Index: lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp =================================================================== --- lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp +++ lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp @@ -878,7 +878,7 @@ // and stubs for branches Thumb - ARM and ARM - Thumb. writeBytesUnaligned(0xe51ff004, Addr, 4); // ldr pc, [pc, #-4] return Addr + 4; - } else if (IsMipsO32ABI) { + } else if (IsMipsO32ABI || IsMipsN32ABI) { // 0: 3c190000 lui t9,%hi(addr). // 4: 27390000 addiu t9,t9,%lo(addr). // 8: 03200008 jr t9. @@ -886,13 +886,39 @@ const unsigned LuiT9Instr = 0x3c190000, AdduiT9Instr = 0x27390000; const unsigned NopInstr = 0x0; unsigned JrT9Instr = 0x03200008; - if ((AbiVariant & ELF::EF_MIPS_ARCH) == ELF::EF_MIPS_ARCH_32R6) - JrT9Instr = 0x03200009; + if ((AbiVariant & ELF::EF_MIPS_ARCH) == ELF::EF_MIPS_ARCH_32R6 || + (AbiVariant & ELF::EF_MIPS_ARCH) == ELF::EF_MIPS_ARCH_64R6) + JrT9Instr = 0x03200009; writeBytesUnaligned(LuiT9Instr, Addr, 4); - writeBytesUnaligned(AdduiT9Instr, Addr+4, 4); - writeBytesUnaligned(JrT9Instr, Addr+8, 4); - writeBytesUnaligned(NopInstr, Addr+12, 4); + writeBytesUnaligned(AdduiT9Instr, Addr + 4, 4); + writeBytesUnaligned(JrT9Instr, Addr + 8, 4); + writeBytesUnaligned(NopInstr, Addr + 12, 4); + return Addr; + } else if (IsMipsN64ABI) { + // 0: 3c190000 lui t9,%highest(addr). + // 4: 67390000 daddiu t9,t9,%higher(addr). + // 8: 0019CC38 dsll t9,t9,16. + // c: 67390000 daddiu t9,t9,%hi(addr). + // 10: 0019CC38 dsll t9,t9,16. + // 14: 67390000 daddiu t9,t9,%lo(addr). + // 18: 03200008 jr t9. + // 1c: 00000000 nop. + const unsigned LuiT9Instr = 0x3c190000, DaddiuT9Instr = 0x67390000, + DsllT9Instr = 0x19CC38; + const unsigned NopInstr = 0x0; + unsigned JrT9Instr = 0x03200008; + if ((AbiVariant & ELF::EF_MIPS_ARCH) == ELF::EF_MIPS_ARCH_64R6) + JrT9Instr = 0x03200009; + + writeBytesUnaligned(LuiT9Instr, Addr, 4); + writeBytesUnaligned(DaddiuT9Instr, Addr + 4, 4); + writeBytesUnaligned(DsllT9Instr, Addr + 8, 4); + writeBytesUnaligned(DaddiuT9Instr, Addr + 12, 4); + writeBytesUnaligned(DsllT9Instr, Addr + 16, 4); + writeBytesUnaligned(DaddiuT9Instr, Addr + 20, 4); + writeBytesUnaligned(JrT9Instr, Addr + 24, 4); + writeBytesUnaligned(NopInstr, Addr + 28, 4); return Addr; } else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le) { // Depending on which version of the ELF ABI is in use, we need to Index: lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h =================================================================== --- lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h +++ lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.h @@ -66,8 +66,10 @@ return 20; // movz; movk; movk; movk; br if (Arch == Triple::arm || Arch == Triple::thumb) return 8; // 32-bit instruction and 32-bit address - else if (IsMipsO32ABI) + else if (IsMipsO32ABI || IsMipsN32ABI) return 16; + else if (IsMipsN64ABI) + return 32; else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le) return 44; else if (Arch == Triple::x86_64) Index: lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp =================================================================== --- lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp +++ lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp @@ -1251,8 +1251,7 @@ if (Value.SymbolName) { addRelocationForSymbol(REHi, Value.SymbolName); addRelocationForSymbol(RELo, Value.SymbolName); - } - else { + } else { addRelocationForSection(REHi, Value.SectionID); addRelocationForSection(RELo, Value.SectionID); } @@ -1312,11 +1311,81 @@ RE.SymOffset = allocateGOTEntries(1); GOTSymbolOffsets[TargetName] = RE.SymOffset; } + if (Value.SymbolName) + addRelocationForSymbol(RE, Value.SymbolName); + else + addRelocationForSection(RE, Value.SectionID); + } else if (RelType == ELF::R_MIPS_26) { + // This is an Mips branch relocation, need to use a stub function. + DEBUG(dbgs() << "\t\tThis is a Mips branch relocation."); + SectionEntry &Section = Sections[SectionID]; + + // Look up for existing stub. + StubMap::const_iterator i = Stubs.find(Value); + if (i != Stubs.end()) { + RelocationEntry RE(SectionID, Offset, RelType, i->second); + addRelocationForSection(RE, SectionID); + DEBUG(dbgs() << " Stub function found\n"); + } else { + // Create a new stub function. + DEBUG(dbgs() << " Create a new stub function\n"); + Stubs[Value] = Section.getStubOffset(); + + unsigned AbiVariant; + O.getPlatformFlags(AbiVariant); + + uint8_t *StubTargetAddr = createStubFunction( + Section.getAddressWithOffset(Section.getStubOffset()), AbiVariant); + + if (IsMipsN32ABI) { + // Creating Hi and Lo relocations for the filled stub instructions. + RelocationEntry REHi(SectionID, StubTargetAddr - Section.getAddress(), + ELF::R_MIPS_HI16, Value.Addend); + RelocationEntry RELo(SectionID, + StubTargetAddr - Section.getAddress() + 4, + ELF::R_MIPS_LO16, Value.Addend); + if (Value.SymbolName) { + addRelocationForSymbol(REHi, Value.SymbolName); + addRelocationForSymbol(RELo, Value.SymbolName); + } else { + addRelocationForSection(REHi, Value.SectionID); + addRelocationForSection(RELo, Value.SectionID); + } + } else { + // Creating Highest, Higher, Hi and Lo relocations for the filled stub + // instructions. + RelocationEntry REHighest(SectionID, + StubTargetAddr - Section.getAddress(), + ELF::R_MIPS_HIGHEST, Value.Addend); + RelocationEntry REHigher(SectionID, + StubTargetAddr - Section.getAddress() + 4, + ELF::R_MIPS_HIGHER, Value.Addend); + RelocationEntry REHi(SectionID, + StubTargetAddr - Section.getAddress() + 12, + ELF::R_MIPS_HI16, Value.Addend); + RelocationEntry RELo(SectionID, + StubTargetAddr - Section.getAddress() + 20, + ELF::R_MIPS_LO16, Value.Addend); + if (Value.SymbolName) { + addRelocationForSymbol(REHighest, Value.SymbolName); + addRelocationForSymbol(REHigher, Value.SymbolName); + addRelocationForSymbol(REHi, Value.SymbolName); + addRelocationForSymbol(RELo, Value.SymbolName); + } else { + addRelocationForSection(REHighest, Value.SectionID); + addRelocationForSection(REHigher, Value.SectionID); + addRelocationForSection(REHi, Value.SectionID); + addRelocationForSection(RELo, Value.SectionID); + } + } + RelocationEntry RE(SectionID, Offset, RelType, Section.getStubOffset()); + addRelocationForSection(RE, SectionID); + Section.advanceStubOffset(getMaxStubSize()); + } + } else { + processSimpleRelocation(SectionID, Offset, RelType, Value); } - if (Value.SymbolName) - addRelocationForSymbol(RE, Value.SymbolName); - else - addRelocationForSection(RE, Value.SectionID); + } else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le) { if (RelType == ELF::R_PPC64_REL24) { // Determine ABI variant in use for this object. Index: lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldELFMips.cpp =================================================================== --- lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldELFMips.cpp +++ lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldELFMips.cpp @@ -116,6 +116,8 @@ << format("%llx", Section.getLoadAddressWithOffset(Offset)) << " Value: 0x" << format("%llx", Value) << " Type: 0x" << format("%x", Type) << " Addend: 0x" << format("%llx", Addend) + << " Offset: " << format("%x", Offset) + << " SID: " << format("%d", SectionID) << " SymOffset: " << format("%x", SymOffset) << "\n"); switch (Type) { @@ -141,6 +143,10 @@ return ((Value + Addend + 0x8000) >> 16) & 0xffff; case ELF::R_MIPS_LO16: return (Value + Addend) & 0xffff; + case ELF::R_MIPS_HIGHER: + return ((Value + Addend + 0x80008000) >> 32) & 0xffff; + case ELF::R_MIPS_HIGHEST: + return ((Value + Addend + 0x800080008000) >> 48) & 0xffff; case ELF::R_MIPS_CALL16: case ELF::R_MIPS_GOT_DISP: case ELF::R_MIPS_GOT_PAGE: { @@ -215,6 +221,8 @@ case ELF::R_MIPS_GPREL16: case ELF::R_MIPS_HI16: case ELF::R_MIPS_LO16: + case ELF::R_MIPS_HIGHER: + case ELF::R_MIPS_HIGHEST: case ELF::R_MIPS_PC16: case ELF::R_MIPS_PCHI16: case ELF::R_MIPS_PCLO16: @@ -304,7 +312,8 @@ << format("%p", Section.getLoadAddressWithOffset(Offset)) << " Value: " << format("%x", Value) << " Type: " << format("%x", Type) - << " Addend: " << format("%x", Addend) << "\n"); + << " Addend: " << format("%x", Addend) + << " SymOffset: " << format("%x", Offset) << "\n"); Value = evaluateMIPS32Relocation(Section, Offset, Value, Type); Index: test/ExecutionEngine/RuntimeDyld/Mips/ELF_Mips64r2N64_PIC_relocations.s =================================================================== --- test/ExecutionEngine/RuntimeDyld/Mips/ELF_Mips64r2N64_PIC_relocations.s +++ test/ExecutionEngine/RuntimeDyld/Mips/ELF_Mips64r2N64_PIC_relocations.s @@ -44,7 +44,7 @@ sd $4, 8($fp) # Test R_MIPS_26 relocation. -# rtdyld-check: decode_operand(insn1, 0)[27:0] = foo[27:0] +# rtdyld-check: decode_operand(insn1, 0)[27:0] = stub_addr(test_ELF_Mips64N64.o, .text, foo)[27:0] insn1: .option pic0 jal foo Index: test/ExecutionEngine/RuntimeDyld/Mips/ELF_N32_relocations.s =================================================================== --- test/ExecutionEngine/RuntimeDyld/Mips/ELF_N32_relocations.s +++ test/ExecutionEngine/RuntimeDyld/Mips/ELF_N32_relocations.s @@ -44,7 +44,7 @@ sd $4, 8($fp) # Test R_MIPS_26 relocation. -# rtdyld-check: decode_operand(insn1, 0)[27:0] = foo[27:0] +# rtdyld-check: decode_operand(insn1, 0)[27:0] = stub_addr(test_ELF_N32.o, .text, foo)[27:0] insn1: .option pic0 jal foo