mirror of
https://github.com/Zeal-Operating-System/ZealOS.git
synced 2024-12-28 08:16:31 +00:00
641 lines
14 KiB
HolyC
Executable file
641 lines
14 KiB
HolyC
Executable file
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)
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return *MemPageTable(ptr) & 1;
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else
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return mem_boot_base < ptr < VGAM_GRAPHICS;
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}
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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)
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return *MemPageTable(ptr) & 1;
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else
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return mem_boot_base < ptr < VGAM_GRAPHICS;
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}
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Bool CheckOnStack(U8 *ptr,CTask *task=NULL)
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{//Check if addr is valid stack addr.
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Bool res = FALSE;
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PUSHFD
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CLI
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if(task) {
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if (&task->stack->stack_base <= ptr <= (&task->stack->stack_base)(U8 *) + task->stack->stack_size)
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res=TRUE;
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}
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else if (mem_heap_base <= ptr <= mem_heap_limit)
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res = TRUE;
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POPFD
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return res;
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}
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I64 UnusedStack(CTask *task=NULL)
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{//Count of usused bytes in task's stack.
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I64 res;
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if (!task)
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task=Fs;
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PUSHFD
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CLI
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if (task == Fs)
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res = RSPGet()(U8 *) - (&task->stack->stack_base)(U8 *);
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else
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res = task->rsp(U8 *) - (&task->stack->stack_base)(U8 *);
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POPFD
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return res;
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}
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U8 *Caller(I64 num=1)
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{//Returns the addr of the fun which called this one,
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//or the caller of the caller, etc.
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U8 **rbp=RBPGet,**ptr;
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while (num--) {
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if (rbp>=*rbp)
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return NULL;
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rbp=*rbp;
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if (!CheckOnStack(rbp,Fs))
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return NULL;
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}
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ptr=rbp+1;
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return *ptr;
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}
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U8 *TaskCaller(CTask *task=NULL,I64 num=0,Bool saved_context=FALSE)
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{//Fetches addr of Nth caller on task's stack.
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U8 **ptr,**rbp,**rsp;
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if (!task) task=Fs;
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if (!saved_context && task==Fs)
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return Caller(num+1);
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if (!TaskValidate(task))
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return NULL;
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rbp=task->rbp;
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rsp=task->rsp;
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if (num) {
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while (CheckOnStack(rbp,task)) {
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ptr=rbp+1;
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if (! --num)
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return *ptr;
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if (rbp>=*rbp)
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break;
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rbp=*rbp;
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}
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return NULL;
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} else {
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if (task->rip==_RET)
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return *rsp;
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else
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return task->rip;
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}
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}
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#define STACK_REP_LEN 32
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U0 StackRep(CTask *task=NULL)
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{//Reports whats on the stack.
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I64 i,j,addr,
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**rbp,**rsp,*my_rsp[STACK_REP_LEN];
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CHashTable *old_hash=Fs->hash_table;
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if (!task) task=Fs;
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if (!TaskValidate(task))
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return;
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PUSHFD
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CLI
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if (task==Fs) {
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rbp=RBPGet;
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rsp=rbp+3;
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rbp=*rbp;
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} else {
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rsp=task->rsp;
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rbp=task->rbp;
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}
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if (task->rip==_RET)
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addr=*rsp;
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else
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addr=task->rip;
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MemCopy(my_rsp,rsp,STACK_REP_LEN*sizeof(U8 *));
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POPFD
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Fs->hash_table=task->hash_table;
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for (i=0;i<STACK_REP_LEN;i++) {
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"%08X [RSP+%04X]: %016X ",rsp+i,
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i*sizeof(U8 *),my_rsp[i];
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while (TRUE) {
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if (!(&task->stack->stack_base<=rbp<
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(&task->stack->stack_base)(U8 *)+task->stack->stack_size))
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break;
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j=rbp-rsp;
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if (j>=i)
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break;
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addr=my_rsp[j+1];
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if (rbp>=my_rsp[j])
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break;
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rbp=my_rsp[j];
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}
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if (my_rsp[i]==addr)
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"$$RED$$";
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"%P$$FG$$\n",my_rsp[i];
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}
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'\n';
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Fs->hash_table=old_hash;
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}
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U0 CallerRep(U8 **rbp=NULL,CTask *task=NULL)
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{//Prints a report of calling routines.
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I64 **ptr;
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if (!task) task=Fs;
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if (!rbp) {
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if (task==Fs)
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rbp=RBPGet;
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else
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rbp=task->rbp;
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}
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"CallerRep:\n";
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while (CheckOnStack(rbp,task)) {
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ptr=rbp+1;
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"%08X:%08tX:%P\n",ptr,*ptr,*ptr;
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if (rbp>=*rbp)
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break;
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rbp=*rbp;
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}
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}
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U0 D(U8 *addr,I64 count=0x80,Bool show_offset=TRUE)
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{//Dump mem, showing offsets.
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//See $LK,"DocD",A="MN:DocD"$() for a live dump.
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I64 i,j,ch;
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U8 *ptr=addr;
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while (count) {
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if (show_offset)
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"%08X ",ptr-addr;
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else
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"%010X ",ptr;
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if (count>16)
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j=16;
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else
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j=count;
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for (i=0;i<j;i++)
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"%02X ",ptr[i];
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for (;i<16;i++)
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" ";
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for (i=0;i<j;i++) {
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ch=ptr[i];
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if (ch < CH_SPACE || ch==CH_BACKSPACE)
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ch='.';
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'' ch;
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if (ch=='$$')
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'' ch;
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}
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'\n';
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count-=j;
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ptr+=j;
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}
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}
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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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}
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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) {
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"%08X:%08X,%P\n",addr,*addr,*addr;
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addr++;
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}
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}
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U0 RawPrint(I64 mS=100,U8 *format,...)
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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);
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Bool old_raw,old_input_filter;
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PUSHFD
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CLI
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old_raw=Raw(ON);
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old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
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"%s",buf;
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Busy(mS<<10);
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POPFD
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LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
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Raw(old_raw);
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Free(buf);
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}
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U0 RawD(I64 mS=100,U8 *addr,I64 count=0x80)
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{//Dumps a block of mem using $LK,"Raw",A="MN:Raw"$
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//screen output for a fixed length
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//of time.
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Bool old_raw,old_input_filter;
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PUSHFD
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CLI
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old_raw=Raw(ON);
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old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
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D(addr,count);
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Busy(mS<<10);
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POPFD
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LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
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Raw(old_raw);
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}
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U0 RawDm(I64 mS=100,U8 *addr,I64 count=0x80)
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{//Dumps a block of mem using $LK,"Raw",A="MN:Raw"$
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//screen output for a fixed length
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//of time.
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Bool old_raw,old_input_filter;
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PUSHFD
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CLI
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old_raw=Raw(ON);
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old_input_filter=LBtr(&Fs->task_flags,TASKf_INPUT_FILTER_TASK);
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Dm(addr,count);
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Busy(mS<<10);
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POPFD
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LBEqual(&Fs->task_flags,TASKf_INPUT_FILTER_TASK,old_input_filter);
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Raw(old_raw);
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}
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I64 *TaskRegAddr(CTask *task,I64 reg_num)
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{
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switch (reg_num) {
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case REG_RAX: return &task->rax;
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case REG_RCX: return &task->rcx;
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case REG_RDX: return &task->rdx;
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case REG_RBX: return &task->rbx;
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case REG_RSP: return &task->rsp;
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case REG_RBP: return &task->rbp;
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case REG_RSI: return &task->rsi;
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case REG_RDI: return &task->rdi;
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case 8 : return &task->r8;
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case 9 : return &task->r9;
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case 10: return &task->r10;
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case 11: return &task->r11;
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case 12: return &task->r12;
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case 13: return &task->r13;
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case 14: return &task->r14;
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case 15: return &task->r15;
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}
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return NULL;
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}
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#define RAWDR_COL (text.cols-40)
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U0 RawDr(CTask *task=NULL)
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{
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I64 i,j,old_col=text.raw_col;
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Bool old_raw=Raw(ON);
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U8 buf[200];
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if (!task) task=Fs;
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for (i=0;i<16;i++) {
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text.raw_col=i*text.cols+RAWDR_COL;
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"<EFBFBD>%3Z:%016X\n",i,"ST_U64_REGS",*TaskRegAddr(task,i);
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}
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text.raw_col=i++*text.cols+RAWDR_COL;
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"<EFBFBD>RIP:%016X\n",task->rip;
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text.raw_col=i++*text.cols+RAWDR_COL;
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"<EFBFBD>%-*tp\n",text.cols-(RAWDR_COL+1)-1,Fs->rip;
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text.raw_col=i++*text.cols+RAWDR_COL;
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'<EFBFBD>';
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if (Bt(&sys_run_level,RLf_COMPILER)) {
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j=Fs->rip;
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Ui(buf,&j,,,TRUE);
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"%s",buf;
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} else
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'\n';
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text.raw_col=i*text.cols+RAWDR_COL;
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'<EFBFBD>';
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for (j=0;j<text.cols-RAWDR_COL-1;j++)
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'<EFBFBD>';
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text.raw_col=old_col;
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Raw(old_raw);
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}
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U0 Dr(CTask *task=NULL)
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{//Dump regs
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I64 i;
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if (!task) task=Fs;
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for (i=0;i<16;i++)
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"%3Z:%016X\n",i,"ST_U64_REGS",*TaskRegAddr(task,i);
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"RIP:%016X\n",task->rip;
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}
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U8 *SysGetStr2(I64)
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{
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U8 buf[512];
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StrNGet(buf,512,FALSE);
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return StrNew(buf);
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}
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CBpt *BptFind(U8 *needle_addr,CTask *haystack_task=NULL,Bool rem=FALSE)
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{
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CBpt *res=NULL,*tmpb,*tmpb1,*tmpb2;
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if (!haystack_task) haystack_task=Fs;
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PUSHFD
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CLI
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tmpb1=&haystack_task->bpt_list;
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tmpb=haystack_task->bpt_list;
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while (tmpb) {
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tmpb2=tmpb->next;
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if (tmpb->addr==needle_addr) {
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res=tmpb;
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if (rem)
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tmpb1->next=tmpb2;
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else
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tmpb1=&tmpb->next;
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} else
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tmpb1=&tmpb->next;
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tmpb=tmpb2;
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}
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POPFD
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return res;
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}
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Bool BptS(U8 *addr,CTask *task=NULL,Bool live=TRUE)
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{//Set breakpoint.
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CBpt *tmpb;
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Bool res=TRUE;
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if (!task) task=Fs;
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PUSHFD
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CLI
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if (!(tmpb=BptFind(addr,task,FALSE))) {
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tmpb=CAlloc(sizeof(CBpt),task);
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tmpb->addr=addr;
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tmpb->val=*addr;
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res=FALSE;
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tmpb->next=task->bpt_list;
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task->bpt_list=tmpb;
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if (task==Fs && live)
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*addr=OC_BPT;
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}
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POPFD
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return res;
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}
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Bool BptR(U8 *addr,CTask *task=NULL,Bool live=TRUE,Bool rem=TRUE)
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{//Remove breakpoint.
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CBpt *tmpb;
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Bool res=FALSE;
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if (!task) task=Fs;
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PUSHFD
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CLI
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if (tmpb=BptFind(addr,task,rem)) {
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if (task==Fs && live)
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*tmpb->addr=tmpb->val;
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res=TRUE;
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if (rem)
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Free(tmpb);
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}
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POPFD
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return res;
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}
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Bool B(U8 *addr,CTask *task=NULL,Bool live=TRUE)
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{//Toggle breakpoint.
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//Return: TRUE if removed.
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Bool res=FALSE;
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PUSHFD
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CLI
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if (BptFind(addr,task,FALSE)) {
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BptR(addr,task,live,TRUE);
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res=TRUE;
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} else
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BptS(addr,task,live);
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POPFD
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return res;
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}
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I64 B2(CTask *task=NULL,Bool live=TRUE)
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{//Remove all breakpoints.
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//Return: count of removed.
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I64 res=0;
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CBpt *tmpb,*tmpb1;
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if (!task) task=Fs;
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PUSHFD
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CLI
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tmpb=task->bpt_list;
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task->bpt_list=NULL;
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while (tmpb) {
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tmpb1=tmpb->next;
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if (task==Fs && live)
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*tmpb->addr=tmpb->val;
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Free(tmpb);
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tmpb=tmpb1;
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res++;
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}
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POPFD
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return res;
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}
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U0 G(U8 *ip=INVALID_PTR,CTask *task=NULL)
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{//Go
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if (!task) task=Fs;
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if (ip!=INVALID_PTR) task->rip=ip;
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if (BptFind(task->rip,task))
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"\nDo one of the following, first:\n"
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">S;\t\t\t//Single step\n"
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">B2;\t\t\t//Clear all break points\n"
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">G2;\t\t\t//Clear all break points and Go\n\n"
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"After resuming, <CTRL-ALT-n> next focus task\n"
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"After resuming, <CTRL-ALT-v> flushes screen VGA cache\n";
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else {
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LBtr(&task->task_flags,TASKf_DISABLE_BPTS);
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LBtr(&task->rflags,RFLAGf_TRAP);//No single step
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Suspend(task,FALSE);
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if (task==Fs) {
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if (IsDebugMode && task->next_cc!=&task->next_cc) {
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"Exit Debug\n";
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Btr(&task->last_cc->flags,CCf_PROMPT);
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}
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} else
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Exit;
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}
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}
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U0 G2(U8 *ip=INVALID_PTR,CTask *task=NULL)
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{//Remove all breakpoints and Go.
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if (!task) task=Fs;
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B2(task);
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if (ext[EXT_WIN_FOCUS])
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CallExtNum(EXT_WIN_FOCUS,debug.focus_task);
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LFBFlush;
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G(ip,task);
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}
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public U0 S(U8 *ip=INVALID_PTR,CTask *task=NULL) //Single-step.
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{//Single step.
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if (!task) task=Fs;
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PUSHFD
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CLI
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if (ip!=INVALID_PTR) task->rip=ip;
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LBts(&task->task_flags,TASKf_DISABLE_BPTS);
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LBts(&task->rflags,RFLAGf_TRAP);
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Suspend(task,FALSE);
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if (task==Fs) {
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if (IsDebugMode) {
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if (task->next_cc!=&task->next_cc)
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Btr(&task->last_cc->flags,CCf_PROMPT);
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}
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} else
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Exit;
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POPFD
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}
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U0 DebugHelp()
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{
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"\n"
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"The cmd line is basically the same as normal. Here are some common\n"
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"debugging commands.\n\n"
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">EdLite(\"FileName\");\t\t//Edit file.\n"
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">D(0x100000);\t\t\t//Dump page tables.\n"
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">Dm(0x100000);\t\t\t//Dump page tables.\n"
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">Dm(Fs,sizeof(CTask));\t\t//Dump current task record.\n"
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">ClassRep(Fs,\"CTask\",1);\t//Dump current task record.\n"
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">ClassRep(Fs,,1);\t\t//(It knows lastclass.)\n"
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">CallerRep;\t\t\t//Stack trace report.\n"
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">Da(_RSP);\t\t\t//Dump stack.\n"
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">Dr;\t\t\t\t//Dump Regs.\n"
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">1+2*3+&Print;\t\t\t//Show calculation res.\n"
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">*(0x70000)(I64 *)=0x123456789;\t//Assign value to 0x70000-0x70007.\n"
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">_RAX=0x1234;\t\t\t//Set RAX to 0x1234.\n"
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">_RIP=&Break;\t\t//Set RIP.\n"
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">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"
|
||
">G2;\t\t\t\t//B2;LFBFlush;WinFocus;G;\n"
|
||
">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";
|
||
}
|
||
|
||
U0 Debug2()
|
||
{
|
||
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);
|
||
}
|
||
|
||
U0 Fault3(I64 fault_num,I64 fault_err_code)
|
||
{
|
||
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
|
||
}
|
||
|
||
U0 Fault2(I64 fault_num,I64 fault_err_code)
|
||
{//Called from $LK,"Fault2",A="FF:::/Kernel/KInterrupts.CC,Fault2"$.
|
||
//$BK,1$Be careful not to swap-out and ruin the saved context$BK,0$
|
||
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 {
|
||
was_mouse_enabled = CallExtStr("MouseHardEnable", FALSE);
|
||
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
|
||
":%p RSP:%08X\n",Fs->rip,Fs->rsp;
|
||
if (fault_num==I_PAGE_FAULT) {
|
||
MOV_RAX_CR2
|
||
i=RAXGet;
|
||
"Fault Addr:%08X:%p\n",i,i;
|
||
}
|
||
Fault3(fault_num,fault_err_code);
|
||
DebugMode(was_in_debug);
|
||
Silent(was_silent);
|
||
Raw(was_raw);
|
||
CallExtStr("MouseHardEnable", was_mouse_enabled);
|
||
text.raw_flags=old_raw_flags;
|
||
}
|
||
SingleUser(was_single_user);
|
||
if (LBtr(&Fs->task_flags,TASKf_KILL_AFTER_DEBUG))
|
||
Exit;
|
||
}
|
||
|
||
U0 Panic(U8 *message=NULL,I64 message_num=0,Bool panic=TRUE)
|
||
{//Enter the debugger with panic?
|
||
PUSHFD
|
||
CLI
|
||
debug.message=message;
|
||
debug.message_num=message_num;
|
||
debug.panic=panic;
|
||
INT I_DEBUG
|
||
POPFD
|
||
}
|
||
|
||
U0 Debug(U8 *message=NULL,I64 message_num=0)
|
||
{//Enter debugger, no panic.
|
||
Panic(message,message_num,FALSE);
|
||
}
|