof (char)); if (srcLineBuf == (char *) NULL) fputs_unfiltered ( "Unable to Allocate Memory for Source or Disassembly Display.\n", gdb_stderr); else { /* allocate the content list */ if ((winInfo->generic.content = (OpaquePtr) allocContent (maxLines, SRC_WIN)) == (OpaquePtr) NULL) { tuiFree (srcLineBuf); srcLineBuf = (char *) NULL; fputs_unfiltered ( "Unable to Allocate Memory for Source or Disassembly Display.\n", gdb_stderr); } } for (i = 0; i < maxLines; i++) ((TuiWinElementPtr) winInfo->generic.content[i])->whichElement.source.line = srcLineBuf + (lineWidth * i); ret = TUI_SUCCESS; } else ret = TUI_SUCCESS; return ret; } /* tuiAllocSourceBuffer */ /* ** tuiLineIsDisplayed(). ** Answer whether the a particular line number or address is displayed ** in the current source window. */ int #ifdef __STDC__ tuiLineIsDisplayed ( Opaque lineNoOrAddr, TuiWinInfoPtr winInfo, int checkThreshold) #else tuiLineIsDisplayed (lineNoOrAddr, winInfo, checkThreshold) Opaque lineNoOrAddr; TuiWinInfoPtr winInfo; int checkThreshold; #endif { int isDisplayed = FALSE; int i, threshold; if (checkThreshold) threshold = SCROLL_THRESHOLD; else threshold = 0; i = 0; while (i < winInfo->generic.contentSize - threshold && !isDisplayed) { if (winInfo == srcWin) isDisplayed = (((TuiWinElementPtr) winInfo->generic.content[i])->whichElement.source.lineOrAddr.lineNo == (int) lineNoOrAddr); else isDisplayed = (((TuiWinElementPtr) winInfo->generic.content[i])->whichElement.source.lineOrAddr.addr == lineNoOrAddr); i++; } return isDisplayed; } /* tuiLineIsDisplayed */ /***************************************** ** STATIC LOCAL FUNCTIONS ** ******************************************/