#define DEBUG_TRACE_SWITCH 0
#define DEBUG_DISABLE_DOUBLEFAULT 1
#define DEBUG_VERY_SLOW_PERIOD 0
+#define DEBUG_NOPREEMPT 1
// === CONSTANTS ===
// Base is 1193182
*/
void Proc_Start(void)
{
- int tid;
#if USE_MP
int i;
#endif
if(i) gaCPUs[i].Current = NULL;
// Create Idle Task
- tid = Proc_NewKThread(Proc_IdleThread, &gaCPUs[i]);
+ Proc_NewKThread(Proc_IdleThread, &gaCPUs[i]);
// Start the AP
if( i != giProc_BootProcessorID ) {
while( giNumInitingCPUs ) __asm__ __volatile__ ("hlt");
#else
// Create Idle Task
- tid = Proc_NewKThread(Proc_IdleThread, &gaCPUs[0]);
-// gaCPUs[0].IdleThread = Threads_GetThread(tid);
+ Proc_NewKThread(Proc_IdleThread, &gaCPUs[0]);
// Set current task
gaCPUs[0].Current = &gThreadZero;
tTID Proc_NewKThread(void (*Fcn)(void*), void *Data)
{
Uint esp;
- tThread *newThread, *cur;
+ tThread *newThread;
- cur = Proc_GetCurThread();
newThread = Threads_CloneTCB(0);
if(!newThread) return -1;
// Check Prospective Space
for( i = USER_STACK_SZ >> 12; i--; )
- if( MM_GetPhysAddr( base + (i<<12) ) != 0 )
+ if( MM_GetPhysAddr( (void*)(base + (i<<12)) ) != 0 )
break;
if(i != -1) return 0;
__asm__ __volatile__ ("mov %%ebp, %0" : "=r" (stack));
while( maxBacktraceDistance -- )
{
+ if( !CheckMem(stack, 8) ) {
+ regs = NULL;
+ break;
+ }
// [ebp] = oldEbp
// [ebp+4] = retaddr
outb(0x20, 0x20);
__asm__ __volatile__ ("sti");
- gaCPUs[CPU].LastTimerThread = gaCPUs[CPU].Current;
// Call the timer update code
Timer_CallTimers();
+ #if !DEBUG_NOPREEMPT
// If two ticks happen within the same task, and it's not an idle task, swap
if( gaCPUs[CPU].Current->TID > giNumCPUs && gaCPUs[CPU].Current == gaCPUs[CPU].LastTimerThread )
{
Proc_Reschedule();
}
+
+ gaCPUs[CPU].LastTimerThread = gaCPUs[CPU].Current;
+ #endif
}
// === EXPORTS ===