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ELF/InputSection.cpp
| Show First 20 Lines • Show All 374 Lines • ▼ Show 20 Lines | case R_PPC_OPD: { | ||||
| return SymVA - P; | return SymVA - P; | ||||
| } | } | ||||
| case R_PC: | case R_PC: | ||||
| case R_RELAX_GOT_PC: | case R_RELAX_GOT_PC: | ||||
| return Body.getVA<ELFT>(A) - P; | return Body.getVA<ELFT>(A) - P; | ||||
| case R_PLT_PAGE_PC: | case R_PLT_PAGE_PC: | ||||
| case R_PAGE_PC: | case R_PAGE_PC: | ||||
| return getAArch64Page(Body.getVA<ELFT>(A)) - getAArch64Page(P); | return getAArch64Page(Body.getVA<ELFT>(A)) - getAArch64Page(P); | ||||
| case R_PPC_SDA: { | |||||
| auto CheckReturn = [](int64_t Val, uint32_t Reg) -> typename ELFT::uint { | |||||
| if (Val > 32767 || Val < -32768) | |||||
| error("Small data relocation delta exceeds 16-bit value"); | |||||
| return (Val & 0xffff) | (Reg << 16); | |||||
| }; | |||||
| const DefinedRegular<ELFT> *RelSym = dyn_cast<DefinedRegular<ELFT>>(&Body); | |||||
| if (RelSym && RelSym->Section) { | |||||
| const InputSectionBase<ELFT> *Section = RelSym->Section; | |||||
| if (Section->OutSec) { | |||||
| // Relocate relative to _SDA_BASE_ or _SDA2_BASE_ synthetic symbols. | |||||
| const OutputSectionBase<ELFT> *OutSec = RelSym->Section->OutSec; | |||||
| if (ElfSym<ELFT>::SdaBase && | |||||
| (OutSec->getName() == ".sdata" || OutSec->getName() == ".sbss")) | |||||
| return CheckReturn(Body.getVA<ELFT>(A) - | |||||
| int64_t(ElfSym<ELFT>::SdaBase->Value), 13); | |||||
| if (ElfSym<ELFT>::Sda2Base && OutSec->getName() == ".sdata2") | |||||
| return CheckReturn(Body.getVA<ELFT>(A) - | |||||
| int64_t(ElfSym<ELFT>::Sda2Base->Value), 2); | |||||
| } | |||||
| } | |||||
| error("Unable to perform small data relocation without designated section"); | |||||
| return 0; | |||||
| } | |||||
| } | } | ||||
| llvm_unreachable("Invalid expression"); | llvm_unreachable("Invalid expression"); | ||||
| } | } | ||||
| // This function applies relocations to sections without SHF_ALLOC bit. | // This function applies relocations to sections without SHF_ALLOC bit. | ||||
| // Such sections are never mapped to memory at runtime. Debug sections are | // Such sections are never mapped to memory at runtime. Debug sections are | ||||
| // an example. Relocations in non-alloc sections are much easier to | // an example. Relocations in non-alloc sections are much easier to | ||||
| // handle than in allocated sections because it will never need complex | // handle than in allocated sections because it will never need complex | ||||
| ▲ Show 20 Lines • Show All 471 Lines • Show Last 20 Lines | |||||