/usr/bin/gdb: line 55: awk: command not found
warning: unrecognized host cpusubtype , defaulting to host==armv7.
GNU gdb 6.3.50-20050815 (Apple version gdb-1708 + reverse.put.as patches v0.4) (Mon Apr 16 00:53:47 UTC 2012)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "arm-apple-darwin".
/private/var/root/2956: No such file or directory
Attaching to process 2956.
Segmentation fault: 11        --出这个错误

已测试了，其它进程是没问题的。

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