X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-abi.h;h=dac8658479f52d8079982f742a4bb425a808c10c;hb=1b25fe5879436a90fd22a731e9d3371807e78ba1;hp=8f5c0935cb4037046ca1e1d65ef093396b976761;hpb=29c956bb789f1d96f4283a44e6c5a4032180c3f3;p=lttng-modules.git

diff --git a/lttng-abi.h b/lttng-abi.h
index 8f5c0935..dac86584 100644
--- a/lttng-abi.h
+++ b/lttng-abi.h
@@ -25,6 +25,13 @@
 
 #include <linux/fs.h>
 
+/*
+ * Major/minor version of ABI exposed to lttng tools. Major number
+ * should be increased when an incompatible ABI change is done.
+ */
+#define LTTNG_MODULES_ABI_MAJOR_VERSION		2
+#define LTTNG_MODULES_ABI_MINOR_VERSION		3
+
 #define LTTNG_KERNEL_SYM_NAME_LEN	256
 
 enum lttng_kernel_instrumentation {
@@ -79,12 +86,8 @@ struct lttng_kernel_function_tracer {
 	char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
 } __attribute__((packed));
 
-struct lttng_kernel_syscall {
-	char enable;
-} __attribute__((packed));
-
 /*
- * For syscall tracing, name = '\0' means "enable all".
+ * For syscall tracing, name = "*" means "enable all".
  */
 #define LTTNG_KERNEL_EVENT_PADDING1	16
 #define LTTNG_KERNEL_EVENT_PADDING2	LTTNG_KERNEL_SYM_NAME_LEN + 32
@@ -98,7 +101,6 @@ struct lttng_kernel_event {
 		struct lttng_kernel_kretprobe kretprobe;
 		struct lttng_kernel_kprobe kprobe;
 		struct lttng_kernel_function_tracer ftrace;
-		struct lttng_kernel_syscall syscall;
 		char padding[LTTNG_KERNEL_EVENT_PADDING2];
 	} u;
 } __attribute__((packed));
@@ -109,6 +111,11 @@ struct lttng_kernel_tracer_version {
 	uint32_t patchlevel;
 } __attribute__((packed));
 
+struct lttng_kernel_tracer_abi_version {
+	uint32_t major;
+	uint32_t minor;
+} __attribute__((packed));
+
 enum lttng_kernel_calibrate_type {
 	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
 };
@@ -134,6 +141,11 @@ enum lttng_kernel_context_type {
 	LTTNG_KERNEL_CONTEXT_PPID		= 8,
 	LTTNG_KERNEL_CONTEXT_VPPID		= 9,
 	LTTNG_KERNEL_CONTEXT_HOSTNAME		= 10,
+	LTTNG_KERNEL_CONTEXT_CPU_ID		= 11,
+	LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE	= 12,
+	LTTNG_KERNEL_CONTEXT_PREEMPTIBLE	= 13,
+	LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE	= 14,
+	LTTNG_KERNEL_CONTEXT_MIGRATABLE		= 15,
 };
 
 struct lttng_kernel_perf_counter_ctx {
@@ -154,6 +166,14 @@ struct lttng_kernel_context {
 	} u;
 } __attribute__((packed));
 
+#define LTTNG_KERNEL_FILTER_BYTECODE_MAX_LEN		65536
+struct lttng_kernel_filter_bytecode {
+	uint32_t len;
+	uint32_t reloc_offset;
+	uint64_t seqnum;
+	char data[0];
+} __attribute__((packed));
+
 /* LTTng file descriptor ioctl */
 #define LTTNG_KERNEL_SESSION			_IO(0xF6, 0x45)
 #define LTTNG_KERNEL_TRACER_VERSION		\
@@ -163,6 +183,8 @@ struct lttng_kernel_context {
 #define LTTNG_KERNEL_CALIBRATE			\
 	_IOWR(0xF6, 0x49, struct lttng_kernel_calibrate)
 #define LTTNG_KERNEL_SYSCALL_LIST		_IO(0xF6, 0x4A)
+#define LTTNG_KERNEL_TRACER_ABI_VERSION		\
+	_IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
 
 /* Session FD ioctl */
 #define LTTNG_KERNEL_METADATA			\
@@ -171,6 +193,19 @@ struct lttng_kernel_context {
 	_IOW(0xF6, 0x55, struct lttng_kernel_channel)
 #define LTTNG_KERNEL_SESSION_START		_IO(0xF6, 0x56)
 #define LTTNG_KERNEL_SESSION_STOP		_IO(0xF6, 0x57)
+#define LTTNG_KERNEL_SESSION_TRACK_PID		\
+	_IOR(0xF6, 0x58, int32_t)
+#define LTTNG_KERNEL_SESSION_UNTRACK_PID	\
+	_IOR(0xF6, 0x59, int32_t)
+/*
+ * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
+ * are generating two different ioctl numbers, but this was not done on
+ * purpose. We should generally try to avoid those duplications.
+ */
+#define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS	_IO(0xF6, 0x58)
+#define LTTNG_KERNEL_SESSION_METADATA_REGEN	_IO(0xF6, 0x59)
+/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */
+#define LTTNG_KERNEL_SESSION_STATEDUMP		_IO(0xF6, 0x5C)
 
 /* Channel FD ioctl */
 #define LTTNG_KERNEL_STREAM			_IO(0xF6, 0x62)
@@ -187,6 +222,9 @@ struct lttng_kernel_context {
 #define LTTNG_KERNEL_ENABLE			_IO(0xF6, 0x82)
 #define LTTNG_KERNEL_DISABLE			_IO(0xF6, 0x83)
 
+/* Event FD ioctl */
+#define LTTNG_KERNEL_FILTER			_IO(0xF6, 0x90)
+
 /* LTTng-specific ioctls for the lib ringbuffer */
 /* returns the timestamp begin of the current sub-buffer */
 #define LTTNG_RING_BUFFER_GET_TIMESTAMP_BEGIN	_IOR(0xF6, 0x20, uint64_t)
@@ -202,6 +240,10 @@ struct lttng_kernel_context {
 #define LTTNG_RING_BUFFER_GET_STREAM_ID		_IOR(0xF6, 0x25, uint64_t)
 /* returns the current timestamp */
 #define LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP	_IOR(0xF6, 0x26, uint64_t)
+/* returns the packet sequence number */
+#define LTTNG_RING_BUFFER_GET_SEQ_NUM		_IOR(0xF6, 0x27, uint64_t)
+/* returns the stream instance id */
+#define LTTNG_RING_BUFFER_INSTANCE_ID		_IOR(0xF6, 0x28, uint64_t)
 
 #ifdef CONFIG_COMPAT
 /* returns the timestamp begin of the current sub-buffer */
@@ -225,6 +267,12 @@ struct lttng_kernel_context {
 /* returns the current timestamp */
 #define LTTNG_RING_BUFFER_COMPAT_GET_CURRENT_TIMESTAMP \
 	LTTNG_RING_BUFFER_GET_CURRENT_TIMESTAMP
+/* returns the packet sequence number */
+#define LTTNG_RING_BUFFER_COMPAT_GET_SEQ_NUM	\
+	LTTNG_RING_BUFFER_GET_SEQ_NUM
+/* returns the stream instance id */
+#define LTTNG_RING_BUFFER_COMPAT_INSTANCE_ID	\
+	LTTNG_RING_BUFFER_INSTANCE_ID
 #endif /* CONFIG_COMPAT */
 
 #endif /* _LTTNG_ABI_H */