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808cb744 JR |
1 | /* |
2 | * Copyright (C) 2020 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: LGPL-2.1-only | |
5 | * | |
6 | */ | |
7 | ||
8 | #ifndef LTTNG_KERNEL_PROBE_INTERNAL_H | |
9 | #define LTTNG_KERNEL_PROBE_INTERNAL_H | |
10 | ||
11 | #include <common/fd-handle.h> | |
12 | #include <common/macros.h> | |
13 | #include <lttng/kernel-probe.h> | |
14 | #include <stdbool.h> | |
15 | #include <stdint.h> | |
16 | #include <sys/types.h> | |
17 | ||
18 | struct lttng_payload; | |
19 | struct lttng_payload_view; | |
20 | struct lttng_dynamic_buffer; | |
6a751b95 | 21 | struct mi_writer; |
808cb744 JR |
22 | |
23 | typedef bool (*kernel_probe_location_equal_cb)( | |
24 | const struct lttng_kernel_probe_location *a, | |
25 | const struct lttng_kernel_probe_location *b); | |
26 | typedef int (*kernel_probe_location_serialize_cb)( | |
27 | const struct lttng_kernel_probe_location *kernel_probe_location, | |
28 | struct lttng_payload *payload); | |
29 | typedef bool (*kernel_probe_location_equal_cb)( | |
30 | const struct lttng_kernel_probe_location *a, | |
31 | const struct lttng_kernel_probe_location *b); | |
32 | typedef ssize_t (*kernel_probe_location_create_from_payload_cb)( | |
33 | struct lttng_payload_view *view, | |
34 | struct lttng_kernel_probe_location **kernel_probe_location); | |
959e3c66 JR |
35 | typedef unsigned long (*kernel_probe_location_hash_cb)( |
36 | const struct lttng_kernel_probe_location *location); | |
6a751b95 JR |
37 | typedef enum lttng_error_code (*kernel_probe_location_mi_serialize_cb)( |
38 | const struct lttng_kernel_probe_location *location, | |
39 | struct mi_writer *writer); | |
808cb744 JR |
40 | |
41 | struct lttng_kernel_probe_location_comm { | |
42 | /* enum lttng_kernel_probe_location_type */ | |
43 | int8_t type; | |
44 | /* | |
45 | * Payload is composed of, in that order, | |
46 | * - type-specific payload | |
47 | */ | |
48 | char payload[]; | |
49 | } LTTNG_PACKED; | |
50 | ||
51 | struct lttng_kernel_probe_location_symbol_comm { | |
52 | /* Includes the trailing \0. */ | |
53 | uint32_t symbol_len; | |
54 | /* The offset from the symbol. */ | |
55 | uint64_t offset; | |
56 | /* | |
57 | * Payload is composed of, in that order, | |
58 | * - symbol name (with trailing \0). | |
59 | */ | |
60 | char payload[]; | |
61 | } LTTNG_PACKED; | |
62 | ||
63 | struct lttng_kernel_probe_location_address_comm { | |
64 | uint64_t address; | |
65 | } LTTNG_PACKED; | |
66 | ||
67 | /* Common ancestor of all kernel probe locations. */ | |
68 | struct lttng_kernel_probe_location { | |
69 | enum lttng_kernel_probe_location_type type; | |
70 | kernel_probe_location_equal_cb equal; | |
71 | kernel_probe_location_serialize_cb serialize; | |
959e3c66 | 72 | kernel_probe_location_hash_cb hash; |
6a751b95 | 73 | kernel_probe_location_mi_serialize_cb mi_serialize; |
808cb744 JR |
74 | }; |
75 | ||
76 | struct lttng_kernel_probe_location_symbol { | |
77 | struct lttng_kernel_probe_location parent; | |
78 | char *symbol_name; | |
79 | uint64_t offset; | |
80 | }; | |
81 | ||
82 | struct lttng_kernel_probe_location_address { | |
83 | struct lttng_kernel_probe_location parent; | |
84 | uint64_t address; | |
85 | }; | |
86 | ||
808cb744 JR |
87 | int lttng_kernel_probe_location_serialize( |
88 | const struct lttng_kernel_probe_location *location, | |
89 | struct lttng_payload *payload); | |
90 | ||
808cb744 JR |
91 | ssize_t lttng_kernel_probe_location_create_from_payload( |
92 | struct lttng_payload_view *view, | |
93 | struct lttng_kernel_probe_location **probe_location); | |
94 | ||
808cb744 JR |
95 | bool lttng_kernel_probe_location_is_equal( |
96 | const struct lttng_kernel_probe_location *a, | |
97 | const struct lttng_kernel_probe_location *b); | |
98 | ||
077192fd JR |
99 | struct lttng_kernel_probe_location *lttng_kernel_probe_location_copy( |
100 | const struct lttng_kernel_probe_location *location); | |
101 | ||
959e3c66 JR |
102 | unsigned long lttng_kernel_probe_location_hash( |
103 | const struct lttng_kernel_probe_location *location); | |
104 | ||
6a751b95 JR |
105 | enum lttng_error_code lttng_kernel_probe_location_mi_serialize( |
106 | const struct lttng_kernel_probe_location *location, | |
107 | struct mi_writer *writer); | |
108 | ||
808cb744 | 109 | #endif /* LTTNG_KERNEL_PROBE_INTERNAL_H */ |