What is the correct debugger used for debugging program built with clang++?

[Nan Xiao]

Hi misc@,

The default "c++" compiler shipped with OpenBSD doesn't support "C++11",
so I use "clang++" to build program which use Standard C++ Thread
Library:

# cat hello.cpp
#include <thread>
#include <iostream>

void hello()
{
    std::cout << "Hello World!\n";
}

int main(void)
{
    std::thread t(hello);
    t.join();
    return 0;
}

# clang++ -g -pthread -std=c++11 hello.cpp

It seems OpenBSD doesn't support lldb, so I need to use gdb to debug
program:

# gdb -q a.out
(gdb) start
Die: DW_TAG_<unknown> (abbrev = 91, offset = 10917)
has children: FALSE
attributes:
DW_AT_type (DW_FORM_ref4) constant ref: 155 (adjusted)
Dwarf Error: Cannot find type of die [in module /root/Project/a.out]
Hello World!

Program exited normally.
Current language:  auto; currently c
(gdb)

It seems gdb doesn't support well in debugging program compiled with
clang++. So is there any method or debugger used for debuggin programs
built with clang++?

Thanks very much in advance!
Best Regards
Nan Xiao