[LLVMdev] Missing libclang_rt.san-x86_64.a file for Compiler-rt

Hongxu Chen leftcopy.chx at gmail.com
Thu Apr 2 02:42:18 PDT 2015


Thanks for your information, I've successfully built compiler-rt by
removing build directories and pull from the latest source code.

Best Regards,
Hongxu

On Thu, Apr 2, 2015 at 5:06 AM Alexey Samsonov <vonosmas at gmail.com> wrote:

> Right. libclang_rt.san is now gone. Fresh compiler-rt build doesn't
> contain this library, and fresh Clang is not using it.
>
> On Wed, Apr 1, 2015 at 10:36 AM, Kostya Serebryany <kcc at google.com> wrote:
>
>> Trying building from scratch (remove the build directory, sync all llvm
>> subprojects to the same revision, build again)
>>
>> --kcc
>>
>> On Wed, Apr 1, 2015 at 7:58 AM, Hongxu Chen <leftcopy.chx at gmail.com>
>> wrote:
>>
>>> Hi everyone,
>>>
>>>     (Sorry if I'm asking at the wrong mail listing, but compiler-rt page
>>> tells I'd better write on llvm-dev rather than cfe-dev/cfe-users.)
>>>
>>>     I've just built LLVM/Clang+Compiler-rt (Compiler-rt is put inside
>>> llvm/projects folder) and tried the -fsanitize option. But strangely the
>>> link failed since it cannot find *libclang_rt.san-x86_64.a*. The error
>>> message is as below:
>>>
>>>         /usr/bin/ld: cannot find
>>> /home/hongxu/RESEARCH/llvm-git/obj/bin/../lib/clang/3.7.0/lib/linux/libclang_rt.san-x86_64.a:
>>> No such file or directory
>>>         clang-3.7: error: linker command failed with exit code 1 (use -v
>>> to see invocation)
>>>
>>>     However inside the folder
>>> */home/hongxu/RESEARCH/llvm-git/obj/bin/../lib/clang/3.7.0/lib/linux/* there
>>> are other libraries:
>>>
>>>        > pwd
>>>        /home/hongxu/RESEARCH/llvm-git/obj/lib/clang/3.7.0/lib/linux/
>>>        > ll *.a |grep x86 | awk '{print $9}'
>>>        libclang_rt.asan_cxx-x86_64.a
>>>        libclang_rt.asan-preinit-x86_64.a
>>>        libclang_rt.asan-x86_64.a
>>>        libclang_rt.builtins-x86_64.a
>>>        libclang_rt.dd-x86_64.a
>>>        libclang_rt.dfsan-libc-x86_64.a
>>>        libclang_rt.dfsan-x86_64.a
>>>        libclang_rt.lsan-x86_64.a
>>>        libclang_rt.msan-x86_64.a
>>>        libclang_rt.profile-x86_64.a
>>>        libclang_rt.tsan-x86_64.a
>>>        libclang_rt.ubsan_cxx-x86_64.a
>>>        libclang_rt.ubsan_standalone_cxx-x86_64.a
>>>        libclang_rt.ubsan_standalone-x86_64.a
>>>        libclang_rt.ubsan-x86_64.a
>>>
>>>        I found that "libclang_rt.san-x86_64.a" was present at least for
>>> Clang-3.6 for ArchLinux(
>>> https://www.archlinux.org/packages/extra/x86_64/clang/files/). So how
>>> can I build to get that library?
>>>
>>>
>>> Thanks and Regards,
>>> Hongxu
>>>
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>
>>>
>>
>> _______________________________________________
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>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
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>>
>>
>
>
> --
> Alexey Samsonov
> vonosmas at gmail.com
>
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