int32_t met_vp_init(tracer_handle_t self)
{
if (met_tag_init()<0) {
printf("Error:Cannot init mtag libs\n");
}
return 0;
}
int tag_reg(struct file_operations * const fops, struct kobject *kobj)
{
int ret;
kobj_tag = kobject_create_and_add("tag", kobj);
if (kobj_tag == NULL) {
ERRF("can not create kobject: kobj_bus\n");
return -1;
}
ret = sysfs_create_file(kobj_tag, &enable_attr.attr);
if (ret != 0) {
ERRF("Failed to create enable in sysfs\n");
kobject_del(kobj_tag);
kobject_put(kobj_tag);
kobj_tag = NULL;
return ret;
}
ret = sysfs_create_file(kobj_tag, &dump_buffer_attr.attr);
if (ret != 0) {
ERRF("Failed to create dump_buffer in sysfs\n");
sysfs_remove_file(kobj_tag, &enable_attr.attr);
kobject_del(kobj_tag);
kobject_put(kobj_tag);
kobj_tag = NULL;
return ret;
}
ret = sysfs_create_file(kobj_tag, &options_attr.attr);
if (ret != 0) {
ERRF("Failed to create options in sysfs\n");
sysfs_remove_file(kobj_tag, &enable_attr.attr);
sysfs_remove_file(kobj_tag, &dump_buffer_attr.attr);
kobject_del(kobj_tag);
kobject_put(kobj_tag);
kobj_tag = NULL;
return ret;
}
fops->open = met_open;
fops->release = met_close;
fops->unlocked_ioctl = met_ioctl;
fops->read = met_read;
fops->write = met_write;
met_tag_init();
met_ext_api.met_tag_start = met_tag_start_real;
met_ext_api.met_tag_end = met_tag_end_real;
met_ext_api.met_tag_oneshot = met_tag_oneshot_real;
met_ext_api.met_tag_dump = met_tag_dump_real;
met_ext_api.met_tag_disable = met_tag_disable_real;
met_ext_api.met_tag_enable = met_tag_enable_real;
met_ext_api.met_set_dump_buffer = met_set_dump_buffer_real;
met_ext_api.met_save_dump_buffer = met_save_dump_buffer_real;
met_ext_api.met_save_log = met_save_log_real;
return 0;
}
