0d787c1fa1
This adds __libc_fatal, cleans up the internal logging code a bit more, and switches suitable callers over to __libc_fatal. In addition to logging, __libc_fatal stashes the message somewhere that the debuggerd signal handler can find it before calling abort. In the debuggerd signal handler, we pass this address to debuggerd so that it can come back with ptrace to read the message and present it to the user. Bug: 8531731 Change-Id: I416ec1da38a8a1b0d0a582ccd7c8aaa681ed4a29
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "dlmalloc.h"
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#include "private/libc_logging.h"
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// Send dlmalloc errors to the log.
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static void __bionic_heap_corruption_error(const char* function);
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static void __bionic_heap_usage_error(const char* function, void* address);
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#define PROCEED_ON_ERROR 0
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#define CORRUPTION_ERROR_ACTION(m) __bionic_heap_corruption_error(__FUNCTION__)
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#define USAGE_ERROR_ACTION(m,p) __bionic_heap_usage_error(__FUNCTION__, p)
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// Ugly inclusion of C file so that bionic specific #defines configure dlmalloc.
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#include "../upstream-dlmalloc/malloc.c"
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static void __bionic_heap_corruption_error(const char* function) {
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__libc_fatal("@@@ ABORTING: heap corruption detected by %s", function);
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}
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static void __bionic_heap_usage_error(const char* function, void* address) {
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__libc_fatal("@@@ ABORTING: invalid address or address of corrupt block %p passed to %s",
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address, function);
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// So that we can get a memory dump around the specific address.
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*((int**) 0xdeadbaad) = (int*) address;
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}
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