[qwaq] Create a debugger class

Each debugger manages a single target.

ruamoko/qwaq/Makefile.am

@@ -26,6 +26,7 @@ SUFFIXES=.o .r
 qwaq_app_dat_src= \
 	qwaq-app.r \
 	qwaq-button.r \
+	qwaq-debugger.r \
 	qwaq-draw.r \
 	qwaq-editbuffer.r \
 	qwaq-editor.r \

ruamoko/qwaq/qwaq-debug.c

@@ -145,7 +145,9 @@ static void
 qwaq_target_clear (progs_t *pr, void *data)
 {
 	qwaq_target_t *target = pr->debug_data;
-	target_free (target->debugger, target);
+	if (target) {
+		target_free (target->debugger, target);
+	}
 }
 
 //FIXME need a better way to get this from one thread to the others
@@ -274,10 +276,12 @@ qdb_get_state (progs_t *pr)
 
 	lineno = PR_Find_Lineno (tpr, staddr);
 	if (lineno) {
-		f = PR_Get_Lineno_Func (pr, lineno);
+		f = PR_Get_Lineno_Func (tpr, lineno);
-		file = pr->pr_functions[f->function].s_file;
+		//FIXME file is a permanent string. dynamic would be better
+		//but they're not merged (and would need refcounting)
+		file = PR_SetString (pr, PR_Get_Source_File (tpr, lineno));
 		func = f->function;
-		line = PR_Get_Lineno_Line (pr, lineno);
+		line = PR_Get_Lineno_Line (tpr, lineno);
 		line += f->source_line;
 	}
 

ruamoko/qwaq/qwaq-debug.h

@@ -15,17 +15,34 @@ typedef enum {
 #define umax 0x7fffffff
 #endif
 
-#else//GCC
+typedef string string_t;
+
 #endif
 
 typedef struct qdb_state_s {
 	unsigned    staddr;
 	unsigned    func;
-	unsigned    file;
+	string_t    file;
 	unsigned    line;
 } qdb_state_t;
 
+#ifdef __QFCC__
+
+typedef struct qdb_target_s { int handle; } qdb_target_t;
+
+@extern void qdb_set_trace (qdb_target_t target, int state);
+@extern int qdb_set_breakpoint (qdb_target_t target, unsigned staddr);
+@extern int qdb_clear_breakpoint (qdb_target_t target, unsigned staddr);
+@extern int qdb_set_watchpoint (qdb_target_t target, unsigned offset);
+@extern int qdb_clear_watchpoint (qdb_target_t target);
+@extern int qdb_continue (qdb_target_t target);
+@extern qdb_state_t qdb_get_state (qdb_target_t target);
+
+#else//GCC
+
 void QWAQ_Debug_Init (progs_t *pr);
 void QWAQ_DebugTarget_Init (progs_t *pr);
 
+#endif
+
 #endif//__qwaq_debug_h

ruamoko/qwaq/qwaq-debugger.h

@@ -0,0 +1,25 @@
+#ifndef __qwaq_debugger_h
+#define __qwaq_debugger_h
+
+#include <Object.h>
+
+#include "qwaq-debug.h"
+
+@class ProxyView;
+@class Editor;
+@class Window;
+@class Array;
+
+@interface Debugger : Object
+{
+	Window     *source_window;
+	ProxyView  *file_proxy;
+	Array      *files;
+	Editor     *current_file;
+	qdb_target_t debug_target;
+}
+-initWithTarget:(qdb_target_t) target;
+-handleDebugEvent;
+@end
+
+#endif//__qwaq_debugger_h

ruamoko/qwaq/qwaq-debugger.r

@@ -0,0 +1,68 @@
+#include <Array.h>
+
+#include "qwaq-curses.h"
+#include "qwaq-debugger.h"
+#include "qwaq-editor.h"
+#include "qwaq-proxyview.h"
+#include "qwaq-window.h"
+
+@implementation Debugger
+
+-initWithTarget:(qdb_target_t) target
+{
+	if (!(self = [super init])) {
+		return nil;
+	}
+	debug_target = target;
+
+	files = [[Array array] retain];
+	//FIXME need a window manager
+	source_window = [[Window alloc] initWithRect: getwrect (stdscr)];
+
+	return self;
+}
+
+-(Editor *) find_file:(string) filename
+{
+	Editor     *file;
+	for (int i = [files count]; i-- > 0; ) {
+		file = [files objectAtIndex: i];
+		if ([file filename] == filename) {
+			return file;
+		}
+	}
+	Rect rect = {{1, 1}, [source_window size]};
+	rect.extent.width -= 2;
+	rect.extent.height -= 2;
+	file = [[Editor alloc] initWithRect: rect file: filename];
+	[files addObject: file];
+	return file;
+}
+
+-(void) setup
+{
+	qdb_state_t state = qdb_get_state (debug_target);
+
+	current_file = [self find_file: state.file];
+	file_proxy = [[ProxyView alloc] initWithView: current_file];
+	//FIXME id<View>?
+	[source_window insertSelected: (View *) file_proxy];
+}
+
+-handleDebugEvent
+{
+	if (!file_proxy) {
+		[self setup];
+	}
+	return self;
+}
+
+@end
+
+void qdb_set_trace (qdb_target_t target, int state) = #0;
+int qdb_set_breakpoint (qdb_target_t target, unsigned staddr) = #0;
+int qdb_clear_breakpoint (qdb_target_t target, unsigned staddr) = #0;
+int qdb_set_watchpoint (qdb_target_t target, unsigned offset) = #0;
+int qdb_clear_watchpoint (qdb_target_t target) = #0;
+int qdb_continue (qdb_target_t target) = #0;
+qdb_state_t qdb_get_state (qdb_target_t target) = #0;

ruamoko/qwaq/qwaq-editor.h

@@ -18,8 +18,10 @@
 	unsigned    old_cind;		// previous character
 	Point       cursor;
 	unsigned    line_count;
+	string      filename;
 }
 -initWithRect:(Rect) rect file:(string) filename;
+-(string)filename;
 -scrollUp:(unsigned) count;
 -scrollDown:(unsigned) count;
 -scrollLeft:(unsigned) count;

ruamoko/qwaq/qwaq-editor.r

@@ -9,6 +9,7 @@
 	if (!(self = [super initWithRect: rect])) {
 		return nil;
 	}
+	self.filename = filename;
 	buffer = [[EditBuffer alloc] initWithFile: filename];
 	line_count = [buffer countLines: {0, [buffer textSize]}];
 	linebuffer = [DrawBuffer buffer: { xlen, 1 }];
@@ -17,6 +18,11 @@
 	return self;
 }
 
+-(string)filename
+{
+	return filename;
+}
+
 -draw
 {
 	[super draw];