macos - gdb 不适用于 macos High Sierra 10.13.3

Question

我已经用brew安装了gdb 8.1。

我也有 codesign gdb 和 .gdbinit，如下所示:

关闭 shell 启动。

我已禁用 SIP 功能:

$ csrutil status
System Integrity Protection status: disabled.

但是gdb仍然无法工作:

#include <iostream>
using namespace std;

int main() {
  cout << "hello world!" << endl;
  return 0;
}

编译命令:

g++ -g test.cpp

gdb 输出:

GNU gdb (GDB) 8.1
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin17.3.0".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from a.out...Reading symbols from /Users/mypc/Downloads/a.out.dSYM/Contents/Resources/DWARF/a.out...done.
done.
(gdb) run
Starting program: /Users/mypc/Downloads/a.out 
[New Thread 0x2503 of process 802]
[New Thread 0x2303 of process 802]
During startup program terminated with signal ?, Unknown signal.
(gdb) 

使 gdb 在 Macos Sierra 上工作的正确步骤是什么？

Answer 1

这是由最新的gdb 8.1引起的，将gdb降级到8.0.1可以解决这个问题。

如何降级到 gdb 8.0.1

• 取消链接当前 gdb:brew unlink gdb
• 安装gdb 8.0.1:brew install https://raw.githubusercontent.com/Homebrew/homebrew-core/9ec9fb27a33698fc7636afce5c1c16787e9ce3f3/Formula/gdb.rb
• 可选:避免使用 brew pin gdb 升级 gdb