compiler-rt/lib/scudo/standalone/wrappers_c_bionic.cpp

   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.
  39 INTERFACE void __scudo_print_stats(void) { Allocator.printStats(); }
  40
  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
  52 INTERFACE const char *__scudo_get_stack_depot_addr() {
  53   return Allocator.getStackDepotAddress();
  54 }
  55
  56 INTERFACE size_t __scudo_get_stack_depot_size() {
  57   return sizeof(scudo::StackDepot);
  58 }
  59
  60 INTERFACE const char *__scudo_get_region_info_addr() {
  61   return Allocator.getRegionInfoArrayAddress();
  62 }
  63
  64 INTERFACE size_t __scudo_get_region_info_size() {
  65   return Allocator.getRegionInfoArraySize();
  66 }
  67
  68 INTERFACE const char *__scudo_get_ring_buffer_addr() {
  69   return Allocator.getRingBufferAddress();
  70 }
  71
  72 INTERFACE size_t __scudo_get_ring_buffer_size() {
  73   return Allocator.getRingBufferSize();
  74 }
  75
  76 #endif // SCUDO_ANDROID && _BIONIC