lxdream.org :: lxdream/src/gtkui/gtk_debug.c r1122:93d07b7d0ac6

tree revision 1302:765e514f99a6 default tip

filename	src/gtkui/gtk_debug.c
changeset	1122:93d07b7d0ac6
prev	1091:186558374345
author	nkeynes
date	Fri May 29 18:47:05 2015 +1000 (8 years ago)
permissions	-rw-r--r--
last change	Fix test case

view

     1 /**

     2  * $Id$

     3  * This file is responsible for the main debugger gui frame.

     4  *

     5  * Copyright (c) 2005 Nathan Keynes.

     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 #include <stdlib.h>

    18 #include <stdarg.h>

    19 #include <stdio.h>

    20 #include <string.h>

    21 #include <math.h>

    22 #include <gdk/gdkkeysyms.h>

    23 #include "mem.h"

    24 #include "cpu.h"

    25 #include "dreamcast.h"

    26 #include "gtkui/gtkui.h"

    27 #include "sh4/sh4.h"

    28 #include "aica/armdasm.h"

    30 GdkColor *msg_colors[] = { &gui_colour_error, &gui_colour_error, &gui_colour_warn,

    31         &gui_colour_normal,&gui_colour_debug, &gui_colour_trace };

    33 const cpu_desc_t cpu_list[4] = { &sh4_cpu_desc, &arm_cpu_desc, &armt_cpu_desc, NULL };

    35 void init_register_list( debug_window_t data );

    36 uint32_t row_to_address( debug_window_t data, int row );

    37 int address_to_row( debug_window_t data, uint32_t address );

    38 void set_disassembly_pc( debug_window_t data, unsigned int pc, gboolean select );

    39 void set_disassembly_region( debug_window_t data, unsigned int page );

    40 void set_disassembly_cpu( debug_window_t data, const gchar *cpu );

    42 void on_mode_field_changed ( GtkEditable *editable, gpointer user_data);

    43 gboolean on_page_field_key_press_event( GtkWidget * widget, GdkEventKey *event,

    44                                         gpointer user_data);

    45 void on_jump_pc_btn_clicked( GtkButton *button, gpointer user_data);

    46 void on_disasm_list_select_row (GtkCList *clist, gint row, gint column,

    47                                 GdkEvent *event, gpointer user_data);

    48 void on_disasm_list_unselect_row (GtkCList *clist, gint row, gint column,

    49                                   GdkEvent *event, gpointer user_data);

    50 gboolean on_debug_delete_event(GtkWidget *widget, GdkEvent event, gpointer user_data);

    52 struct debug_window_info {

    53     int disasm_from;

    54     int disasm_to;

    55     int disasm_pc;

    56     const struct cpu_desc_struct *cpu;

    57     const cpu_desc_t *cpu_list;

    58     GtkCList *regs_list;

    59     GtkCList *disasm_list;

    60     GtkEntry *page_field;

    61     GtkWidget *window;

    62     GtkWidget *statusbar;

    63     char saved_regs[0];

    64 };

    66 debug_window_t debug_window_new( const gchar *title, GtkWidget *menubar,

    67                                  GtkWidget *toolbar, GtkAccelGroup *accel_group )

    68 {

    69     debug_window_t data = g_malloc0( sizeof(struct debug_window_info) + cpu_list[0]->regs_size );

    70     GtkWidget *vbox;

    72     data->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    73     gtk_window_set_default_size (GTK_WINDOW (data->window), 700, 480);

    74     gtk_window_set_title( GTK_WINDOW(data->window), title );

    75     gtk_window_add_accel_group (GTK_WINDOW (data->window), accel_group);

    77     gtk_toolbar_set_style( GTK_TOOLBAR(toolbar), GTK_TOOLBAR_ICONS );

    79     data->statusbar = gtk_statusbar_new();

    81     GtkWidget *hpaned = gtk_hpaned_new ();

    82     gtk_paned_set_position (GTK_PANED (hpaned), 520);

    84     GtkWidget *disasm_box = gtk_vbox_new(FALSE,0);

    85     gtk_paned_pack1 (GTK_PANED (hpaned), disasm_box, TRUE, TRUE);

    87     GtkWidget *hbox1 = gtk_hbox_new (FALSE, 0);

    88     gtk_box_pack_start (GTK_BOX (disasm_box), hbox1, FALSE, FALSE, 3);

    89     gtk_box_pack_start (GTK_BOX (hbox1), gtk_label_new (_("Page")), FALSE, FALSE, 4);

    91     data->page_field = GTK_ENTRY(gtk_entry_new ());

    92     gtk_box_pack_start (GTK_BOX (hbox1), GTK_WIDGET(data->page_field), FALSE, TRUE, 0);

    94     GtkWidget *jump_pc_btn = gtk_button_new_with_mnemonic (_(" Jump to PC "));

    95     gtk_box_pack_start (GTK_BOX (hbox1), jump_pc_btn, FALSE, FALSE, 4);

    97     gtk_box_pack_start (GTK_BOX (hbox1), gtk_label_new(_("Mode")), FALSE, FALSE, 5);

    99     GtkWidget *mode_box = gtk_combo_new ();

   100     gtk_box_pack_start (GTK_BOX (hbox1), mode_box, FALSE, FALSE, 0);

   101     GList *mode_box_items = NULL;

   102     mode_box_items = g_list_append (mode_box_items, (gpointer) _("SH4"));

   103     mode_box_items = g_list_append (mode_box_items, (gpointer) _("ARM7"));

   104     mode_box_items = g_list_append (mode_box_items, (gpointer) _("ARM7T"));

   105     gtk_combo_set_popdown_strings (GTK_COMBO (mode_box), mode_box_items);

   106     g_list_free (mode_box_items);

   108     GtkWidget *mode_field = GTK_COMBO (mode_box)->entry;

   109     gtk_editable_set_editable (GTK_EDITABLE (mode_field), FALSE);

   111     GtkWidget *disasm_scroll = gtk_scrolled_window_new (NULL, NULL);

   112     gtk_box_pack_start (GTK_BOX (disasm_box), disasm_scroll, TRUE, TRUE, 0);

   113     gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (disasm_scroll), GTK_SHADOW_IN);

   114     data->disasm_list = GTK_CLIST(gtk_clist_new (4));

   115     gtk_clist_set_column_width (GTK_CLIST (data->disasm_list), 0, 80);

   116     gtk_clist_set_column_width (GTK_CLIST (data->disasm_list), 2, 80);

   117     gtk_clist_set_column_width (GTK_CLIST (data->disasm_list), 3, 80);

   118     gtk_clist_set_column_width( data->disasm_list, 1, 16 );

   119     gtk_clist_column_titles_hide (GTK_CLIST (data->disasm_list));

   120     gtk_container_add (GTK_CONTAINER (disasm_scroll), GTK_WIDGET(data->disasm_list));

   122     GtkWidget *reg_scroll = gtk_scrolled_window_new (NULL, NULL);

   123     gtk_paned_pack2 (GTK_PANED (hpaned), reg_scroll, FALSE, TRUE);

   124     gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (reg_scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

   125     gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (reg_scroll), GTK_SHADOW_IN);

   127     data->regs_list = GTK_CLIST(gtk_clist_new (2));

   128     gtk_container_add (GTK_CONTAINER (reg_scroll), GTK_WIDGET(data->regs_list));

   129     gtk_clist_set_column_width (GTK_CLIST (data->regs_list), 0, 60);

   130     gtk_clist_set_column_width (GTK_CLIST (data->regs_list), 1, 70);

   131     gtk_clist_column_titles_hide (GTK_CLIST (data->regs_list));

   132     gtk_widget_modify_font( GTK_WIDGET(data->regs_list), gui_fixed_font );

   134     vbox = gtk_vbox_new(FALSE, 0);

   135     gtk_container_add( GTK_CONTAINER(data->window), vbox );

   136     gtk_box_pack_start( GTK_BOX(vbox), menubar, FALSE, FALSE, 0 );

   137     gtk_box_pack_start( GTK_BOX(vbox), toolbar, FALSE, FALSE, 0 );

   138     gtk_box_pack_start( GTK_BOX(vbox), hpaned, TRUE, TRUE, 0 );

   139     gtk_box_pack_start( GTK_BOX(vbox), data->statusbar, FALSE, FALSE, 0 );

   141     g_signal_connect ((gpointer) data->page_field, "key_press_event",

   142                       G_CALLBACK (on_page_field_key_press_event),

   143                       data);

   144     g_signal_connect ((gpointer) jump_pc_btn, "clicked",

   145                       G_CALLBACK (on_jump_pc_btn_clicked),

   146                       data);

   147     g_signal_connect ((gpointer) mode_field, "changed",

   148                       G_CALLBACK (on_mode_field_changed),

   149                       data);

   150     g_signal_connect ((gpointer) data->disasm_list, "select_row",

   151                       G_CALLBACK (on_disasm_list_select_row),

   152                       data);

   153     g_signal_connect ((gpointer) data->disasm_list, "unselect_row",

   154                       G_CALLBACK (on_disasm_list_unselect_row),

   155                       data);

   156     g_signal_connect ((gpointer) data->window, "delete_event",

   157                       G_CALLBACK (on_debug_delete_event),

   158                       data);

   160     data->disasm_from = -1;

   161     data->disasm_to = -1;

   162     data->disasm_pc = -1;

   163     data->cpu = cpu_list[0];

   164     data->cpu_list = cpu_list;

   166     init_register_list( data );

   167     gtk_object_set_data( GTK_OBJECT(data->window), "debug_data", data );

   168     set_disassembly_pc( data, *data->cpu->pc, FALSE );

   169     debug_window_set_running( data, FALSE );

   171     gtk_widget_show_all( data->window );

   172     return data;

   173 }

   175 void debug_window_show( debug_window_t data, gboolean show )

   176 {

   177     if( show ) {

   178         gtk_widget_show( data->window );

   179     } else {

   180         gtk_widget_hide( data->window );

   181     }

   182 }

   184 int debug_window_get_selected_row( debug_window_t data )

   185 {

   186     if( data->disasm_list->selection == NULL ) {

   187         return -1;

   188     } else {

   189         return GPOINTER_TO_INT(data->disasm_list->selection->data);

   190     }

   191 }

   193 void init_register_list( debug_window_t data )

   194 {

   195     int i;

   196     char buf[20];

   197     char *arr[2];

   199     gtk_clist_clear( data->regs_list );

   200     arr[1] = buf;

   201     for( i=0; data->cpu->regs_info[i].name != NULL; i++ ) {

   202         arr[0] = data->cpu->regs_info[i].name;

   203         void *value = data->cpu->get_register(i);

   204         if( value != NULL ) {

   205             if( data->cpu->regs_info->type == REG_TYPE_INT ) {

   206                 sprintf( buf, "%08X", *((uint32_t *)value) );

   207                 gtk_clist_append( data->regs_list, arr );

   208             } else if( data->cpu->regs_info->type == REG_TYPE_FLOAT ) {

   209                 sprintf( buf, "%f", *((float *)value) );

   210                 gtk_clist_append( data->regs_list, arr );

   211             }

   212         }

   213     }

   214 }

   216 /*

   217  * Check for changed registers and update the display

   218  */

   219 void debug_window_update( debug_window_t data )

   220 {

   221     int i;

   222     int posn = 0;

   223     for( i=0; data->cpu->regs_info[i].name != NULL; i++ ) {

   224         void *value = data->cpu->get_register(i);

   225         if( value != NULL ) {

   226             if( data->cpu->regs_info[i].type == REG_TYPE_INT ) {

   227                 /* Yes this _is_ probably fairly evil */

   228                 if( *((uint32_t *)value) !=

   229                     *((uint32_t *)((char *)data->saved_regs + ((char *)value - (char *)data->cpu->regs))) ) {

   230                     char buf[20];

   231                     sprintf( buf, "%08X", *((uint32_t *)value) );

   232                     gtk_clist_set_text( data->regs_list, posn, 1, buf );

   233                     gtk_clist_set_foreground( data->regs_list, posn, &gui_colour_changed );

   234                 } else {

   235                     gtk_clist_set_foreground( data->regs_list, posn, &gui_colour_normal );

   236                 }

   237                 posn++;

   238             } else {

   239                 if( *((float *)value) !=

   240                     *((float *)((char *)data->saved_regs + ((char *)value - (char *)data->cpu->regs))) ) {

   241                     char buf[20];

   242                     sprintf( buf, "%f", *((float *)value) );

   243                     gtk_clist_set_text( data->regs_list, i, posn, buf );

   244                     gtk_clist_set_foreground( data->regs_list, posn, &gui_colour_changed );

   245                 } else {

   246                     gtk_clist_set_foreground( data->regs_list, posn, &gui_colour_normal );

   247                 }

   248                 posn++;

   249             }

   250         }

   251     }

   253     set_disassembly_pc( data, *data->cpu->pc, TRUE );

   254     memcpy( data->saved_regs, data->cpu->regs, data->cpu->regs_size );

   255 }

   257 void set_disassembly_region( debug_window_t data, unsigned int page )

   258 {

   259     uint32_t i, posn, next;

   260     char buf[80];

   261     char addr[10];

   262     char opcode[16] = "";

   263     char *arr[4] = { addr, " ", opcode, buf };

   264     unsigned int from = page & 0xFFFFF000;

   265     unsigned int to = from + 4096;

   267     gtk_clist_clear(data->disasm_list);

   269     sprintf( addr, "%08X", from );

   270     gtk_entry_set_text( data->page_field, addr );

   272     if( !data->cpu->is_valid_page_func( from ) ) {

   273         arr[3] = (char *)_("This page is currently unmapped");

   274         gtk_clist_append( data->disasm_list, arr );

   275         gtk_clist_set_foreground( data->disasm_list, 0, &gui_colour_error );

   276     } else {

   277         for( i=from; i<to; i = next ) {

   278             next = data->cpu->disasm_func( i, buf, sizeof(buf), opcode );

   279             sprintf( addr, "%08X", i );

   280             posn = gtk_clist_append( data->disasm_list, arr );

   281             if( buf[0] == '?' )

   282                 gtk_clist_set_foreground( data->disasm_list, posn, &gui_colour_warn );

   283             if( data->cpu->get_breakpoint != NULL ) {

   284                 int type = data->cpu->get_breakpoint( i );

   285                 switch(type) {

   286                 case BREAK_ONESHOT:

   287                     gtk_clist_set_background( data->disasm_list, posn, &gui_colour_temp_break );

   288                     break;

   289                 case BREAK_KEEP:

   290                     gtk_clist_set_background( data->disasm_list, posn, &gui_colour_break );

   291                     break;

   292                 }

   293             }

   294         }

   295         if( data->disasm_pc != -1 && data->disasm_pc >= from && data->disasm_pc < to )

   296             gtk_clist_set_foreground( data->disasm_list, address_to_row(data, data->disasm_pc),

   297                     &gui_colour_pc );

   298     }

   300     if( page != from ) { /* not a page boundary */

   301         gtk_clist_moveto( data->disasm_list, (page-from)>>1, 0, 0.5, 0.0 );

   302     }

   303     data->disasm_from = from;

   304     data->disasm_to = to;

   305 }

   307 void jump_to_disassembly( debug_window_t data, unsigned int addr, gboolean select )

   308 {

   309     int row;

   311     if( addr < data->disasm_from || addr >= data->disasm_to )

   312         set_disassembly_region(data,addr);

   314     row = address_to_row( data, addr );

   315     if(select) {

   316         gtk_clist_select_row( data->disasm_list, row, 0 );

   317     }

   318     if( gtk_clist_row_is_visible( data->disasm_list, row ) != GTK_VISIBILITY_FULL ){

   319         gtk_clist_moveto( data->disasm_list, row, 0, 0.5, 0.0 );

   320     }

   321 }

   323 void jump_to_pc( debug_window_t data, gboolean select )

   324 {

   325     jump_to_disassembly( data, *data->cpu->pc, select );

   326 }

   328 void set_disassembly_pc( debug_window_t data, unsigned int pc, gboolean select )

   329 {

   330     int row;

   332     jump_to_disassembly( data, pc, select );

   333     if( data->disasm_pc != -1 && data->disasm_pc >= data->disasm_from &&

   334             data->disasm_pc < data->disasm_to )

   335         gtk_clist_set_foreground( data->disasm_list,

   336                 (data->disasm_pc - data->disasm_from) / data->cpu->instr_size,

   337                 &gui_colour_normal );

   338     row = address_to_row( data, pc );

   339     gtk_clist_set_foreground( data->disasm_list, row, &gui_colour_pc );

   340     data->disasm_pc = pc;

   341 }

   343 void set_disassembly_cpu( debug_window_t data, const gchar *cpu )

   344 {

   345     int i;

   346     for( i=0; data->cpu_list[i] != NULL; i++ ) {

   347         if( strcmp( data->cpu_list[i]->name, cpu ) == 0 ) {

   348             if( data->cpu != data->cpu_list[i] ) {

   349                 data->cpu = data->cpu_list[i];

   350                 data->disasm_from = data->disasm_to = -1; /* Force reload */

   351                 set_disassembly_pc( data, *data->cpu->pc, FALSE );

   352                 init_register_list( data );

   353             }

   354             return;

   355         }

   356     }

   357 }

   359 void debug_window_toggle_breakpoint( debug_window_t data, int row )

   360 {

   361     uint32_t pc = row_to_address( data, row );

   362     int oldType = data->cpu->get_breakpoint( pc );

   363     if( oldType != BREAK_NONE ) {

   364         data->cpu->clear_breakpoint( pc, oldType );

   365         gtk_clist_set_background( data->disasm_list, row, &gui_colour_white );

   366     } else {

   367         data->cpu->set_breakpoint( pc, BREAK_KEEP );

   368         gtk_clist_set_background( data->disasm_list, row, &gui_colour_break );

   369     }

   370 }

   372 void debug_window_set_oneshot_breakpoint( debug_window_t data, int row )

   373 {

   374     uint32_t pc = row_to_address( data, row );

   375     data->cpu->clear_breakpoint( pc, BREAK_ONESHOT );

   376     data->cpu->set_breakpoint( pc, BREAK_ONESHOT );

   377     gtk_clist_set_background( data->disasm_list, row, &gui_colour_temp_break );

   378 }

   380 /**

   381  * Execute a single instruction using the current CPU mode.

   382  */

   383 void debug_window_single_step( debug_window_t data )

   384 {

   385     data->cpu->step_func();

   386     gtk_gui_update();

   387 }

   389 uint32_t row_to_address( debug_window_t data, int row ) {

   390     return data->cpu->instr_size * row + data->disasm_from;

   391 }

   393 int address_to_row( debug_window_t data, uint32_t address ) {

   394     if( data->disasm_from > address || data->disasm_to <= address )

   395         return -1;

   396     return (address - data->disasm_from) / data->cpu->instr_size;

   397 }

   399 debug_window_t get_debug_info( GtkWidget *widget ) {

   401     GtkWidget *win = gtk_widget_get_toplevel(widget);

   402     debug_window_t data = (debug_window_t)gtk_object_get_data( GTK_OBJECT(win), "debug_data" );

   403     return data;

   404 }

   406 void debug_window_set_running( debug_window_t data, gboolean isRunning )

   407 {

   408     if( data != NULL ) {

   409         gtk_gui_enable_action( "SingleStep", !isRunning );

   410         gtk_gui_enable_action( "RunTo", !isRunning && dreamcast_can_run() );

   411     }

   412 }

   414 void on_mode_field_changed ( GtkEditable *editable, gpointer user_data)

   415 {

   416     const gchar *text = gtk_entry_get_text( GTK_ENTRY(editable) );

   417     set_disassembly_cpu( gtk_gui_get_debugger(), text );

   418 }

   421 gboolean on_page_field_key_press_event( GtkWidget * widget, GdkEventKey *event,

   422                                         gpointer user_data)

   423 {

   424     if( event->keyval == GDK_Return || event->keyval == GDK_Linefeed ) {

   425         debug_window_t data = get_debug_info(widget);

   426         const gchar *text = gtk_entry_get_text( GTK_ENTRY(widget) );

   427         gchar *endptr;

   428         unsigned int val = strtoul( text, &endptr, 16 );

   429         if( text == endptr ) { /* invalid input */

   430             char buf[10];

   431             sprintf( buf, "%08X", row_to_address(data,0) );

   432             gtk_entry_set_text( GTK_ENTRY(widget), buf );

   433         } else {

   434             set_disassembly_region(data, val);

   435         }

   436     }

   437     return FALSE;

   438 }

   441 void on_jump_pc_btn_clicked( GtkButton *button, gpointer user_data)

   442 {

   443     debug_window_t data = get_debug_info( GTK_WIDGET(button) );

   444     jump_to_pc( data, TRUE );

   445 }

   447 void on_disasm_list_select_row (GtkCList *clist, gint row, gint column,

   448                                 GdkEvent *event, gpointer user_data)

   449 {

   450     gtk_gui_enable_action( "SetBreakpoint", TRUE );

   451     gtk_gui_enable_action( "RunTo", dreamcast_can_run() );

   452 }

   454 void on_disasm_list_unselect_row (GtkCList *clist, gint row, gint column,

   455                                   GdkEvent *event, gpointer user_data)

   456 {

   457     gtk_gui_enable_action( "SetBreakpoint", FALSE );

   458     gtk_gui_enable_action( "RunTo", FALSE );

   459 }

   461 gboolean on_debug_delete_event(GtkWidget *widget, GdkEvent event, gpointer user_data)

   462 {

   463     gtk_widget_hide( widget );

   464     return TRUE;

   465 }