[RuntimeDyld] Implemented relocation for ELF::R_X86_64_GOTPC32

[MoritzS]

Rebased onto master

[MoritzS]

ping

[MoritzS]

Rebased onto main

[lhames]

Very belatedly approved. Thanks for this Moritz!

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp

if (RelType == ELF::R_X86_64_PLT32) {
 
       // Fill in the value of the symbol we're targeting into the GOT
       RelocationEntry RE =
           computeGOTOffsetRE(GOTOffset, Value.Offset, ELF::R_X86_64_64);
       if (Value.SymbolName)
         addRelocationForSymbol(RE, Value.SymbolName);
       else
         addRelocationForSection(RE, Value.SectionID);
-    } else if (RelType == ELF::R_X86_64_GOTPC64) {
+    } else if (RelType == ELF::R_X86_64_GOTPC32) {
       // Materialize the address of the base of the GOT relative to the PC.
       // This doesn't create a GOT entry, but it does mean we need a GOT
       // section.
       (void)allocateGOTEntries(0);
+      resolveGOTOffsetRelocation(SectionID, Offset, Addend, ELF::R_X86_64_PC32);
+    } else if (RelType == ELF::R_X86_64_GOTPC64) {
+      (void)allocateGOTEntries(0);
       resolveGOTOffsetRelocation(SectionID, Offset, Addend, ELF::R_X86_64_PC64);
     } else if (RelType == ELF::R_X86_64_GOTOFF64) {
       // GOTOFF relocations ultimately require a section difference relocation.
       (void)allocateGOTEntries(0);
       processSimpleRelocation(SectionID, Offset, RelType, Value);
     } else if (RelType == ELF::R_X86_64_PC32) {
       Value.Addend += support::ulittle32_t::ref(computePlaceholderAddress(SectionID, Offset));
       processSimpleRelocation(SectionID, Offset, RelType, Value);