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 SCUDO_REQUIRE_CONSTANT_INITIALIZATION 27 static scudo::Allocator<scudo::AndroidConfig, SCUDO_PREFIX(malloc_postinit)> 28 SCUDO_ALLOCATOR; 29 30 #include "wrappers_c.inc" 31 32 #undef SCUDO_ALLOCATOR 33 #undef SCUDO_PREFIX 34 35 // Svelte MallocDispatch definitions. 36 #define SCUDO_PREFIX(name) CONCATENATE(scudo_svelte_, name) 37 #define SCUDO_ALLOCATOR SvelteAllocator 38 39 extern "C" void SCUDO_PREFIX(malloc_postinit)(); 40 SCUDO_REQUIRE_CONSTANT_INITIALIZATION 41 static scudo::Allocator<scudo::AndroidSvelteConfig, 42 SCUDO_PREFIX(malloc_postinit)> 43 SCUDO_ALLOCATOR; 44 45 #include "wrappers_c.inc" 46 47 #undef SCUDO_ALLOCATOR 48 #undef SCUDO_PREFIX 49 50 // TODO(kostyak): support both allocators. 51 INTERFACE void __scudo_print_stats(void) { Allocator.printStats(); } 52 53 INTERFACE void 54 __scudo_get_error_info(struct scudo_error_info *error_info, 55 uintptr_t fault_addr, const char *stack_depot, 56 const char *region_info, const char *ring_buffer, 57 const char *memory, const char *memory_tags, 58 uintptr_t memory_addr, size_t memory_size) { 59 Allocator.getErrorInfo(error_info, fault_addr, stack_depot, region_info, 60 ring_buffer, memory, memory_tags, memory_addr, 61 memory_size); 62 } 63 64 INTERFACE const char *__scudo_get_stack_depot_addr() { 65 return Allocator.getStackDepotAddress(); 66 } 67 68 INTERFACE size_t __scudo_get_stack_depot_size() { 69 return sizeof(scudo::StackDepot); 70 } 71 72 INTERFACE const char *__scudo_get_region_info_addr() { 73 return Allocator.getRegionInfoArrayAddress(); 74 } 75 76 INTERFACE size_t __scudo_get_region_info_size() { 77 return Allocator.getRegionInfoArraySize(); 78 } 79 80 INTERFACE const char *__scudo_get_ring_buffer_addr() { 81 return Allocator.getRingBufferAddress(); 82 } 83 84 INTERFACE size_t __scudo_get_ring_buffer_size() { 85 return Allocator.getRingBufferSize(); 86 } 87 88 #endif // SCUDO_ANDROID && _BIONIC 89