static void
get_stack_for_address_enumerator(mach_stack_logging_record_t stack_record, void *task_ptr)
{
uint32_t num_frames = 0;
kern_return_t err = __mach_stack_logging_frames_for_uniqued_stack (*(task_t *)task_ptr,
stack_record.stack_identifier,
g_stack_frames,
MAX_FRAMES,
&num_frames);
g_malloc_stack_history.resize(g_malloc_stack_history.size() + 1);
g_malloc_stack_history.back().address = (void *)stack_record.address;
g_malloc_stack_history.back().type_flags = stack_record.type_flags;
g_malloc_stack_history.back().argument = stack_record.argument;
if (num_frames > 0)
g_malloc_stack_history.back().frames.assign(g_stack_frames, g_stack_frames + num_frames);
g_malloc_stack_history.back().frames.push_back(0); // Terminate the frames with zero
}
bool
MachTask::EnumerateMallocFrames (MachMallocEventId event_id,
mach_vm_address_t *function_addresses_buffer,
uint32_t buffer_size,
uint32_t *count)
{
if (!function_addresses_buffer || !count)
return false;
if (buffer_size == 0)
return false;
__mach_stack_logging_frames_for_uniqued_stack(m_task, event_id, &function_addresses_buffer[0], buffer_size, count);
*count -= 1;
if (function_addresses_buffer[*count-1] < PageSize())
*count -= 1;
return (*count > 0);
}
static void
get_stack_for_address_enumerator(mach_stack_logging_record_t stack_record, void *task_ptr)
{
malloc_stack_entry *stack_entry = g_malloc_stack_history.next();
if (stack_entry)
{
stack_entry->address = (void *)stack_record.address;
stack_entry->type_flags = stack_record.type_flags;
stack_entry->argument = stack_record.argument;
stack_entry->num_frames = 0;
stack_entry->frames[0] = 0;
kern_return_t err = __mach_stack_logging_frames_for_uniqued_stack (*(task_t *)task_ptr,
stack_record.stack_identifier,
stack_entry->frames,
MAX_FRAMES,
&stack_entry->num_frames);
// Terminate the frames with zero if there is room
if (stack_entry->num_frames < MAX_FRAMES)
stack_entry->frames[stack_entry->num_frames] = 0;
}
}
