1a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project/* 22c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * Copyright (C) 2012 The Android Open Source Project 3a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 42c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * Licensed under the Apache License, Version 2.0 (the "License"); 52c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * you may not use this file except in compliance with the License. 62c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * You may obtain a copy of the License at 7a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project * 82c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * http://www.apache.org/licenses/LICENSE-2.0 92c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * 102c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * Unless required by applicable law or agreed to in writing, software 112c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * distributed under the License is distributed on an "AS IS" BASIS, 122c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 132c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * See the License for the specific language governing permissions and 142c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * limitations under the License. 152c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers */ 16f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 172c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#include "dlmalloc.h" 18f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 192c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers/* Bionic error handling declarations */ 202c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#define PROCEED_ON_ERROR 0 212c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogersstatic void __bionic_heap_error(const char* msg, const char* function, void* p); 222c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#define CORRUPTION_ERROR_ACTION(m) \ 232c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers __bionic_heap_error("HEAP MEMORY CORRUPTION", __FUNCTION__, NULL) 242c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#define USAGE_ERROR_ACTION(m,p) \ 252c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers __bionic_heap_error("ARGUMENT IS INVALID HEAP ADDRESS", __FUNCTION__, p) 26a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project 27a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project/* 282c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * Ugly inclusion of C file so that bionic specific #defines configure 292c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * dlmalloc. 302c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers */ 312c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#include "../upstream-dlmalloc/malloc.c" 32f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 33f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 342c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers/* Bionic error handling definitions */ 352c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers/* Convert a pointer into hex string */ 362c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogersstatic void __bionic_itox(char* hex, void* ptr) 37a27d2baa0c1a2ec70f47ea9199b1dd6762c8a34The Android Open Source Project{ 382c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers intptr_t val = (intptr_t) ptr; 392c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers /* Terminate with NULL */ 402c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers hex[8] = 0; 412c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers int i; 42f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 432c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers for (i = 7; i >= 0; i--) { 442c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers int digit = val & 15; 452c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers hex[i] = (digit <= 9) ? digit + '0' : digit - 10 + 'a'; 462c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers val >>= 4; 47f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom } 48f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom} 49f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 502c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers#include <private/logd.h> 512c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogersstatic void __bionic_heap_error(const char* msg, const char* function, void* p) 52f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom{ 532c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers /* We format the buffer explicitely, i.e. without using snprintf() 542c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * which may use malloc() internally. Not something we can trust 552c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers * if we just detected a corrupted heap. 562c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers */ 572c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers char buffer[256]; 582c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcpy(buffer, "@@@ ABORTING: LIBC: ", sizeof(buffer)); 592c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcat(buffer, msg, sizeof(buffer)); 602c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers if (function != NULL) { 612c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcat(buffer, " IN ", sizeof(buffer)); 622c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcat(buffer, function, sizeof(buffer)); 63f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom } 64f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 652c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers if (p != NULL) { 662c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers char hexbuffer[9]; 672c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers __bionic_itox(hexbuffer, p); 682c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcat(buffer, " addr=0x", sizeof(buffer)); 692c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers strlcat(buffer, hexbuffer, sizeof(buffer)); 70f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom } 71f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 722c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers __libc_android_log_write(ANDROID_LOG_FATAL, "libc", buffer); 73f72ee269274170cd46af2844a2fe88767fb6e43cBrian Carlstrom 742c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers /* So that we can get a memory dump around p */ 752c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers *((int **) 0xdeadbaad) = (int *) p; 762c344d3631eaad4bcfec821ea0e9f158c537a686Ian Rogers} 77