<div dir="ltr">Hello all,<div><br></div><div>MSVC-style RTTI when targeting x86_64 requires creating references to symbols using image-base relative relocations (IMAGE_REL_AMD64_ADDR32 in PE/COFF, similar to ELF's R_X86_64_RELATIVE). This is currently supported at the MC layer, one may have:</div>
<div><br></div><div>.data</div><div>foo:</div><div> .quad foo@imgrel</div><div><br></div><div>This would create a symbol which points to it's own image-relative offset.</div><div><br></div><div>To my knowledge, LLVM IR gives no way to refer to the address of a symbol using a relocation and thus the above result cannot be obtained.</div>
<div><br></div><div>Seeing as how we want to support MSVC-style RTTI from clang, how should we represent image-relative relocations in the IR?</div><div><br></div><div>Thanks</div><div><br></div><div>-- </div><div>David Majnemer</div>
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