8f2a5a0b40
We only need one logging API, and I prefer the one that does no allocation and is thus safe to use in any context. Also use O_CLOEXEC when opening the /dev/log files. Move everything logging-related into one header file. Change-Id: Ic1e3ea8e9b910dc29df351bff6c0aa4db26fbb58
60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
/*
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* Copyright (c) 2012 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <private/libc_logging.h>
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#include <stdio.h>
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/*
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* This source file should only be included by libc.so, its purpose is
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* to support legacy ARM binaries by exporting a publicly visible
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* implementation of atexit().
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*/
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extern int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
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/*
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* Register a function to be performed at exit.
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*/
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int
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atexit(void (*func)(void))
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{
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/*
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* Exit functions queued by this version of atexit will not be called
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* on dlclose(), and when they are called (at program exit), the
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* calling library may have been dlclose()'d, causing the program to
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* crash.
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*/
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static char const warning[] = "WARNING: generic atexit() called from legacy shared library\n";
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__libc_format_log(ANDROID_LOG_WARN, "libc", warning);
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fprintf(stderr, warning);
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return (__cxa_atexit((void (*)(void *))func, NULL, NULL));
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}
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