C++ (Cpp) db_find_breakpoint Examples

Example #1

File: db_break.c Project: alenichev/openbsd-kernel

void
db_set_breakpoint(db_addr_t addr, int count)
{
	db_breakpoint_t	bkpt;

	if (db_find_breakpoint(addr)) {
		db_printf("Already set.\n");
		return;
	}

#ifdef DB_VALID_BREAKPOINT
	if (!DB_VALID_BREAKPOINT(addr)) {
		db_printf("Not a valid address for a breakpoint.\n");
		return;
	}	
#endif

	bkpt = db_breakpoint_alloc();
	if (bkpt == 0) {
		db_printf("Too many breakpoints.\n");
		return;
	}

	bkpt->address = addr;
	bkpt->flags = 0;
	bkpt->init_count = count;
	bkpt->count = count;

	bkpt->link = db_breakpoint_list;
	db_breakpoint_list = bkpt;
}

Example #2

File: db_break.c Project: rohsaini/mkunity

void
db_set_breakpoint(
	task_t		task,
	db_addr_t	addr,
	int		count,
	thread_act_t	thr_act,
	boolean_t	task_bpt)
{
	register db_breakpoint_t bkpt;
	db_breakpoint_t alloc_bkpt = 0;
	vm_offset_t task_thd;

	bkpt = db_find_breakpoint(task, addr);
	if (bkpt) {
	    if (thr_act == THR_ACT_NULL
		|| db_find_thread_breakpoint(bkpt, thr_act)) {
		db_printf("Already set.\n");
		return;
	    }
	} else {
	    if (!DB_CHECK_ACCESS(addr, BKPT_SIZE, task)) {
		if (task) {
		    db_printf("Warning: non-resident page for breakpoint at %lX",
			      addr);
		    db_printf(" in task %lX.\n", task);
		} else {
		    db_printf("Cannot set breakpoint at %lX in kernel space.\n",
			      addr);
		    return;
		}
	    }
	    alloc_bkpt = bkpt = db_breakpoint_alloc();
	    if (bkpt == 0) {
		db_printf("Too many breakpoints.\n");
		return;
	    }
	    bkpt->task = task;
	    bkpt->flags = (task && thr_act == THR_ACT_NULL)?
				(BKPT_USR_GLOBAL|BKPT_1ST_SET): 0;
	    bkpt->address = addr;
	    bkpt->threads = 0;
	}
	if (db_breakpoint_list == 0)
	    db_breakpoint_number = 0;
	task_thd = (task_bpt)	? (vm_offset_t)(thr_act->task)
				: (vm_offset_t)thr_act;
	if (db_add_thread_breakpoint(bkpt, task_thd, count, task_bpt) < 0) {
	    if (alloc_bkpt)
		db_breakpoint_free(alloc_bkpt);
	    db_printf("Too many thread_breakpoints.\n");
	} else {
	    db_printf("set breakpoint #%x\n", db_breakpoint_number);
	    if (alloc_bkpt) {
		bkpt->link = db_breakpoint_list;
		db_breakpoint_list = bkpt;
	    }
	}
}

Example #3

File: db_break.c Project: rohsaini/mkunity

db_thread_breakpoint_t
db_find_thread_breakpoint_here(
	task_t		task,
	db_addr_t	addr)
{
	db_breakpoint_t bkpt;

	bkpt = db_find_breakpoint(task, (db_addr_t)addr);
	if (bkpt == 0)
	    return(0);
	return(db_find_thread_breakpoint(bkpt, current_act()));
}