1 /*
2 * Copyright (C) 2019 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "linker_debuggerd.h"
30
31 #include "debuggerd/handler.h"
32 #include "private/bionic_globals.h"
33
34 #include "linker_gdb_support.h"
35
36 #if defined(__ANDROID_APEX__)
get_process_info()37 static debugger_process_info get_process_info() {
38 return {
39 .abort_msg = __libc_shared_globals()->abort_msg,
40 .fdsan_table = &__libc_shared_globals()->fd_table,
41 .gwp_asan_state = __libc_shared_globals()->gwp_asan_state,
42 .gwp_asan_metadata = __libc_shared_globals()->gwp_asan_metadata,
43 .scudo_stack_depot = __libc_shared_globals()->scudo_stack_depot,
44 .scudo_region_info = __libc_shared_globals()->scudo_region_info,
45 .scudo_ring_buffer = __libc_shared_globals()->scudo_ring_buffer,
46 .scudo_ring_buffer_size = __libc_shared_globals()->scudo_ring_buffer_size,
47 .scudo_stack_depot_size = __libc_shared_globals()->scudo_stack_depot_size,
48 .crash_detail_page = __libc_shared_globals()->crash_detail_page,
49 };
50 }
51
get_gwp_asan_callbacks()52 static gwp_asan_callbacks_t get_gwp_asan_callbacks() {
53 return {
54 .debuggerd_needs_gwp_asan_recovery =
55 __libc_shared_globals()->debuggerd_needs_gwp_asan_recovery,
56 .debuggerd_gwp_asan_pre_crash_report =
57 __libc_shared_globals()->debuggerd_gwp_asan_pre_crash_report,
58 .debuggerd_gwp_asan_post_crash_report =
59 __libc_shared_globals()->debuggerd_gwp_asan_post_crash_report,
60 };
61 }
62 #endif
63
linker_debuggerd_init()64 void linker_debuggerd_init() {
65 // There may be a version mismatch between the bootstrap linker and the crash_dump in the APEX,
66 // so don't pass in any process info from the bootstrap linker.
67 debuggerd_callbacks_t callbacks = {
68 #if defined(__ANDROID_APEX__)
69 .get_process_info = get_process_info,
70 .get_gwp_asan_callbacks = get_gwp_asan_callbacks,
71 #endif
72 .post_dump = notify_gdb_of_libraries,
73 };
74 debuggerd_init(&callbacks);
75 }
76