Makefile: do not run depmod manually
[lttng-modules.git] / ltt-debugfs-abi.h
index 9524cb03f6d7a5e83b2b0ae730db279a2cb0ed80..42bc9fd26e5b9f5d8df27180c45dac5426edb97b 100644 (file)
@@ -19,6 +19,17 @@ enum lttng_kernel_instrumentation {
        LTTNG_KERNEL_TRACEPOINT = 0,
        LTTNG_KERNEL_KPROBE     = 1,
        LTTNG_KERNEL_FUNCTION   = 2,
+       LTTNG_KERNEL_KRETPROBE  = 3,
+       LTTNG_KERNEL_NOOP       = 4,    /* not hooked */
+       LTTNG_KERNEL_SYSCALL    = 5,
+};
+
+/*
+ * LTTng consumer mode
+ */
+enum lttng_kernel_output {
+       LTTNG_KERNEL_SPLICE     = 0,
+       LTTNG_KERNEL_MMAP       = 1,
 };
 
 /*
@@ -31,6 +42,14 @@ struct lttng_kernel_channel {
        uint64_t num_subbuf;
        unsigned int switch_timer_interval;     /* usecs */
        unsigned int read_timer_interval;       /* usecs */
+       enum lttng_kernel_output output;        /* splice, mmap */
+};
+
+struct lttng_kernel_kretprobe {
+       uint64_t addr;
+
+       uint64_t offset;
+       char symbol_name[LTTNG_SYM_NAME_LEN];
 };
 
 /*
@@ -47,11 +66,15 @@ struct lttng_kernel_function_tracer {
        char symbol_name[LTTNG_SYM_NAME_LEN];
 };
 
+/*
+ * For syscall tracing, name = '\0' means "enable all".
+ */
 struct lttng_kernel_event {
        char name[LTTNG_SYM_NAME_LEN];  /* event name */
        enum lttng_kernel_instrumentation instrumentation;
        /* Per instrumentation type configuration */
        union {
+               struct lttng_kernel_kretprobe kretprobe;
                struct lttng_kernel_kprobe kprobe;
                struct lttng_kernel_function_tracer ftrace;
        } u;
@@ -63,10 +86,18 @@ struct lttng_kernel_tracer_version {
        uint32_t sublevel;
 };
 
+enum lttng_kernel_calibrate_type {
+       LTTNG_KERNEL_CALIBRATE_KRETPROBE,
+};
+
+struct lttng_kernel_calibrate {
+       enum lttng_kernel_calibrate_type type;  /* type (input) */
+};
+
 enum lttng_kernel_context_type {
        LTTNG_KERNEL_CONTEXT_PID                = 0,
        LTTNG_KERNEL_CONTEXT_PERF_COUNTER       = 1,
-       LTTNG_KERNEL_CONTEXT_COMM               = 2,
+       LTTNG_KERNEL_CONTEXT_PROCNAME           = 2,
        LTTNG_KERNEL_CONTEXT_PRIO               = 3,
        LTTNG_KERNEL_CONTEXT_NICE               = 4,
        LTTNG_KERNEL_CONTEXT_VPID               = 5,
@@ -95,6 +126,8 @@ struct lttng_kernel_context {
        _IOR(0xF6, 0x41, struct lttng_kernel_tracer_version)
 #define LTTNG_KERNEL_TRACEPOINT_LIST           _IO(0xF6, 0x42)
 #define LTTNG_KERNEL_WAIT_QUIESCENT            _IO(0xF6, 0x43)
+#define LTTNG_KERNEL_CALIBRATE                 \
+       _IOWR(0xF6, 0x44, struct lttng_kernel_calibrate)
 
 /* Session FD ioctl */
 #define LTTNG_KERNEL_METADATA                  \
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