| // Copyright 2015 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // Package arch defines architecture-specific information and support functions. |
| package arch |
| |
| import ( |
| "cmd/internal/obj" |
| "cmd/internal/obj/arm" |
| "cmd/internal/obj/arm64" |
| "cmd/internal/obj/mips" |
| "cmd/internal/obj/ppc64" |
| "cmd/internal/obj/riscv" |
| "cmd/internal/obj/s390x" |
| "cmd/internal/obj/wasm" |
| "cmd/internal/obj/x86" |
| "fmt" |
| "strings" |
| ) |
| |
| // Pseudo-registers whose names are the constant name without the leading R. |
| const ( |
| RFP = -(iota + 1) |
| RSB |
| RSP |
| RPC |
| ) |
| |
| // Arch wraps the link architecture object with more architecture-specific information. |
| type Arch struct { |
| *obj.LinkArch |
| // Map of instruction names to enumeration. |
| Instructions map[string]obj.As |
| // Map of register names to enumeration. |
| Register map[string]int16 |
| // Table of register prefix names. These are things like R for R(0) and SPR for SPR(268). |
| RegisterPrefix map[string]bool |
| // RegisterNumber converts R(10) into arm.REG_R10. |
| RegisterNumber func(string, int16) (int16, bool) |
| // Instruction is a jump. |
| IsJump func(word string) bool |
| } |
| |
| // nilRegisterNumber is the register number function for architectures |
| // that do not accept the R(N) notation. It always returns failure. |
| func nilRegisterNumber(name string, n int16) (int16, bool) { |
| return 0, false |
| } |
| |
| // Set configures the architecture specified by GOARCH and returns its representation. |
| // It returns nil if GOARCH is not recognized. |
| func Set(GOARCH string) *Arch { |
| switch GOARCH { |
| case "386": |
| return archX86(&x86.Link386) |
| case "amd64": |
| return archX86(&x86.Linkamd64) |
| case "arm": |
| return archArm() |
| case "arm64": |
| return archArm64() |
| case "mips": |
| return archMips(&mips.Linkmips) |
| case "mipsle": |
| return archMips(&mips.Linkmipsle) |
| case "mips64": |
| return archMips64(&mips.Linkmips64) |
| case "mips64le": |
| return archMips64(&mips.Linkmips64le) |
| case "ppc64": |
| return archPPC64(&ppc64.Linkppc64) |
| case "ppc64le": |
| return archPPC64(&ppc64.Linkppc64le) |
| case "riscv64": |
| return archRISCV64() |
| case "s390x": |
| return archS390x() |
| case "wasm": |
| return archWasm() |
| } |
| return nil |
| } |
| |
| func jumpX86(word string) bool { |
| return word[0] == 'J' || word == "CALL" || strings.HasPrefix(word, "LOOP") || word == "XBEGIN" |
| } |
| |
| func jumpRISCV(word string) bool { |
| switch word { |
| case "BEQ", "BEQZ", "BGE", "BGEU", "BGEZ", "BGT", "BGTU", "BGTZ", "BLE", "BLEU", "BLEZ", |
| "BLT", "BLTU", "BLTZ", "BNE", "BNEZ", "CALL", "JAL", "JALR", "JMP": |
| return true |
| } |
| return false |
| } |
| |
| func jumpWasm(word string) bool { |
| return word == "JMP" || word == "CALL" || word == "Call" || word == "Br" || word == "BrIf" |
| } |
| |
| func archX86(linkArch *obj.LinkArch) *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| for i, s := range x86.Register { |
| register[s] = int16(i + x86.REG_AL) |
| } |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| if linkArch == &x86.Linkamd64 { |
| // Alias g to R14 |
| register["g"] = x86.REGG |
| } |
| // Register prefix not used on this architecture. |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range x86.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseAMD64 |
| } |
| } |
| // Annoying aliases. |
| instructions["JA"] = x86.AJHI /* alternate */ |
| instructions["JAE"] = x86.AJCC /* alternate */ |
| instructions["JB"] = x86.AJCS /* alternate */ |
| instructions["JBE"] = x86.AJLS /* alternate */ |
| instructions["JC"] = x86.AJCS /* alternate */ |
| instructions["JCC"] = x86.AJCC /* carry clear (CF = 0) */ |
| instructions["JCS"] = x86.AJCS /* carry set (CF = 1) */ |
| instructions["JE"] = x86.AJEQ /* alternate */ |
| instructions["JEQ"] = x86.AJEQ /* equal (ZF = 1) */ |
| instructions["JG"] = x86.AJGT /* alternate */ |
| instructions["JGE"] = x86.AJGE /* greater than or equal (signed) (SF = OF) */ |
| instructions["JGT"] = x86.AJGT /* greater than (signed) (ZF = 0 && SF = OF) */ |
| instructions["JHI"] = x86.AJHI /* higher (unsigned) (CF = 0 && ZF = 0) */ |
| instructions["JHS"] = x86.AJCC /* alternate */ |
| instructions["JL"] = x86.AJLT /* alternate */ |
| instructions["JLE"] = x86.AJLE /* less than or equal (signed) (ZF = 1 || SF != OF) */ |
| instructions["JLO"] = x86.AJCS /* alternate */ |
| instructions["JLS"] = x86.AJLS /* lower or same (unsigned) (CF = 1 || ZF = 1) */ |
| instructions["JLT"] = x86.AJLT /* less than (signed) (SF != OF) */ |
| instructions["JMI"] = x86.AJMI /* negative (minus) (SF = 1) */ |
| instructions["JNA"] = x86.AJLS /* alternate */ |
| instructions["JNAE"] = x86.AJCS /* alternate */ |
| instructions["JNB"] = x86.AJCC /* alternate */ |
| instructions["JNBE"] = x86.AJHI /* alternate */ |
| instructions["JNC"] = x86.AJCC /* alternate */ |
| instructions["JNE"] = x86.AJNE /* not equal (ZF = 0) */ |
| instructions["JNG"] = x86.AJLE /* alternate */ |
| instructions["JNGE"] = x86.AJLT /* alternate */ |
| instructions["JNL"] = x86.AJGE /* alternate */ |
| instructions["JNLE"] = x86.AJGT /* alternate */ |
| instructions["JNO"] = x86.AJOC /* alternate */ |
| instructions["JNP"] = x86.AJPC /* alternate */ |
| instructions["JNS"] = x86.AJPL /* alternate */ |
| instructions["JNZ"] = x86.AJNE /* alternate */ |
| instructions["JO"] = x86.AJOS /* alternate */ |
| instructions["JOC"] = x86.AJOC /* overflow clear (OF = 0) */ |
| instructions["JOS"] = x86.AJOS /* overflow set (OF = 1) */ |
| instructions["JP"] = x86.AJPS /* alternate */ |
| instructions["JPC"] = x86.AJPC /* parity clear (PF = 0) */ |
| instructions["JPE"] = x86.AJPS /* alternate */ |
| instructions["JPL"] = x86.AJPL /* non-negative (plus) (SF = 0) */ |
| instructions["JPO"] = x86.AJPC /* alternate */ |
| instructions["JPS"] = x86.AJPS /* parity set (PF = 1) */ |
| instructions["JS"] = x86.AJMI /* alternate */ |
| instructions["JZ"] = x86.AJEQ /* alternate */ |
| instructions["MASKMOVDQU"] = x86.AMASKMOVOU |
| instructions["MOVD"] = x86.AMOVQ |
| instructions["MOVDQ2Q"] = x86.AMOVQ |
| instructions["MOVNTDQ"] = x86.AMOVNTO |
| instructions["MOVOA"] = x86.AMOVO |
| instructions["PSLLDQ"] = x86.APSLLO |
| instructions["PSRLDQ"] = x86.APSRLO |
| instructions["PADDD"] = x86.APADDL |
| // Spellings originally used in CL 97235. |
| instructions["MOVBELL"] = x86.AMOVBEL |
| instructions["MOVBEQQ"] = x86.AMOVBEQ |
| instructions["MOVBEWW"] = x86.AMOVBEW |
| |
| return &Arch{ |
| LinkArch: linkArch, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: nil, |
| RegisterNumber: nilRegisterNumber, |
| IsJump: jumpX86, |
| } |
| } |
| |
| func archArm() *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for x86. |
| for i := arm.REG_R0; i < arm.REG_SPSR; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| // Avoid unintentionally clobbering g using R10. |
| delete(register, "R10") |
| register["g"] = arm.REG_R10 |
| for i := 0; i < 16; i++ { |
| register[fmt.Sprintf("C%d", i)] = int16(i) |
| } |
| |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| register["SP"] = RSP |
| registerPrefix := map[string]bool{ |
| "F": true, |
| "R": true, |
| } |
| |
| // special operands for DMB/DSB instructions |
| register["MB_SY"] = arm.REG_MB_SY |
| register["MB_ST"] = arm.REG_MB_ST |
| register["MB_ISH"] = arm.REG_MB_ISH |
| register["MB_ISHST"] = arm.REG_MB_ISHST |
| register["MB_NSH"] = arm.REG_MB_NSH |
| register["MB_NSHST"] = arm.REG_MB_NSHST |
| register["MB_OSH"] = arm.REG_MB_OSH |
| register["MB_OSHST"] = arm.REG_MB_OSHST |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range arm.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseARM |
| } |
| } |
| // Annoying aliases. |
| instructions["B"] = obj.AJMP |
| instructions["BL"] = obj.ACALL |
| // MCR differs from MRC by the way fields of the word are encoded. |
| // (Details in arm.go). Here we add the instruction so parse will find |
| // it, but give it an opcode number known only to us. |
| instructions["MCR"] = aMCR |
| |
| return &Arch{ |
| LinkArch: &arm.Linkarm, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: armRegisterNumber, |
| IsJump: jumpArm, |
| } |
| } |
| |
| func archArm64() *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for 386 and amd64. |
| register[obj.Rconv(arm64.REGSP)] = int16(arm64.REGSP) |
| for i := arm64.REG_R0; i <= arm64.REG_R31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| // Rename R18 to R18_PLATFORM to avoid accidental use. |
| register["R18_PLATFORM"] = register["R18"] |
| delete(register, "R18") |
| for i := arm64.REG_F0; i <= arm64.REG_F31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := arm64.REG_V0; i <= arm64.REG_V31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| |
| // System registers. |
| for i := 0; i < len(arm64.SystemReg); i++ { |
| register[arm64.SystemReg[i].Name] = arm64.SystemReg[i].Reg |
| } |
| |
| register["LR"] = arm64.REGLINK |
| register["DAIFSet"] = arm64.REG_DAIFSet |
| register["DAIFClr"] = arm64.REG_DAIFClr |
| register["PLDL1KEEP"] = arm64.REG_PLDL1KEEP |
| register["PLDL1STRM"] = arm64.REG_PLDL1STRM |
| register["PLDL2KEEP"] = arm64.REG_PLDL2KEEP |
| register["PLDL2STRM"] = arm64.REG_PLDL2STRM |
| register["PLDL3KEEP"] = arm64.REG_PLDL3KEEP |
| register["PLDL3STRM"] = arm64.REG_PLDL3STRM |
| register["PLIL1KEEP"] = arm64.REG_PLIL1KEEP |
| register["PLIL1STRM"] = arm64.REG_PLIL1STRM |
| register["PLIL2KEEP"] = arm64.REG_PLIL2KEEP |
| register["PLIL2STRM"] = arm64.REG_PLIL2STRM |
| register["PLIL3KEEP"] = arm64.REG_PLIL3KEEP |
| register["PLIL3STRM"] = arm64.REG_PLIL3STRM |
| register["PSTL1KEEP"] = arm64.REG_PSTL1KEEP |
| register["PSTL1STRM"] = arm64.REG_PSTL1STRM |
| register["PSTL2KEEP"] = arm64.REG_PSTL2KEEP |
| register["PSTL2STRM"] = arm64.REG_PSTL2STRM |
| register["PSTL3KEEP"] = arm64.REG_PSTL3KEEP |
| register["PSTL3STRM"] = arm64.REG_PSTL3STRM |
| |
| // Conditional operators, like EQ, NE, etc. |
| register["EQ"] = arm64.COND_EQ |
| register["NE"] = arm64.COND_NE |
| register["HS"] = arm64.COND_HS |
| register["CS"] = arm64.COND_HS |
| register["LO"] = arm64.COND_LO |
| register["CC"] = arm64.COND_LO |
| register["MI"] = arm64.COND_MI |
| register["PL"] = arm64.COND_PL |
| register["VS"] = arm64.COND_VS |
| register["VC"] = arm64.COND_VC |
| register["HI"] = arm64.COND_HI |
| register["LS"] = arm64.COND_LS |
| register["GE"] = arm64.COND_GE |
| register["LT"] = arm64.COND_LT |
| register["GT"] = arm64.COND_GT |
| register["LE"] = arm64.COND_LE |
| register["AL"] = arm64.COND_AL |
| register["NV"] = arm64.COND_NV |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| register["SP"] = RSP |
| // Avoid unintentionally clobbering g using R28. |
| delete(register, "R28") |
| register["g"] = arm64.REG_R28 |
| registerPrefix := map[string]bool{ |
| "F": true, |
| "R": true, |
| "V": true, |
| } |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range arm64.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseARM64 |
| } |
| } |
| // Annoying aliases. |
| instructions["B"] = arm64.AB |
| instructions["BL"] = arm64.ABL |
| |
| return &Arch{ |
| LinkArch: &arm64.Linkarm64, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: arm64RegisterNumber, |
| IsJump: jumpArm64, |
| } |
| |
| } |
| |
| func archPPC64(linkArch *obj.LinkArch) *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for x86. |
| for i := ppc64.REG_R0; i <= ppc64.REG_R31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_F0; i <= ppc64.REG_F31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_V0; i <= ppc64.REG_V31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_VS0; i <= ppc64.REG_VS63; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_CR0; i <= ppc64.REG_CR7; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_MSR; i <= ppc64.REG_CR; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := ppc64.REG_CR0LT; i <= ppc64.REG_CR7SO; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| register["CR"] = ppc64.REG_CR |
| register["XER"] = ppc64.REG_XER |
| register["LR"] = ppc64.REG_LR |
| register["CTR"] = ppc64.REG_CTR |
| register["FPSCR"] = ppc64.REG_FPSCR |
| register["MSR"] = ppc64.REG_MSR |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| // Avoid unintentionally clobbering g using R30. |
| delete(register, "R30") |
| register["g"] = ppc64.REG_R30 |
| registerPrefix := map[string]bool{ |
| "CR": true, |
| "F": true, |
| "R": true, |
| "SPR": true, |
| } |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range ppc64.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABasePPC64 |
| } |
| } |
| // Annoying aliases. |
| instructions["BR"] = ppc64.ABR |
| instructions["BL"] = ppc64.ABL |
| |
| return &Arch{ |
| LinkArch: linkArch, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: ppc64RegisterNumber, |
| IsJump: jumpPPC64, |
| } |
| } |
| |
| func archMips(linkArch *obj.LinkArch) *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for x86. |
| for i := mips.REG_R0; i <= mips.REG_R31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| |
| for i := mips.REG_F0; i <= mips.REG_F31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_M0; i <= mips.REG_M31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_FCR0; i <= mips.REG_FCR31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| register["HI"] = mips.REG_HI |
| register["LO"] = mips.REG_LO |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| // Avoid unintentionally clobbering g using R30. |
| delete(register, "R30") |
| register["g"] = mips.REG_R30 |
| |
| registerPrefix := map[string]bool{ |
| "F": true, |
| "FCR": true, |
| "M": true, |
| "R": true, |
| } |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range mips.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseMIPS |
| } |
| } |
| // Annoying alias. |
| instructions["JAL"] = mips.AJAL |
| |
| return &Arch{ |
| LinkArch: linkArch, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: mipsRegisterNumber, |
| IsJump: jumpMIPS, |
| } |
| } |
| |
| func archMips64(linkArch *obj.LinkArch) *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for x86. |
| for i := mips.REG_R0; i <= mips.REG_R31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_F0; i <= mips.REG_F31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_M0; i <= mips.REG_M31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_FCR0; i <= mips.REG_FCR31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := mips.REG_W0; i <= mips.REG_W31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| register["HI"] = mips.REG_HI |
| register["LO"] = mips.REG_LO |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| // Avoid unintentionally clobbering g using R30. |
| delete(register, "R30") |
| register["g"] = mips.REG_R30 |
| // Avoid unintentionally clobbering RSB using R28. |
| delete(register, "R28") |
| register["RSB"] = mips.REG_R28 |
| registerPrefix := map[string]bool{ |
| "F": true, |
| "FCR": true, |
| "M": true, |
| "R": true, |
| "W": true, |
| } |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range mips.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseMIPS |
| } |
| } |
| // Annoying alias. |
| instructions["JAL"] = mips.AJAL |
| |
| return &Arch{ |
| LinkArch: linkArch, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: mipsRegisterNumber, |
| IsJump: jumpMIPS, |
| } |
| } |
| |
| func archRISCV64() *Arch { |
| register := make(map[string]int16) |
| |
| // Standard register names. |
| for i := riscv.REG_X0; i <= riscv.REG_X31; i++ { |
| if i == riscv.REG_G { |
| continue |
| } |
| name := fmt.Sprintf("X%d", i-riscv.REG_X0) |
| register[name] = int16(i) |
| } |
| for i := riscv.REG_F0; i <= riscv.REG_F31; i++ { |
| name := fmt.Sprintf("F%d", i-riscv.REG_F0) |
| register[name] = int16(i) |
| } |
| |
| // General registers with ABI names. |
| register["ZERO"] = riscv.REG_ZERO |
| register["RA"] = riscv.REG_RA |
| register["SP"] = riscv.REG_SP |
| register["GP"] = riscv.REG_GP |
| register["TP"] = riscv.REG_TP |
| register["T0"] = riscv.REG_T0 |
| register["T1"] = riscv.REG_T1 |
| register["T2"] = riscv.REG_T2 |
| register["S0"] = riscv.REG_S0 |
| register["S1"] = riscv.REG_S1 |
| register["A0"] = riscv.REG_A0 |
| register["A1"] = riscv.REG_A1 |
| register["A2"] = riscv.REG_A2 |
| register["A3"] = riscv.REG_A3 |
| register["A4"] = riscv.REG_A4 |
| register["A5"] = riscv.REG_A5 |
| register["A6"] = riscv.REG_A6 |
| register["A7"] = riscv.REG_A7 |
| register["S2"] = riscv.REG_S2 |
| register["S3"] = riscv.REG_S3 |
| register["S4"] = riscv.REG_S4 |
| register["S5"] = riscv.REG_S5 |
| register["S6"] = riscv.REG_S6 |
| register["S7"] = riscv.REG_S7 |
| register["S8"] = riscv.REG_S8 |
| register["S9"] = riscv.REG_S9 |
| register["S10"] = riscv.REG_S10 |
| // Skip S11 as it is the g register. |
| register["T3"] = riscv.REG_T3 |
| register["T4"] = riscv.REG_T4 |
| register["T5"] = riscv.REG_T5 |
| register["T6"] = riscv.REG_T6 |
| |
| // Go runtime register names. |
| register["g"] = riscv.REG_G |
| register["CTXT"] = riscv.REG_CTXT |
| register["TMP"] = riscv.REG_TMP |
| |
| // ABI names for floating point register. |
| register["FT0"] = riscv.REG_FT0 |
| register["FT1"] = riscv.REG_FT1 |
| register["FT2"] = riscv.REG_FT2 |
| register["FT3"] = riscv.REG_FT3 |
| register["FT4"] = riscv.REG_FT4 |
| register["FT5"] = riscv.REG_FT5 |
| register["FT6"] = riscv.REG_FT6 |
| register["FT7"] = riscv.REG_FT7 |
| register["FS0"] = riscv.REG_FS0 |
| register["FS1"] = riscv.REG_FS1 |
| register["FA0"] = riscv.REG_FA0 |
| register["FA1"] = riscv.REG_FA1 |
| register["FA2"] = riscv.REG_FA2 |
| register["FA3"] = riscv.REG_FA3 |
| register["FA4"] = riscv.REG_FA4 |
| register["FA5"] = riscv.REG_FA5 |
| register["FA6"] = riscv.REG_FA6 |
| register["FA7"] = riscv.REG_FA7 |
| register["FS2"] = riscv.REG_FS2 |
| register["FS3"] = riscv.REG_FS3 |
| register["FS4"] = riscv.REG_FS4 |
| register["FS5"] = riscv.REG_FS5 |
| register["FS6"] = riscv.REG_FS6 |
| register["FS7"] = riscv.REG_FS7 |
| register["FS8"] = riscv.REG_FS8 |
| register["FS9"] = riscv.REG_FS9 |
| register["FS10"] = riscv.REG_FS10 |
| register["FS11"] = riscv.REG_FS11 |
| register["FT8"] = riscv.REG_FT8 |
| register["FT9"] = riscv.REG_FT9 |
| register["FT10"] = riscv.REG_FT10 |
| register["FT11"] = riscv.REG_FT11 |
| |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range riscv.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseRISCV |
| } |
| } |
| |
| return &Arch{ |
| LinkArch: &riscv.LinkRISCV64, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: nil, |
| RegisterNumber: nilRegisterNumber, |
| IsJump: jumpRISCV, |
| } |
| } |
| |
| func archS390x() *Arch { |
| register := make(map[string]int16) |
| // Create maps for easy lookup of instruction names etc. |
| // Note that there is no list of names as there is for x86. |
| for i := s390x.REG_R0; i <= s390x.REG_R15; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := s390x.REG_F0; i <= s390x.REG_F15; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := s390x.REG_V0; i <= s390x.REG_V31; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| for i := s390x.REG_AR0; i <= s390x.REG_AR15; i++ { |
| register[obj.Rconv(i)] = int16(i) |
| } |
| register["LR"] = s390x.REG_LR |
| // Pseudo-registers. |
| register["SB"] = RSB |
| register["FP"] = RFP |
| register["PC"] = RPC |
| // Avoid unintentionally clobbering g using R13. |
| delete(register, "R13") |
| register["g"] = s390x.REG_R13 |
| registerPrefix := map[string]bool{ |
| "AR": true, |
| "F": true, |
| "R": true, |
| } |
| |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range s390x.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseS390X |
| } |
| } |
| // Annoying aliases. |
| instructions["BR"] = s390x.ABR |
| instructions["BL"] = s390x.ABL |
| |
| return &Arch{ |
| LinkArch: &s390x.Links390x, |
| Instructions: instructions, |
| Register: register, |
| RegisterPrefix: registerPrefix, |
| RegisterNumber: s390xRegisterNumber, |
| IsJump: jumpS390x, |
| } |
| } |
| |
| func archWasm() *Arch { |
| instructions := make(map[string]obj.As) |
| for i, s := range obj.Anames { |
| instructions[s] = obj.As(i) |
| } |
| for i, s := range wasm.Anames { |
| if obj.As(i) >= obj.A_ARCHSPECIFIC { |
| instructions[s] = obj.As(i) + obj.ABaseWasm |
| } |
| } |
| |
| return &Arch{ |
| LinkArch: &wasm.Linkwasm, |
| Instructions: instructions, |
| Register: wasm.Register, |
| RegisterPrefix: nil, |
| RegisterNumber: nilRegisterNumber, |
| IsJump: jumpWasm, |
| } |
| } |
