| 1 | #ifndef _LTT_DEBUGFS_ABI_H |
| 2 | #define _LTT_DEBUGFS_ABI_H |
| 3 | |
| 4 | /* |
| 5 | * ltt-debugfs-abi.h |
| 6 | * |
| 7 | * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 8 | * |
| 9 | * LTTng debugfs ABI header |
| 10 | */ |
| 11 | |
| 12 | #include <linux/fs.h> |
| 13 | |
| 14 | enum lttng_kernel_instrumentation { |
| 15 | LTTNG_KERNEL_TRACEPOINTS, |
| 16 | LTTNG_KERNEL_KPROBES, |
| 17 | }; |
| 18 | |
| 19 | /* |
| 20 | * LTTng DebugFS ABI structures. |
| 21 | */ |
| 22 | |
| 23 | struct lttng_kernel_channel { |
| 24 | int overwrite; /* 1: overwrite, 0: discard */ |
| 25 | u64 subbuf_size; |
| 26 | u64 num_subbuf; |
| 27 | unsigned int switch_timer_interval; |
| 28 | unsigned int read_timer_interval; |
| 29 | }; |
| 30 | |
| 31 | struct lttng_kernel_event { |
| 32 | enum lttng_kernel_instrumentation instrumentation; |
| 33 | char name[]; |
| 34 | }; |
| 35 | |
| 36 | /* |
| 37 | * Either addr is used, or symbol_name and offset. |
| 38 | */ |
| 39 | struct lttng_kernel_kprobe { |
| 40 | u64 addr; |
| 41 | |
| 42 | u64 offset; |
| 43 | char symbol_name[]; |
| 44 | }; |
| 45 | |
| 46 | #define LTTNG_KERNEL_SESSION _IO(0xF6, 0x40) |
| 47 | #define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x41) |
| 48 | #define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x42) |
| 49 | #define LTTNG_KERNEL_CHANNEL \ |
| 50 | _IOW(0xF6, 0x43, struct lttng_kernel_channel) |
| 51 | #define LTTNG_KERNEL_STREAM _IO(0xF6, 0x44) |
| 52 | #define LTTNG_KERNEL_EVENT \ |
| 53 | _IOW(0xF6, 0x45, struct lttng_kernel_event) |
| 54 | #define LTTNG_KERNEL_METADATA \ |
| 55 | _IOW(0xF6, 0x46, struct lttng_kernel_channel) |
| 56 | #define LTTNG_KERNEL_KPROBE \ |
| 57 | _IOW(0xF6, 0x47, struct lttng_kernel_kprobe) |
| 58 | #define LTTNG_KERNEL_TRACER_VERSION \ |
| 59 | _IOW(0xF6, 0x48, struct lttng_kernel_tracer_version) |
| 60 | |
| 61 | #endif /* _LTT_DEBUGFS_ABI_H */ |