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3353e15270
iOS device's CrashReporterClient is currently a no-op that is incompatible with malloc/free usage. Swift SVN r17375
115 lines
3.1 KiB
C++
115 lines
3.1 KiB
C++
//===--- Errors.cpp - Error reporting utilities ---------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Utilities for reporting errors to stderr, system console, and crash logs.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <malloc/malloc.h>
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#include <asl.h>
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#if SWIFT_HAVE_CRASHREPORTERCLIENT
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#include <CrashReporterClient.h>
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// Report a message to any forthcoming crash log.
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static void
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reportOnCrash(const char *message)
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{
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static pthread_mutex_t crashlogLock = PTHREAD_MUTEX_INITIALIZER;
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pthread_mutex_lock(&crashlogLock);
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char *oldMessage = (char *)CRGetCrashLogMessage();
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char *newMessage;
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if (oldMessage) {
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asprintf(&newMessage, "%s%s", oldMessage, message);
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if (malloc_size(oldMessage)) free(oldMessage);
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} else {
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newMessage = strdup(message);
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}
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CRSetCrashLogMessage(newMessage);
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pthread_mutex_unlock(&crashlogLock);
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}
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#else
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static void
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reportOnCrash(const char *message)
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{
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// empty
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}
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#endif
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// Report a message to system console and stderr.
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static void
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reportNow(const char *message)
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{
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write(STDERR_FILENO, message, strlen(message));
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asl_log(NULL, NULL, ASL_LEVEL_ERR, "%s", message);
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}
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// Report a fatal error to system console, stderr, and crash logs.
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// <prefix>: <message>: file <file>, line <line>\n
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// The message may be omitted by passing messageLength=0.
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extern "C" void
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swift_reportFatalError(const char *prefix, intptr_t prefixLength,
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const char *message, intptr_t messageLength,
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const char *file, intptr_t fileLength,
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uintptr_t line)
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{
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char *log;
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asprintf(&log, "%.*s: %.*s%sfile %.*s, line %zu\n",
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(int)prefixLength, prefix, (int)messageLength, message,
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(messageLength ? ": " : ""), (int)fileLength, file, (size_t)line);
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reportNow(log);
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reportOnCrash(log);
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free(log);
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}
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// Report a call to an unimplemented initializer.
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// <file>: <line>: <column>: fatal error: use of unimplemented
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// initializer '<initName>' for class 'className'
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extern "C" void
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swift_reportUnimplementedInitializer(
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const char *className, intptr_t classNameLength,
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const char *file, intptr_t fileLength,
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uintptr_t line, uintptr_t column,
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const char *initName, intptr_t initNameLength)
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{
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char *log;
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asprintf(&log, "%.*s: %zu: %zu: fatal error: use of unimplemented "
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"initializer '%.*s' for class '%.*s'\n",
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(int)fileLength, file, (size_t)line, (size_t)column,
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(int)initNameLength, initName, (int)classNameLength, className);
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reportNow(log);
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reportOnCrash(log);
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free(log);
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}
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