Re: [Discuss-gnuradio] New Module using gr_modtool Error

Hi Vamsi - I'm glad that fixed the issue for you. The crash happens because the OOT is being linked to a specific ABI (e.g., MacPorts Python library), while the runtime is trying to use a different API (system Python library). The libraries' ABIs are different enough to confuse Apple's dynamic library loader (DYLD), and Apple's DYLD also isn't smart enough to work through the differences. I think the Python library APIs are the same. A possible solution to this overall issue is to not specifically link OOTs with a Python library, and instead force Python symbols to be loaded at runtime from whatever Python library is chosen. This solution has been claimed to work from HomeBrew users; I've tried to use their patches and failed when using MacPorts, which is why these changes are not in place. I hope this is useful! - MLD

---------- Forwarded message ----------

From: vamsi krishna <vamsi765@yahoo.com>

Date: Mon, Nov 21, 2016 at 10:04 AM

Subject: Re: [Discuss-gnuradio] New Module using gr_modtool Error

That fixed the issue! I was trying to figure it out for 10hours!

But I'm not sure why the error occurs only for new OOT modules created (either in my computer or other ubuntu computer). The cmake command which I used previously (with only install prefix option) works alright with older OOT modules, is there a particular reason for this?

Here is the error:

Process:               Python [10887]

Path:                  /opt/local/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python

Identifier:            Python

Version:               2.7.12 (2.7.12)

Code Type:             X86-64 (Native)

Parent Process:        Python [10873]

Responsible:           Python [10887]

User ID:               501

Date/Time:             2016-11-20 15:09:10.468 -0800

OS Version:            Mac OS X 10.12.1 (16B2555)

Report Version:        12

Anonymous UUID:        D8090335-A434-F732-61A3-656D0819D724

Time Awake Since Boot: 10000 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_CRASH (SIGABRT)

Exception Codes:       0x0000000000000000, 0x0000000000000000

Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:

abort() called

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread

0   libsystem_kernel.dylib         0x00007fffbb01edda __pthread_kill + 10

1   libsystem_pthread.dylib       0x00007fffbb10a787 pthread_kill + 90

2   libsystem_c.dylib             0x00007fffbaf84420 abort + 129

3   org.python.python             0x000000010dbfa8ee Py_FatalError + 49

4   org.python.python             0x000000010dbf9de8 PyThreadState_Get + 28

5   org.python.python             0x000000010dbf6ce2 Py_InitModule4_64 + 62

6   _test_swig.so                 0x000000010db27750 init_test_swig + 800

7   org.python.python             0x000000010d37fd5c _PyImport_LoadDynamicModule + 140

Thread 0 crashed with X86 Thread State (64-bit):

  rax: 0x0000000000000000  rbx: 0x0000000000000006  rcx: 0x00007fff52959058  rdx: 0x0000000000000000

  rdi: 0x0000000000000307  rsi: 0x0000000000000006  rbp: 0x00007fff52959080  rsp: 0x00007fff52959058

   r8: 0x0000000000000040   r9: 0x00007fffc3bf4040  r10: 0x0000000008000000  r11: 0x0000000000000206

  r12: 0x00007f9854065c00  r13: 0x000000010db3db40  r14: 0x00007fffc3c103c0  r15: 0x000000010d43cbc8

  rip: 0x00007fffbb01edda  rfl: 0x0000000000000206  cr2: 0x00007fffc3bf2128

  

Logical CPU:     0

Error Code:      0x02000148

Trap Number:     133

Binary Images:

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