[cfe-users] Building stblibc++ with support for MSAN

[Daniel Mosesson]

I was able to build libc++, but when I try to use -stdlib=libc++ I get the
following error:

/usr/bin/ld: /tmp/test-347fdf.o: undefined reference to symbol
'__cxa_free_exception@@CXXABI_1.3'
/usr/lib/x86_64-linux-gnu/libstdc++.so.6: error adding symbols: DSO missing
from command line
clang-3.5: error: linker command failed with exit code 1 (use -v to see
invocation)

Any ideas what is going wrong here? Building on Ubuntu Saucy
-----Original Message-----
From: cfe-users-bounces at cs.uiuc.edu [mailto:cfe-users-bounces at cs.uiuc.edu]
On Behalf Of Evgeniy Stepanov
Sent: Friday, January 17, 2014 2:41 AM
To: Daniel Mosesson
Cc: cfe-users at cs.uiuc.edu
Subject: Re: [cfe-users] Building stblibc++ with support for MSAN

You may want to look at libc++ as a replacement for libstdc++.


On Fri, Jan 17, 2014 at 11:39 AM, Evgeniy Stepanov
<eugeni.stepanov at gmail.com> wrote:
> Try 4.8 branch of gcc. This process is known to work with google/gcc-4.8.
> There is no upstream testing of building libstdc++ with clang, and it 
> is not an officially supported configuration, so it may break from 
> time to time.
>
>
> On Fri, Jan 17, 2014 at 12:19 AM, Daniel Mosesson <danmosesson at yahoo.com>
wrote:
>> I tried to follow the new instructions, and at the last step (make) I 
>> get the following error
>>
>> In file included from ../../libstdc++-v3/libsupc++/eh_aux_runtime.cc:29:
>> In file included from
/home/daniel/programming/SomeLocalDir/libstdc++-v3/libsupc++/unwind-cxx.h:35
:
>> /home/daniel/programming/SomeLocalDir/build/include/cstddef:51:11: error:
no
>>       member named 'max_align_t' in the global namespace
>>   using ::max_align_t;
>>         ~~^
>> 1 error generated.
>> make[2]: *** [eh_aux_runtime.lo] Error 1
>> make[2]: Leaving directory
`/home/daniel/programming/SomeLocalDir/build/libsupc++'
>> make[1]: *** [all-recursive] Error 1
>> make[1]: Leaving directory `/home/daniel/programming/SomeLocalDir/build'
>> make: *** [all] Error 2
>>
>> Seems like the same issue that I was getting before.
>>
>> This is with TOT-gcc  4.9.0 20140116 (experimental) and clang version 
>> 3.5 (198044)
>>
>> Any ideas?
>>
>> Thank you,
>> Daniel
>> -----Original Message-----
>> From: Evgeniy Stepanov [mailto:eugenis at google.com]
>> Sent: Thursday, January 16, 2014 5:52 AM
>> To: Daniel Mosesson
>> Subject: Re: [cfe-users] Building stblibc++ with support for MSAN
>>
>> This one? Works for me.
>> https://code.google.com/p/memory-sanitizer/wiki/InstrumentingLibstdcx
>> x
>>
>> On Thu, Jan 16, 2014 at 2:25 PM, Daniel Mosesson <danmosesson at yahoo.com>
wrote:
>>> Are the instructions at the same link?
>>> That link seems to be dead now.
>>>
>>> -----Original Message-----
>>> From: Evgeniy Stepanov [mailto:eugenis at google.com]
>>> Sent: Thursday, January 16, 2014 3:46 AM
>>> To: Alexey Samsonov
>>> Cc: Daniel B Mosesson; cfe-users at cs.uiuc.edu
>>> Subject: Re: [cfe-users] Building stblibc++ with support for MSAN
>>>
>>> I've updated build instructions, please see if they work for you.
>>>
>>>
>>> On Thu, Jan 16, 2014 at 10:41 AM, Alexey Samsonov <samsonov at google.com>
wrote:
>>>> +eugenis
>>>>
>>>> Evgeniy, are these intructions still relevant?
>>>>
>>>> On Fri, Jan 3, 2014 at 1:19 AM, Daniel B Mosesson 
>>>> <dmosess1 at binghamton.edu> wrote:
>>>>> How can I build libstdc++ with instrumentation to allow MSAN to work?
>>>>> I have attempted to follow the instructions listed at 
>>>>> https://code.google.com/p/memory-sanitizer/wiki/InstrumentingLibst
>>>>> dc
>>>>> xx,
>>>>> but there were a few issues:
>>>>>
>>>>> 1) I had to change the path that is used to find the library
>>>>> 2) It could not find ::max_align_t, so I simply defined it to be 
>>>>> 16
>>>>> 3) "No rule to make target../src/c++11/libc++11convenience.la',
>>>>> needed by libstdc++.la"
>>>>>
>>>>> Could not figure this out.
>>>>>
>>>>> Any help?
>>>>> _______________________________________________
>>>>> cfe-users mailing list
>>>>> cfe-users at cs.uiuc.edu
>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-users
>>>>
>>>>
>>>>
>>>> --
>>>> Alexey Samsonov, MSK
>>>
>>
>>
>> _______________________________________________
>> cfe-users mailing list
>> cfe-users at cs.uiuc.edu
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