SoW-2019-0002: Dynamic Snapshot

[deliverable/lttng-modules.git] / lttng-abi.h

diff --git a/lttng-abi.h b/lttng-abi.h
index 1d356ab17440806ee9a3f0a8ac94eee759e6a978..9cd0293dd3ab076621f0e089f49245e3035261b5 100644 (file)
--- a/lttng-abi.h
+++ b/lttng-abi.h
@@ -110,6 +110,24 @@ struct lttng_kernel_event {
        } u;
 } __attribute__((packed));
 
+#define LTTNG_KERNEL_TRIGGER_PADDING1  16
+#define LTTNG_KERNEL_TRIGGER_PADDING2  LTTNG_KERNEL_SYM_NAME_LEN + 32
+struct lttng_kernel_trigger {
+       uint64_t id;
+       char name[LTTNG_KERNEL_SYM_NAME_LEN];   /* event name */
+       enum lttng_kernel_instrumentation instrumentation;
+       char padding[LTTNG_KERNEL_TRIGGER_PADDING1];
+
+       /* Per instrumentation type configuration */
+       union {
+               struct lttng_kernel_kretprobe kretprobe;
+               struct lttng_kernel_kprobe kprobe;
+               struct lttng_kernel_function_tracer ftrace;
+               struct lttng_kernel_uprobe uprobe;
+               char padding[LTTNG_KERNEL_TRIGGER_PADDING2];
+       } u;
+} __attribute__((packed));
+
 struct lttng_kernel_tracer_version {
        uint32_t major;
        uint32_t minor;
@@ -236,6 +254,13 @@ struct lttng_kernel_tracker_args {
 #define LTTNG_KERNEL_SYSCALL_LIST              _IO(0xF6, 0x4A)
 #define LTTNG_KERNEL_TRACER_ABI_VERSION                \
        _IOR(0xF6, 0x4B, struct lttng_kernel_tracer_abi_version)
+#define LTTNG_KERNEL_TRIGGER_GROUP_CREATE      _IO(0xF6, 0x4C)
+
+/* Trigger group file descriptor ioctl */
+#define LTTNG_KERNEL_TRIGGER_GROUP_NOTIFICATION_FD \
+       _IO(0xF6, 0x30)
+#define LTTNG_KERNEL_TRIGGER_CREATE            \
+       _IOW(0xF6, 0x31, struct lttng_kernel_trigger)
 
 /* Session FD ioctl */
 /* lttng-abi-old.h reserve 0x50, 0x51, 0x52, and 0x53. */