[libc] [libcxxabi] [libcxx] [lld] [flang] [libclc] [clang] [compiler-rt] [clang-tools-extra] [lldb] [llvm] [Thumb,ELF] Fix access to dso_preemptable __stack_chk_guard with static relocation model (PR #78950)

[Fangrui Song via llvm-commits]

https://github.com/MaskRay edited https://github.com/llvm/llvm-project/pull/78950