Tue Apr 26 17:44:27 1994 Stan Shebs (shebs@andros.cygnus.com)

	* mpw-make.in (MacGDB): New target, standalone Mac-hosted gdb.
	(XDEPFILES): Define.
	(main.c.o): Compile with gC instead of C.
	* mac-defs.h: New file, menu etc definitions shared between
	C and Rez files.
	* macgdb.r: New file, Rez (resource compiler) resource
	definitions.
	* mac-xdep.c: New file, Mac host interface code.
	* config/m68k/xm-mpw.h (PATHNAME_SEPARATOR): Rename to
	DIRNAME_SEPARATOR.
	(PATHNAME_SEPARATOR_STRING): Remove.
	(SIGQUIT, SIGHUP): Define.
	(fileno, R_OK): Define.

1 files changed, 630 insertions, 0 deletions

diff --git a/gdb/mac-xdep.c b/gdb/mac-xdep.c
new file mode 100644
index 0000000000..93fd0548fb
--- /dev/null
+++ b/gdb/mac-xdep.c
@@ -0,0 +1,630 @@
+/* Top level support for Mac interface to GDB, the GNU debugger.
+   Copyright 1994 Free Software Foundation, Inc.
+   Contributed by Cygnus Support.  Written by Stan Shebs for Cygnus.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#include "defs.h"
+
+#include <Values.h>
+#include <Types.h>
+#include <Resources.h>
+#include <QuickDraw.h>
+#include <Fonts.h>
+#include <Events.h>
+#include <Windows.h>
+#include <Menus.h>
+#include <TextEdit.h>
+#include <Dialogs.h>
+#include <Desk.h>
+#include <ToolUtils.h>
+#include <Memory.h>
+#include <SegLoad.h>
+#include <Files.h>
+#include <Folders.h>
+#include <OSUtils.h>
+#include <OSEvents.h>
+#include <DiskInit.h>
+#include <Packages.h>
+#include <Traps.h>
+#include <Lists.h>
+#include <GestaltEqu.h>
+#include <PPCToolbox.h>
+#include <AppleEvents.h>
+#include <StandardFile.h>
+#include <Sound.h>
+
+#ifdef MPW
+#define QD(whatever) (qd.##whatever)
+#define QDPat(whatever) (&(qd.##whatever))
+#endif
+
+#ifdef THINK_C
+#define QD(whatever) (whatever)
+#endif
+
+#define p2c(pstr,cbuf)  \
+  strncpy(cbuf, ((char *) (pstr) + 1), pstr[0]);  \
+  cbuf[pstr[0]] = '\0';
+
+#define pascalify(STR) \
+  sprintf(tmpbuf, " %s", STR);  \
+  tmpbuf[0] = strlen(STR);
+
+#include "gdbcmd.h"
+#include "call-cmds.h"
+#include "symtab.h"
+#include "inferior.h"
+#include "signals.h"
+#include "target.h"
+#include "breakpoint.h"
+#include "gdbtypes.h"
+#include "expression.h"
+#include "language.h"
+#include "terminal.h" /* For job_control.  */
+
+#include "mac-defs.h"
+
+int useWNE;
+
+int hasColorQD;
+
+int inbackground;
+
+Rect dragrect = { -32000, -32000, 32000, 32000 };
+Rect sizerect;
+
+int sbarwid = 15;
+
+/* Globals for the console window. */
+
+WindowPtr console_window;
+
+ControlHandle console_v_scrollbar;
+
+Rect console_v_scroll_rect;
+
+TEHandle console_text;
+
+Rect console_text_rect;
+
+mac_init ()
+{
+  SysEnvRec se;
+  int eventloopdone = 0;
+  Boolean gotevent;
+  Point mouse;
+  EventRecord event;
+  WindowPtr win;
+  RgnHandle cursorRgn;
+  int i;
+  Handle menubar;
+  MenuHandle menu;
+
+  /* Do the standard Mac environment setup. */
+  InitGraf (&QD (thePort));
+  InitFonts ();
+  FlushEvents (everyEvent, 0);
+  InitWindows ();
+  InitMenus ();
+  TEInit ();
+  InitDialogs (NULL);
+  InitCursor ();
+
+  /* Color Quickdraw is different from Classic QD. */
+  SysEnvirons(2, &se);
+  hasColorQD = se.hasColorQD;
+
+  sizerect.top = 50;
+  sizerect.left = 50;
+  sizerect.bottom = 1000;
+  sizerect.right  = 1000;
+#if 0
+  sizerect.bottom = screenBits.bounds.bottom - screenBits.bounds.top;
+  sizerect.right  = screenBits.bounds.right  - screenBits.bounds.left;
+#endif
+
+  /* Set up the menus. */
+  menubar = GetNewMBar (mbMain);
+  SetMenuBar (menubar);
+  /* Add the DAs etc as usual. */
+  menu = GetMHandle (mApple);
+  if (menu != nil) {
+    AddResMenu (menu, 'DRVR');
+  }
+  DrawMenuBar ();
+
+  /* Create the main window we're going to play in. */
+  if (hasColorQD)
+    console_window = GetNewCWindow (wConsole, NULL, (WindowPtr) -1L);
+  else
+    console_window = GetNewWindow (wConsole, NULL, (WindowPtr) -1L);
+
+  if (1) DebugStr("\pnear beginning");
+  SetPort (console_window);
+  console_text_rect = console_window->portRect;
+  console_text_rect.bottom -= sbarwid - 1;
+  console_text_rect.right -= sbarwid - 1;
+  console_text = TENew (&console_text_rect, &console_text_rect);
+  TESetSelect (0, 32767, console_text);
+  TEDelete (console_text);
+  TEInsert ("(gdb)", strlen("(gdb)"), console_text);
+
+  console_v_scroll_rect = console_window->portRect;
+  console_v_scroll_rect.bottom -= sbarwid - 1;
+  console_v_scroll_rect.left = console_v_scroll_rect.right - sbarwid;
+  console_v_scrollbar =
+    NewControl (console_window, &console_v_scroll_rect,
+		"\p", 1, 0, 0, 0, scrollBarProc, 0L);
+
+  ShowWindow (console_window);
+  SelectWindow (console_window);
+/*  force_update (console_window);  */
+
+  return 1;
+}
+
+mac_command_loop()
+{
+  SysEnvRec se;
+  int eventloopdone = 0;
+  Boolean gotevent;
+  Point mouse;
+  EventRecord event;
+  WindowPtr win;
+  RgnHandle cursorRgn;
+  int i;
+  Handle menubar;
+  MenuHandle menu;
+
+  /* Figure out if the WaitNextEvent Trap is available. */
+  useWNE =
+    (NGetTrapAddress (0x60, ToolTrap) != NGetTrapAddress (0x9f, ToolTrap));
+  /* Pass WNE an empty region the 1st time thru. */
+  cursorRgn = NewRgn ();
+  /* Go into the main event-handling loop. */
+  while (!eventloopdone)
+    {
+      /* Use WaitNextEvent if it is available, otherwise GetNextEvent. */
+      if (useWNE)
+	{
+	  get_global_mouse (&mouse);
+	  adjust_cursor (mouse, cursorRgn);
+	  gotevent = WaitNextEvent (everyEvent, &event, 0L, cursorRgn);
+	}
+      else
+	{
+	  SystemTask ();
+	  gotevent = GetNextEvent (everyEvent, &event);
+	}
+      /* First decide if the event is for a dialog or is just any old event. */
+      if (FrontWindow () != nil && IsDialogEvent (&event))
+	{
+	  short itemhit;
+	  DialogPtr dialog;
+      
+	  /* Handle all the modeless dialogs here. */
+	  if (DialogSelect (&event, &dialog, &itemhit))
+	    {
+	    }
+	}
+      else if (gotevent)
+	{
+	  /* Make sure we have the right cursor before handling the event. */
+	  adjust_cursor (event.where, cursorRgn);
+	  do_event (&event);
+	}
+    }
+}
+
+get_global_mouse (mouse)
+Point *mouse;
+{
+  EventRecord evt;
+	
+  OSEventAvail (0, &evt);
+  *mouse = evt.where;
+}
+
+adjust_cursor (mouse, region)
+Point mouse;
+RgnHandle region;
+{
+}
+
+/* Decipher an event, maybe do something with it. */
+
+do_event (evt)
+EventRecord *evt;
+{
+  short part, err, rslt = 0;
+  WindowPtr win;
+  Boolean hit;
+  char key;
+  Point pnt;
+
+  switch (evt->what)
+    {
+    case mouseDown:
+      /* See if the click happened in a special part of the screen. */
+      part = FindWindow (evt->where, &win);
+      switch (part)
+	{
+	case inMenuBar:
+	  adjust_menus ();
+	  do_menu_command (MenuSelect (evt->where));
+	  break;
+	case inSysWindow:
+	  SystemClick (evt, win);
+	  break;
+	case inContent:
+	  if (win != FrontWindow ())
+	    {
+	      /* Bring the clicked-on window to the front. */
+	      SelectWindow (win);
+	      /* Fix the menu to match the new front window. */
+	      adjust_menus ();
+	      /* We always want to discard the event now, since clicks in a
+		 windows are often irreversible actions. */
+	    } else
+	      /* Mouse clicks in the front window do something useful. */
+	      do_mouse_down (win, evt);
+	  break;
+	case inDrag:
+	  /* Standard drag behavior, no tricks necessary. */
+	  DragWindow (win, evt->where, &dragrect);
+	  break;
+	case inGrow:
+	  grow_window (win, evt->where);
+	  break;
+	case inZoomIn:
+	case inZoomOut:
+	  zoom_window (win, evt->where, part);
+	  break;
+	case inGoAway:
+	  close_window (win);
+	  break;
+	}
+      break;
+    case keyDown:
+    case autoKey:
+      key = evt->message & charCodeMask;
+      /* Check for menukey equivalents. */
+      if (evt->modifiers & cmdKey)
+	{
+	  if (evt->what == keyDown)
+	    {
+	      adjust_menus ();
+	      do_menu_command (MenuKey (key));
+	    }
+	}
+      else
+	{
+	  if (evt->what == keyDown)
+	    {
+	      /* Random keypress, interpret it. */
+	      do_keyboard_command (key);
+	    }
+	}
+      break;
+    case activateEvt:
+      activate_window ((WindowPtr) evt->message, evt->modifiers & activeFlag);
+      break;
+    case updateEvt:
+      update_window ((WindowPtr) evt->message);
+      break;
+    case diskEvt:
+      /* Call DIBadMount in response to a diskEvt, so that the user can format
+	 a floppy. (from DTS Sample) */
+      if (HiWord (evt->message) != noErr)
+	{
+	  SetPt (&pnt, 50, 50);
+	  err = DIBadMount (pnt, evt->message);
+	}
+      break;
+    case app4Evt:
+      /* Grab only a single byte. */
+      switch ((evt->message >> 24) & 0xFF)
+	{
+	case 0xfa:
+	  break;
+	case 1:
+	  inbackground = !(evt->message & 1);
+	  activate_window (FrontWindow (), !inbackground);
+	  break;
+	}
+      break;
+    case kHighLevelEvent:
+      AEProcessAppleEvent (evt);
+      break;
+    case nullEvent:
+      rslt = 1;
+      break;
+    default:
+      break;
+    }
+  return rslt;
+}
+
+grow_window (win, where)
+WindowPtr win;
+Point where;
+{
+  long winsize;
+  int h, v;
+  GrafPtr oldport;
+
+  winsize = GrowWindow (win, where, &sizerect);
+  if (winsize != 0)
+    {
+      GetPort (&oldport);
+      SetPort (win);
+      EraseRect (&win->portRect);
+      h = LoWord (winsize);
+      v = HiWord (winsize);
+      SizeWindow (win, h, v, 1);
+      if (win == console_window)
+	{
+	  MoveControl(console_v_scrollbar, h - sbarwid, 0);
+	  SizeControl(console_v_scrollbar, sbarwid + 1, v - sbarwid + 1);
+	}
+      InvalRect (&win->portRect);
+      SetPort (oldport);
+    }
+}
+
+zoom_window (win, where, part)
+WindowPtr win;
+Point where;
+short part;
+{
+}
+
+close_window (win)
+WindowPtr win;
+{
+}
+
+do_mouse_down (win, event)
+WindowPtr win;
+EventRecord *event;
+{
+  short part;
+  Point mouse;
+  ControlHandle control;
+
+  if (1 /*is_app_window(win)*/)
+    {
+      SetPort (win);
+      mouse = event->where;
+      GlobalToLocal (&mouse);
+      part = FindControl(mouse, win, &control);
+      if (control == console_v_scrollbar)
+	{
+	  SysBeep(20);
+	}
+      else
+	{
+	  TEClick (mouse, 0, console_text);
+	}
+    }
+}
+
+activate_window (win, activate)
+WindowPtr win;
+int activate;
+{
+  if (win == nil) return;
+  /* It's convenient to make the activated window also be the
+     current GrafPort. */
+  if (activate)
+    SetPort(win);
+  /* Activate the console window's scrollbar. */
+  if (win == console_window)
+    HiliteControl (console_v_scrollbar, (activate ? 0 : 255));
+}
+
+update_window (win)
+WindowPtr win;
+{
+  int controls = 1, growbox = 0;
+  GrafPtr oldport;
+
+  /* Set the updating window to be the current grafport. */
+  GetPort (&oldport);
+  SetPort (win);
+/*  recalc_depths();  */
+  BeginUpdate (win);
+  if (win == console_window)
+    {
+      draw_console ();
+      controls = 1;
+      growbox = 1;
+    }
+  if (controls)
+    UpdateControls (win, win->visRgn);
+  if (growbox)
+    DrawGrowIcon (win);
+  EndUpdate (win);
+  SetPort (oldport);
+}
+
+adjust_menus ()
+{
+}
+
+do_menu_command (which)
+long which;
+{
+  short menuid, menuitem;
+  short itemHit;
+  Str255 daname;
+  short daRefNum;
+  Boolean handledbyda;
+  WindowPtr win;
+  short ditem;
+  int i;
+
+  menuid = HiWord (which);
+  menuitem = LoWord (which);
+  switch (menuid)
+    {
+    case mApple:
+      switch (menuitem)
+	{
+	case miAbout:
+/*	  Alert(aAbout, nil); */
+	  break;
+	default:
+	  GetItem (GetMHandle (mApple), menuitem, daname);
+	  daRefNum = OpenDeskAcc (daname);
+	}
+      break;
+    case mFile:
+      switch (menuitem)
+	{
+	case miFileQuit:
+	  ExitToShell ();
+	  break;
+	}
+      break;
+    case mEdit:
+      /* handledbyda = SystemEdit(menuitem-1); */
+      switch (menuitem)
+	{
+	case miEditCut:
+	  break;
+	case miEditCopy:
+	  break;
+	case miEditPaste:
+	  break;
+	case miEditClear:
+	  break;
+	}
+      break;
+    }
+  HiliteMenu (0);
+}
+
+char commandbuf[1000];
+
+do_keyboard_command (key)
+char key;
+{
+  int startpos, endpos, i;
+  char buf[10], *text_str, *command;
+  CharsHandle text;
+
+  if (key == '\015' || key == '\003')
+    {
+      /* (should) Interpret the line as a command. */
+      text = TEGetText (console_text);
+      HLock ((Handle) text);
+      startpos = (*console_text)->selStart;
+      endpos = (*console_text)->selEnd;
+      if (startpos != endpos)
+	{
+	  strncpy (commandbuf + 1, *text + startpos, endpos - startpos);
+	  commandbuf[1 + endpos - startpos] = 0;
+	  command = commandbuf + 1;
+	}
+      else
+	{
+	  for (i = startpos; i > 0; --i)
+	    {
+	      strncpy (buf, *text + i, 5);
+	      buf[5] = 0;
+	      if (strncmp (buf, "(gdb)") == 0)
+		break;
+	    }
+	  if (i > 0)
+	    {
+	      strncpy (commandbuf + 1, *text + i + 5, startpos - i);
+	      commandbuf[1 + startpos - i] = '\0';
+	    }
+	  else
+	    {
+	      SysBeep (20);
+	      commandbuf[1] = '\0';
+	    }
+	  command = commandbuf + 1;
+	}
+      HUnlock ((Handle) text);
+      commandbuf[0] = strlen(command);
+      DebugStr(commandbuf);
+
+      /* Insert a newline and redraw before doing the command. */
+      buf[0] = '\015';
+      TEInsert (buf, 1, console_text);
+      TESetSelect (100000, 100000, console_text);
+      draw_console ();
+
+      execute_command (commandbuf, 0);
+      bpstat_do_actions (&stop_bpstat);
+    }
+  else if (0 /* editing chars... */)
+    {
+    }
+  else
+    {
+      /* A self-inserting character. */
+      buf[0] = key;
+      TEInsert (buf, 1, console_text);
+      TESetSelect (100000, 100000, console_text);
+      draw_console ();
+    }
+}
+
+draw_console ()
+{
+  GrafPtr oldport;
+
+  GetPort (&oldport);
+  SetPort (console_window);
+  TEUpdate (&(console_window->portRect), console_text);
+  SetPort (oldport);
+/*	adjust_help_scrollbar();  */
+}
+
+/* Cause an update of a window's entire contents. */
+
+force_update (win)
+WindowPtr win;
+{
+  GrafPtr oldport;
+
+  if (win == nil) return;
+  GetPort (&oldport);
+  SetPort (win);
+  EraseRect (&win->portRect);
+  InvalRect (&win->portRect);
+  SetPort (oldport);
+}
+
+adjust_console_scrollbars ()
+{
+  int lines, newmax, value;
+
+  lines = (*console_text)->nLines;
+  newmax = lines - (((*console_text)->viewRect.bottom - (*console_text)->viewRect.top)
+		    / (*console_text)->lineHeight);
+  if (newmax < 0) newmax = 0;
+  SetCtlMax(console_v_scrollbar, newmax);
+  value = ((*console_text)->viewRect.top - (*console_text)->destRect.top)
+    / (*console_text)->lineHeight;
+  SetCtlValue(console_v_scrollbar, value);
+}