X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttng-kernel.h;h=394962054877f751a653050013a7b448e64a70b1;hp=b8eb456725b6ee726bd4cf876c28ddc6d5e84476;hb=e848fc768a950acc1b823fcb139057a4fac1442a;hpb=93128a92561c2964186015a7e075c607613e6e75

diff --git a/include/lttng-kernel.h b/include/lttng-kernel.h
index b8eb45672..394962054 100644
--- a/include/lttng-kernel.h
+++ b/include/lttng-kernel.h
@@ -5,8 +5,8 @@
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
+ * as published by the Free Software Foundation; only version 2
+ * of the License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -23,26 +23,96 @@
 
 #include <stdint.h>
 
-typedef uint64_t u64;
+#include <lttng-share.h>
+
+#define LTTNG_SYM_NAME_LEN  128
 
 /*
  * LTTng DebugFS ABI structures.
+ *
+ * This is the kernel ABI copied from lttng-modules tree.
  */
-enum lttng_instrum_type {
-	INSTRUM_TRACEPOINTS,
+
+enum lttng_kernel_instrumentation {
+	LTTNG_KERNEL_TRACEPOINT    = 0,
+	LTTNG_KERNEL_KPROBE        = 1,
+	LTTNG_KERNEL_FUNCTION      = 2,
+	LTTNG_KERNEL_KRETPROBE     = 3,
+};
+
+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_SYM_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;
+};
+
+struct lttng_kernel_kretprobe {
+	uint64_t addr;
+
+	uint64_t offset;
+	char symbol_name[LTTNG_SYM_NAME_LEN];
+};
+
+/*
+ * Either addr is used, or symbol_name and offset.
+ */
+struct lttng_kernel_kprobe {
+	uint64_t addr;
+
+	uint64_t offset;
+	char symbol_name[LTTNG_SYM_NAME_LEN];
+};
+
+/* Function tracer */
+struct lttng_kernel_function {
+	char symbol_name[LTTNG_SYM_NAME_LEN];
+};
+
+struct lttng_kernel_event {
+	char name[LTTNG_SYM_NAME_LEN];
+	enum lttng_kernel_instrumentation instrumentation;
+	/* Per instrumentation type configuration */
+	union {
+		struct lttng_kernel_kretprobe kretprobe;
+		struct lttng_kernel_kprobe kprobe;
+		struct lttng_kernel_function ftrace;
+	} u;
+};
+
+struct lttng_kernel_tracer_version {
+	uint32_t version;
+	uint32_t patchlevel;
+	uint32_t sublevel;
 };
 
-struct lttng_channel {
-	int overwrite;         /* 1: overwrite, 0: discard */
-	u64 subbuf_size;
-	u64 num_subbuf;
-	unsigned int switch_timer_interval;
-	unsigned int read_timer_interval;
+enum lttng_kernel_calibrate_type {
+	LTTNG_KERNEL_CALIBRATE_KRETPROBE,
 };
 
-struct lttng_event {
-	enum lttng_instrum_type itype;
-	char name[];
+struct lttng_kernel_calibrate {
+	enum lttng_kernel_calibrate_type type;	/* type (input) */
 };
 
 #endif /* _LTTNG_KERNEL_H */