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

[Alexey Samsonov]

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
>>
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>>
>>
>
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>


-- 
Alexey Samsonov
vonosmas at gmail.com
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