//===-- ARMELFWriterInfo.h - ELF Writer Info for ARM ------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file implements ELF writer information for the ARM backend. // //===----------------------------------------------------------------------===// #ifndef ARM_ELF_WRITER_INFO_H #define ARM_ELF_WRITER_INFO_H #include "llvm/Target/TargetELFWriterInfo.h" namespace llvm { class ARMELFWriterInfo : public TargetELFWriterInfo { // ELF Relocation types for ARM // Meets 2.08 ABI Specs. Most of these are not used by the assembler. // They are here for completeness's sake enum ARMRelocationType { R_ARM_NONE = 0x00, R_ARM_PC24 = 0x01, R_ARM_ABS32 = 0x02, R_ARM_REL32 = 0x03, R_ARM_LDR_PC_G0 = 0x04, R_ARM_ABS16 = 0x05, R_ARM_ABS12 = 0x06, R_ARM_THM_ABS5 = 0x07, R_ARM_ABS8 = 0x08, R_ARM_SBREL32 = 0x09, R_ARM_THM_CALL = 0x0a, R_ARM_THM_PC8 = 0x0b, R_ARM_BREL_ADJ = 0x0c, R_ARM_TLS_DESC = 0x0d, R_ARM_THM_SWI8 = 0x0e, R_ARM_XPC25 = 0x0f, R_ARM_THM_XPC22 = 0x10, R_ARM_TLS_DTPMOD32 = 0x11, R_ARM_TLS_DTPOFF32 = 0x12, R_ARM_TLS_TPOFF32 = 0x13, R_ARM_COPY = 0x14, R_ARM_GLOB_DAT = 0x15, R_ARM_JUMP_SLOT = 0x16, R_ARM_RELATIVE = 0x17, R_ARM_GOTOFF32 = 0x18, R_ARM_BASE_PREL = 0x19, R_ARM_GOT_BREL = 0x1a, R_ARM_PLT32 = 0x1b, R_ARM_CALL = 0x1c, R_ARM_JUMP24 = 0x1d, R_ARM_THM_JUMP24 = 0x1e, R_ARM_BASE_ABS = 0x1f, R_ARM_ALU_PCREL_7_0 = 0x20, R_ARM_ALU_PCREL_15_8 = 0x21, R_ARM_ALU_PCREL_23_15 = 0x22, R_ARM_LDR_SBREL_11_0_NC = 0x23, R_ARM_ALU_SBREL_19_12_NC = 0x24, R_ARM_ALU_SBREL_27_20_CK = 0x25, R_ARM_TARGET1 = 0x26, R_ARM_SBREL31 = 0x27, R_ARM_V4BX = 0x28, R_ARM_TARGET2 = 0x29, R_ARM_PREL31 = 0x2a, R_ARM_MOVW_ABS_NC = 0x2b, R_ARM_MOVT_ABS = 0x2c, R_ARM_MOVW_PREL_NC = 0x2d, R_ARM_MOVT_PREL = 0x2e, R_ARM_THM_MOVW_ABS_NC = 0x2f, R_ARM_THM_MOVT_ABS = 0x30, R_ARM_THM_MOVW_PREL_NC = 0x31, R_ARM_THM_MOVT_PREL = 0x32, R_ARM_THM_JUMP19 = 0x33, R_ARM_THM_JUMP6 = 0x34, R_ARM_THM_ALU_PREL_11_0 = 0x35, R_ARM_THM_PC12 = 0x36, R_ARM_ABS32_NOI = 0x37, R_ARM_REL32_NOI = 0x38, R_ARM_ALU_PC_G0_NC = 0x39, R_ARM_ALU_PC_G0 = 0x3a, R_ARM_ALU_PC_G1_NC = 0x3b, R_ARM_ALU_PC_G1 = 0x3c, R_ARM_ALU_PC_G2 = 0x3d, R_ARM_LDR_PC_G1 = 0x3e, R_ARM_LDR_PC_G2 = 0x3f, R_ARM_LDRS_PC_G0 = 0x40, R_ARM_LDRS_PC_G1 = 0x41, R_ARM_LDRS_PC_G2 = 0x42, R_ARM_LDC_PC_G0 = 0x43, R_ARM_LDC_PC_G1 = 0x44, R_ARM_LDC_PC_G2 = 0x45, R_ARM_ALU_SB_G0_NC = 0x46, R_ARM_ALU_SB_G0 = 0x47, R_ARM_ALU_SB_G1_NC = 0x48, R_ARM_ALU_SB_G1 = 0x49, R_ARM_ALU_SB_G2 = 0x4a, R_ARM_LDR_SB_G0 = 0x4b, R_ARM_LDR_SB_G1 = 0x4c, R_ARM_LDR_SB_G2 = 0x4d, R_ARM_LDRS_SB_G0 = 0x4e, R_ARM_LDRS_SB_G1 = 0x4f, R_ARM_LDRS_SB_G2 = 0x50, R_ARM_LDC_SB_G0 = 0x51, R_ARM_LDC_SB_G1 = 0x52, R_ARM_LDC_SB_G2 = 0x53, R_ARM_MOVW_BREL_NC = 0x54, R_ARM_MOVT_BREL = 0x55, R_ARM_MOVW_BREL = 0x56, R_ARM_THM_MOVW_BREL_NC = 0x57, R_ARM_THM_MOVT_BREL = 0x58, R_ARM_THM_MOVW_BREL = 0x59, R_ARM_TLS_GOTDESC = 0x5a, R_ARM_TLS_CALL = 0x5b, R_ARM_TLS_DESCSEQ = 0x5c, R_ARM_THM_TLS_CALL = 0x5d, R_ARM_PLT32_ABS = 0x5e, R_ARM_GOT_ABS = 0x5f, R_ARM_GOT_PREL = 0x60, R_ARM_GOT_BREL12 = 0x61, R_ARM_GOTOFF12 = 0x62, R_ARM_GOTRELAX = 0x63, R_ARM_GNU_VTENTRY = 0x64, R_ARM_GNU_VTINHERIT = 0x65, R_ARM_THM_JUMP11 = 0x66, R_ARM_THM_JUMP8 = 0x67, R_ARM_TLS_GD32 = 0x68, R_ARM_TLS_LDM32 = 0x69, R_ARM_TLS_LDO32 = 0x6a, R_ARM_TLS_IE32 = 0x6b, R_ARM_TLS_LE32 = 0x6c, R_ARM_TLS_LDO12 = 0x6d, R_ARM_TLS_LE12 = 0x6e, R_ARM_TLS_IE12GP = 0x6f, R_ARM_PRIVATE_0 = 0x70, R_ARM_PRIVATE_1 = 0x71, R_ARM_PRIVATE_2 = 0x72, R_ARM_PRIVATE_3 = 0x73, R_ARM_PRIVATE_4 = 0x74, R_ARM_PRIVATE_5 = 0x75, R_ARM_PRIVATE_6 = 0x76, R_ARM_PRIVATE_7 = 0x77, R_ARM_PRIVATE_8 = 0x78, R_ARM_PRIVATE_9 = 0x79, R_ARM_PRIVATE_10 = 0x7a, R_ARM_PRIVATE_11 = 0x7b, R_ARM_PRIVATE_12 = 0x7c, R_ARM_PRIVATE_13 = 0x7d, R_ARM_PRIVATE_14 = 0x7e, R_ARM_PRIVATE_15 = 0x7f, R_ARM_ME_TOO = 0x80, R_ARM_THM_TLS_DESCSEQ16 = 0x81, R_ARM_THM_TLS_DESCSEQ32 = 0x82 }; public: ARMELFWriterInfo(TargetMachine &TM); virtual ~ARMELFWriterInfo(); /// getRelocationType - Returns the target specific ELF Relocation type. /// 'MachineRelTy' contains the object code independent relocation type virtual unsigned getRelocationType(unsigned MachineRelTy) const; /// hasRelocationAddend - True if the target uses an addend in the /// ELF relocation entry. virtual bool hasRelocationAddend() const { return false; } /// getDefaultAddendForRelTy - Gets the default addend value for a /// relocation entry based on the target ELF relocation type. virtual long int getDefaultAddendForRelTy(unsigned RelTy, long int Modifier = 0) const; /// getRelTySize - Returns the size of relocatable field in bits virtual unsigned getRelocationTySize(unsigned RelTy) const; /// isPCRelativeRel - True if the relocation type is pc relative virtual bool isPCRelativeRel(unsigned RelTy) const; /// getJumpTableRelocationTy - Returns the machine relocation type used /// to reference a jumptable. virtual unsigned getAbsoluteLabelMachineRelTy() const; /// computeRelocation - Some relocatable fields could be relocated /// directly, avoiding the relocation symbol emission, compute the /// final relocation value for this symbol. virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset, unsigned RelTy) const; }; } // end llvm namespace #endif // ARM_ELF_WRITER_INFO_H