Question

计算机设置：Mac OS X Yosemite

我的gdb之前功能很好。但今天，

当我尝试使用gdb进行调试时：

(gdb) run 
Starting program: /Users/JackZhao/Desktop/work/reviewC/pp 
Unable to find Mach task port for process-id 627: (os/kern) failure (0x5).
(please check gdb is codesigned - see taskgated(8))

我试图像这样添加密钥链; http://ntraft.com/installing-gdb-on-os-x-mavericks/ 还有这个： https://sourceware.org/gdb/wiki/BuildingOnDarwin

然后重启我的电脑。但问题仍然存在。

Answer 1

这可以通过在taskgated plist中设置-p来解决：

编辑（作为sudo）：/System/Library/LaunchDaemons/com.apple.taskgated.plist

        ... <snip> ...

        <key>ProgramArguments</key>
        <array>
                <string>/usr/libexec/taskgated</string>
                <string>-sp</string>
        </array>

来自taskgated手册：

OPTIONS
 -p       Accepts the old (Tiger) convention that a process with a primary effective group of procmod or procview is allowed to get task ports. Without this option, this legacy mode
          is not supported.

参考：https://trac.macports.org/ticket/36727

Mac OS X无法运行GDB

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