c++ - 仅在NetBSD上的线程本地存储段错误？

尝试运行a C++ program，我得到了细分
似乎特定于NetBSD的故障。伯特·休伯特（Bert Hubert）写道
简单的测试程序（在此消息末尾），实际上，它仅在NetBSD上崩溃。

% uname -a
NetBSD golgoth 5.0.1 NetBSD 5.0.1 (GENERIC) #0: Thu Oct  1 15:46:16 CEST 2009
+stephane@golgoth:/usr/obj/sys/arch/i386/compile/GENERIC i386

% g++ --version
g++ (GCC) 4.1.3 20080704 prerelease (NetBSD nb2 20081120)
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

% gdb thread-local-storage-powerdns
GNU gdb 6.5
Copyright (C) 2006 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 "i386--netbsdelf"...
(gdb) run
Starting program: /home/stephane/Programmation/C++/essais/thread-local-storage-powerdns

Program received signal SIGSEGV, Segmentation fault.
0x0804881b in main () at thread-local-storage-powerdns.cc:20
20        t_a = new Bogo('a');
(gdb)

在其他Unix上，它可以正常工作。 NetBSD中存在一个已知问题吗？
C ++线程本地存储？

#include <stdio.h>


class Bogo
{
public:

  explicit Bogo(char a)
  {
 d_a = a;
  }

  char d_a;
};

__thread Bogo* t_a;

int main()
{
  t_a = new Bogo('a');

  Bogo* b = t_a;

  printf("%c\n", b->d_a);
}

最佳答案

NetBSD不支持线程本地存储。但是，大多数其他BSD都可以。

关于c++ - 仅在NetBSD上的线程本地存储段错误？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/2914856/