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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *  * Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  *  * Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in
     12  *    the documentation and/or other materials provided with the
     13  *    distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
     22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
     25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _LIBC_LOGGING_H
     30 #define _LIBC_LOGGING_H
     31 
     32 #include <sys/cdefs.h>
     33 #include <stdarg.h>
     34 #include <stddef.h>
     35 #include <stdint.h>
     36 
     37 __BEGIN_DECLS
     38 
     39 #include "libc_events.h"
     40 
     41 enum {
     42   ANDROID_LOG_UNKNOWN = 0,
     43   ANDROID_LOG_DEFAULT,    /* only for SetMinPriority() */
     44 
     45   ANDROID_LOG_VERBOSE,
     46   ANDROID_LOG_DEBUG,
     47   ANDROID_LOG_INFO,
     48   ANDROID_LOG_WARN,
     49   ANDROID_LOG_ERROR,
     50   ANDROID_LOG_FATAL,
     51 
     52   ANDROID_LOG_SILENT,     /* only for SetMinPriority(); must be last */
     53 };
     54 
     55 struct abort_msg_t {
     56   size_t size;
     57   char msg[0];
     58 };
     59 
     60 __LIBC_HIDDEN__ void __libc_set_abort_message(const char* msg);
     61 
     62 //
     63 // Formats a message to the log (priority 'fatal'), then aborts.
     64 //
     65 
     66 __LIBC_HIDDEN__ __noreturn void __libc_fatal(const char* format, ...)
     67     __printflike(1, 2);
     68 
     69 //
     70 // Formats a message to the log (priority 'fatal'), but doesn't abort.
     71 // Used by the malloc implementation to ensure that debuggerd dumps memory
     72 // around the bad address.
     73 //
     74 
     75 __LIBC_HIDDEN__ void __libc_fatal_no_abort(const char* format, ...)
     76     __printflike(1, 2);
     77 
     78 //
     79 // Formatting routines for the C library's internal debugging.
     80 // Unlike the usual alternatives, these don't allocate.
     81 //
     82 
     83 __LIBC_HIDDEN__ int __libc_format_buffer(char* buffer, size_t buffer_size, const char* format, ...)
     84     __printflike(3, 4);
     85 
     86 __LIBC_HIDDEN__ int __libc_format_fd(int fd, const char* format, ...)
     87     __printflike(2, 3);
     88 
     89 __LIBC_HIDDEN__ int __libc_format_log(int priority, const char* tag, const char* format, ...)
     90     __printflike(3, 4);
     91 
     92 __LIBC_HIDDEN__ int __libc_format_log_va_list(int priority, const char* tag, const char* format,
     93                                               va_list ap);
     94 
     95 //
     96 // Event logging.
     97 //
     98 
     99 __LIBC_HIDDEN__ void __libc_android_log_event_int(int32_t tag, int value);
    100 __LIBC_HIDDEN__ void __libc_android_log_event_uid(int32_t tag);
    101 
    102 __LIBC_HIDDEN__ __noreturn void __fortify_chk_fail(const char* msg, uint32_t event_tag);
    103 
    104 __END_DECLS
    105 
    106 #endif
    107