Update TODO

[lttng-modules.git] / ltt-tracer.h

diff --git a/ltt-tracer.h b/ltt-tracer.h
index d98d9d0c98214f5f87e22fb557f0dccf4122e147..a21c38ca3f330f660dbd29f7f5c374935669962f 100644 (file)
--- a/ltt-tracer.h
+++ b/ltt-tracer.h
@@ -35,73 +35,6 @@
 
 /* Number of bytes to log with a read/write event */
 #define LTT_LOG_RW_SIZE                        32L
-
-/* Maximum number of callbacks per marker */
-#define LTT_NR_CALLBACKS       10
-
-struct ltt_serialize_closure;
-
-/* Serialization callback */
-typedef size_t (*ltt_serialize_cb)(struct lib_ring_buffer *buf,
-                                  size_t buf_offset,
-                                  struct ltt_serialize_closure *closure,
-                                  void *serialize_private,
-                                  unsigned int stack_pos_ctx,
-                                  int *largest_align,
-                                  const char *fmt, va_list *args);
-
-struct ltt_serialize_closure {
-       ltt_serialize_cb *callbacks;
-       long cb_args[LTT_NR_CALLBACKS];
-       unsigned int cb_idx;
-};
-
-size_t ltt_serialize_data(struct lib_ring_buffer *buf, size_t buf_offset,
-                         struct ltt_serialize_closure *closure,
-                         void *serialize_private, unsigned int stack_pos_ctx,
-                         int *largest_align, const char *fmt, va_list *args);
-
-enum ltt_channels {
-       LTT_CHANNEL_METADATA,
-       LTT_CHANNEL_FD_STATE,
-       LTT_CHANNEL_GLOBAL_STATE,
-       LTT_CHANNEL_IRQ_STATE,
-       LTT_CHANNEL_MODULE_STATE,
-       LTT_CHANNEL_NETIF_STATE,
-       LTT_CHANNEL_SOFTIRQ_STATE,
-       LTT_CHANNEL_SWAP_STATE,
-       LTT_CHANNEL_SYSCALL_STATE,
-       LTT_CHANNEL_TASK_STATE,
-       LTT_CHANNEL_VM_STATE,
-       LTT_CHANNEL_FS,
-       LTT_CHANNEL_INPUT,
-       LTT_CHANNEL_IPC,
-       LTT_CHANNEL_KERNEL,
-       LTT_CHANNEL_MM,
-       LTT_CHANNEL_RCU,
-       LTT_CHANNEL_DEFAULT,
-};
-
-/*
- * Hardcoded event headers
- *
- * event header for a trace with active heartbeat : 27 bits timestamps
- *
- * headers are 32-bits aligned. In order to insure such alignment, a dynamic per
- * trace alignment value must be done.
- *
- * Remember that the C compiler does align each member on the boundary
- * equivalent to their own size.
- *
- * As relay subbuffers are aligned on pages, we are sure that they are 4 and 8
- * bytes aligned, so the buffer header and trace header are aligned.
- *
- * Event headers are aligned depending on the trace alignment option.
- *
- * Note using C structure bitfields for cross-endianness and portability
- * concerns.
- */
-
 #define LTT_MAX_SMALL_SIZE             0xFFFFU
 
 #ifdef RING_BUFFER_ALIGN
@@ -113,6 +46,12 @@ enum ltt_channels {
 /* Tracer properties */
 #define CTF_MAGIC_NUMBER               0xC1FC1FC1
 #define TSDL_MAGIC_NUMBER              0x75D11D57
+
+/* CTF specification version followed */
+#define CTF_SPEC_MAJOR                 1
+#define CTF_SPEC_MINOR                 8
+
+/* Tracer major/minor versions */
 #define CTF_VERSION_MAJOR              0
 #define CTF_VERSION_MINOR              1
 
@@ -122,53 +61,7 @@ enum ltt_channels {
  */
 #define LTTNG_METADATA_TIMEOUT_MSEC    10000
 
-/*
- * Size reserved for high priority events (interrupts, NMI, BH) at the end of a
- * nearly full buffer. User space won't use this last amount of space when in
- * blocking mode. This space also includes the event header that would be
- * written by this user space event.
- */
-#define LTT_RESERVE_CRITICAL           4096
-
 #define LTT_RFLAG_EXTENDED             RING_BUFFER_RFLAG_END
 #define LTT_RFLAG_END                  (LTT_RFLAG_EXTENDED << 1)
 
-/* Register and unregister function pointers */
-
-enum ltt_module_function {
-       LTT_FUNCTION_RUN_FILTER,
-       LTT_FUNCTION_FILTER_CONTROL,
-       LTT_FUNCTION_STATEDUMP
-};
-
-extern int ltt_module_register(enum ltt_module_function name, void *function,
-                              struct module *owner);
-extern void ltt_module_unregister(enum ltt_module_function name);
-
-/* Exported control function */
-
-void ltt_core_register(int (*function)(u8, void *));
-
-void ltt_core_unregister(void);
-
-extern
-void ltt_statedump_register_kprobes_dump(void (*callback)(void *call_data));
-extern
-void ltt_statedump_unregister_kprobes_dump(void (*callback)(void *call_data));
-
-extern void ltt_dump_softirq_vec(void *call_data);
-
-#ifdef CONFIG_HAVE_LTT_DUMP_TABLES
-extern void ltt_dump_sys_call_table(void *call_data);
-extern void ltt_dump_idt_table(void *call_data);
-#else
-static inline void ltt_dump_sys_call_table(void *call_data)
-{
-}
-
-static inline void ltt_dump_idt_table(void *call_data)
-{
-}
-#endif
-
 #endif /* _LTT_TRACER_H */