from xnu import *
from utils import *
from process import *
@lldb_command('showinterrupts')
def ShowInterrupts(cmd_args=None):
""" Prints IRQ, IPI and TMR counts for each CPU
"""
bcdata = kern.GetValueFromAddress(kern.GetLoadAddressForSymbol('BootCpuData'), 'cpu_data_t *')
print "CPU 0 IRQ: {:d}\n".format(bcdata.cpu_stat.irq_ex_cnt)
print "CPU 0 IPI: {:d}\n".format(bcdata.cpu_stat.ipi_cnt)
print "CPU 0 TMR: {:d}\n".format(bcdata.cpu_stat.timer_cnt)
if (kern.globals.machine_info.physical_cpu == 2):
if kern.arch == 'arm':
cdentries = kern.GetValueFromAddress(kern.GetLoadAddressForSymbol('CpuDataEntries') + 20, 'uintptr_t *')
cpu_data_entry = Cast(dereference(cdentries), 'cpu_data_t *')
print "CPU 1 IRQ: {:d}\n".format(cpu_data_entry.cpu_stat.irq_ex_cnt)
print "CPU 1 IPI: {:d}\n".format(cpu_data_entry.cpu_stat.ipi_cnt)
print "CPU 1 TMR: {:d}\n".format(cpu_data_entry.cpu_stat.timer_cnt)
elif kern.arch == 'arm64':
cdentries = kern.GetValueFromAddress(kern.GetLoadAddressForSymbol('CpuDataEntries') + 24, 'uintptr_t *')
cpu_data_entry = Cast(dereference(cdentries), 'cpu_data_t *')
print "CPU 1 IRQ: {:d}\n".format(cpu_data_entry.cpu_stat.irq_ex_cnt)
print "CPU 1 IPI: {:d}\n".format(cpu_data_entry.cpu_stat.ipi_cnt)
print "CPU 1 TMR: {:d}\n".format(cpu_data_entry.cpu_stat.timer_cnt)
@lldb_command('showactiveinterrupts')
def ShowActiveInterrupts(cmd_args=None):
""" Prints the interrupts that are unmasked & active with the Interrupt Controller
Usage: showactiveinterrupts <address of Interrupt Controller object>
"""
if not cmd_args:
print "No arguments passed"
print ShowActiveInterrupts.__doc__
return False
aic = kern.GetValueFromAddress(cmd_args[0], 'AppleInterruptController *')
if not aic:
print "unknown arguments:", str(cmd_args)
return False
aic_base = unsigned(aic._aicBaseAddress)
current_interrupt = 0
aic_imc_base = aic_base + 0x4180
aic_him_offset = 0x80
current_pointer = aic_imc_base
unmasked = dereference(kern.GetValueFromAddress(current_pointer, 'uintptr_t *'))
active = dereference(kern.GetValueFromAddress(current_pointer + aic_him_offset, 'uintptr_t *'))
group_count = 0
mask = 1
while current_interrupt < 192:
if (((unmasked & mask) == 0) and (active & mask)):
print "Interrupt {:d} unmasked and active\n".format(current_interrupt)
current_interrupt = current_interrupt + 1
if (current_interrupt % 32 == 0):
mask = 1
group_count = group_count + 1
unmasked = dereference(kern.GetValueFromAddress(current_pointer + (4 * group_count), 'uintptr_t *'))
active = dereference(kern.GetValueFromAddress((current_pointer + aic_him_offset) + (4 * group_count), 'uintptr_t *'))
else:
mask = mask << 1