| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-only |
| 3 | * |
| 4 | * Copyright (C) 2021 Michael Jeanson <mjeanson@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <stdio.h> |
| 8 | #include <stdint.h> |
| 9 | |
| 10 | #include "./fake-ust.h" |
| 11 | |
| 12 | void init_usterr(void) |
| 13 | { |
| 14 | fprintf(stderr, "libfakeust0: init_usterr() called.\n"); |
| 15 | } |
| 16 | |
| 17 | /* |
| 18 | * The symbol used by liblttng-ust.so.1 to detect liblttng-ust.so.0 in a |
| 19 | * process. |
| 20 | */ |
| 21 | int ltt_probe_register(struct lttng_probe_desc *desc __attribute__((unused))) |
| 22 | { |
| 23 | fprintf(stderr, "libfakeust0: ltt_probe_register() called.\n"); |
| 24 | return 0; |
| 25 | } |
| 26 | |
| 27 | /* |
| 28 | * This constructor calls the 'init_usterr' canary function which is provided |
| 29 | * by liblttng-ust.so.1. |
| 30 | */ |
| 31 | static |
| 32 | void fake_ust_ctor(void) |
| 33 | __attribute__((constructor)); |
| 34 | static void fake_ust_ctor(void) |
| 35 | { |
| 36 | init_usterr(); |
| 37 | } |