b83d6747fa
Our FORTIFY _chk functions' implementations were very repetitive and verbose but not very helpful. We'd also screwed up and put the SSIZE_MAX checks where they would never fire unless you actually had a buffer as large as half your address space, which probably doesn't happen very often. Factor out the duplication and take the opportunity to actually show details like how big the overrun buffer was, or by how much it was overrun. Also remove the obsolete FORTIFY event logging. Also remove the unused __libc_fatal_no_abort. This change doesn't improve the diagnostics from the optimized assembler implementations. Change-Id: I176a90701395404d50975b547a00bd2c654e1252
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/*
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* Copyright (C) 2010 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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#ifndef _LIBC_LOGGING_H
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#define _LIBC_LOGGING_H
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#include <sys/cdefs.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdint.h>
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__BEGIN_DECLS
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enum {
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ANDROID_LOG_UNKNOWN = 0,
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ANDROID_LOG_DEFAULT, /* only for SetMinPriority() */
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ANDROID_LOG_VERBOSE,
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ANDROID_LOG_DEBUG,
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ANDROID_LOG_INFO,
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ANDROID_LOG_WARN,
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ANDROID_LOG_ERROR,
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ANDROID_LOG_FATAL,
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ANDROID_LOG_SILENT, /* only for SetMinPriority(); must be last */
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};
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enum {
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LOG_ID_MIN = 0,
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LOG_ID_MAIN = 0,
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LOG_ID_RADIO = 1,
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LOG_ID_EVENTS = 2,
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LOG_ID_SYSTEM = 3,
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LOG_ID_CRASH = 4,
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LOG_ID_MAX
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};
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struct abort_msg_t {
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size_t size;
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char msg[0];
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};
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// Formats a message to the log (priority 'fatal'), then aborts.
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__LIBC_HIDDEN__ __noreturn void __libc_fatal(const char* fmt, ...) __printflike(1, 2);
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// Formats a message to the log (priority 'fatal'), prefixed by "FORTIFY: ", then aborts.
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__LIBC_HIDDEN__ __noreturn void __fortify_fatal(const char* fmt, ...) __printflike(1, 2);
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//
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// Formatting routines for the C library's internal debugging.
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// Unlike the usual alternatives, these don't allocate, and they don't drag in all of stdio.
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//
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__LIBC_HIDDEN__ int __libc_format_buffer(char* buffer, size_t buffer_size, const char* format, ...)
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__printflike(3, 4);
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__LIBC_HIDDEN__ int __libc_format_fd(int fd, const char* format, ...)
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__printflike(2, 3);
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__LIBC_HIDDEN__ int __libc_format_log(int priority, const char* tag, const char* format, ...)
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__printflike(3, 4);
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__LIBC_HIDDEN__ int __libc_format_log_va_list(int priority, const char* tag, const char* format,
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va_list ap);
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__LIBC_HIDDEN__ int __libc_write_log(int priority, const char* tag, const char* msg);
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__END_DECLS
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#endif
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