1 //===-- wrappers_c_bionic.cpp -----------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "platform.h"
10 
11 // This is only used when compiled as part of Bionic.
12 #if SCUDO_ANDROID && _BIONIC
13 
14 #include "allocator_config.h"
15 #include "wrappers_c.h"
16 #include "wrappers_c_checks.h"
17 
18 #include <stdint.h>
19 #include <stdio.h>
20 
21 // Regular MallocDispatch definitions.
22 #define SCUDO_PREFIX(name) CONCATENATE(scudo_, name)
23 #define SCUDO_ALLOCATOR Allocator
24 
25 extern "C" void SCUDO_PREFIX(malloc_postinit)();
26 static scudo::Allocator<scudo::AndroidConfig, SCUDO_PREFIX(malloc_postinit)>
27     SCUDO_ALLOCATOR;
28 
29 #include "wrappers_c.inc"
30 
31 #undef SCUDO_ALLOCATOR
32 #undef SCUDO_PREFIX
33 
34 // Svelte MallocDispatch definitions.
35 #define SCUDO_PREFIX(name) CONCATENATE(scudo_svelte_, name)
36 #define SCUDO_ALLOCATOR SvelteAllocator
37 
38 extern "C" void SCUDO_PREFIX(malloc_postinit)();
39 static scudo::Allocator<scudo::AndroidSvelteConfig,
40                         SCUDO_PREFIX(malloc_postinit)>
41     SCUDO_ALLOCATOR;
42 
43 #include "wrappers_c.inc"
44 
45 #undef SCUDO_ALLOCATOR
46 #undef SCUDO_PREFIX
47 
48 // TODO(kostyak): support both allocators.
49 INTERFACE void __scudo_print_stats(void) { Allocator.printStats(); }
50 
51 INTERFACE void __scudo_get_error_info(
52     struct scudo_error_info *error_info, uintptr_t fault_addr,
53     const char *stack_depot, const char *region_info, const char *memory,
54     const char *memory_tags, uintptr_t memory_addr, size_t memory_size) {
55   Allocator.getErrorInfo(error_info, fault_addr, stack_depot, region_info,
56                          memory, memory_tags, memory_addr, memory_size);
57 }
58 
59 INTERFACE const char *__scudo_get_stack_depot_addr() {
60   return Allocator.getStackDepotAddress();
61 }
62 
63 INTERFACE size_t __scudo_get_stack_depot_size() {
64   return sizeof(scudo::StackDepot);
65 }
66 
67 INTERFACE const char *__scudo_get_region_info_addr() {
68   return Allocator.getRegionInfoArrayAddress();
69 }
70 
71 INTERFACE size_t __scudo_get_region_info_size() {
72   return Allocator.getRegionInfoArraySize();
73 }
74 
75 #endif // SCUDO_ANDROID && _BIONIC
76