projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 4dbc372b | 1 | /* |
| ab5be9fa MJ |
2 | * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca> |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 4 | * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca> | |
| 4dbc372b | 5 | * |
| ab5be9fa | 6 | * SPDX-License-Identifier: GPL-2.0-only |
| 4dbc372b | 7 | * |
| 4dbc372b JD |
8 | */ |
| 9 | ||
| 10 | #ifndef _LTTNG_KERNEL_OLD_H | |
| 11 | #define _LTTNG_KERNEL_OLD_H | |
| 12 | ||
| 13 | #include <stdint.h> | |
| 14 | #include <common/lttng-kernel.h> | |
| 15 | ||
| 16 | /* | |
| 17 | * LTTng DebugFS ABI structures. | |
| 18 | * | |
| 19 | * This is the kernel ABI copied from lttng-modules tree. | |
| 20 | */ | |
| 21 | ||
| 22 | /* Perf counter attributes */ | |
| 23 | struct lttng_kernel_old_perf_counter_ctx { | |
| 24 | uint32_t type; | |
| 25 | uint64_t config; | |
| 26 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; | |
| 27 | }; | |
| 28 | ||
| 29 | /* Event/Channel context */ | |
| 30 | #define LTTNG_KERNEL_OLD_CONTEXT_PADDING1 16 | |
| 31 | #define LTTNG_KERNEL_OLD_CONTEXT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
| 32 | struct lttng_kernel_old_context { | |
| 33 | enum lttng_kernel_context_type ctx; | |
| 34 | char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING1]; | |
| 35 | ||
| 36 | union { | |
| 37 | struct lttng_kernel_old_perf_counter_ctx perf_counter; | |
| 38 | char padding[LTTNG_KERNEL_OLD_CONTEXT_PADDING2]; | |
| 39 | } u; | |
| 40 | }; | |
| 41 | ||
| 42 | struct lttng_kernel_old_kretprobe { | |
| 43 | uint64_t addr; | |
| 44 | ||
| 45 | uint64_t offset; | |
| 46 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; | |
| 47 | }; | |
| 48 | ||
| 49 | /* | |
| 50 | * Either addr is used, or symbol_name and offset. | |
| 51 | */ | |
| 52 | struct lttng_kernel_old_kprobe { | |
| 53 | uint64_t addr; | |
| 54 | ||
| 55 | uint64_t offset; | |
| 56 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; | |
| 57 | }; | |
| 58 | ||
| 59 | /* Function tracer */ | |
| 60 | struct lttng_kernel_old_function { | |
| 61 | char symbol_name[LTTNG_KERNEL_SYM_NAME_LEN]; | |
| 62 | }; | |
| 63 | ||
| 64 | #define LTTNG_KERNEL_OLD_EVENT_PADDING1 16 | |
| 65 | #define LTTNG_KERNEL_OLD_EVENT_PADDING2 LTTNG_KERNEL_SYM_NAME_LEN + 32 | |
| 66 | struct lttng_kernel_old_event { | |
| 67 | char name[LTTNG_KERNEL_SYM_NAME_LEN]; | |
| 68 | enum lttng_kernel_instrumentation instrumentation; | |
| 69 | char padding[LTTNG_KERNEL_OLD_EVENT_PADDING1]; | |
| 70 | ||
| 71 | /* Per instrumentation type configuration */ | |
| 72 | union { | |
| 73 | struct lttng_kernel_old_kretprobe kretprobe; | |
| 74 | struct lttng_kernel_old_kprobe kprobe; | |
| 75 | struct lttng_kernel_old_function ftrace; | |
| 76 | char padding[LTTNG_KERNEL_OLD_EVENT_PADDING2]; | |
| 77 | } u; | |
| 78 | }; | |
| 79 | ||
| 80 | struct lttng_kernel_old_tracer_version { | |
| 81 | uint32_t major; | |
| 82 | uint32_t minor; | |
| 83 | uint32_t patchlevel; | |
| 84 | }; | |
| 85 | ||
| 4dbc372b JD |
86 | /* |
| 87 | * kernel channel | |
| 88 | */ | |
| 89 | #define LTTNG_KERNEL_OLD_CHANNEL_PADDING1 LTTNG_SYMBOL_NAME_LEN + 32 | |
| 90 | struct lttng_kernel_old_channel { | |
| 91 | int overwrite; /* 1: overwrite, 0: discard */ | |
| 92 | uint64_t subbuf_size; /* bytes */ | |
| 93 | uint64_t num_subbuf; /* power of 2 */ | |
| 94 | unsigned int switch_timer_interval; /* usec */ | |
| 95 | unsigned int read_timer_interval; /* usec */ | |
| 96 | enum lttng_event_output output; /* splice, mmap */ | |
| 97 | ||
| 98 | char padding[LTTNG_KERNEL_OLD_CHANNEL_PADDING1]; | |
| 99 | }; | |
| 100 | ||
| 101 | #endif /* _LTTNG_KERNEL_OLD_H */ |