projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 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_H | |
| 9 | #define LTTNG_KERNEL_PROBE_H | |
| 10 | ||
| 4bd69c5f | 11 | #include <lttng/lttng-export.h> |
| 808cb744 JR |
12 | #include <stdint.h> |
| 13 | ||
| 14 | #ifdef __cplusplus | |
| 15 | extern "C" { | |
| 16 | #endif | |
| 17 | ||
| 18 | struct lttng_kernel_probe_location; | |
| 19 | ||
| 20 | enum lttng_kernel_probe_location_status { | |
| 21 | LTTNG_KERNEL_PROBE_LOCATION_STATUS_OK = 0, | |
| 22 | /* Invalid parameters provided. */ | |
| 23 | LTTNG_KERNEL_PROBE_LOCATION_STATUS_INVALID = -1, | |
| 24 | }; | |
| 25 | ||
| 26 | enum lttng_kernel_probe_location_type { | |
| 27 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_UNKNOWN = -1, | |
| 28 | /* Location derived from a symbol and an offset. */ | |
| 29 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_SYMBOL_OFFSET = 0, | |
| 30 | /* Location derived from an address. */ | |
| 31 | LTTNG_KERNEL_PROBE_LOCATION_TYPE_ADDRESS = 1, | |
| 32 | }; | |
| 33 | ||
| 34 | /* | |
| 35 | * Get the type of the kernel probe location. | |
| 36 | */ | |
| 4bd69c5f | 37 | LTTNG_EXPORT extern enum lttng_kernel_probe_location_type |
| 808cb744 JR |
38 | lttng_kernel_probe_location_get_type( |
| 39 | const struct lttng_kernel_probe_location *location); | |
| 40 | ||
| 41 | /* | |
| 42 | * Destroy the kernel probe location. | |
| 43 | */ | |
| 4bd69c5f | 44 | LTTNG_EXPORT extern void lttng_kernel_probe_location_destroy( |
| 808cb744 JR |
45 | struct lttng_kernel_probe_location *location); |
| 46 | ||
| 47 | /* | |
| 48 | * Create a symbol derived probe location. | |
| 49 | * On failure, NULL is returned. | |
| 50 | */ | |
| 4bd69c5f | 51 | LTTNG_EXPORT extern struct lttng_kernel_probe_location * |
| 808cb744 JR |
52 | lttng_kernel_probe_location_symbol_create(const char *symbol_name, |
| 53 | uint64_t offset); | |
| 54 | ||
| 55 | /* | |
| 56 | * Get the symbol name of a symbol derived probe location. | |
| 57 | */ | |
| 4bd69c5f | 58 | LTTNG_EXPORT extern const char *lttng_kernel_probe_location_symbol_get_name( |
| 808cb744 JR |
59 | const struct lttng_kernel_probe_location *location); |
| 60 | ||
| 61 | /* | |
| 62 | * Get the offset of a symbol derived location. | |
| 63 | */ | |
| 4bd69c5f | 64 | LTTNG_EXPORT extern enum lttng_kernel_probe_location_status |
| 808cb744 JR |
65 | lttng_kernel_probe_location_symbol_get_offset( |
| 66 | const struct lttng_kernel_probe_location *location, | |
| 67 | uint64_t *offset); | |
| 68 | ||
| 69 | /* | |
| 70 | * Create an address derived probe location. | |
| 71 | * On failure, NULL is returned. | |
| 72 | */ | |
| 4bd69c5f | 73 | LTTNG_EXPORT extern struct lttng_kernel_probe_location * |
| 808cb744 JR |
74 | lttng_kernel_probe_location_address_create(uint64_t address); |
| 75 | ||
| 76 | /* | |
| 77 | * Get the address of an address derived probe location. | |
| 78 | */ | |
| 4bd69c5f | 79 | LTTNG_EXPORT extern enum lttng_kernel_probe_location_status |
| 808cb744 JR |
80 | lttng_kernel_probe_location_address_get_address( |
| 81 | const struct lttng_kernel_probe_location *location, | |
| 82 | uint64_t *offset); | |
| 83 | ||
| 84 | #ifdef __cplusplus | |
| 85 | } | |
| 86 | #endif | |
| 87 | ||
| 88 | #endif /* LTTNG_KERNEL_PROBE_H */ |