/* AArch64 assembler/disassembler support. Copyright (C) 2009-2019 Free Software Foundation, Inc. Contributed by ARM Ltd. This file is part of GNU Binutils. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the license, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; see the file COPYING3. If not, see . */ #ifndef OPCODE_AARCH64_H #define OPCODE_AARCH64_H #include "bfd.h" #include "bfd_stdint.h" #include #include #ifdef __cplusplus extern "C" { #endif /* The offset for pc-relative addressing is currently defined to be 0. */ #define AARCH64_PCREL_OFFSET 0 typedef uint32_t aarch64_insn; /* The following bitmasks control CPU features. */ #define AARCH64_FEATURE_SHA2 0x200000000ULL /* SHA2 instructions. */ #define AARCH64_FEATURE_AES 0x800000000ULL /* AES instructions. */ #define AARCH64_FEATURE_V8_4 0x000000800ULL /* ARMv8.4 processors. */ #define AARCH64_FEATURE_SM4 0x100000000ULL /* SM3 & SM4 instructions. */ #define AARCH64_FEATURE_SHA3 0x400000000ULL /* SHA3 instructions. */ #define AARCH64_FEATURE_V8 0x00000001 /* All processors. */ #define AARCH64_FEATURE_V8_2 0x00000020 /* ARMv8.2 processors. */ #define AARCH64_FEATURE_V8_3 0x00000040 /* ARMv8.3 processors. */ #define AARCH64_FEATURE_CRYPTO 0x00010000 /* Crypto instructions. */ #define AARCH64_FEATURE_FP 0x00020000 /* FP instructions. */ #define AARCH64_FEATURE_SIMD 0x00040000 /* SIMD instructions. */ #define AARCH64_FEATURE_CRC 0x00080000 /* CRC instructions. */ #define AARCH64_FEATURE_LSE 0x00100000 /* LSE instructions. */ #define AARCH64_FEATURE_PAN 0x00200000 /* PAN instructions. */ #define AARCH64_FEATURE_LOR 0x00400000 /* LOR instructions. */ #define AARCH64_FEATURE_RDMA 0x00800000 /* v8.1 SIMD instructions. */ #define AARCH64_FEATURE_V8_1 0x01000000 /* v8.1 features. */ #define AARCH64_FEATURE_F16 0x02000000 /* v8.2 FP16 instructions. */ #define AARCH64_FEATURE_RAS 0x04000000 /* RAS Extensions. */ #define AARCH64_FEATURE_PROFILE 0x08000000 /* Statistical Profiling. */ #define AARCH64_FEATURE_SVE 0x10000000 /* SVE instructions. */ #define AARCH64_FEATURE_RCPC 0x20000000 /* RCPC instructions. */ #define AARCH64_FEATURE_COMPNUM 0x40000000 /* Complex # instructions. */ #define AARCH64_FEATURE_DOTPROD 0x080000000 /* Dot Product instructions. */ #define AARCH64_FEATURE_F16_FML 0x1000000000ULL /* v8.2 FP16FML ins. */ #define AARCH64_FEATURE_V8_5 0x2000000000ULL /* ARMv8.5 processors. */ #define AARCH64_FEATURE_V8_6 0x00000002 /* ARMv8.6 processors. */ #define AARCH64_FEATURE_BFLOAT16 0x00000004 /* Bfloat16 insns. */ /* Flag Manipulation insns. */ #define AARCH64_FEATURE_FLAGMANIP 0x4000000000ULL /* FRINT[32,64][Z,X] insns. */ #define AARCH64_FEATURE_FRINTTS 0x8000000000ULL /* SB instruction. */ #define AARCH64_FEATURE_SB 0x10000000000ULL /* Execution and Data Prediction Restriction instructions. */ #define AARCH64_FEATURE_PREDRES 0x20000000000ULL /* DC CVADP. */ #define AARCH64_FEATURE_CVADP 0x40000000000ULL /* Random Number instructions. */ #define AARCH64_FEATURE_RNG 0x80000000000ULL /* BTI instructions. */ #define AARCH64_FEATURE_BTI 0x100000000000ULL /* SCXTNUM_ELx. */ #define AARCH64_FEATURE_SCXTNUM 0x200000000000ULL /* ID_PFR2 instructions. */ #define AARCH64_FEATURE_ID_PFR2 0x400000000000ULL /* SSBS mechanism enabled. */ #define AARCH64_FEATURE_SSBS 0x800000000000ULL /* Memory Tagging Extension. */ #define AARCH64_FEATURE_MEMTAG 0x1000000000000ULL /* Transactional Memory Extension. */ #define AARCH64_FEATURE_TME 0x2000000000000ULL /* Matrix Multiply instructions */ #define AARCH64_FEATURE_I8MM 0x10000000000000ULL #define AARCH64_FEATURE_F32MM 0x20000000000000ULL #define AARCH64_FEATURE_F64MM 0x40000000000000ULL /* SVE2 instructions. */ #define AARCH64_FEATURE_SVE2 0x000000010 #define AARCH64_FEATURE_SVE2_AES 0x000000080 #define AARCH64_FEATURE_SVE2_BITPERM 0x000000100 #define AARCH64_FEATURE_SVE2_SM4 0x000000200 #define AARCH64_FEATURE_SVE2_SHA3 0x000000400 /* Architectures are the sum of the base and extensions. */ #define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \ AARCH64_FEATURE_FP \ | AARCH64_FEATURE_SIMD) #define AARCH64_ARCH_V8_1 AARCH64_FEATURE (AARCH64_ARCH_V8, \ AARCH64_FEATURE_CRC \ | AARCH64_FEATURE_V8_1 \ | AARCH64_FEATURE_LSE \ | AARCH64_FEATURE_PAN \ | AARCH64_FEATURE_LOR \ | AARCH64_FEATURE_RDMA) #define AARCH64_ARCH_V8_2 AARCH64_FEATURE (AARCH64_ARCH_V8_1, \ AARCH64_FEATURE_V8_2 \ | AARCH64_FEATURE_RAS) #define AARCH64_ARCH_V8_3 AARCH64_FEATURE (AARCH64_ARCH_V8_2, \ AARCH64_FEATURE_V8_3 \ | AARCH64_FEATURE_RCPC \ | AARCH64_FEATURE_COMPNUM) #define AARCH64_ARCH_V8_4 AARCH64_FEATURE (AARCH64_ARCH_V8_3, \ AARCH64_FEATURE_V8_4 \ | AARCH64_FEATURE_DOTPROD \ | AARCH64_FEATURE_F16_FML) #define AARCH64_ARCH_V8_5 AARCH64_FEATURE (AARCH64_ARCH_V8_4, \ AARCH64_FEATURE_V8_5 \ | AARCH64_FEATURE_FLAGMANIP \ | AARCH64_FEATURE_FRINTTS \ | AARCH64_FEATURE_SB \ | AARCH64_FEATURE_PREDRES \ | AARCH64_FEATURE_CVADP \ | AARCH64_FEATURE_BTI \ | AARCH64_FEATURE_SCXTNUM \ | AARCH64_FEATURE_ID_PFR2 \ | AARCH64_FEATURE_SSBS) #define AARCH64_ARCH_V8_6 AARCH64_FEATURE (AARCH64_ARCH_V8_5, \ AARCH64_FEATURE_V8_6 \ | AARCH64_FEATURE_BFLOAT16 \ | AARCH64_FEATURE_I8MM) #define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0) #define AARCH64_ANY AARCH64_FEATURE (-1, 0) /* Any basic core. */ /* CPU-specific features. */ typedef unsigned long long aarch64_feature_set; #define AARCH64_CPU_HAS_ALL_FEATURES(CPU,FEAT) \ ((~(CPU) & (FEAT)) == 0) #define AARCH64_CPU_HAS_ANY_FEATURES(CPU,FEAT) \ (((CPU) & (FEAT)) != 0) #define AARCH64_CPU_HAS_FEATURE(CPU,FEAT) \ AARCH64_CPU_HAS_ALL_FEATURES (CPU,FEAT) #define AARCH64_MERGE_FEATURE_SETS(TARG,F1,F2) \ do \ { \ (TARG) = (F1) | (F2); \ } \ while (0) #define AARCH64_CLEAR_FEATURE(TARG,F1,F2) \ do \ { \ (TARG) = (F1) &~ (F2); \ } \ while (0) #define AARCH64_FEATURE(core,coproc) ((core) | (coproc)) enum aarch64_operand_class { AARCH64_OPND_CLASS_NIL, AARCH64_OPND_CLASS_INT_REG, AARCH64_OPND_CLASS_MODIFIED_REG, AARCH64_OPND_CLASS_FP_REG, AARCH64_OPND_CLASS_SIMD_REG, AARCH64_OPND_CLASS_SIMD_ELEMENT, AARCH64_OPND_CLASS_SISD_REG, AARCH64_OPND_CLASS_SIMD_REGLIST, AARCH64_OPND_CLASS_SVE_REG, AARCH64_OPND_CLASS_PRED_REG, AARCH64_OPND_CLASS_ADDRESS, AARCH64_OPND_CLASS_IMMEDIATE, AARCH64_OPND_CLASS_SYSTEM, AARCH64_OPND_CLASS_COND, }; /* Operand code that helps both parsing and coding. Keep AARCH64_OPERANDS synced. */ enum aarch64_opnd { AARCH64_OPND_NIL, /* no operand---MUST BE FIRST!*/ AARCH64_OPND_Rd, /* Integer register as destination. */ AARCH64_OPND_Rn, /* Integer register as source. */ AARCH64_OPND_Rm, /* Integer register as source. */ AARCH64_OPND_Rt, /* Integer register used in ld/st instructions. */ AARCH64_OPND_Rt2, /* Integer register used in ld/st pair instructions. */ AARCH64_OPND_Rt_SP, /* Integer Rt or SP used in STG instructions. */ AARCH64_OPND_Rs, /* Integer register used in ld/st exclusive. */ AARCH64_OPND_Ra, /* Integer register used in ddp_3src instructions. */ AARCH64_OPND_Rt_SYS, /* Integer register used in system instructions. */ AARCH64_OPND_Rd_SP, /* Integer Rd or SP. */ AARCH64_OPND_Rn_SP, /* Integer Rn or SP. */ AARCH64_OPND_Rm_SP, /* Integer Rm or SP. */ AARCH64_OPND_PAIRREG, /* Paired register operand. */ AARCH64_OPND_Rm_EXT, /* Integer Rm extended. */ AARCH64_OPND_Rm_SFT, /* Integer Rm shifted. */ AARCH64_OPND_Fd, /* Floating-point Fd. */ AARCH64_OPND_Fn, /* Floating-point Fn. */ AARCH64_OPND_Fm, /* Floating-point Fm. */ AARCH64_OPND_Fa, /* Floating-point Fa. */ AARCH64_OPND_Ft, /* Floating-point Ft. */ AARCH64_OPND_Ft2, /* Floating-point Ft2. */ AARCH64_OPND_Sd, /* AdvSIMD Scalar Sd. */ AARCH64_OPND_Sn, /* AdvSIMD Scalar Sn. */ AARCH64_OPND_Sm, /* AdvSIMD Scalar Sm. */ AARCH64_OPND_Va, /* AdvSIMD Vector Va. */ AARCH64_OPND_Vd, /* AdvSIMD Vector Vd. */ AARCH64_OPND_Vn, /* AdvSIMD Vector Vn. */ AARCH64_OPND_Vm, /* AdvSIMD Vector Vm. */ AARCH64_OPND_VdD1, /* AdvSIMD .D[1]; for FMOV only. */ AARCH64_OPND_VnD1, /* AdvSIMD .D[1]; for FMOV only. */ AARCH64_OPND_Ed, /* AdvSIMD Vector Element Vd. */ AARCH64_OPND_En, /* AdvSIMD Vector Element Vn. */ AARCH64_OPND_Em, /* AdvSIMD Vector Element Vm. */ AARCH64_OPND_Em16, /* AdvSIMD Vector Element Vm restricted to V0 - V15 when qualifier is S_H. */ AARCH64_OPND_LVn, /* AdvSIMD Vector register list used in e.g. TBL. */ AARCH64_OPND_LVt, /* AdvSIMD Vector register list used in ld/st. */ AARCH64_OPND_LVt_AL, /* AdvSIMD Vector register list for loading single structure to all lanes. */ AARCH64_OPND_LEt, /* AdvSIMD Vector Element list. */ AARCH64_OPND_CRn, /* Co-processor register in CRn field. */ AARCH64_OPND_CRm, /* Co-processor register in CRm field. */ AARCH64_OPND_IDX, /* AdvSIMD EXT index operand. */ AARCH64_OPND_MASK, /* AdvSIMD EXT index operand. */ AARCH64_OPND_IMM_VLSL,/* Immediate for shifting vector registers left. */ AARCH64_OPND_IMM_VLSR,/* Immediate for shifting vector registers right. */ AARCH64_OPND_SIMD_IMM,/* AdvSIMD modified immediate without shift. */ AARCH64_OPND_SIMD_IMM_SFT, /* AdvSIMD modified immediate with shift. */ AARCH64_OPND_SIMD_FPIMM,/* AdvSIMD 8-bit fp immediate. */ AARCH64_OPND_SHLL_IMM,/* Immediate shift for AdvSIMD SHLL instruction (no encoding). */ AARCH64_OPND_IMM0, /* Immediate for #0. */ AARCH64_OPND_FPIMM0, /* Immediate for #0.0. */ AARCH64_OPND_FPIMM, /* Floating-point Immediate. */ AARCH64_OPND_IMMR, /* Immediate # in e.g. BFM. */ AARCH64_OPND_IMMS, /* Immediate # in e.g. BFM. */ AARCH64_OPND_WIDTH, /* Immediate # in e.g. BFI. */ AARCH64_OPND_IMM, /* Immediate. */ AARCH64_OPND_IMM_2, /* Immediate. */ AARCH64_OPND_UIMM3_OP1,/* Unsigned 3-bit immediate in the op1 field. */ AARCH64_OPND_UIMM3_OP2,/* Unsigned 3-bit immediate in the op2 field. */ AARCH64_OPND_UIMM4, /* Unsigned 4-bit immediate in the CRm field. */ AARCH64_OPND_UIMM4_ADDG,/* Unsigned 4-bit immediate in addg/subg. */ AARCH64_OPND_UIMM7, /* Unsigned 7-bit immediate in the CRm:op2 fields. */ AARCH64_OPND_UIMM10, /* Unsigned 10-bit immediate in addg/subg. */ AARCH64_OPND_BIT_NUM, /* Immediate. */ AARCH64_OPND_EXCEPTION,/* imm16 operand in exception instructions. */ AARCH64_OPND_CCMP_IMM,/* Immediate in conditional compare instructions. */ AARCH64_OPND_SIMM5, /* 5-bit signed immediate in the imm5 field. */ AARCH64_OPND_NZCV, /* Flag bit specifier giving an alternative value for each condition flag. */ AARCH64_OPND_LIMM, /* Logical Immediate. */ AARCH64_OPND_AIMM, /* Arithmetic immediate. */ AARCH64_OPND_HALF, /* #{, LSL #} operand in move wide. */ AARCH64_OPND_FBITS, /* FP # operand in e.g. SCVTF */ AARCH64_OPND_IMM_MOV, /* Immediate operand for the MOV alias. */ AARCH64_OPND_IMM_ROT1, /* Immediate rotate operand for FCMLA. */ AARCH64_OPND_IMM_ROT2, /* Immediate rotate operand for indexed FCMLA. */ AARCH64_OPND_IMM_ROT3, /* Immediate rotate operand for FCADD. */ AARCH64_OPND_COND, /* Standard condition as the last operand. */ AARCH64_OPND_COND1, /* Same as the above, but excluding AL and NV. */ AARCH64_OPND_ADDR_ADRP, /* Memory address for ADRP */ AARCH64_OPND_ADDR_PCREL14, /* 14-bit PC-relative address for e.g. TBZ. */ AARCH64_OPND_ADDR_PCREL19, /* 19-bit PC-relative address for e.g. LDR. */ AARCH64_OPND_ADDR_PCREL21, /* 21-bit PC-relative address for e.g. ADR. */ AARCH64_OPND_ADDR_PCREL26, /* 26-bit PC-relative address for e.g. BL. */ AARCH64_OPND_ADDR_SIMPLE, /* Address of ld/st exclusive. */ AARCH64_OPND_ADDR_REGOFF, /* Address of register offset. */ AARCH64_OPND_ADDR_SIMM7, /* Address of signed 7-bit immediate. */ AARCH64_OPND_ADDR_SIMM9, /* Address of signed 9-bit immediate. */ AARCH64_OPND_ADDR_SIMM9_2, /* Same as the above, but the immediate is negative or unaligned and there is no writeback allowed. This operand code is only used to support the programmer- friendly feature of using LDR/STR as the the mnemonic name for LDUR/STUR instructions wherever there is no ambiguity. */ AARCH64_OPND_ADDR_SIMM10, /* Address of signed 10-bit immediate. */ AARCH64_OPND_ADDR_SIMM11, /* Address with a signed 11-bit (multiple of 16) immediate. */ AARCH64_OPND_ADDR_UIMM12, /* Address of unsigned 12-bit immediate. */ AARCH64_OPND_ADDR_SIMM13, /* Address with a signed 13-bit (multiple of 16) immediate. */ AARCH64_OPND_SIMD_ADDR_SIMPLE,/* Address of ld/st multiple structures. */ AARCH64_OPND_ADDR_OFFSET, /* Address with an optional 9-bit immediate. */ AARCH64_OPND_SIMD_ADDR_POST, /* Address of ld/st multiple post-indexed. */ AARCH64_OPND_SYSREG, /* System register operand. */ AARCH64_OPND_PSTATEFIELD, /* PSTATE field name operand. */ AARCH64_OPND_SYSREG_AT, /* System register operand. */ AARCH64_OPND_SYSREG_DC, /* System register operand. */ AARCH64_OPND_SYSREG_IC, /* System register operand. */ AARCH64_OPND_SYSREG_TLBI, /* System register operand. */ AARCH64_OPND_SYSREG_SR, /* System register RCTX operand. */ AARCH64_OPND_BARRIER, /* Barrier operand. */ AARCH64_OPND_BARRIER_ISB, /* Barrier operand for ISB. */ AARCH64_OPND_PRFOP, /* Prefetch operation. */ AARCH64_OPND_BARRIER_PSB, /* Barrier operand for PSB. */ AARCH64_OPND_BTI_TARGET, /* BTI {}. */ AARCH64_OPND_SVE_ADDR_RI_S4x16, /* SVE [, #*16]. */ AARCH64_OPND_SVE_ADDR_RI_S4x32, /* SVE [, #*32]. */ AARCH64_OPND_SVE_ADDR_RI_S4xVL, /* SVE [, #, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_S4x2xVL, /* SVE [, #*2, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_S4x3xVL, /* SVE [, #*3, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_S4x4xVL, /* SVE [, #*4, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_S6xVL, /* SVE [, #, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_S9xVL, /* SVE [, #, MUL VL]. */ AARCH64_OPND_SVE_ADDR_RI_U6, /* SVE [, #]. */ AARCH64_OPND_SVE_ADDR_RI_U6x2, /* SVE [, #*2]. */ AARCH64_OPND_SVE_ADDR_RI_U6x4, /* SVE [, #*4]. */ AARCH64_OPND_SVE_ADDR_RI_U6x8, /* SVE [, #*8]. */ AARCH64_OPND_SVE_ADDR_R, /* SVE []. */ AARCH64_OPND_SVE_ADDR_RR, /* SVE [, ]. */ AARCH64_OPND_SVE_ADDR_RR_LSL1, /* SVE [, , LSL #1]. */ AARCH64_OPND_SVE_ADDR_RR_LSL2, /* SVE [, , LSL #2]. */ AARCH64_OPND_SVE_ADDR_RR_LSL3, /* SVE [, , LSL #3]. */ AARCH64_OPND_SVE_ADDR_RX, /* SVE [, ]. */ AARCH64_OPND_SVE_ADDR_RX_LSL1, /* SVE [, , LSL #1]. */ AARCH64_OPND_SVE_ADDR_RX_LSL2, /* SVE [, , LSL #2]. */ AARCH64_OPND_SVE_ADDR_RX_LSL3, /* SVE [, , LSL #3]. */ AARCH64_OPND_SVE_ADDR_ZX, /* SVE [Zn.{, }]. */ AARCH64_OPND_SVE_ADDR_RZ, /* SVE [, Zm.D]. */ AARCH64_OPND_SVE_ADDR_RZ_LSL1, /* SVE [, Zm.D, LSL #1]. */ AARCH64_OPND_SVE_ADDR_RZ_LSL2, /* SVE [, Zm.D, LSL #2]. */ AARCH64_OPND_SVE_ADDR_RZ_LSL3, /* SVE [, Zm.D, LSL #3]. */ AARCH64_OPND_SVE_ADDR_RZ_XTW_14, /* SVE [, Zm., (S|U)XTW]. Bit 14 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW_22, /* SVE [, Zm., (S|U)XTW]. Bit 22 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW1_14, /* SVE [, Zm., (S|U)XTW #1]. Bit 14 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW1_22, /* SVE [, Zm., (S|U)XTW #1]. Bit 22 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW2_14, /* SVE [, Zm., (S|U)XTW #2]. Bit 14 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW2_22, /* SVE [, Zm., (S|U)XTW #2]. Bit 22 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW3_14, /* SVE [, Zm., (S|U)XTW #3]. Bit 14 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_RZ_XTW3_22, /* SVE [, Zm., (S|U)XTW #3]. Bit 22 controls S/U choice. */ AARCH64_OPND_SVE_ADDR_ZI_U5, /* SVE [Zn., #]. */ AARCH64_OPND_SVE_ADDR_ZI_U5x2, /* SVE [Zn., #*2]. */ AARCH64_OPND_SVE_ADDR_ZI_U5x4, /* SVE [Zn., #*4]. */ AARCH64_OPND_SVE_ADDR_ZI_U5x8, /* SVE [Zn., #*8]. */ AARCH64_OPND_SVE_ADDR_ZZ_LSL, /* SVE [Zn., Zm,, LSL #]. */ AARCH64_OPND_SVE_ADDR_ZZ_SXTW, /* SVE [Zn., Zm,, SXTW #]. */ AARCH64_OPND_SVE_ADDR_ZZ_UXTW, /* SVE [Zn., Zm,, UXTW #]. */ AARCH64_OPND_SVE_AIMM, /* SVE unsigned arithmetic immediate. */ AARCH64_OPND_SVE_ASIMM, /* SVE signed arithmetic immediate. */ AARCH64_OPND_SVE_FPIMM8, /* SVE 8-bit floating-point immediate. */ AARCH64_OPND_SVE_I1_HALF_ONE, /* SVE choice between 0.5 and 1.0. */ AARCH64_OPND_SVE_I1_HALF_TWO, /* SVE choice between 0.5 and 2.0. */ AARCH64_OPND_SVE_I1_ZERO_ONE, /* SVE choice between 0.0 and 1.0. */ AARCH64_OPND_SVE_IMM_ROT1, /* SVE 1-bit rotate operand (90 or 270). */ AARCH64_OPND_SVE_IMM_ROT2, /* SVE 2-bit rotate operand (N*90). */ AARCH64_OPND_SVE_IMM_ROT3, /* SVE cadd 1-bit rotate (90 or 270). */ AARCH64_OPND_SVE_INV_LIMM, /* SVE inverted logical immediate. */ AARCH64_OPND_SVE_LIMM, /* SVE logical immediate. */ AARCH64_OPND_SVE_LIMM_MOV, /* SVE logical immediate for MOV. */ AARCH64_OPND_SVE_PATTERN, /* SVE vector pattern enumeration. */ AARCH64_OPND_SVE_PATTERN_SCALED, /* Likewise, with additional MUL factor. */ AARCH64_OPND_SVE_PRFOP, /* SVE prefetch operation. */ AARCH64_OPND_SVE_Pd, /* SVE p0-p15 in Pd. */ AARCH64_OPND_SVE_Pg3, /* SVE p0-p7 in Pg. */ AARCH64_OPND_SVE_Pg4_5, /* SVE p0-p15 in Pg, bits [8,5]. */ AARCH64_OPND_SVE_Pg4_10, /* SVE p0-p15 in Pg, bits [13,10]. */ AARCH64_OPND_SVE_Pg4_16, /* SVE p0-p15 in Pg, bits [19,16]. */ AARCH64_OPND_SVE_Pm, /* SVE p0-p15 in Pm. */ AARCH64_OPND_SVE_Pn, /* SVE p0-p15 in Pn. */ AARCH64_OPND_SVE_Pt, /* SVE p0-p15 in Pt. */ AARCH64_OPND_SVE_Rm, /* Integer Rm or ZR, alt. SVE position. */ AARCH64_OPND_SVE_Rn_SP, /* Integer Rn or SP, alt. SVE position. */ AARCH64_OPND_SVE_SHLIMM_PRED, /* SVE shift left amount (predicated). */ AARCH64_OPND_SVE_SHLIMM_UNPRED, /* SVE shift left amount (unpredicated). */ AARCH64_OPND_SVE_SHLIMM_UNPRED_22, /* SVE 3 bit shift left unpred. */ AARCH64_OPND_SVE_SHRIMM_PRED, /* SVE shift right amount (predicated). */ AARCH64_OPND_SVE_SHRIMM_UNPRED, /* SVE shift right amount (unpredicated). */ AARCH64_OPND_SVE_SHRIMM_UNPRED_22, /* SVE 3 bit shift right unpred. */ AARCH64_OPND_SVE_SIMM5, /* SVE signed 5-bit immediate. */ AARCH64_OPND_SVE_SIMM5B, /* SVE secondary signed 5-bit immediate. */ AARCH64_OPND_SVE_SIMM6, /* SVE signed 6-bit immediate. */ AARCH64_OPND_SVE_SIMM8, /* SVE signed 8-bit immediate. */ AARCH64_OPND_SVE_UIMM3, /* SVE unsigned 3-bit immediate. */ AARCH64_OPND_SVE_UIMM7, /* SVE unsigned 7-bit immediate. */ AARCH64_OPND_SVE_UIMM8, /* SVE unsigned 8-bit immediate. */ AARCH64_OPND_SVE_UIMM8_53, /* SVE split unsigned 8-bit immediate. */ AARCH64_OPND_SVE_VZn, /* Scalar SIMD&FP register in Zn field. */ AARCH64_OPND_SVE_Vd, /* Scalar SIMD&FP register in Vd. */ AARCH64_OPND_SVE_Vm, /* Scalar SIMD&FP register in Vm. */ AARCH64_OPND_SVE_Vn, /* Scalar SIMD&FP register in Vn. */ AARCH64_OPND_SVE_Za_5, /* SVE vector register in Za, bits [9,5]. */ AARCH64_OPND_SVE_Za_16, /* SVE vector register in Za, bits [20,16]. */ AARCH64_OPND_SVE_Zd, /* SVE vector register in Zd. */ AARCH64_OPND_SVE_Zm_5, /* SVE vector register in Zm, bits [9,5]. */ AARCH64_OPND_SVE_Zm_16, /* SVE vector register in Zm, bits [20,16]. */ AARCH64_OPND_SVE_Zm3_INDEX, /* z0-z7[0-3] in Zm, bits [20,16]. */ AARCH64_OPND_SVE_Zm3_22_INDEX, /* z0-z7[0-7] in Zm3_INDEX plus bit 22. */ AARCH64_OPND_SVE_Zm3_11_INDEX, /* z0-z7[0-7] in Zm3_INDEX plus bit 11. */ AARCH64_OPND_SVE_Zm4_11_INDEX, /* z0-z15[0-3] in Zm plus bit 11. */ AARCH64_OPND_SVE_Zm4_INDEX, /* z0-z15[0-1] in Zm, bits [20,16]. */ AARCH64_OPND_SVE_Zn, /* SVE vector register in Zn. */ AARCH64_OPND_SVE_Zn_INDEX, /* Indexed SVE vector register, for DUP. */ AARCH64_OPND_SVE_ZnxN, /* SVE vector register list in Zn. */ AARCH64_OPND_SVE_Zt, /* SVE vector register in Zt. */ AARCH64_OPND_SVE_ZtxN, /* SVE vector register list in Zt. */ AARCH64_OPND_TME_UIMM16, /* TME unsigned 16-bit immediate. */ AARCH64_OPND_SM3_IMM2, /* SM3 encodes lane in bits [13, 14]. */ }; /* Qualifier constrains an operand. It either specifies a variant of an operand type or limits values available to an operand type. N.B. Order is important; keep aarch64_opnd_qualifiers synced. */ enum aarch64_opnd_qualifier { /* Indicating no further qualification on an operand. */ AARCH64_OPND_QLF_NIL, /* Qualifying an operand which is a general purpose (integer) register; indicating the operand data size or a specific register. */ AARCH64_OPND_QLF_W, /* Wn, WZR or WSP. */ AARCH64_OPND_QLF_X, /* Xn, XZR or XSP. */ AARCH64_OPND_QLF_WSP, /* WSP. */ AARCH64_OPND_QLF_SP, /* SP. */ /* Qualifying an operand which is a floating-point register, a SIMD vector element or a SIMD vector element list; indicating operand data size or the size of each SIMD vector element in the case of a SIMD vector element list. These qualifiers are also used to qualify an address operand to indicate the size of data element a load/store instruction is accessing. They are also used for the immediate shift operand in e.g. SSHR. Such a use is only for the ease of operand encoding/decoding and qualifier sequence matching; such a use should not be applied widely; use the value constraint qualifiers for immediate operands wherever possible. */ AARCH64_OPND_QLF_S_B, AARCH64_OPND_QLF_S_H, AARCH64_OPND_QLF_S_S, AARCH64_OPND_QLF_S_D, AARCH64_OPND_QLF_S_Q, /* These type qualifiers have a special meaning in that they mean 4 x 1 byte or 2 x 2 byte are selected by the instruction. Other than that they have no difference with AARCH64_OPND_QLF_S_B in encoding. They are here purely for syntactical reasons and is an exception from normal AArch64 disassembly scheme. */ AARCH64_OPND_QLF_S_4B, AARCH64_OPND_QLF_S_2H, /* Qualifying an operand which is a SIMD vector register or a SIMD vector register list; indicating register shape. They are also used for the immediate shift operand in e.g. SSHR. Such a use is only for the ease of operand encoding/decoding and qualifier sequence matching; such a use should not be applied widely; use the value constraint qualifiers for immediate operands wherever possible. */ AARCH64_OPND_QLF_V_4B, AARCH64_OPND_QLF_V_8B, AARCH64_OPND_QLF_V_16B, AARCH64_OPND_QLF_V_2H, AARCH64_OPND_QLF_V_4H, AARCH64_OPND_QLF_V_8H, AARCH64_OPND_QLF_V_2S, AARCH64_OPND_QLF_V_4S, AARCH64_OPND_QLF_V_1D, AARCH64_OPND_QLF_V_2D, AARCH64_OPND_QLF_V_1Q, AARCH64_OPND_QLF_P_Z, AARCH64_OPND_QLF_P_M, /* Used in scaled signed immediate that are scaled by a Tag granule like in stg, st2g, etc. */ AARCH64_OPND_QLF_imm_tag, /* Constraint on value. */ AARCH64_OPND_QLF_CR, /* CRn, CRm. */ AARCH64_OPND_QLF_imm_0_7, AARCH64_OPND_QLF_imm_0_15, AARCH64_OPND_QLF_imm_0_31, AARCH64_OPND_QLF_imm_0_63, AARCH64_OPND_QLF_imm_1_32, AARCH64_OPND_QLF_imm_1_64, /* Indicate whether an AdvSIMD modified immediate operand is shift-zeros or shift-ones. */ AARCH64_OPND_QLF_LSL, AARCH64_OPND_QLF_MSL, /* Special qualifier helping retrieve qualifier information during the decoding time (currently not in use). */ AARCH64_OPND_QLF_RETRIEVE, }; /* Instruction class. */ enum aarch64_insn_class { aarch64_misc, addsub_carry, addsub_ext, addsub_imm, addsub_shift, asimdall, asimddiff, asimdelem, asimdext, asimdimm, asimdins, asimdmisc, asimdperm, asimdsame, asimdshf, asimdtbl, asisddiff, asisdelem, asisdlse, asisdlsep, asisdlso, asisdlsop, asisdmisc, asisdone, asisdpair, asisdsame, asisdshf, bitfield, branch_imm, branch_reg, compbranch, condbranch, condcmp_imm, condcmp_reg, condsel, cryptoaes, cryptosha2, cryptosha3, dp_1src, dp_2src, dp_3src, exception, extract, float2fix, float2int, floatccmp, floatcmp, floatdp1, floatdp2, floatdp3, floatimm, floatsel, ldst_immpost, ldst_immpre, ldst_imm9, /* immpost or immpre */ ldst_imm10, /* LDRAA/LDRAB */ ldst_pos, ldst_regoff, ldst_unpriv, ldst_unscaled, ldstexcl, ldstnapair_offs, ldstpair_off, ldstpair_indexed, loadlit, log_imm, log_shift, lse_atomic, movewide, pcreladdr, ic_system, sve_cpy, sve_index, sve_limm, sve_misc, sve_movprfx, sve_pred_zm, sve_shift_pred, sve_shift_unpred, sve_size_bhs, sve_size_bhsd, sve_size_hsd, sve_size_hsd2, sve_size_sd, sve_size_bh, sve_size_sd2, sve_size_13, sve_shift_tsz_hsd, sve_shift_tsz_bhsd, sve_size_tsz_bhs, testbranch, cryptosm3, cryptosm4, dotproduct, bfloat16, }; /* Opcode enumerators. */ enum aarch64_op { OP_NIL, OP_STRB_POS, OP_LDRB_POS, OP_LDRSB_POS, OP_STRH_POS, OP_LDRH_POS, OP_LDRSH_POS, OP_STR_POS, OP_LDR_POS, OP_STRF_POS, OP_LDRF_POS, OP_LDRSW_POS, OP_PRFM_POS, OP_STURB, OP_LDURB, OP_LDURSB, OP_STURH, OP_LDURH, OP_LDURSH, OP_STUR, OP_LDUR, OP_STURV, OP_LDURV, OP_LDURSW, OP_PRFUM, OP_LDR_LIT, OP_LDRV_LIT, OP_LDRSW_LIT, OP_PRFM_LIT, OP_ADD, OP_B, OP_BL, OP_MOVN, OP_MOVZ, OP_MOVK, OP_MOV_IMM_LOG, /* MOV alias for moving bitmask immediate. */ OP_MOV_IMM_WIDE, /* MOV alias for moving wide immediate. */ OP_MOV_IMM_WIDEN, /* MOV alias for moving wide immediate (negated). */ OP_MOV_V, /* MOV alias for moving vector register. */ OP_ASR_IMM, OP_LSR_IMM, OP_LSL_IMM, OP_BIC, OP_UBFX, OP_BFXIL, OP_SBFX, OP_SBFIZ, OP_BFI, OP_BFC, /* ARMv8.2. */ OP_UBFIZ, OP_UXTB, OP_UXTH, OP_UXTW, OP_CINC, OP_CINV, OP_CNEG, OP_CSET, OP_CSETM, OP_FCVT, OP_FCVTN, OP_FCVTN2, OP_FCVTL, OP_FCVTL2, OP_FCVTXN_S, /* Scalar version. */ OP_ROR_IMM, OP_SXTL, OP_SXTL2, OP_UXTL, OP_UXTL2, OP_MOV_P_P, OP_MOV_Z_P_Z, OP_MOV_Z_V, OP_MOV_Z_Z, OP_MOV_Z_Zi, OP_MOVM_P_P_P, OP_MOVS_P_P, OP_MOVZS_P_P_P, OP_MOVZ_P_P_P, OP_NOTS_P_P_P_Z, OP_NOT_P_P_P_Z, OP_FCMLA_ELEM, /* ARMv8.3, indexed element version. */ OP_TOTAL_NUM, /* Pseudo. */ }; /* Error types. */ enum err_type { ERR_OK, ERR_UND, ERR_UNP, ERR_NYI, ERR_VFI, ERR_NR_ENTRIES }; /* Maximum number of operands an instruction can have. */ #define AARCH64_MAX_OPND_NUM 6 /* Maximum number of qualifier sequences an instruction can have. */ #define AARCH64_MAX_QLF_SEQ_NUM 10 /* Operand qualifier typedef; optimized for the size. */ typedef unsigned char aarch64_opnd_qualifier_t; /* Operand qualifier sequence typedef. */ typedef aarch64_opnd_qualifier_t \ aarch64_opnd_qualifier_seq_t [AARCH64_MAX_OPND_NUM]; /* FIXME: improve the efficiency. */ static inline bfd_boolean empty_qualifier_sequence_p (const aarch64_opnd_qualifier_t *qualifiers) { int i; for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i) if (qualifiers[i] != AARCH64_OPND_QLF_NIL) return FALSE; return TRUE; } /* Forward declare error reporting type. */ typedef struct aarch64_operand_error aarch64_operand_error; /* Forward declare instruction sequence type. */ typedef struct aarch64_instr_sequence aarch64_instr_sequence; /* Forward declare instruction definition. */ typedef struct aarch64_inst aarch64_inst; /* This structure holds information for a particular opcode. */ struct aarch64_opcode { /* The name of the mnemonic. */ const char *name; /* The opcode itself. Those bits which will be filled in with operands are zeroes. */ aarch64_insn opcode; /* The opcode mask. This is used by the disassembler. This is a mask containing ones indicating those bits which must match the opcode field, and zeroes indicating those bits which need not match (and are presumably filled in by operands). */ aarch64_insn mask; /* Instruction class. */ enum aarch64_insn_class iclass; /* Enumerator identifier. */ enum aarch64_op op; /* Which architecture variant provides this instruction. */ const aarch64_feature_set *avariant; /* An array of operand codes. Each code is an index into the operand table. They appear in the order which the operands must appear in assembly code, and are terminated by a zero. */ enum aarch64_opnd operands[AARCH64_MAX_OPND_NUM]; /* A list of operand qualifier code sequence. Each operand qualifier code qualifies the corresponding operand code. Each operand qualifier sequence specifies a valid opcode variant and related constraint on operands. */ aarch64_opnd_qualifier_seq_t qualifiers_list[AARCH64_MAX_QLF_SEQ_NUM]; /* Flags providing information about this instruction */ uint64_t flags; /* Extra constraints on the instruction that the verifier checks. */ uint32_t constraints; /* If nonzero, this operand and operand 0 are both registers and are required to have the same register number. */ unsigned char tied_operand; /* If non-NULL, a function to verify that a given instruction is valid. */ enum err_type (* verifier) (const struct aarch64_inst *, const aarch64_insn, bfd_vma, bfd_boolean, aarch64_operand_error *, struct aarch64_instr_sequence *); }; typedef struct aarch64_opcode aarch64_opcode; /* Table describing all the AArch64 opcodes. */ extern aarch64_opcode aarch64_opcode_table[]; /* Opcode flags. */ #define F_ALIAS (1 << 0) #define F_HAS_ALIAS (1 << 1) /* Disassembly preference priority 1-3 (the larger the higher). If nothing is specified, it is the priority 0 by default, i.e. the lowest priority. */ #define F_P1 (1 << 2) #define F_P2 (2 << 2) #define F_P3 (3 << 2) /* Flag an instruction that is truly conditional executed, e.g. b.cond. */ #define F_COND (1 << 4) /* Instruction has the field of 'sf'. */ #define F_SF (1 << 5) /* Instruction has the field of 'size:Q'. */ #define F_SIZEQ (1 << 6) /* Floating-point instruction has the field of 'type'. */ #define F_FPTYPE (1 << 7) /* AdvSIMD scalar instruction has the field of 'size'. */ #define F_SSIZE (1 << 8) /* AdvSIMD vector register arrangement specifier encoded in "imm5<3:0>:Q". */ #define F_T (1 << 9) /* Size of GPR operand in AdvSIMD instructions encoded in Q. */ #define F_GPRSIZE_IN_Q (1 << 10) /* Size of Rt load signed instruction encoded in opc[0], i.e. bit 22. */ #define F_LDS_SIZE (1 << 11) /* Optional operand; assume maximum of 1 operand can be optional. */ #define F_OPD0_OPT (1 << 12) #define F_OPD1_OPT (2 << 12) #define F_OPD2_OPT (3 << 12) #define F_OPD3_OPT (4 << 12) #define F_OPD4_OPT (5 << 12) /* Default value for the optional operand when omitted from the assembly. */ #define F_DEFAULT(X) (((X) & 0x1f) << 15) /* Instruction that is an alias of another instruction needs to be encoded/decoded by converting it to/from the real form, followed by the encoding/decoding according to the rules of the real opcode. This compares to the direct coding using the alias's information. N.B. this flag requires F_ALIAS to be used together. */ #define F_CONV (1 << 20) /* Use together with F_ALIAS to indicate an alias opcode is a programmer friendly pseudo instruction available only in the assembly code (thus will not show up in the disassembly). */ #define F_PSEUDO (1 << 21) /* Instruction has miscellaneous encoding/decoding rules. */ #define F_MISC (1 << 22) /* Instruction has the field of 'N'; used in conjunction with F_SF. */ #define F_N (1 << 23) /* Opcode dependent field. */ #define F_OD(X) (((X) & 0x7) << 24) /* Instruction has the field of 'sz'. */ #define F_LSE_SZ (1 << 27) /* Require an exact qualifier match, even for NIL qualifiers. */ #define F_STRICT (1ULL << 28) /* This system instruction is used to read system registers. */ #define F_SYS_READ (1ULL << 29) /* This system instruction is used to write system registers. */ #define F_SYS_WRITE (1ULL << 30) /* This instruction has an extra constraint on it that imposes a requirement on subsequent instructions. */ #define F_SCAN (1ULL << 31) /* Next bit is 32. */ /* Instruction constraints. */ /* This instruction has a predication constraint on the instruction at PC+4. */ #define C_SCAN_MOVPRFX (1U << 0) /* This instruction's operation width is determined by the operand with the largest element size. */ #define C_MAX_ELEM (1U << 1) /* Next bit is 2. */ static inline bfd_boolean alias_opcode_p (const aarch64_opcode *opcode) { return (opcode->flags & F_ALIAS) ? TRUE : FALSE; } static inline bfd_boolean opcode_has_alias (const aarch64_opcode *opcode) { return (opcode->flags & F_HAS_ALIAS) ? TRUE : FALSE; } /* Priority for disassembling preference. */ static inline int opcode_priority (const aarch64_opcode *opcode) { return (opcode->flags >> 2) & 0x3; } static inline bfd_boolean pseudo_opcode_p (const aarch64_opcode *opcode) { return (opcode->flags & F_PSEUDO) != 0lu ? TRUE : FALSE; } static inline bfd_boolean optional_operand_p (const aarch64_opcode *opcode, unsigned int idx) { return (((opcode->flags >> 12) & 0x7) == idx + 1) ? TRUE : FALSE; } static inline aarch64_insn get_optional_operand_default_value (const aarch64_opcode *opcode) { return (opcode->flags >> 15) & 0x1f; } static inline unsigned int get_opcode_dependent_value (const aarch64_opcode *opcode) { return (opcode->flags >> 24) & 0x7; } static inline bfd_boolean opcode_has_special_coder (const aarch64_opcode *opcode) { return (opcode->flags & (F_SF | F_LSE_SZ | F_SIZEQ | F_FPTYPE | F_SSIZE | F_T | F_GPRSIZE_IN_Q | F_LDS_SIZE | F_MISC | F_N | F_COND)) ? TRUE : FALSE; } struct aarch64_name_value_pair { const char * name; aarch64_insn value; }; extern const struct aarch64_name_value_pair aarch64_operand_modifiers []; extern const struct aarch64_name_value_pair aarch64_barrier_options [16]; extern const struct aarch64_name_value_pair aarch64_prfops [32]; extern const struct aarch64_name_value_pair aarch64_hint_options []; typedef struct { const char * name; aarch64_insn value; uint32_t flags; } aarch64_sys_reg; extern const aarch64_sys_reg aarch64_sys_regs []; extern const aarch64_sys_reg aarch64_pstatefields []; extern bfd_boolean aarch64_sys_reg_deprecated_p (const aarch64_sys_reg *); extern bfd_boolean aarch64_sys_reg_supported_p (const aarch64_feature_set, const aarch64_sys_reg *); extern bfd_boolean aarch64_pstatefield_supported_p (const aarch64_feature_set, const aarch64_sys_reg *); typedef struct { const char *name; uint32_t value; uint32_t flags ; } aarch64_sys_ins_reg; extern bfd_boolean aarch64_sys_ins_reg_has_xt (const aarch64_sys_ins_reg *); extern bfd_boolean aarch64_sys_ins_reg_supported_p (const aarch64_feature_set, const aarch64_sys_ins_reg *); extern const aarch64_sys_ins_reg aarch64_sys_regs_ic []; extern const aarch64_sys_ins_reg aarch64_sys_regs_dc []; extern const aarch64_sys_ins_reg aarch64_sys_regs_at []; extern const aarch64_sys_ins_reg aarch64_sys_regs_tlbi []; extern const aarch64_sys_ins_reg aarch64_sys_regs_sr []; /* Shift/extending operator kinds. N.B. order is important; keep aarch64_operand_modifiers synced. */ enum aarch64_modifier_kind { AARCH64_MOD_NONE, AARCH64_MOD_MSL, AARCH64_MOD_ROR, AARCH64_MOD_ASR, AARCH64_MOD_LSR, AARCH64_MOD_LSL, AARCH64_MOD_UXTB, AARCH64_MOD_UXTH, AARCH64_MOD_UXTW, AARCH64_MOD_UXTX, AARCH64_MOD_SXTB, AARCH64_MOD_SXTH, AARCH64_MOD_SXTW, AARCH64_MOD_SXTX, AARCH64_MOD_MUL, AARCH64_MOD_MUL_VL, }; bfd_boolean aarch64_extend_operator_p (enum aarch64_modifier_kind); enum aarch64_modifier_kind aarch64_get_operand_modifier (const struct aarch64_name_value_pair *); /* Condition. */ typedef struct { /* A list of names with the first one as the disassembly preference; terminated by NULL if fewer than 3. */ const char *names[4]; aarch64_insn value; } aarch64_cond; extern const aarch64_cond aarch64_conds[16]; const aarch64_cond* get_cond_from_value (aarch64_insn value); const aarch64_cond* get_inverted_cond (const aarch64_cond *cond); /* Structure representing an operand. */ struct aarch64_opnd_info { enum aarch64_opnd type; aarch64_opnd_qualifier_t qualifier; int idx; union { struct { unsigned regno; } reg; struct { unsigned int regno; int64_t index; } reglane; /* e.g. LVn. */ struct { unsigned first_regno : 5; unsigned num_regs : 3; /* 1 if it is a list of reg element. */ unsigned has_index : 1; /* Lane index; valid only when has_index is 1. */ int64_t index; } reglist; /* e.g. immediate or pc relative address offset. */ struct { int64_t value; unsigned is_fp : 1; } imm; /* e.g. address in STR (register offset). */ struct { unsigned base_regno; struct { union { int imm; unsigned regno; }; unsigned is_reg; } offset; unsigned pcrel : 1; /* PC-relative. */ unsigned writeback : 1; unsigned preind : 1; /* Pre-indexed. */ unsigned postind : 1; /* Post-indexed. */ } addr; struct { /* The encoding of the system register. */ aarch64_insn value; /* The system register flags. */ uint32_t flags; } sysreg; const aarch64_cond *cond; /* The encoding of the PSTATE field. */ aarch64_insn pstatefield; const aarch64_sys_ins_reg *sysins_op; const struct aarch64_name_value_pair *barrier; const struct aarch64_name_value_pair *hint_option; const struct aarch64_name_value_pair *prfop; }; /* Operand shifter; in use when the operand is a register offset address, add/sub extended reg, etc. e.g. {, {#}}. */ struct { enum aarch64_modifier_kind kind; unsigned operator_present: 1; /* Only valid during encoding. */ /* Value of the 'S' field in ld/st reg offset; used only in decoding. */ unsigned amount_present: 1; int64_t amount; } shifter; unsigned skip:1; /* Operand is not completed if there is a fixup needed to be done on it. In some (but not all) of these cases, we need to tell libopcodes to skip the constraint checking and the encoding for this operand, so that the libopcodes can pick up the right opcode before the operand is fixed-up. This flag should only be used during the assembling/encoding. */ unsigned present:1; /* Whether this operand is present in the assembly line; not used during the disassembly. */ }; typedef struct aarch64_opnd_info aarch64_opnd_info; /* Structure representing an instruction. It is used during both the assembling and disassembling. The assembler fills an aarch64_inst after a successful parsing and then passes it to the encoding routine to do the encoding. During the disassembling, the disassembler calls the decoding routine to decode a binary instruction; on a successful return, such a structure will be filled with information of the instruction; then the disassembler uses the information to print out the instruction. */ struct aarch64_inst { /* The value of the binary instruction. */ aarch64_insn value; /* Corresponding opcode entry. */ const aarch64_opcode *opcode; /* Condition for a truly conditional-executed instrutions, e.g. b.cond. */ const aarch64_cond *cond; /* Operands information. */ aarch64_opnd_info operands[AARCH64_MAX_OPND_NUM]; }; /* Defining the HINT #imm values for the aarch64_hint_options. */ #define HINT_OPD_CSYNC 0x11 #define HINT_OPD_C 0x22 #define HINT_OPD_J 0x24 #define HINT_OPD_JC 0x26 #define HINT_OPD_NULL 0x00 /* Diagnosis related declaration and interface. */ /* Operand error kind enumerators. AARCH64_OPDE_RECOVERABLE Less severe error found during the parsing, very possibly because that GAS has picked up a wrong instruction template for the parsing. AARCH64_OPDE_SYNTAX_ERROR General syntax error; it can be either a user error, or simply because that GAS is trying a wrong instruction template. AARCH64_OPDE_FATAL_SYNTAX_ERROR Definitely a user syntax error. AARCH64_OPDE_INVALID_VARIANT No syntax error, but the operands are not a valid combination, e.g. FMOV D0,S0 AARCH64_OPDE_UNTIED_OPERAND The asm failed to use the same register for a destination operand and a tied source operand. AARCH64_OPDE_OUT_OF_RANGE Error about some immediate value out of a valid range. AARCH64_OPDE_UNALIGNED Error about some immediate value not properly aligned (i.e. not being a multiple times of a certain value). AARCH64_OPDE_REG_LIST Error about the register list operand having unexpected number of registers. AARCH64_OPDE_OTHER_ERROR Error of the highest severity and used for any severe issue that does not fall into any of the above categories. The enumerators are only interesting to GAS. They are declared here (in libopcodes) because that some errors are detected (and then notified to GAS) by libopcodes (rather than by GAS solely). The first three errors are only deteced by GAS while the AARCH64_OPDE_INVALID_VARIANT error can only be spotted by libopcodes as only libopcodes has the information about the valid variants of each instruction. The enumerators have an increasing severity. This is helpful when there are multiple instruction templates available for a given mnemonic name (e.g. FMOV); this mechanism will help choose the most suitable template from which the generated diagnostics can most closely describe the issues, if any. */ enum aarch64_operand_error_kind { AARCH64_OPDE_NIL, AARCH64_OPDE_RECOVERABLE, AARCH64_OPDE_SYNTAX_ERROR, AARCH64_OPDE_FATAL_SYNTAX_ERROR, AARCH64_OPDE_INVALID_VARIANT, AARCH64_OPDE_UNTIED_OPERAND, AARCH64_OPDE_OUT_OF_RANGE, AARCH64_OPDE_UNALIGNED, AARCH64_OPDE_REG_LIST, AARCH64_OPDE_OTHER_ERROR }; /* N.B. GAS assumes that this structure work well with shallow copy. */ struct aarch64_operand_error { enum aarch64_operand_error_kind kind; int index; const char *error; int data[3]; /* Some data for extra information. */ bfd_boolean non_fatal; }; /* AArch64 sequence structure used to track instructions with F_SCAN dependencies for both assembler and disassembler. */ struct aarch64_instr_sequence { /* The instruction that caused this sequence to be opened. */ aarch64_inst *instr; /* The number of instructions the above instruction allows to be kept in the sequence before an automatic close is done. */ int num_insns; /* The instructions currently added to the sequence. */ aarch64_inst **current_insns; /* The number of instructions already in the sequence. */ int next_insn; }; /* Encoding entrypoint. */ extern int aarch64_opcode_encode (const aarch64_opcode *, const aarch64_inst *, aarch64_insn *, aarch64_opnd_qualifier_t *, aarch64_operand_error *, aarch64_instr_sequence *); extern const aarch64_opcode * aarch64_replace_opcode (struct aarch64_inst *, const aarch64_opcode *); /* Given the opcode enumerator OP, return the pointer to the corresponding opcode entry. */ extern const aarch64_opcode * aarch64_get_opcode (enum aarch64_op); /* Generate the string representation of an operand. */ extern void aarch64_print_operand (char *, size_t, bfd_vma, const aarch64_opcode *, const aarch64_opnd_info *, int, int *, bfd_vma *, char **); /* Miscellaneous interface. */ extern int aarch64_operand_index (const enum aarch64_opnd *, enum aarch64_opnd); extern aarch64_opnd_qualifier_t aarch64_get_expected_qualifier (const aarch64_opnd_qualifier_seq_t *, int, const aarch64_opnd_qualifier_t, int); extern bfd_boolean aarch64_is_destructive_by_operands (const aarch64_opcode *); extern int aarch64_num_of_operands (const aarch64_opcode *); extern int aarch64_stack_pointer_p (const aarch64_opnd_info *); extern int aarch64_zero_register_p (const aarch64_opnd_info *); extern enum err_type aarch64_decode_insn (aarch64_insn, aarch64_inst *, bfd_boolean, aarch64_operand_error *); extern void init_insn_sequence (const struct aarch64_inst *, aarch64_instr_sequence *); /* Given an operand qualifier, return the expected data element size of a qualified operand. */ extern unsigned char aarch64_get_qualifier_esize (aarch64_opnd_qualifier_t); extern enum aarch64_operand_class aarch64_get_operand_class (enum aarch64_opnd); extern const char * aarch64_get_operand_name (enum aarch64_opnd); extern const char * aarch64_get_operand_desc (enum aarch64_opnd); extern bfd_boolean aarch64_sve_dupm_mov_immediate_p (uint64_t, int); #ifdef DEBUG_AARCH64 extern int debug_dump; extern void aarch64_verbose (const char *, ...) __attribute__ ((format (printf, 1, 2))); #define DEBUG_TRACE(M, ...) \ { \ if (debug_dump) \ aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \ } #define DEBUG_TRACE_IF(C, M, ...) \ { \ if (debug_dump && (C)) \ aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \ } #else /* !DEBUG_AARCH64 */ #define DEBUG_TRACE(M, ...) ; #define DEBUG_TRACE_IF(C, M, ...) ; #endif /* DEBUG_AARCH64 */ extern const char *const aarch64_sve_pattern_array[32]; extern const char *const aarch64_sve_prfop_array[16]; #ifdef __cplusplus } #endif #endif /* OPCODE_AARCH64_H */