[Lldb-commits] [lldb] r219102 - Call SBDebugger::Initialize/Terminate from within Create/Destroy.

[Ed Maste]

On 6 October 2014 01:22, Matthew Gardiner <mg11 at csr.com> wrote:
> Author: mg11
> Date: Mon Oct  6 00:22:29 2014
> New Revision: 219102
>
> URL: http://llvm.org/viewvc/llvm-project?rev=219102&view=rev
> Log:
> Call SBDebugger::Initialize/Terminate from within Create/Destroy.
>
> The above change permits developers using the lldb C++ API to
> code applications in a more logical manner.

I've reverted this change because it caused a large number of tests to
segfault in Python, like so:

* thread #1: tid = 0, 0x00000000004a0b1b python2.7`??? + 267, name =
'python2.7', stop reason = signal SIGSEGV
  * frame #0: 0x00000000004a0b1b python2.7`??? + 267
    frame #1: 0x00000000004a0bbc python2.7`PyGILState_Ensure + 76
    frame #2: 0x00000008063d6b79
_lldb.so`lldb_private::ScriptInterpreterPython::Locker::DoAcquireLock()
+ 41
    frame #3: 0x00000008063d6aec
_lldb.so`lldb_private::ScriptInterpreterPython::Locker::Locker(lldb_private::ScriptInterpreterPython*,
unsigned short, unsigned short, __sFILE*, __sFILE*, __sFILE*) + 124
    frame #4: 0x00000008063e30cf
_lldb.so`lldb_private::ScriptInterpreterPython::Clear() + 79
    frame #5: 0x0000000806366e28
_lldb.so`lldb_private::CommandInterpreter::Clear() + 408
    frame #6: 0x0000000806186bef _lldb.so`lldb_private::Debugger::Clear() + 623
    frame #7: 0x00000008061885b5
_lldb.so`lldb_private::Debugger::~Debugger() + 53
    frame #8: 0x0000000806188569
_lldb.so`lldb_private::Debugger::~Debugger() + 25
    frame #9: 0x00000008061a179c
_lldb.so`std::__1::__shared_ptr_pointer<lldb_private::Debugger*,
std::__1::default_delete<lldb_private::Debugger>,
std::__1::allocator<lldb_private::Debugger> >::__on_zero_shared() +
156
    frame #10: 0x000000080abf8bbc
libc++.so.1`std::__1::__shared_weak_count::__release_shared()
[inlined] std::__1::__shared_count::__release_shared(this=0x0000000804262ac0)
+ 44 at memory.cpp:61
    frame #11: 0x000000080abf8ba8
libc++.so.1`std::__1::__shared_weak_count::__release_shared(this=0x0000000804262ac0)
+ 24 at memory.cpp:86
    frame #12: 0x0000000806199ecf
_lldb.so`std::__1::shared_ptr<lldb_private::Debugger>::~shared_ptr() +
47
    frame #13: 0x00000008061aca51
_lldb.so`std::__1::__vector_base<std::__1::shared_ptr<lldb_private::Debugger>,
std::__1::allocator<std::__1::shared_ptr<lldb_private::Debugger> >
>::~__vector_base() + 273
    frame #14: 0x00000008061ac935
_lldb.so`std::__1::vector<std::__1::shared_ptr<lldb_private::Debugger>,
std::__1::allocator<std::__1::shared_ptr<lldb_private::Debugger> >
>::~vector() + 21
    frame #15: 0x00000008012d4610
libc.so.7`__cxa_finalize(dso=0x0000000000000000) + 320 at atexit.c:198
    frame #16: 0x00000008012760cc libc.so.7`exit(status=0) + 28 at exit.c:67
    frame #17: 0x0000000000414025 python2.7`_start + 149

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