bionic/libc/private/libc_logging.h
Elliott Hughes 8f2a5a0b40 Clean up internal libc logging.
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
2013-03-15 16:12:58 -07:00

99 lines
3.3 KiB
C

/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _LIBC_LOGGING_H
#define _LIBC_LOGGING_H
#include <sys/cdefs.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
__BEGIN_DECLS
enum {
BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW = 80100,
BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW = 80105,
BIONIC_EVENT_MEMMOVE_BUFFER_OVERFLOW = 80110,
BIONIC_EVENT_STRNCAT_BUFFER_OVERFLOW = 80115,
BIONIC_EVENT_STRNCPY_BUFFER_OVERFLOW = 80120,
BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW = 80125,
BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW = 80130,
BIONIC_EVENT_STRCAT_INTEGER_OVERFLOW = 80200,
BIONIC_EVENT_STRNCAT_INTEGER_OVERFLOW = 80205,
BIONIC_EVENT_RESOLVER_OLD_RESPONSE = 80300,
BIONIC_EVENT_RESOLVER_WRONG_SERVER = 80305,
BIONIC_EVENT_RESOLVER_WRONG_QUERY = 80310,
};
enum {
ANDROID_LOG_UNKNOWN = 0,
ANDROID_LOG_DEFAULT, /* only for SetMinPriority() */
ANDROID_LOG_VERBOSE,
ANDROID_LOG_DEBUG,
ANDROID_LOG_INFO,
ANDROID_LOG_WARN,
ANDROID_LOG_ERROR,
ANDROID_LOG_FATAL,
ANDROID_LOG_SILENT, /* only for SetMinPriority(); must be last */
};
//
// Formatting routines for the C library's internal debugging.
// Unlike the usual alternatives, these don't allocate.
//
__LIBC_HIDDEN__ int __libc_format_buffer(char* buffer, size_t buffer_size, const char* format, ...)
__attribute__((__format__(printf, 3, 4)));
__LIBC_HIDDEN__ int __libc_format_fd(int fd, const char* format, ...)
__attribute__((__format__(printf, 2, 3)));
__LIBC_HIDDEN__ int __libc_format_log(int priority, const char* tag, const char* format, ...)
__attribute__((__format__(printf, 3, 4)));
__LIBC_HIDDEN__ int __libc_format_log_va_list(int priority, const char* tag, const char* format,
va_list ap);
//
// Event logging.
//
__LIBC_HIDDEN__ void __libc_android_log_event_int(int32_t tag, int value);
__LIBC_HIDDEN__ void __libc_android_log_event_uid(int32_t tag);
__LIBC_HIDDEN__ __noreturn void __fortify_chk_fail(const char* msg, uint32_t event_tag);
__END_DECLS
#endif