xcode Guard Malloc 不起作用
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Guard Malloc doesn't work
提问by Alexander
I'm experimenting with different profiling options that Xcode provides, but when I enabling Guard Mallocoption in Diagnosticstab and trying to run, I'm getting this error with immediate crash:
我正在尝试使用 Xcode 提供的不同分析选项，但是当我在“诊断”选项卡中启用Guard Malloc选项并尝试运行时，我收到此错误并立即崩溃：
dyld: could not load inserted library: /usr/lib/libgmalloc.dylib
And it is right, /usr/lib/doesn't contain this library. I've located it in:
没错，/usr/lib/不包含这个库。我把它定位在：
Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk/usr/lib/
So I've created link, and started Command Line Tool(just to be sure, because it apparently part of MacOS SDK), enabled Guard Malloc again but the problem remains.
I don't quite get where is a problem: does it new Xcode 4.3 inadvertence, problem with my system or planned decision by Apple to replace it with something else (maybe Instruments)?
所以我创建了链接，并启动了命令行工具（只是为了确定，因为它显然是 MacOS SDK 的一部分），再次启用了 Guard Malloc，但问题仍然存在。
我不太明白问题出在哪里：是新的 Xcode 4.3 疏忽，我的系统有问题还是 Apple 计划决定用其他东西（也许是Instruments）替换它？
采纳答案by christophercotton
Well, I got stuck by this too. From an apple list:
嗯，我也被这个卡住了。来自苹果列表：
http://prod.lists.apple.com/archives/xcode-users/2012/Feb/msg00197.html
http://prod.lists.apple.com/archives/xcode-users/2012/Feb/msg00197.html
That's a known issue that's being investigated. I think that you may be able to work around it by installing the 10.7.3 combo installer
这是一个正在调查的已知问题。我认为您可以通过安装 10.7.3 组合安装程序来解决它
Which means you need to download the combo installer from: http://support.apple.com/kb/DL1484?
这意味着您需要从http://support.apple.com/kb/DL1484下载组合安装程序？
I'm trying it now to make sure it works, but the person on the mailing list said it worked.
我现在正在尝试以确保它有效，但邮件列表上的人说它有效。
回答by lagrangee
on device or simulator?
在设备或模拟器上？
According to http://developer.apple.com/library/ios/#DOCUMENTATION/Performance/Conceptual/ManagingMemory/Articles/MallocDebug.html
You can use this option both Mac apps and also for iPhone applications running in the simulator.
您可以在 Mac 应用程序和模拟器中运行的 iPhone 应用程序中使用此选项。
回答by Alexander
Problem came up again recently, combo update didn't helped (libgmalloc.dylib was in place).
最近问题又出现了，组合更新没有帮助（libgmalloc.dylib 到位）。
New solution was to Repair Disk Permissions in Disk Utility:
新的解决方案是在磁盘工具中修复磁盘权限：
回答by DJ van Wyk
It looks like you can't enable Guard Malloc when debugging directly on a device (at least iPad in my case), even when running the latest and greatest versions of everything. Running still works in the simulator though.
看起来您无法在设备上直接调试时启用 Guard Malloc（在我的情况下至少是 iPad），即使在运行最新和最好的所有版本时也是如此。尽管如此，在模拟器中运行仍然有效。
