Hongxu Chen
2015-Apr-01 14:58 UTC
[LLVMdev] Missing libclang_rt.san-x86_64.a file for Compiler-rt
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
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20150401/608c9746/attachment.html>
Kostya Serebryany
2015-Apr-01 17:36 UTC
[LLVMdev] Missing libclang_rt.san-x86_64.a file for Compiler-rt
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 > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150401/0308c344/attachment.html>
Alexey Samsonov
2015-Apr-01 21:06 UTC
[LLVMdev] Missing libclang_rt.san-x86_64.a file for Compiler-rt
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 >> >> > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > >-- Alexey Samsonov vonosmas at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150401/72bc6ade/attachment.html>