iOS9：崩溃报告中的重复行导致symbolicatecrash卡住

This is 不是一个问题因为我已经找到了解决方法。我将其发布，以便其他人可以利用我在其上花费的时间，并使用我建议的解决方法。

我收到了一些奇怪的崩溃报告 - 一行被重复了很多次：

...
0x190e08000 -        0x190e49fff  Notes arm64  <f45c09ce977b3282ab0e879252dfebee> /System/Library/PrivateFrameworks/Notes.framework/Notes
0x190f9c000 -        0x190fa6fff  NotificationsUI arm64  <73dcb247ed183ce7bb330d7bb55f93bd> /System/Library/PrivateFrameworks/NotificationsUI.framework/NotificationsUI
0x190fa8000 -        0x190faafff  OAuth arm64  <c2658cb3208b342dbe1e91cea30ebdd5> /System/Library/PrivateFrameworks/OAuth.framework/OAuth
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x191900000 -        0x191903fff  ParsecSubscriptionServiceSupport arm64  <c70467637c9332c7b0be897200c9ccb1> /System/Library/PrivateFrameworks/ParsecSubscriptionServiceSupport.framework/ParsecSubscriptionServiceSupport
0x1919c8000 -        0x1919ebfff  Pegasus arm64  <82f60f2d5ad73b5fa89d283a4e992e88> /System/Library/PrivateFrameworks/Pegasus.framework/Pegasus
0x191a30000 -        0x191a57fff  PersistentConnection arm64  <8d0b7602daee3aa588c37704a6e3a206> /System/Library/PrivateFrameworks/PersistentConnection.framework/PersistentConnection
...

它导致 symbolicatecrash (perl) 脚本卡住。 原因是该脚本最初旨在链接相似的条目，假设它们具有不同的基地址。然而，该代码从未工作，因为它有一个错误：

# add ourselves to that chain
$images{$nextIDKey}{nextID} = $image{base};

# and store under the key we just recorded
$bundlename = $bundlename . $image{base};

错误是第一行实际上应该是：

$images{$nextIDKey}{nextID} = $bundlename . $image{base};

不过我建议解决方法这将通过添加忽略这些重复的行next命令稍微高于此代码，即

# frameworks and apps (and whatever) may share the same name, so disambiguate
if ( defined($images{$bundlename}) ) {
    next;

这不是一个干净的解决方案，因为我们在这里缺少一些保护，但至少它适用于大多数情况。

无论如何，希望苹果尽快删除这些重复内容。

您可以使用以下 shell 脚本来修补 symbolicatecrash 来修复它：

curl -o /tmp/t.patch https://raw.githubusercontent.com/zqxiaojin/OptSymbolicatecrash/master/fix_dead_loop.patch && cd `xcode-select -p`/../SharedFrameworks/DTDeviceKitBase.framework/Versions/A/Resources/ && sudo patch symbolicatecrash  /tmp/t.patch && cd -

或者从我的github复制symbolicatecrashhttps://github.com/zqxiaojin/OptSymbolicatecrash https://github.com/zqxiaojin/OptSymbolicatecrash