#include "kernel-ctl.h"
#include "kernel-ioctl.h"
-#define LTTNG_IOCTL_CHECK(fildes, request, ...) ({ \
- int ret = ioctl(fildes, request, ##__VA_ARGS__);\
- assert(ret <= 0); \
- !ret ? 0 : -errno; \
-})
-
-#define LTTNG_IOCTL_NO_CHECK(fildes, request, ...) ({ \
- int ret = ioctl(fildes, request, ##__VA_ARGS__);\
- ret >= 0 ? ret : -errno; \
-})
+#define LTTNG_IOCTL_CHECK(fildes, request, ...) \
+ ({ \
+ int _ioctl_ret = ioctl(fildes, request, ##__VA_ARGS__); \
+ assert(_ioctl_ret <= 0); \
+ !_ioctl_ret ? 0 : -errno; \
+ })
+
+#define LTTNG_IOCTL_NO_CHECK(fildes, request, ...) \
+ ({ \
+ int _ioctl_ret = ioctl(fildes, request, ##__VA_ARGS__); \
+ _ioctl_ret >= 0 ? _ioctl_ret : -errno; \
+ })
/*
* This flag indicates which version of the kernel ABI to use. The old
LTTNG_KERNEL_SESSION_STOP);
}
-int kernctl_filter(int fd, struct lttng_filter_bytecode *filter)
+int kernctl_create_event_notifier_group(int fd)
+{
+ return LTTNG_IOCTL_NO_CHECK(fd,
+ LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_CREATE);
+}
+
+int kernctl_create_event_notifier_group_notification_fd(int group_fd)
+{
+ return LTTNG_IOCTL_NO_CHECK(group_fd,
+ LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD);
+}
+
+int kernctl_create_event_notifier_group_error_counter(int group_fd,
+ const struct lttng_kernel_counter_conf *error_counter_conf)
+{
+ return LTTNG_IOCTL_NO_CHECK(group_fd, LTTNG_KERNEL_COUNTER,
+ error_counter_conf);
+}
+
+int kernctl_counter_get_aggregate_value(int counter_fd,
+ struct lttng_kernel_counter_aggregate *value)
+{
+ return LTTNG_IOCTL_NO_CHECK(counter_fd, LTTNG_KERNEL_COUNTER_AGGREGATE,
+ value);
+}
+
+int kernctl_counter_clear(int counter_fd,
+ struct lttng_kernel_counter_clear *clear)
+{
+ return LTTNG_IOCTL_NO_CHECK(counter_fd, LTTNG_KERNEL_COUNTER_CLEAR,
+ clear);
+}
+
+int kernctl_create_event_notifier(int group_fd,
+ const struct lttng_kernel_event_notifier *event_notifier)
+{
+ return LTTNG_IOCTL_NO_CHECK(group_fd,
+ LTTNG_KERNEL_EVENT_NOTIFIER_CREATE, event_notifier);
+}
+
+int kernctl_capture(int fd, const struct lttng_bytecode *capture)
+{
+ int ret;
+ struct lttng_kernel_capture_bytecode *kb;
+
+ /* Translate bytecode to kernel bytecode. */
+ kb = zmalloc(sizeof(*kb) + capture->len);
+ if (!kb) {
+ ret = -ENOMEM;
+ goto end;
+ }
+
+ kb->len = capture->len;
+ kb->reloc_offset = capture->reloc_table_offset;
+ kb->seqnum = capture->seqnum;
+ memcpy(kb->data, capture->data, capture->len);
+ ret = LTTNG_IOCTL_CHECK(fd, LTTNG_KERNEL_CAPTURE, kb);
+ free(kb);
+end:
+ return ret;
+}
+
+int kernctl_filter(int fd, const struct lttng_bytecode *filter)
{
struct lttng_kernel_filter_bytecode *kb;
uint32_t len;