mac gdb调试失败解决

环境

• macOS Big Sur 11.6.7

安装GDB

• brew install gdb

问题

mac默认无权限操作其他进程。

Starting program: /Users/wangxinguo/C/DataStruct/3/a.out
Unable to find Mach task port for process-id 5222: (os/kern) failure (0x5).
 (please check gdb is codesigned - see taskgated(8))
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• 参考如下
• 创建系统自签名证书
• vim gdb-entitlement.xml （很重要）

    com.apple.security.cs.debugger
    

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• % which gdb
  /usr/local/bin/gdb
• codesign --entitlements gdb-entitlement.xml -fs gdb_codesign /usr/local/bin/gdb
• sudo killall taskgated
• 也可以直接使用sudo gdb a.out

第一次打开gdb会卡住

gdb New Thread 0x1903 of process
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• echo “set startup-with-shell off” >> ~/.gdbinit
• source ~/.gdbinit

解决

• 调试

参考

• https://www.congcong.us/post/mac_check_gdb_is_codesigned_see_taskgated_8_problem.html
• https://blog.csdn.net/LU_ZHAO/article/details/104810246