예제 #1
0
파일: machine.c 프로젝트: arunmdavid/linux
int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
{
	map_groups__init(&machine->kmaps);
	RB_CLEAR_NODE(&machine->rb_node);
	INIT_LIST_HEAD(&machine->user_dsos);
	INIT_LIST_HEAD(&machine->kernel_dsos);

	machine->threads = RB_ROOT;
	INIT_LIST_HEAD(&machine->dead_threads);
	machine->last_match = NULL;

	machine->kmaps.machine = machine;
	machine->pid = pid;

	machine->symbol_filter = NULL;
	machine->id_hdr_size = 0;

	machine->root_dir = strdup(root_dir);
	if (machine->root_dir == NULL)
		return -ENOMEM;

	if (pid != HOST_KERNEL_ID) {
		struct thread *thread = machine__findnew_thread(machine, 0,
								pid);
		char comm[64];

		if (thread == NULL)
			return -ENOMEM;

		snprintf(comm, sizeof(comm), "[guest/%d]", pid);
		thread__set_comm(thread, comm, 0);
	}

	return 0;
}
예제 #2
0
static struct thread *thread__new(pid_t pid)
{
	struct thread *self = zalloc(sizeof(*self));

	if (self != NULL) {
		map_groups__init(&self->mg);
		self->pid = pid;
		self->comm = malloc(32);
		if (self->comm)
			snprintf(self->comm, 32, ":%d", self->pid);
	}

	return self;
}
예제 #3
0
struct perf_session *perf_session__new(const char *filename, int mode, bool force)
{
	size_t len = filename ? strlen(filename) + 1 : 0;
	struct perf_session *self = zalloc(sizeof(*self) + len);

	if (self == NULL)
		goto out;

	if (perf_header__init(&self->header) < 0)
		goto out_free;

	memcpy(self->filename, filename, len);
	self->threads = RB_ROOT;
	self->last_match = NULL;
	self->mmap_window = 32;
	self->cwd = NULL;
	self->cwdlen = 0;
	self->unknown_events = 0;
	map_groups__init(&self->kmaps);

	if (mode == O_RDONLY) {
		if (perf_session__open(self, force) < 0)
			goto out_delete;
	} else if (mode == O_WRONLY) {
		/*
		 * In O_RDONLY mode this will be performed when reading the
		 * kernel MMAP event, in event__process_mmap().
		 */
		if (perf_session__create_kernel_maps(self) < 0)
			goto out_delete;
	}

	self->sample_type = perf_header__sample_type(&self->header);
out:
	return self;
out_free:
	free(self);
	return NULL;
out_delete:
	perf_session__delete(self);
	return NULL;
}