/* SPDX-License-Identifier: GPL-2.0 */ /* * Generate .byte code for some instructions not supported by old * binutils. */ #ifndef X86_ASM_INST_H #define X86_ASM_INST_H #ifdef __ASSEMBLY__ #define REG_NUM_INVALID 100 #define REG_TYPE_R32 0 #define REG_TYPE_R64 1 #define REG_TYPE_INVALID 100 .macro R32_NUM opd r32 \opd = REG_NUM_INVALID .ifc \r32,%eax \opd = 0 .endif .ifc \r32,%ecx \opd = 1 .endif .ifc \r32,%edx \opd = 2 .endif .ifc \r32,%ebx \opd = 3 .endif .ifc \r32,%esp \opd = 4 .endif .ifc \r32,%ebp \opd = 5 .endif .ifc \r32,%esi \opd = 6 .endif .ifc \r32,%edi \opd = 7 .endif #ifdef CONFIG_X86_64 .ifc \r32,%r8d \opd = 8 .endif .ifc \r32,%r9d \opd = 9 .endif .ifc \r32,%r10d \opd = 10 .endif .ifc \r32,%r11d \opd = 11 .endif .ifc \r32,%r12d \opd = 12 .endif .ifc \r32,%r13d \opd = 13 .endif .ifc \r32,%r14d \opd = 14 .endif .ifc \r32,%r15d \opd = 15 .endif #endif .endm .macro R64_NUM opd r64 \opd = REG_NUM_INVALID #ifdef CONFIG_X86_64 .ifc \r64,%rax \opd = 0 .endif .ifc \r64,%rcx \opd = 1 .endif .ifc \r64,%rdx \opd = 2 .endif .ifc \r64,%rbx \opd = 3 .endif .ifc \r64,%rsp \opd = 4 .endif .ifc \r64,%rbp \opd = 5 .endif .ifc \r64,%rsi \opd = 6 .endif .ifc \r64,%rdi \opd = 7 .endif .ifc \r64,%r8 \opd = 8 .endif .ifc \r64,%r9 \opd = 9 .endif .ifc \r64,%r10 \opd = 10 .endif .ifc \r64,%r11 \opd = 11 .endif .ifc \r64,%r12 \opd = 12 .endif .ifc \r64,%r13 \opd = 13 .endif .ifc \r64,%r14 \opd = 14 .endif .ifc \r64,%r15 \opd = 15 .endif #endif .endm .macro REG_TYPE type reg R32_NUM reg_type_r32 \reg R64_NUM reg_type_r64 \reg .if reg_type_r64 <> REG_NUM_INVALID \type = REG_TYPE_R64 .elseif reg_type_r32 <> REG_NUM_INVALID \type = REG_TYPE_R32 .else \type = REG_TYPE_INVALID .endif .endm .macro PFX_REX opd1 opd2 W=0 .if ((\opd1 | \opd2) & 8) || \W .byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1) | (\W << 3) .endif .endm .macro MODRM mod opd1 opd2 .byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3) .endm .macro RDPID opd REG_TYPE rdpid_opd_type \opd .if rdpid_opd_type == REG_TYPE_R64 R64_NUM rdpid_opd \opd .else R32_NUM rdpid_opd \opd .endif .byte 0xf3 .if rdpid_opd > 7 PFX_REX rdpid_opd 0 .endif .byte 0x0f, 0xc7 MODRM 0xc0 rdpid_opd 0x7 .endm #endif #endif