ABI with support for compat 32/64 bits

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

diff --git a/lttng-abi-old.h b/lttng-abi-old.h
new file mode 100644 (file)
index 0000000..3e6b328
--- /dev/null
+++ b/lttng-abi-old.h
@@ -0,0 +1,141 @@
+#ifndef _LTTNG_ABI_OLD_H
+#define _LTTNG_ABI_OLD_H
+
+/*
+ * lttng-abi-old.h
+ *
+ * LTTng old ABI header (without support for compat 32/64 bits)
+ *
+ * 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
+ */
+
+#include <linux/fs.h>
+#include "lttng-abi.h"
+
+/*
+ * LTTng DebugFS ABI structures.
+ */
+#define LTTNG_KERNEL_OLD_CHANNEL_PADDING       LTTNG_KERNEL_SYM_NAME_LEN + 32
+struct lttng_kernel_old_channel {
+       int overwrite;                          /* 1: overwrite, 0: discard */
+       uint64_t subbuf_size;                   /* in bytes */
+       uint64_t num_subbuf;
+       unsigned int switch_timer_interval;     /* usecs */
+       unsigned int read_timer_interval;       /* usecs */
+       enum lttng_kernel_output output;        /* splice, mmap */
+       char padding[LTTNG_KERNEL_OLD_CHANNEL_PADDING];
+};
+
+struct lttng_kernel_old_kretprobe {
+       uint64_t addr;
+
+       uint64_t offset;
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+};
+
+/*
+ * Either addr is used, or symbol_name and offset.
+ */
+struct lttng_kernel_old_kprobe {
+       uint64_t addr;
+
+       uint64_t offset;
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+};
+
+struct lttng_kernel_old_function_tracer {
+       char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN];
+};
+
+/*
+ * For syscall tracing, name = '\0' means "enable all".
+ */
+#define LTTNG_KERNEL_OLD_EVENT_PADDING1        16
+#define LTTNG_KERNEL_OLD_EVENT_PADDING2        LTTNG_KERNEL_SYM_NAME_LEN + 32
+struct lttng_kernel_old_event {
+       char name[LTTNG_KERNEL_SYM_NAME_LEN];   /* event name */
+       enum lttng_kernel_instrumentation instrumentation;
+       char padding[LTTNG_KERNEL_OLD_EVENT_PADDING1];
+
+       /* Per instrumentation type configuration */
+       union {
+               struct lttng_kernel_old_kretprobe kretprobe;
+               struct lttng_kernel_old_kprobe kprobe;
+               struct lttng_kernel_old_function_tracer ftrace;
+               char padding[LTTNG_KERNEL_OLD_EVENT_PADDING2];
+       } u;
+};
+
+struct lttng_kernel_old_tracer_version {
+       uint32_t major;
+       uint32_t minor;
+       uint32_t patchlevel;
+};
+
+struct lttng_kernel_old_calibrate {
+       enum lttng_kernel_calibrate_type type;  /* type (input) */
+};
+
+struct lttng_kernel_old_perf_counter_ctx {
+       uint32_t type;
+       uint64_t config;
+       char name[LTTNG_KERNEL_SYM_NAME_LEN];
+};
+
+#define LTTNG_KERNEL_OLD_CONTEXT_PADDING1      16
+#define LTTNG_KERNEL_OLD_CONTEXT_PADDING2      LTTNG_KERNEL_SYM_NAME_LEN + 32
+struct lttng_kernel_old_context {
+       enum lttng_kernel_context_type ctx;
+       char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING1];
+
+       union {
+               struct lttng_kernel_old_perf_counter_ctx perf_counter;
+               char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING2];
+       } u;
+};
+
+/* LTTng file descriptor ioctl */
+#define LTTNG_KERNEL_OLD_SESSION               _IO(0xF6, 0x40)
+#define LTTNG_KERNEL_OLD_TRACER_VERSION                \
+       _IOR(0xF6, 0x41, struct lttng_kernel_old_tracer_version)
+#define LTTNG_KERNEL_OLD_TRACEPOINT_LIST       _IO(0xF6, 0x42)
+#define LTTNG_KERNEL_OLD_WAIT_QUIESCENT                _IO(0xF6, 0x43)
+#define LTTNG_KERNEL_OLD_CALIBRATE             \
+       _IOWR(0xF6, 0x44, struct lttng_kernel_old_calibrate)
+
+/* Session FD ioctl */
+#define LTTNG_KERNEL_OLD_METADATA              \
+       _IOW(0xF6, 0x50, struct lttng_kernel_old_channel)
+#define LTTNG_KERNEL_OLD_CHANNEL               \
+       _IOW(0xF6, 0x51, struct lttng_kernel_old_channel)
+#define LTTNG_KERNEL_OLD_SESSION_START         _IO(0xF6, 0x52)
+#define LTTNG_KERNEL_OLD_SESSION_STOP          _IO(0xF6, 0x53)
+
+/* Channel FD ioctl */
+#define LTTNG_KERNEL_OLD_STREAM                        _IO(0xF6, 0x60)
+#define LTTNG_KERNEL_OLD_EVENT                 \
+       _IOW(0xF6, 0x61, struct lttng_kernel_old_event)
+
+/* Event and Channel FD ioctl */
+#define LTTNG_KERNEL_OLD_CONTEXT               \
+       _IOW(0xF6, 0x70, struct lttng_kernel_old_context)
+
+/* Event, Channel and Session ioctl */
+#define LTTNG_KERNEL_OLD_ENABLE                        _IO(0xF6, 0x80)
+#define LTTNG_KERNEL_OLD_DISABLE               _IO(0xF6, 0x81)
+
+#endif /* _LTTNG_ABI_OLD_H */