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
52 __scudo_get_error_info(struct scudo_error_info *error_info,
53                        uintptr_t fault_addr, const char *stack_depot,
54                        const char *region_info, const char *ring_buffer,
55                        const char *memory, const char *memory_tags,
56                        uintptr_t memory_addr, size_t memory_size) {
57   Allocator.getErrorInfo(error_info, fault_addr, stack_depot, region_info,
58                          ring_buffer, memory, memory_tags, memory_addr,
59                          memory_size);
60 }
61 
62 INTERFACE const char *__scudo_get_stack_depot_addr() {
63   return Allocator.getStackDepotAddress();
64 }
65 
66 INTERFACE size_t __scudo_get_stack_depot_size() {
67   return sizeof(scudo::StackDepot);
68 }
69 
70 INTERFACE const char *__scudo_get_region_info_addr() {
71   return Allocator.getRegionInfoArrayAddress();
72 }
73 
74 INTERFACE size_t __scudo_get_region_info_size() {
75   return Allocator.getRegionInfoArraySize();
76 }
77 
78 INTERFACE const char *__scudo_get_ring_buffer_addr() {
79   return Allocator.getRingBufferAddress();
80 }
81 
82 INTERFACE size_t __scudo_get_ring_buffer_size() {
83   return Allocator.getRingBufferSize();
84 }
85 
86 #endif // SCUDO_ANDROID && _BIONIC
87