[LoongArch64] Fix ld.lld relocation 'R_LARCH_PCALA_LO12' error when building NativeAOT testcases.

[LuckyXu-HF]

Fix the build error of the NativeAOT smoke tests which is mentioned in #104661 (comment)

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[LuckyXu-HF]

This commit fixed the building of NAOT smoke tests which is mentioned in #104661 (comment) :

Another issue is, while compiling smoke tests SharedLibrary, it will report errors like
ld.lld : error : relocation R_LARCH_PCALA_LO12 cannot be used against symbol 'memmove'; recompile with -fPIC [runtime/src/tests/nativeaot/SmokeTests/SharedLibrary/SharedLibrary.csproj] [runtime/src/tests/build.proj].

The ld.bfd should report errors when linking illegal symbol, but it doesn't, we have reported this to the LD team.
And the ld.lld behavior of reporting errors is what we expect.

[LuckyXu-HF]

Hi @shushanhf @jakobbotsch , could you please review this PR? Thanks.

[am11]

Nice!

The ld.bfd should report errors when linking illegal symbol, but it doesn't, we have reported this to the LD team.

My takeaway from reading a few posts on https://maskray.me/blog/, there's no perfect linker; it's a balance between best effort to unblock people and nitpicking on what constitutes illegal. So it pays to collect diagnostics from both lld and bfd (and if feasible, gold and mold too) and aim to make all of them happy. 😅

[shushanhf]

LGTM
Thanks

[LuckyXu-HF]

Hi @jakobbotsch @jkotas could you please help to review this PR? Thanks.

[jkotas]

/ba-g DeadLetter