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ZealOS/src/Kernel/KDebug.CC

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Fuck ton of renaming
2020-02-15 22:25:33 +00:00
Bool CheckPtr(U8 *ptr)
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{//Check if addr is valid ptr.
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if (mem_heap_base <= ptr <= mem_mapped_space)
return *MemPageTable(ptr) & 1;
else
return mem_boot_base < ptr < VGAM_GRAPHICS;
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}
Fuck ton of renaming
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Bool CheckCodePtr(U8 *ptr)
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{//Check if addr is valid code addr.
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if (mem_heap_base <= ptr <= mem_heap_limit)
return *MemPageTable(ptr) & 1;
else
return mem_boot_base < ptr < VGAM_GRAPHICS;
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}
stk -> stack, CNT -> COUNT
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Bool CheckOnStack(U8 *ptr,CTask *task=NULL)
{//Check if addr is valid stack addr.
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Bool res = FALSE;
PUSHFD
CLI
if(task) {
if (&task->stack->stack_base <= ptr <= (&task->stack->stack_base)(U8 *) + task->stack->stack_size)
res=TRUE;
}
else if (mem_heap_base <= ptr <= mem_heap_limit)
res = TRUE;
POPFD
return res;
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}
stk -> stack, CNT -> COUNT
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I64 UnusedStack(CTask *task=NULL)
{//Count of usused bytes in task's stack.
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I64 res;
if (!task)
task=Fs;
PUSHFD
CLI
if (task == Fs)
res = GetRSP()(U8 *) - (&task->stack->stack_base)(U8 *);
else
res = task->rsp(U8 *) - (&task->stack->stack_base)(U8 *);
POPFD
return res;
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}
U8 *Caller(I64 num=1)
{//Returns the addr of the fun which called this one,
//or the caller of the caller, etc.
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U8 **rbp=GetRBP,**ptr;
while (num--) {
if (rbp>=*rbp)
return NULL;
rbp=*rbp;
if (!CheckOnStack(rbp,Fs))
return NULL;
}
ptr=rbp+1;
return *ptr;
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}
U8 *TaskCaller(CTask *task=NULL,I64 num=0,Bool saved_context=FALSE)
stk -> stack, CNT -> COUNT
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{//Fetches addr of Nth caller on task's stack.
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U8 **ptr,**rbp,**rsp;
if (!task) task=Fs;
if (!saved_context && task==Fs)
return Caller(num+1);
if (!TaskValidate(task))
return NULL;
rbp=task->rbp;
rsp=task->rsp;
if (num) {
while (CheckOnStack(rbp,task)) {
ptr=rbp+1;
if (! --num)
return *ptr;
if (rbp>=*rbp)
break;
rbp=*rbp;
}
return NULL;
} else {
if (task->rip==_RET)
return *rsp;
else
return task->rip;
}
}
#define STACK_REP_LEN 32
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stk -> stack, CNT -> COUNT
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U0 StackRep(CTask *task=NULL)
{//Reports whats on the stack.
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I64 i,j,addr,
**rbp,**rsp,*my_rsp[STACK_REP_LEN];
CHashTable *old_hash=Fs->hash_table;
if (!task) task=Fs;
if (!TaskValidate(task))
return;
PUSHFD
CLI
if (task==Fs) {
rbp=GetRBP;
rsp=rbp+3;
rbp=*rbp;
} else {
rsp=task->rsp;
rbp=task->rbp;
}
if (task->rip==_RET)
addr=*rsp;
else
addr=task->rip;
MemCopy(my_rsp,rsp,STACK_REP_LEN*sizeof(U8 *));
POPFD
Fs->hash_table=task->hash_table;
for (i=0;i<STACK_REP_LEN;i++) {
"%08X [RSP+%04X]: %016X ",rsp+i,
i*sizeof(U8 *),my_rsp[i];
while (TRUE) {
if (!(&task->stack->stack_base<=rbp<
(&task->stack->stack_base)(U8 *)+task->stack->stack_size))
break;
j=rbp-rsp;
if (j>=i)
break;
addr=my_rsp[j+1];
if (rbp>=my_rsp[j])
break;
rbp=my_rsp[j];
}
if (my_rsp[i]==addr)
"$$RED$$";
"%P$$FG$$\n",my_rsp[i];
}
'\n';
Fs->hash_table=old_hash;
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}
U0 CallerRep(U8 **rbp=NULL,CTask *task=NULL)
{//Prints a report of calling routines.
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I64 **ptr;
if (!task) task=Fs;
if (!rbp) {
if (task==Fs)
rbp=GetRBP;
else
rbp=task->rbp;
}
"CallerRep:\n";
while (CheckOnStack(rbp,task)) {
ptr=rbp+1;
"%08X:%08tX:%P\n",ptr,*ptr,*ptr;
if (rbp>=*rbp)
break;
rbp=*rbp;
}
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}
cnt -> count
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U0 D(U8 *addr,I64 count=0x80,Bool show_offset=TRUE)
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{//Dump mem, showing offsets.
//See $LK,"DocD",A="MN:DocD"$() for a live dump.
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I64 i,j,ch;
U8 *ptr=addr;
while (count) {
if (show_offset)
"%08X",ptr-addr;
else
"%010X",ptr;
if (count>16)
j=16;
else
j=count;
for (i=0;i<j;i++)
"%02X ",ptr[i];
for (;i<16;i++)
"";
for (i=0;i<j;i++) {
ch=ptr[i];
if (ch<CH_SHIFT_SPACE || ch==CH_BACKSPACE)
ch='.';
'' ch;
if (ch=='$$')
'' ch;
}
'\n';
count-=j;
ptr+=j;
}
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}
cnt -> count
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U0 Dm(U8 *addr,I64 count=0x80)
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{//Show mem addr, not offsets.
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D(addr,count,FALSE);
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}
cnt -> count
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U0 Da(U8 **addr,I64 count=0x10)
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{//Dump mem, showing symbolic addresses.
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while (count-->0) {
"%08X:%08X,%P\n",addr,*addr,*addr;
addr++;
}
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}
ms -> mouse, fmt -> format, cfg -> config
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U0 RawPrint(I64 mS=100,U8 *format,...)
HC -> CC
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{//Print using $LK,"Raw",A="MN:Raw"$ screen output for a length of time.
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//$BK,1$Your heap must be good.$BK,0$
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U8 *buf=StrPrintJoin(NULL,format,argc,argv);
Bool old_raw,old_input_filter;
PUSHFD
CLI
old_raw=Raw(ON);
old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
"%s",buf;
Busy(mS<<10);
POPFD
LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
Raw(old_raw);
Free(buf);
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}
cnt -> count
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U0 RawD(I64 mS=100,U8 *addr,I64 count=0x80)
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{//Dumps a block of mem using $LK,"Raw",A="MN:Raw"$
HC -> CC
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//screen output for a fixed length
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//of time.
Bool old_raw,old_input_filter;
PUSHFD
CLI
old_raw=Raw(ON);
old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
D(addr,count);
Busy(mS<<10);
POPFD
LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
Raw(old_raw);
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}
cnt -> count
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U0 RawDm(I64 mS=100,U8 *addr,I64 count=0x80)
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{//Dumps a block of mem using $LK,"Raw",A="MN:Raw"$
HC -> CC
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//screen output for a fixed length
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//of time.
Bool old_raw,old_input_filter;
PUSHFD
CLI
old_raw=Raw(ON);
old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
Dm(addr,count);
Busy(mS<<10);
POPFD
LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
Raw(old_raw);
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}
I64 *TaskRegAddr(CTask *task,I64 reg_num)
{
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switch (reg_num) {
case REG_RAX: return &task->rax;
case REG_RCX: return &task->rcx;
case REG_RDX: return &task->rdx;
case REG_RBX: return &task->rbx;
case REG_RSP: return &task->rsp;
case REG_RBP: return &task->rbp;
case REG_RSI: return &task->rsi;
case REG_RDI: return &task->rdi;
case 8 : return &task->r8;
case 9 : return &task->r9;
case 10: return &task->r10;
case 11: return &task->r11;
case 12: return &task->r12;
case 13: return &task->r13;
case 14: return &task->r14;
case 15: return &task->r15;
}
return NULL;
}
#define RAWDR_COL (text.cols-40)
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U0 RawDr(CTask *task=NULL)
{
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I64 i,j,old_col=text.raw_col;
Bool old_raw=Raw(ON);
U8 buf[200];
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if (!task) task=Fs;
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for (i=0;i<16;i++) {
text.raw_col=i*text.cols+RAWDR_COL;
"<EFBFBD>%3Z:%016X\n",i,"ST_U64_REGS",*TaskRegAddr(task,i);
}
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text.raw_col=i++*text.cols+RAWDR_COL;
"<EFBFBD>RIP:%016X\n",task->rip;
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text.raw_col=i++*text.cols+RAWDR_COL;
"<EFBFBD>%-*tp\n",text.cols-(RAWDR_COL+1)-1,Fs->rip;
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text.raw_col=i++*text.cols+RAWDR_COL;
'<EFBFBD>';
if (Bt(&sys_run_level,RLf_COMPILER)) {
j=Fs->rip;
Ui(buf,&j,,,TRUE);
"%s",buf;
} else
'\n';
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text.raw_col=i*text.cols+RAWDR_COL;
'<EFBFBD>';
for (j=0;j<text.cols-RAWDR_COL-1;j++)
'<EFBFBD>';
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text.raw_col=old_col;
Raw(old_raw);
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}
U0 Dr(CTask *task=NULL)
{//Dump regs
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I64 i;
if (!task) task=Fs;
for (i=0;i<16;i++)
"%3Z:%016X\n",i,"ST_U64_REGS",*TaskRegAddr(task,i);
"RIP:%016X\n",task->rip;
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}
U8 *SysGetStr2(I64)
{
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U8 buf[512];
GetS(buf,512,FALSE);
return StrNew(buf);
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}
CBpt *BptFind(U8 *needle_addr,CTask *haystack_task=NULL,Bool rem=FALSE)
{
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CBpt *res=NULL,*tmpb,*tmpb1,*tmpb2;
if (!haystack_task) haystack_task=Fs;
PUSHFD
CLI
tmpb1=&haystack_task->bpt_list;
tmpb=haystack_task->bpt_list;
while (tmpb) {
tmpb2=tmpb->next;
if (tmpb->addr==needle_addr) {
res=tmpb;
if (rem)
tmpb1->next=tmpb2;
else
tmpb1=&tmpb->next;
} else
tmpb1=&tmpb->next;
tmpb=tmpb2;
}
POPFD
return res;
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}
Bool BptS(U8 *addr,CTask *task=NULL,Bool live=TRUE)
{//Set breakpoint.
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CBpt *tmpb;
Bool res=TRUE;
if (!task) task=Fs;
PUSHFD
CLI
if (!(tmpb=BptFind(addr,task,FALSE))) {
tmpb=CAlloc(sizeof(CBpt),task);
tmpb->addr=addr;
tmpb->val=*addr;
res=FALSE;
tmpb->next=task->bpt_list;
task->bpt_list=tmpb;
if (task==Fs && live)
*addr=OC_BPT;
}
POPFD
return res;
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}
Bool BptR(U8 *addr,CTask *task=NULL,Bool live=TRUE,Bool rem=TRUE)
Rem -> Remove
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{//Remove breakpoint.
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CBpt *tmpb;
Bool res=FALSE;
if (!task) task=Fs;
PUSHFD
CLI
if (tmpb=BptFind(addr,task,rem)) {
if (task==Fs && live)
*tmpb->addr=tmpb->val;
res=TRUE;
if (rem)
Free(tmpb);
}
POPFD
return res;
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}
Bool B(U8 *addr,CTask *task=NULL,Bool live=TRUE)
{//Toggle breakpoint.
//Return: TRUE if removed.
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Bool res=FALSE;
PUSHFD
CLI
if (BptFind(addr,task,FALSE)) {
BptR(addr,task,live,TRUE);
res=TRUE;
} else
BptS(addr,task,live);
POPFD
return res;
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}
I64 B2(CTask *task=NULL,Bool live=TRUE)
Rem -> Remove
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{//Remove all breakpoints.
cnt -> count
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//Return: count of removed.
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I64 res=0;
CBpt *tmpb,*tmpb1;
if (!task) task=Fs;
PUSHFD
CLI
tmpb=task->bpt_list;
task->bpt_list=NULL;
while (tmpb) {
tmpb1=tmpb->next;
if (task==Fs && live)
*tmpb->addr=tmpb->val;
Free(tmpb);
tmpb=tmpb1;
res++;
}
POPFD
return res;
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}
U0 G(U8 *ip=INVALID_PTR,CTask *task=NULL)
{//Go
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if (!task) task=Fs;
if (ip!=INVALID_PTR) task->rip=ip;
if (BptFind(task->rip,task))
"\nDo one of the following, first:\n"
">S;\t\t\t//Single step\n"
">B2;\t\t\t//Clear all break points\n"
">G2;\t\t\t//Clear all break points and Go\n\n"
"After resuming, <CTRL-ALT-n> next focus task\n"
"After resuming, <CTRL-ALT-v> flushes screen VGA cache\n";
else {
LBtr(&task->task_flags,TASKf_DISABLE_BPTS);
LBtr(&task->rflags,RFLAGf_TRAP);//No single step
Suspend(task,FALSE);
if (task==Fs) {
if (IsDebugMode && task->next_cc!=&task->next_cc) {
"Exit Debug\n";
Btr(&task->last_cc->flags,CCf_PROMPT);
}
} else
Exit;
}
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}
U0 G2(U8 *ip=INVALID_PTR,CTask *task=NULL)
Rem -> Remove
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{//Remove all breakpoints and Go.
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if (!task) task=Fs;
B2(task);
if (ext[EXT_WIN_FOCUS])
CallExtNum(EXT_WIN_FOCUS,debug.focus_task);
Add ChangeLog.DD. Contains Terry's changelog from TOS 4.07 until 5.03. Most of his links are broken. To Be Fixed Renamed VBEFlush -> LFBFlush Removed Balloon Graphics Demo
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LFBFlush;
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G(ip,task);
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}
public U0 S(U8 *ip=INVALID_PTR,CTask *task=NULL) //Single-step.
{//Single step.
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if (!task) task=Fs;
PUSHFD
CLI
if (ip!=INVALID_PTR) task->rip=ip;
LBts(&task->task_flags,TASKf_DISABLE_BPTS);
LBts(&task->rflags,RFLAGf_TRAP);
Suspend(task,FALSE);
if (task==Fs) {
if (IsDebugMode) {
if (task->next_cc!=&task->next_cc)
Btr(&task->last_cc->flags,CCf_PROMPT);
}
} else
Exit;
POPFD
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}
Fuck ton of renaming
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U0 DebugHelp()
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{
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"\n"
"The cmd line is basically the same as normal. Here are some common\n"
"debugging commands.\n\n"
">EdLite(\"FileName\");\t\t//Edit file.\n"
">D(0x100000);\t\t\t//Dump page tables.\n"
">Dm(0x100000);\t\t\t//Dump page tables.\n"
">Dm(Fs,sizeof(CTask));\t\t//Dump current task record.\n"
">ClassRep(Fs,\"CTask\",1);\t//Dump current task record.\n"
">ClassRep(Fs,,1);\t\t//(It knows lastclass.)\n"
">CallerRep;\t\t\t//Stack trace report.\n"
">Da(_RSP);\t\t\t//Dump stack.\n"
">Dr;\t\t\t\t//Dump Regs.\n"
">1+2*3+&Print;\t\t\t//Show calculation res.\n"
">*(0x70000)(I64 *)=0x123456789;\t//Assign value to 0x70000-0x70007.\n"
">_RAX=0x1234;\t\t\t//Set RAX to 0x1234.\n"
">_RIP=&Break;\t\t//Set RIP.\n"
">I64 i;\t\t\t\t//Declare variable.\n"
">i=_RCX+_RDX;\t\t\t//Assign to variable.\n"
">U(&Print+0x8);\t\t\t//Unassemble Print.\n"
">Uf(\"Print\");\t\t\t//Unassembler function \"Print\".\n"
">Man(\"Print\");\t\t\t//Edit Src for \"Print\".\n"
">E(_RIP);\t\t\t//Edit Src Code.\n"
">Fix;\t\t\t\t//Edit Last Err Src Code.\n"
">B(&Main+0x20);\t\t\t//Toggle break point.\n"
">B2;\t\t\t\t//Clear all break points.\n"
">S;\t\t\t\t//Single step.\n"
">G;\t\t\t\t//Resume execution.\n"
Add ChangeLog.DD. Contains Terry's changelog from TOS 4.07 until 5.03. Most of his links are broken. To Be Fixed Renamed VBEFlush -> LFBFlush Removed Balloon Graphics Demo
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">G2;\t\t\t\t//B2;LFBFlush;WinFocus;G;\n"
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">Exit;\t\t\t\t//Exit (kill) task.\n\n"
"After resuming, <CTRL-ALT-n> next focus task.\n"
"After resuming, <CTRL-ALT-v> flushes screen VGA cache.\n\n";
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}
Fuck ton of renaming
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U0 Debug2()
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{
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Bool old_win_inhibit,old_waiting_message,old_single;
I64 i,old_getstr2;
U8 buf[200];
if (debug.panic) {
if (IsRaw) {
i=Fs->rip;
Ui(buf,&i);
"%s",buf;
} else
U(Fs->rip,1);
} else
debug.panic=TRUE;
old_waiting_message=LBtr(&Fs->task_flags,TASKf_AWAITING_MESSAGE);
old_win_inhibit=Fs->win_inhibit;
Fs->win_inhibit=WIG_USER_TASK_DEFAULT;
sys_focus_task=Fs;
kbd.scan_code=0;
old_getstr2=fp_getstr2;
fp_getstr2=&SysGetStr2;
old_single=SingleUser(OFF);
while (!mouse_hard.install_attempts)
Yield;
SingleUser(old_single);
UserTaskCont;
fp_getstr2=old_getstr2;
Fs->win_inhibit=old_win_inhibit;
LBEqual(&Fs->task_flags,TASKf_AWAITING_MESSAGE,old_waiting_message);
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}
U0 Fault3(I64 fault_num,I64 fault_err_code)
{
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no_warn fault_err_code;
PUSHFD
CLI
if (Gs->num && debug.mp_crash) {
mp_count=1;
debug.mp_crash->cpu_num=Gs->num;
debug.mp_crash->task=Fs;
debug.mp_crash->rip=Fs->rip;
debug.mp_crash->message=debug.message;
debug.mp_crash->message_num=debug.message_num;
MPInt(I_MP_CRASH,0);
SysHlt;
}
"\n\tZenithOS Debugger\n\n"
">Help;\t//For help.\n\n";
Beep(62,TRUE);
if (fault_num==I_DEBUG) {
if (debug.message) {
"\n!!!%s",debug.message;
if (debug.message_num)
"%016X",debug.message_num;
"!!!\n\n";
}
}
if (debug.panic)
CallerRep;
Debug2;
POPFD
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}
U0 Fault2(I64 fault_num,I64 fault_err_code)
Last of dbg -> debug, rename KInts to KInterrupts
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{//Called from $LK,"Fault2",A="FF:::/Kernel/KInterrupts.CC,Fault2"$.
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//$BK,1$Be careful not to swap-out and ruin the saved context$BK,0$
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Bool was_raw,was_single_user,was_silent,was_in_debug,was_mouse_enabled;
I64 i,old_raw_flags=text.raw_flags;
was_single_user=SingleUser(ON);
if (!IsDebugMode)
debug.focus_task=sys_focus_task;
sys_focus_task=NULL;
if (fault_num==I_BPT)
Fs->rip--;
if (Fs->debug_task)
CallExtNum(EXT_DEBUG_RESUME,fault_num,fault_err_code);
else {
MouseEnable -> MouseHardEnable increased cursor arrow thickness to 2
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was_mouse_enabled = CallExtStr("MouseHardEnable", FALSE);
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was_raw=Raw(ON);
was_silent=Silent(OFF);
text.raw_flags|=RAWF_SHOW_DOLLAR|RAWF_SCROLL;
"Task \"";
"%s",Fs->task_title;
"\"\n";
"Fault:0x%02X %Z\t\tErr Code:%08X\n",
fault_num,fault_num,"ST_INT_NAMES",fault_err_code;
was_in_debug=DebugMode(ON);
"RIP:%08X",Fs->rip; //Sometimes crashes on %p, so do this first
":%pRSP:%08X\n",Fs->rip,Fs->rsp;
if (fault_num==I_PAGE_FAULT) {
MOV_RAX_CR2
i=GetRAX;
"Fault Addr:%08X:%p\n",i,i;
}
Fault3(fault_num,fault_err_code);
DebugMode(was_in_debug);
Silent(was_silent);
Raw(was_raw);
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CallExtStr("MouseHardEnable", was_mouse_enabled);
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text.raw_flags=old_raw_flags;
}
SingleUser(was_single_user);
if (LBtr(&Fs->task_flags,TASKf_KILL_AFTER_DEBUG))
Exit;
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}
hndlr -> handler, msg -> message
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U0 Panic(U8 *message=NULL,I64 message_num=0,Bool panic=TRUE)
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{//Enter the debugger with panic?
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PUSHFD
CLI
debug.message=message;
debug.message_num=message_num;
debug.panic=panic;
INT I_DEBUG
POPFD
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}
hndlr -> handler, msg -> message
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U0 Debug(U8 *message=NULL,I64 message_num=0)
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{//Enter debugger, no panic.
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Panic(message,message_num,FALSE);
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}
Reference in a new issue Copy permalink