If you built clang yourself, you'll need compiler-rt to link against. If you installed clang through a package manager check that compiler-rt is part of the package you obtained.
Sam > On 26 Jun 2017, at 3:06 pm, Alex Chen via cfe-users > <cfe-users@lists.llvm.org> wrote: > > I am using clang 3.8.0 and gcc 6.2.1 on CentOS 7.3. Everything works fine > until I add ‘-fsanitize=safe-stack’ to the compiler and linker flags. > The shared libraries are built fine but executables linking with these > libraries cannot be generated due to a unresolved symbol > __safestack_unsaft_stack_ptr. > Is this because that symbol is only available in Clang’s libc++ runtime > library but not in gcc’s libstdc++? > > > Alex Chen > > _______________________________________________ > cfe-users mailing list > cfe-users@lists.llvm.org <mailto:cfe-users@lists.llvm.org> > http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users > <http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users> -- Archibald Sam Elliott as...@cs.washington.edu PhD Student, PLSE Group
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