diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp | 32 | ||||
| -rw-r--r-- | llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h | 3 | ||||
| -rw-r--r-- | llvm/lib/MC/MCObjectFileInfo.cpp | 4 |
3 files changed, 39 insertions, 0 deletions
diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp index f780137d087..50f63fb8dd3 100644 --- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp +++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp @@ -819,6 +819,34 @@ void RuntimeDyldELF::resolveSystemZRelocation(const SectionEntry &Section, } } +void RuntimeDyldELF::resolveBPFRelocation(const SectionEntry &Section, + uint64_t Offset, uint64_t Value, + uint32_t Type, int64_t Addend) { + bool isBE = Arch == Triple::bpfeb; + + switch (Type) { + default: + llvm_unreachable("Relocation type not implemented yet!"); + break; + case ELF::R_BPF_NONE: + break; + case ELF::R_BPF_64_64: { + write(isBE, Section.getAddressWithOffset(Offset), Value + Addend); + DEBUG(dbgs() << "Writing " << format("%p", (Value + Addend)) << " at " + << format("%p\n", Section.getAddressWithOffset(Offset))); + break; + } + case ELF::R_BPF_64_32: { + Value += Addend; + assert(Value <= UINT32_MAX); + write(isBE, Section.getAddressWithOffset(Offset), static_cast<uint32_t>(Value)); + DEBUG(dbgs() << "Writing " << format("%p", Value) << " at " + << format("%p\n", Section.getAddressWithOffset(Offset))); + break; + } + } +} + // The target location for the relocation is described by RE.SectionID and // RE.Offset. RE.SectionID can be used to find the SectionEntry. Each // SectionEntry has three members describing its location. @@ -879,6 +907,10 @@ void RuntimeDyldELF::resolveRelocation(const SectionEntry &Section, case Triple::systemz: resolveSystemZRelocation(Section, Offset, Value, Type, Addend); break; + case Triple::bpfel: + case Triple::bpfeb: + resolveBPFRelocation(Section, Offset, Value, Type, Addend); + break; default: llvm_unreachable("Unsupported CPU type!"); } diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h index 498979705b7..84dd810101f 100644 --- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h +++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h @@ -58,6 +58,9 @@ class RuntimeDyldELF : public RuntimeDyldImpl { void resolveSystemZRelocation(const SectionEntry &Section, uint64_t Offset, uint64_t Value, uint32_t Type, int64_t Addend); + void resolveBPFRelocation(const SectionEntry &Section, uint64_t Offset, + uint64_t Value, uint32_t Type, int64_t Addend); + unsigned getMaxStubSize() override { if (Arch == Triple::aarch64 || Arch == Triple::aarch64_be) return 20; // movz; movk; movk; movk; br diff --git a/llvm/lib/MC/MCObjectFileInfo.cpp b/llvm/lib/MC/MCObjectFileInfo.cpp index 9f94264684f..b685790910d 100644 --- a/llvm/lib/MC/MCObjectFileInfo.cpp +++ b/llvm/lib/MC/MCObjectFileInfo.cpp @@ -286,6 +286,10 @@ void MCObjectFileInfo::initELFMCObjectFileInfo(const Triple &T) { ((CMModel == CodeModel::Large) ? dwarf::DW_EH_PE_sdata8 : dwarf::DW_EH_PE_sdata4); break; + case Triple::bpfel: + case Triple::bpfeb: + FDECFIEncoding = dwarf::DW_EH_PE_sdata8; + break; default: FDECFIEncoding = dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4; break; |
