Fix: build for architectures without HAVE_SYSCALL_TRACEPOINTS

[lttng-modules.git] / lttng-events.h

diff --git a/lttng-events.h b/lttng-events.h
index aeb2a6b25631242f76b81cf7ffb698a93ae9cee3..e5cd0eeadeb6198b20958c34f68f517b13aa6710 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -236,6 +236,10 @@ struct lttng_channel_ops {
                                      const void *src, size_t len);
        void (*event_memset)(struct lib_ring_buffer_ctx *ctx,
                             int c, size_t len);
+       void (*event_strcpy)(struct lib_ring_buffer_ctx *ctx, const char *src,
+                            size_t len);
+       void (*event_strcpy_from_user)(struct lib_ring_buffer_ctx *ctx,
+                                      const char __user *src, size_t len);
        /*
         * packet_avail_size returns the available size in the current
         * packet. Note that the size returned is only a hint, since it
@@ -276,6 +280,8 @@ struct lttng_transport {
        struct lttng_channel_ops ops;
 };
 
+struct lttng_syscall_filter;
+
 struct lttng_channel {
        unsigned int id;
        struct channel *chan;           /* Channel buffers */
@@ -290,12 +296,19 @@ struct lttng_channel {
        struct lttng_transport *transport;
        struct lttng_event **sc_table;  /* for syscall tracing */
        struct lttng_event **compat_sc_table;
+       struct lttng_event **sc_exit_table;     /* for syscall exit tracing */
+       struct lttng_event **compat_sc_exit_table;
        struct lttng_event *sc_unknown; /* for unknown syscalls */
        struct lttng_event *sc_compat_unknown;
-       struct lttng_event *sc_exit;    /* for syscall exit */
+       struct lttng_event *sc_exit_unknown;
+       struct lttng_event *compat_sc_exit_unknown;
+       struct lttng_syscall_filter *sc_filter;
        int header_type;                /* 0: unset, 1: compact, 2: large */
        enum channel_type channel_type;
-       unsigned int metadata_dumped:1;
+       unsigned int metadata_dumped:1,
+               sys_enter_registered:1,
+               sys_exit_registered:1,
+               syscall_all:1;
 };
 
 struct lttng_metadata_stream {
@@ -307,6 +320,7 @@ struct lttng_metadata_stream {
        wait_queue_head_t read_wait;    /* Reader buffer-level wait queue */
        struct list_head list;          /* Stream list */
        struct lttng_transport *transport;
+       struct mutex lock;
 };
 
 struct lttng_session {
@@ -328,6 +342,7 @@ struct lttng_metadata_cache {
        unsigned int metadata_written;  /* Number of bytes written in metadata cache */
        struct kref refcount;           /* Metadata cache usage */
        struct list_head metadata_stream;       /* Metadata stream list */
+       uuid_le uuid;                   /* Trace session unique ID (copy) */
 };
 
 struct lttng_session *lttng_session_create(void);
@@ -386,6 +401,13 @@ int lttng_metadata_output_channel(struct lttng_metadata_stream *stream,
 #if defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS)
 int lttng_syscalls_register(struct lttng_channel *chan, void *filter);
 int lttng_syscalls_unregister(struct lttng_channel *chan);
+int lttng_syscall_filter_enable(struct lttng_channel *chan,
+               const char *name);
+int lttng_syscall_filter_disable(struct lttng_channel *chan,
+               const char *name);
+long lttng_channel_syscall_mask(struct lttng_channel *channel,
+               struct lttng_kernel_syscall_mask __user *usyscall_mask);
+int lttng_abi_syscall_list(void);
 #else
 static inline int lttng_syscalls_register(struct lttng_channel *chan, void *filter)
 {
@@ -396,6 +418,33 @@ static inline int lttng_syscalls_unregister(struct lttng_channel *chan)
 {
        return 0;
 }
+
+static inline
+int lttng_syscall_filter_enable(struct lttng_channel *chan,
+               const char *name)
+{
+       return -ENOSYS;
+}
+
+static inline
+int lttng_syscall_filter_disable(struct lttng_channel *chan,
+               const char *name)
+{
+       return -ENOSYS;
+}
+
+static inline
+long lttng_channel_syscall_mask(struct lttng_channel *channel,
+               struct lttng_kernel_syscall_mask __user *usyscall_mask)
+{
+       return -ENOSYS;
+}
+
+static inline
+int lttng_abi_syscall_list(void)
+{
+       return -ENOSYS;
+}
 #endif
 
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
@@ -525,6 +574,7 @@ void lttng_ftrace_destroy_private(struct lttng_event *event)
 int lttng_calibrate(struct lttng_kernel_calibrate *calibrate);
 
 extern const struct file_operations lttng_tracepoint_list_fops;
+extern const struct file_operations lttng_syscall_list_fops;
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 #define TRACEPOINT_HAS_DATA_ARG