#define _LTTNG_ABI_H
#include <linux/fs.h>
+#include <linux/types.h>
/*
* Major/minor version of ABI exposed to lttng tools. Major number
} __attribute__((packed));
enum lttng_kernel_syscall_entryexit {
- LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
- LTTNG_KERNEL_SYSCALL_ENTRY = 1, /* Not implemented. */
- LTTNG_KERNEL_SYSCALL_EXIT = 2, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
+ LTTNG_KERNEL_SYSCALL_ENTRY = 1,
+ LTTNG_KERNEL_SYSCALL_EXIT = 2,
};
enum lttng_kernel_syscall_abi {
LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
- LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, /* Not implemented. */
- LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1,
+ LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2,
};
enum lttng_kernel_syscall_match {
- LTTNG_SYSCALL_MATCH_NAME = 0,
- LTTNG_SYSCALL_MATCH_NR = 1, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0,
+ LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, /* Not implemented. */
};
struct lttng_kernel_syscall {
#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1 16
struct lttng_kernel_event_notifier {
struct lttng_kernel_event event;
+ uint64_t error_counter_index;
char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1];
} __attribute__((packed));
+enum lttng_kernel_counter_arithmetic {
+ LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 1,
+};
+
+enum lttng_kernel_counter_bitness {
+ LTTNG_KERNEL_COUNTER_BITNESS_32 = 1,
+ LTTNG_KERNEL_COUNTER_BITNESS_64 = 2,
+};
+
+struct lttng_kernel_counter_dimension {
+ uint64_t size;
+ uint64_t underflow_index;
+ uint64_t overflow_index;
+ uint8_t has_underflow;
+ uint8_t has_overflow;
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 4
+struct lttng_kernel_counter_conf {
+ uint32_t arithmetic; /* enum lttng_kernel_counter_arithmetic */
+ uint32_t bitness; /* enum lttng_kernel_counter_bitness */
+ uint32_t number_dimensions;
+ int64_t global_sum_step;
+ struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+} __attribute__((packed));
+
+struct lttng_kernel_counter_index {
+ uint32_t number_dimensions;
+ uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+} __attribute__((packed));
+
+struct lttng_kernel_counter_value {
+ int64_t value;
+ uint8_t underflow;
+ uint8_t overflow;
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_READ_PADDING 32
+struct lttng_kernel_counter_read {
+ struct lttng_kernel_counter_index index;
+ int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */
+ struct lttng_kernel_counter_value value; /* output */
+ char padding[LTTNG_KERNEL_COUNTER_READ_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING 32
+struct lttng_kernel_counter_aggregate {
+ struct lttng_kernel_counter_index index;
+ struct lttng_kernel_counter_value value; /* output */
+ char padding[LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_CLEAR_PADDING 32
+struct lttng_kernel_counter_clear {
+ struct lttng_kernel_counter_index index;
+ char padding[LTTNG_KERNEL_COUNTER_CLEAR_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
+struct lttng_kernel_event_notifier_notification {
+ uint64_t token;
+ uint16_t capture_buf_size;
+ char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING];
+} __attribute__((packed));
+
struct lttng_kernel_tracer_version {
uint32_t major;
uint32_t minor;
char data[0];
} __attribute__((packed));
+#define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN 65536
+struct lttng_kernel_capture_bytecode {
+ uint32_t len;
+ uint32_t reloc_offset;
+ uint64_t seqnum;
+ char data[0];
+} __attribute__((packed));
+
enum lttng_kernel_tracker_type {
LTTNG_KERNEL_TRACKER_UNKNOWN = -1,
#define LTTNG_KERNEL_CONTEXT \
_IOW(0xF6, 0x71, struct lttng_kernel_context)
-/* Event, Event notifier, Channel and Session ioctl */
+/* Event, Event notifier, Channel, Counter and Session ioctl */
/* lttng/abi-old.h reserve 0x80 and 0x81. */
#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
+/* Trigger group and session ioctl */
+#define LTTNG_KERNEL_COUNTER \
+ _IOW(0xF6, 0x84, struct lttng_kernel_counter_conf)
+
/* Event and Event notifier FD ioctl */
#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \
_IO(0xF6, 0xB1)
+/* Event notifier file descriptor ioctl */
+#define LTTNG_KERNEL_CAPTURE _IO(0xF6, 0xB8)
+
+/* Counter file descriptor ioctl */
+#define LTTNG_KERNEL_COUNTER_READ \
+ _IOWR(0xF6, 0xC0, struct lttng_kernel_counter_read)
+#define LTTNG_KERNEL_COUNTER_AGGREGATE \
+ _IOWR(0xF6, 0xC1, struct lttng_kernel_counter_aggregate)
+#define LTTNG_KERNEL_COUNTER_CLEAR \
+ _IOW(0xF6, 0xC2, struct lttng_kernel_counter_clear)
+
+
/*
* LTTng-specific ioctls for the lib ringbuffer.
*