Fix: signal: Remove SEND_SIG_FORCED (v4.20)

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

diff --git a/lttng-abi.h b/lttng-abi.h
index a40b58f51dec8487c3e3d5a3c6d1129faac65dc3..db66bf375b74663e30f1b91809746a0bc76147b2 100644 (file)
--- a/lttng-abi.h
+++ b/lttng-abi.h
@@ -1,28 +1,15 @@
-#ifndef _LTTNG_ABI_H
-#define _LTTNG_ABI_H
-
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
  * lttng-abi.h
  *
  * LTTng ABI header
  *
  * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#ifndef _LTTNG_ABI_H
+#define _LTTNG_ABI_H
+
 #include <linux/fs.h>
 
 /*
@@ -30,7 +17,7 @@
  * should be increased when an incompatible ABI change is done.
  */
 #define LTTNG_MODULES_ABI_MAJOR_VERSION                2
-#define LTTNG_MODULES_ABI_MINOR_VERSION                0
+#define LTTNG_MODULES_ABI_MINOR_VERSION                3
 
 #define LTTNG_KERNEL_SYM_NAME_LEN      256
 
@@ -41,6 +28,7 @@ enum lttng_kernel_instrumentation {
        LTTNG_KERNEL_KRETPROBE  = 3,
        LTTNG_KERNEL_NOOP       = 4,    /* not hooked */
        LTTNG_KERNEL_SYSCALL    = 5,
+       LTTNG_KERNEL_UPROBE     = 6,
 };
 
 /*
@@ -86,6 +74,20 @@ struct lttng_kernel_function_tracer {
        char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
 } __attribute__((packed));
 
+struct lttng_kernel_uprobe {
+       int fd;
+} __attribute__((packed));
+
+struct lttng_kernel_event_callsite_uprobe {
+       uint64_t offset;
+} __attribute__((packed));
+
+struct lttng_kernel_event_callsite {
+       union {
+               struct lttng_kernel_event_callsite_uprobe uprobe;
+       } u;
+} __attribute__((packed));
+
 /*
  * For syscall tracing, name = "*" means "enable all".
  */
@@ -101,6 +103,7 @@ struct lttng_kernel_event {
                struct lttng_kernel_kretprobe kretprobe;
                struct lttng_kernel_kprobe kprobe;
                struct lttng_kernel_function_tracer ftrace;
+               struct lttng_kernel_uprobe uprobe;
                char padding[LTTNG_KERNEL_EVENT_PADDING2];
        } u;
 } __attribute__((packed));
@@ -142,6 +145,12 @@ enum lttng_kernel_context_type {
        LTTNG_KERNEL_CONTEXT_VPPID              = 9,
        LTTNG_KERNEL_CONTEXT_HOSTNAME           = 10,
        LTTNG_KERNEL_CONTEXT_CPU_ID             = 11,
+       LTTNG_KERNEL_CONTEXT_INTERRUPTIBLE      = 12,
+       LTTNG_KERNEL_CONTEXT_PREEMPTIBLE        = 13,
+       LTTNG_KERNEL_CONTEXT_NEED_RESCHEDULE    = 14,
+       LTTNG_KERNEL_CONTEXT_MIGRATABLE         = 15,
+       LTTNG_KERNEL_CONTEXT_CALLSTACK_KERNEL   = 16,
+       LTTNG_KERNEL_CONTEXT_CALLSTACK_USER     = 17,
 };
 
 struct lttng_kernel_perf_counter_ctx {
@@ -193,8 +202,15 @@ struct lttng_kernel_filter_bytecode {
        _IOR(0xF6, 0x58, int32_t)
 #define LTTNG_KERNEL_SESSION_UNTRACK_PID       \
        _IOR(0xF6, 0x59, int32_t)
+/*
+ * ioctl 0x58 and 0x59 are duplicated here. It works, since _IOR vs _IO
+ * are generating two different ioctl numbers, but this was not done on
+ * purpose. We should generally try to avoid those duplications.
+ */
 #define LTTNG_KERNEL_SESSION_LIST_TRACKER_PIDS _IO(0xF6, 0x58)
 #define LTTNG_KERNEL_SESSION_METADATA_REGEN    _IO(0xF6, 0x59)
+/* 0x5A and 0x5B are reserved for a future ABI-breaking cleanup. */
+#define LTTNG_KERNEL_SESSION_STATEDUMP         _IO(0xF6, 0x5C)
 
 /* Channel FD ioctl */
 #define LTTNG_KERNEL_STREAM                    _IO(0xF6, 0x62)
@@ -213,6 +229,7 @@ struct lttng_kernel_filter_bytecode {
 
 /* Event FD ioctl */
 #define LTTNG_KERNEL_FILTER                    _IO(0xF6, 0x90)
+#define LTTNG_KERNEL_ADD_CALLSITE              _IO(0xF6, 0x91)
 
 /* LTTng-specific ioctls for the lib ringbuffer */
 /* returns the timestamp begin of the current sub-buffer */