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Successful test of basic debugger functions.

This commit is contained in:
Matthew Budd 2020-05-24 21:10:10 -04:00
parent 613dd479d4
commit 9f009a1850
4 changed files with 512 additions and 27 deletions
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2
SConstruct
View File

@ -186,7 +186,7 @@ else:
if env['OPENGL'] and conf.CheckLibWithHeader('GL', 'GL/gl.h', 'c', autoadd=1):
conf.env.Append(CCFLAGS = "-DOPENGL")
conf.env.Append(CPPDEFINES = ['PSS_STYLE=1'])
conf.env.Append(CPPDEFINES = ['PSS_STYLE=1',"FCEUDEF_DEBUGGER"])
env = conf.Finish()

4
src/debug.cpp
View File

@ -565,9 +565,9 @@ void BreakHit(int bp_num)
{
FCEUI_SetEmulationPaused(EMULATIONPAUSED_PAUSED); //mbg merge 7/19/06 changed to use EmulationPaused()
#ifdef WIN32
//#ifdef WIN32
FCEUD_DebugBreakpoint(bp_num);
#endif
//#endif
}
int StackAddrBackup;

527
src/drivers/sdl/debugger.cpp
View File

@ -25,6 +25,7 @@
#include "../../fds.h"
#include "../../cart.h"
#include "../../ines.h"
#include "../../asm.h"
#include "../../x6502.h"
#include "../common/configSys.h"
@ -88,6 +89,8 @@ struct debuggerWin_t
GtkWidget *sprite_radio_btn;
int dialog_op;
int bpEditIdx;
char displayROMoffsets;
debuggerWin_t(void)
{
@ -128,6 +131,8 @@ struct debuggerWin_t
P_Z_chkbox = NULL;
P_C_chkbox = NULL;
dialog_op = 0;
bpEditIdx = -1;
displayROMoffsets = 0;
}
~debuggerWin_t(void)
@ -138,10 +143,55 @@ struct debuggerWin_t
void bpListUpdate(void);
void updateViewPort(void);
void updateRegisterView(void);
void updateAssemblyView(void);
int get_bpList_selrow(void);
};
static std::list <debuggerWin_t*> debuggerWinList;
int debuggerWin_t::get_bpList_selrow(void)
{
int retval = -1, numListRows;
GList *selListRows, *tmpList;
GtkTreeModel *model = NULL;
GtkTreeSelection *treeSel;
treeSel =
gtk_tree_view_get_selection (GTK_TREE_VIEW(bp_tree) );
numListRows = gtk_tree_selection_count_selected_rows (treeSel);
if (numListRows == 0)
{
return retval;
}
//printf("Number of Rows Selected: %i\n", numListRows );
selListRows = gtk_tree_selection_get_selected_rows (treeSel, &model);
tmpList = selListRows;
while (tmpList)
{
int depth;
int *indexArray;
GtkTreePath *path = (GtkTreePath *) tmpList->data;
depth = gtk_tree_path_get_depth (path);
indexArray = gtk_tree_path_get_indices (path);
if (depth > 0)
{
retval = indexArray[0];
break;
}
tmpList = tmpList->next;
}
g_list_free_full (selListRows, (GDestroyNotify) gtk_tree_path_free);
return retval;
}
void debuggerWin_t::bpListUpdate(void)
{
@ -266,11 +316,191 @@ void debuggerWin_t::updateRegisterView(void)
gtk_text_buffer_set_text( stackTextBuf, stackLine.c_str(), -1 ) ;
// update counters
int64 counter_value = timestampbase + (uint64)timestamp - total_cycles_base;
if (counter_value < 0) // sanity check
{
ResetDebugStatisticsCounters();
counter_value = 0;
}
sprintf( stmp, "CPU Cycles: %llu", counter_value);
gtk_label_set_text( GTK_LABEL(cpu_label1), stmp );
//SetDlgItemText(hDebug, IDC_DEBUGGER_VAL_CYCLES_COUNT, str);
counter_value = timestampbase + (uint64)timestamp - delta_cycles_base;
if (counter_value < 0) // sanity check
{
ResetDebugStatisticsCounters();
counter_value = 0;
}
sprintf(stmp, "(+%llu)", counter_value);
gtk_label_set_text( GTK_LABEL(cpu_label2), stmp );
sprintf(stmp, "Instructions: %llu", total_instructions);
gtk_label_set_text( GTK_LABEL(instr_label1), stmp );
sprintf(stmp, "(+%llu)", delta_instructions);
gtk_label_set_text( GTK_LABEL(instr_label2), stmp );
}
// This function is for "smart" scrolling...
// it attempts to scroll up one line by a whole instruction
static int InstructionUp(int from)
{
int i = std::min(16, from), j;
while (i > 0)
{
j = i;
while (j > 0)
{
if (GetMem(from - j) == 0x00)
break; // BRK usually signifies data
if (opsize[GetMem(from - j)] == 0)
break; // invalid instruction!
if (opsize[GetMem(from - j)] > j)
break; // instruction is too long!
if (opsize[GetMem(from - j)] == j)
return (from - j); // instruction is just right! :D
j -= opsize[GetMem(from - j)];
}
i--;
}
// if we get here, no suitable instruction was found
if ((from >= 2) && (GetMem(from - 2) == 0x00))
return (from - 2); // if a BRK instruction is possible, use that
if (from)
return (from - 1); // else, scroll up one byte
return 0; // of course, if we can't scroll up, just return 0!
}
static int InstructionDown(int from)
{
int tmp = opsize[GetMem(from)];
if ((tmp))
return from + tmp;
else
return from + 1; // this is data or undefined instruction
}
void debuggerWin_t::updateAssemblyView(void)
{
int starting_address, start_address_lp, addr, size;
int instruction_addr;
std::string line, block;
char chr[64];
uint8 opcode[3];
const char *disassemblyText = NULL;
start_address_lp = starting_address = X.PC;
for (int i=0; i < 32; i++)
{
//printf("%i: Start Address: 0x%04X \n", i, start_address_lp );
starting_address = InstructionUp( start_address_lp );
if ( starting_address == start_address_lp )
{
break;
}
start_address_lp = starting_address;
}
addr = starting_address;
for (int i=0; i < 64; i++)
{
line.clear();
// PC pointer
if (addr > 0xFFFF) break;
instruction_addr = addr;
if (addr == X.PC)
{
line.assign(">");
}
else
{
line.assign(" ");
}
if (addr >= 0x8000)
{
if (displayROMoffsets && (GetNesFileAddress(addr) != -1) )
{
sprintf(chr, " %06X: ", GetNesFileAddress(addr));
}
else
{
sprintf(chr, "%02X:%04X: ", getBank(addr), addr);
}
} else
{
sprintf(chr, " :%04X: ", addr);
}
line.append(chr);
size = opsize[GetMem(addr)];
if (size == 0)
{
sprintf(chr, "%02X UNDEFINED", GetMem(addr++));
line.append(chr);
} else
{
if ((addr + size) > 0xFFFF)
{
while (addr < 0xFFFF)
{
sprintf(chr, "%02X OVERFLOW\n", GetMem(addr++));
line.append(chr);
}
break;
}
for (int j = 0; j < size; j++)
{
sprintf(chr, "%02X ", opcode[j] = GetMem(addr++));
line.append(chr);
}
while (size < 3)
{
line.append(" "); //pad output to align ASM
size++;
}
disassemblyText = Disassemble(addr, opcode);
if ( disassemblyText )
{
line.append( disassemblyText );
}
}
// special case: an RTS opcode
if (GetMem(instruction_addr) == 0x60)
{
line.append("-------------------------");
}
line.append("\n");
//printf("%s", line.c_str() );
block.append( line );
}
gtk_text_buffer_set_text( textbuf, block.c_str(), -1 );
}
void debuggerWin_t::updateViewPort(void)
{
updateRegisterView();
updateAssemblyView();
}
@ -286,24 +516,13 @@ static void handleDialogResponse (GtkWidget * w, gint response_id, debuggerWin_t
switch ( dw->dialog_op )
{
case 1: // Breakpoint Add
case 2: // Breakpoint Edit
{
int start_addr = -1, end_addr = -1, type = 0, enable = 1;;
int start_addr = -1, end_addr = -1, type = 0, enable = 1, slot;
const char *name;
const char *cond;
txt = gtk_entry_get_text( GTK_ENTRY( dw->bp_start_entry ) );
if ( txt[0] != 0 )
{
start_addr = strtol( txt, NULL, 16 );
}
txt = gtk_entry_get_text( GTK_ENTRY( dw->bp_end_entry ) );
if ( txt[0] != 0 )
{
end_addr = strtol( txt, NULL, 16 );
}
slot = (dw->dialog_op == 1) ? numWPs : dw->bpEditIdx;
if ( gtk_toggle_button_get_active( GTK_TOGGLE_BUTTON( dw->cpu_radio_btn ) ) )
{
@ -318,6 +537,20 @@ static void handleDialogResponse (GtkWidget * w, gint response_id, debuggerWin_t
type |= BT_S;
}
txt = gtk_entry_get_text( GTK_ENTRY( dw->bp_start_entry ) );
if ( txt[0] != 0 )
{
start_addr = offsetStringToInt( type, txt );
}
txt = gtk_entry_get_text( GTK_ENTRY( dw->bp_end_entry ) );
if ( txt[0] != 0 )
{
end_addr = offsetStringToInt( type, txt );
}
if ( gtk_toggle_button_get_active( GTK_TOGGLE_BUTTON( dw->bp_read_chkbox ) ) )
{
type |= WP_R;
@ -348,7 +581,7 @@ static void handleDialogResponse (GtkWidget * w, gint response_id, debuggerWin_t
{
unsigned int retval;
retval = NewBreak( name, start_addr, end_addr, type, cond, numWPs, enable);
retval = NewBreak( name, start_addr, end_addr, type, cond, slot, enable);
if ( (retval == 1) || (retval == 2) )
{
@ -356,7 +589,10 @@ static void handleDialogResponse (GtkWidget * w, gint response_id, debuggerWin_t
}
else
{
numWPs++;
if (dw->dialog_op == 1)
{
numWPs++;
}
dw->bpListUpdate();
}
@ -430,6 +666,8 @@ static void create_breakpoint_dialog( int index, debuggerWin_t * dw )
(GTK_DIALOG_DESTROY_WITH_PARENT),
"_Cancel", GTK_RESPONSE_CANCEL,
"_Edit", GTK_RESPONSE_OK, NULL);
dw->bpEditIdx = index;
}
gtk_dialog_set_default_response( GTK_DIALOG(win), GTK_RESPONSE_OK );
@ -529,6 +767,25 @@ static void create_breakpoint_dialog( int index, debuggerWin_t * dw )
g_signal_connect (win, "response",
G_CALLBACK (handleDialogResponse), dw);
if ( index >= 0 )
{
if ( watchpoint[index].flags & BT_P )
{
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( dw->ppu_radio_btn ), TRUE );
}
else if ( watchpoint[index].flags & BT_S )
{
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( dw->sprite_radio_btn ), TRUE );
}
else
{
gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( dw->cpu_radio_btn ), TRUE );
}
}
else
{
}
}
static void addBreakpointCB (GtkButton * button, debuggerWin_t * dw)
@ -538,17 +795,214 @@ static void addBreakpointCB (GtkButton * button, debuggerWin_t * dw)
create_breakpoint_dialog( -1, dw );
}
static void editBreakpointCB (GtkButton * button, debuggerWin_t * dw)
{
int selRow;
selRow = dw->get_bpList_selrow();
if ( selRow >= 0 )
{
dw->dialog_op = 2;
create_breakpoint_dialog( selRow, dw );
}
}
static void DeleteBreak(int sel)
{
if(sel<0) return;
if(sel>=numWPs) return;
if (watchpoint[sel].cond)
{
freeTree(watchpoint[sel].cond);
}
if (watchpoint[sel].condText)
{
free(watchpoint[sel].condText);
}
if (watchpoint[sel].desc)
{
free(watchpoint[sel].desc);
}
// move all BP items up in the list
for (int i = sel; i < numWPs; i++)
{
watchpoint[i].address = watchpoint[i+1].address;
watchpoint[i].endaddress = watchpoint[i+1].endaddress;
watchpoint[i].flags = watchpoint[i+1].flags;
// ################################## Start of SP CODE ###########################
watchpoint[i].cond = watchpoint[i+1].cond;
watchpoint[i].condText = watchpoint[i+1].condText;
watchpoint[i].desc = watchpoint[i+1].desc;
// ################################## End of SP CODE ###########################
}
// erase last BP item
watchpoint[numWPs].address = 0;
watchpoint[numWPs].endaddress = 0;
watchpoint[numWPs].flags = 0;
watchpoint[numWPs].cond = 0;
watchpoint[numWPs].condText = 0;
watchpoint[numWPs].desc = 0;
numWPs--;
}
static void deleteBreakpointCB (GtkButton * button, debuggerWin_t * dw)
{
int selRow;
selRow = dw->get_bpList_selrow();
if ( (selRow >= 0) && (selRow < numWPs) )
{
DeleteBreak( selRow );
dw->bpListUpdate();
}
}
static void debugRunCB (GtkButton * button, debuggerWin_t * dw)
{
if (FCEUI_EmulationPaused())
{
//UpdateRegs(hwndDlg);
FCEUI_ToggleEmulationPause();
//DebuggerWasUpdated = false done in above function;
}
}
static void debugStepIntoCB (GtkButton * button, debuggerWin_t * dw)
{
FCEUI_Debugger().step = true;
FCEUI_SetEmulationPaused(0);
}
static void debugStepOutCB (GtkButton * button, debuggerWin_t * dw)
{
if (FCEUI_EmulationPaused() > 0)
{
DebuggerState &dbgstate = FCEUI_Debugger();
//UpdateRegs(hwndDlg);
if (dbgstate.stepout)
{
printf("Step Out is currently in process.\n");
return;
}
if (GetMem(X.PC) == 0x20)
{
dbgstate.jsrcount = 1;
}
else
{
dbgstate.jsrcount = 0;
}
dbgstate.stepout = 1;
FCEUI_SetEmulationPaused(0);
}
}
static void debugStepOverCB (GtkButton * button, debuggerWin_t * dw)
{
if (FCEUI_EmulationPaused())
{
//UpdateRegs(hwndDlg);
int tmp=X.PC;
uint8 opcode = GetMem(X.PC);
bool jsr = opcode==0x20;
bool call = jsr;
#ifdef BRK_3BYTE_HACK
//with this hack, treat BRK similar to JSR
if(opcode == 0x00)
{
call = true;
}
#endif
if (call)
{
if (watchpoint[64].flags)
{
printf("Step Over is currently in process.\n");
return;
}
watchpoint[64].address = (tmp+3);
watchpoint[64].flags = WP_E|WP_X;
}
else
{
FCEUI_Debugger().step = true;
}
FCEUI_SetEmulationPaused(0);
}
}
static void debugRunLineCB (GtkButton * button, debuggerWin_t * dw)
{
uint64 ts=timestampbase;
ts+=timestamp;
ts+=341/3;
//if (scanline == 240) vblankScanLines++;
//else vblankScanLines = 0;
FCEUI_Debugger().runline = true;
FCEUI_Debugger().runline_end_time=ts;
FCEUI_SetEmulationPaused(0);
}
static void debugRunLine128CB (GtkButton * button, debuggerWin_t * dw)
{
//if (FCEUI_EmulationPaused())
//{
// UpdateRegs(hwndDlg);
//}
FCEUI_Debugger().runline = true;
{
uint64 ts=timestampbase;
ts+=timestamp;
ts+=128*341/3;
FCEUI_Debugger().runline_end_time=ts;
//if (scanline+128 >= 240 && scanline+128 <= 257) vblankScanLines = (scanline+128)-240;
//else vblankScanLines = 0;
}
FCEUI_SetEmulationPaused(0);
}
static void romOffsetToggleCB( GtkToggleButton *togglebutton, debuggerWin_t * dw)
{
dw->displayROMoffsets = gtk_toggle_button_get_active( togglebutton );
dw->updateViewPort();
//printf("Toggle ROM Offset: %i \n", dw->displayROMoffsets );
}
static void updateAllDebugWindows(void)
{
std::list < debuggerWin_t * >::iterator it;
for (it = debuggerWinList.begin (); it != debuggerWinList.end (); it++)
{
(*it)->updateViewPort();
}
}
static void winDebuggerLoopStep(void)
{
FCEUD_UpdateInput();
while(gtk_events_pending())
{
gtk_main_iteration_do(FALSE);
}
}
//this code enters the debugger when a breakpoint was hit
void FCEUD_DebugBreakpoint(int bp_num)
{
//printf("Breakpoint Hit: %i \n", bp_num);
updateAllDebugWindows();
//std::list < debuggerWin_t * >::iterator it;
//for (it = debuggerWinList.begin (); it != debuggerWinList.end (); it++)
//{
//}
while(FCEUI_EmulationPaused() && !FCEUI_EmulationFrameStepped())
{
usleep(50000);
winDebuggerLoopStep();
}
}
static void closeDebuggerWindow (GtkWidget * w, GdkEvent * e, debuggerWin_t * dw)
@ -559,7 +1013,6 @@ static void closeDebuggerWindow (GtkWidget * w, GdkEvent * e, debuggerWin_t * dw
{
if (dw == *it)
{
//printf("Removing MemView Window %p from List\n", cw);
debuggerWinList.erase (it);
break;
}
@ -660,28 +1113,46 @@ void openDebuggerWindow (void)
// Row 1
button = gtk_button_new_with_label ("Run");
g_signal_connect (button, "clicked",
G_CALLBACK (debugRunCB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 0, 0, 1, 1 );
button = gtk_button_new_with_label ("Step Into");
g_signal_connect (button, "clicked",
G_CALLBACK (debugStepIntoCB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 1, 0, 1, 1 );
// Row 2
button = gtk_button_new_with_label ("Step Out");
g_signal_connect (button, "clicked",
G_CALLBACK (debugStepOutCB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 0, 1, 1, 1 );
button = gtk_button_new_with_label ("Step Over");
g_signal_connect (button, "clicked",
G_CALLBACK (debugStepOverCB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 1, 1, 1, 1 );
// Row 3
button = gtk_button_new_with_label ("Run Line");
g_signal_connect (button, "clicked",
G_CALLBACK (debugRunLineCB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 0, 2, 1, 1 );
button = gtk_button_new_with_label ("128 Lines");
g_signal_connect (button, "clicked",
G_CALLBACK (debugRunLine128CB), (gpointer) dw);
gtk_grid_attach( GTK_GRID(grid), button, 1, 2, 1, 1 );
// Row 4
@ -838,10 +1309,16 @@ void openDebuggerWindow (void)
button = gtk_button_new_with_label ("Delete");
g_signal_connect (button, "clicked",
G_CALLBACK (deleteBreakpointCB), (gpointer) dw);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 2);
button = gtk_button_new_with_label ("Edit");
g_signal_connect (button, "clicked",
G_CALLBACK (editBreakpointCB), (gpointer) dw);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 2);
button = gtk_check_button_new_with_label("Break on Bad Opcodes");
@ -1004,6 +1481,8 @@ void openDebuggerWindow (void)
button = gtk_button_new_with_label ("Reset Counters");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 2);
button = gtk_check_button_new_with_label("ROM Offsets");
g_signal_connect (button, "toggled",
G_CALLBACK (romOffsetToggleCB), dw);
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 2);
button = gtk_check_button_new_with_label("Symbolic Debug");
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 2);

6
src/ppu.cpp
View File

@ -1375,7 +1375,9 @@ static void DoLine(void) {
GameHBIRQHook();
}
#ifdef WIN32
DEBUG(FCEUD_UpdateNTView(scanline, 0));
#endif
if (SpriteON)
RefreshSprites();
@ -1852,7 +1854,9 @@ int FCEUPPU_Loop(int skip) {
for (scanline = 0; scanline < totalscanlines; ) { //scanline is incremented in DoLine. Evil. :/
deempcnt[deemp]++;
if (scanline < 240)
#ifdef WIN32
DEBUG(FCEUD_UpdatePPUView(scanline, 1));
#endif
DoLine();
if (scanline < normalscanlines || scanline == totalscanlines)
@ -2145,8 +2149,10 @@ int FCEUX_PPU_Loop(int skip) {
ppuphase = PPUPHASE_BG;
if (sl != 0 && sl < 241) { // ignore the invisible
#ifdef WIN32
DEBUG(FCEUD_UpdatePPUView(scanline = yp, 1));
DEBUG(FCEUD_UpdateNTView(scanline = yp, 1));
#endif
}
//hack to fix SDF ship intro screen with split. is it right?