Change lttng.h API char to const char

[lttng-tools.git] / include / lttng-kernel.h

diff --git a/include/lttng-kernel.h b/include/lttng-kernel.h
index 6fa4e3925e562726c3ec184405ea4df4ff693398..dd28ff178763c6aea24247517a9d3e1b7ceb166e 100644 (file)
--- a/include/lttng-kernel.h
+++ b/include/lttng-kernel.h
@@ -25,19 +25,49 @@
 
 #define LTTNG_SYM_NAME_LEN  128
 
-enum lttng_kernel_instrumentation {
-       LTTNG_KERNEL_TRACEPOINTS,
-       LTTNG_KERNEL_KPROBES,
-       LTTNG_KERNEL_FUNCTION,
-};
-
 /*
  * LTTng DebugFS ABI structures.
  *
  * This is the kernel ABI copied from lttng-modules tree.
  */
 
-/* Either addr is used or symbol_name and offset. */
+enum lttng_kernel_instrumentation {
+       LTTNG_KERNEL_TRACEPOINT    = 0,
+       LTTNG_KERNEL_KPROBE        = 1,
+       LTTNG_KERNEL_FUNCTION      = 2,
+};
+
+enum lttng_kernel_context_type {
+       LTTNG_KERNEL_CONTEXT_PID            = 0,
+       LTTNG_KERNEL_CONTEXT_PERF_COUNTER   = 1,
+       LTTNG_KERNEL_CONTEXT_COMM           = 2,
+       LTTNG_KERNEL_CONTEXT_PRIO           = 3,
+       LTTNG_KERNEL_CONTEXT_NICE           = 4,
+       LTTNG_KERNEL_CONTEXT_VPID           = 5,
+       LTTNG_KERNEL_CONTEXT_TID            = 6,
+       LTTNG_KERNEL_CONTEXT_VTID           = 7,
+       LTTNG_KERNEL_CONTEXT_PPID           = 8,
+       LTTNG_KERNEL_CONTEXT_VPPID          = 9,
+};
+
+/* Perf counter attributes */
+struct lttng_kernel_perf_counter_ctx {
+       uint32_t type;
+       uint64_t config;
+       char name[LTTNG_SYMBOL_NAME_LEN];
+};
+
+/* Event/Channel context */
+struct lttng_kernel_context {
+       enum lttng_kernel_context_type ctx;
+       union {
+               struct lttng_kernel_perf_counter_ctx perf_counter;
+       } u;
+};
+
+/*
+ * Either addr is used, or symbol_name and offset.
+ */
 struct lttng_kernel_kprobe {
        uint64_t addr;
 
@@ -45,7 +75,8 @@ struct lttng_kernel_kprobe {
        char symbol_name[LTTNG_SYM_NAME_LEN];
 };
 
-struct lttng_kernel_function_tracer {
+/* Function tracer */
+struct lttng_kernel_function {
        char symbol_name[LTTNG_SYM_NAME_LEN];
 };
 
@@ -55,7 +86,7 @@ struct lttng_kernel_event {
        /* Per instrumentation type configuration */
        union {
                struct lttng_kernel_kprobe kprobe;
-               struct lttng_kernel_function_tracer ftrace;
+               struct lttng_kernel_function ftrace;
        } u;
 };