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 "internal_defs.h"
16 #include "platform.h"
17 #include "scudo/interface.h"
18 #include "wrappers_c.h"
19 #include "wrappers_c_checks.h"
20
21 #include <stdint.h>
22 #include <stdio.h>
23
24 // Regular MallocDispatch definitions.
25 #define SCUDO_PREFIX(name) CONCATENATE(scudo_, name)
26 #define SCUDO_ALLOCATOR Allocator
27
28 extern "C" void SCUDO_PREFIX(malloc_postinit)();
29 SCUDO_REQUIRE_CONSTANT_INITIALIZATION
30 static scudo::Allocator<scudo::Config, SCUDO_PREFIX(malloc_postinit)>
31 SCUDO_ALLOCATOR;
32
33 #include "wrappers_c.inc"
34
35 #undef SCUDO_ALLOCATOR
36 #undef SCUDO_PREFIX
37
38 // TODO(kostyak): support both allocators.
__scudo_print_stats(void)39 INTERFACE void __scudo_print_stats(void) { Allocator.printStats(); }
40
__scudo_get_error_info(struct scudo_error_info * error_info,uintptr_t fault_addr,const char * stack_depot,size_t stack_depot_size,const char * region_info,const char * ring_buffer,size_t ring_buffer_size,const char * memory,const char * memory_tags,uintptr_t memory_addr,size_t memory_size)41 INTERFACE void __scudo_get_error_info(
42 struct scudo_error_info *error_info, uintptr_t fault_addr,
43 const char *stack_depot, size_t stack_depot_size, const char *region_info,
44 const char *ring_buffer, size_t ring_buffer_size, const char *memory,
45 const char *memory_tags, uintptr_t memory_addr, size_t memory_size) {
46 (void)(stack_depot_size);
47 Allocator.getErrorInfo(error_info, fault_addr, stack_depot, region_info,
48 ring_buffer, ring_buffer_size, memory, memory_tags,
49 memory_addr, memory_size);
50 }
51
__scudo_get_stack_depot_addr()52 INTERFACE const char *__scudo_get_stack_depot_addr() {
53 return Allocator.getStackDepotAddress();
54 }
55
__scudo_get_stack_depot_size()56 INTERFACE size_t __scudo_get_stack_depot_size() {
57 return sizeof(scudo::StackDepot);
58 }
59
__scudo_get_region_info_addr()60 INTERFACE const char *__scudo_get_region_info_addr() {
61 return Allocator.getRegionInfoArrayAddress();
62 }
63
__scudo_get_region_info_size()64 INTERFACE size_t __scudo_get_region_info_size() {
65 return Allocator.getRegionInfoArraySize();
66 }
67
__scudo_get_ring_buffer_addr()68 INTERFACE const char *__scudo_get_ring_buffer_addr() {
69 return Allocator.getRingBufferAddress();
70 }
71
__scudo_get_ring_buffer_size()72 INTERFACE size_t __scudo_get_ring_buffer_size() {
73 return Allocator.getRingBufferSize();
74 }
75
76 #endif // SCUDO_ANDROID && _BIONIC
77