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

[Fangrui Song via cfe-commits]

MaskRay wrote:

> (the commit message seems odd; intentional?)

Hopefully clarified:)

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