/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2003 Peter Wemm. * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _MACHINE_REG_H_ #define _MACHINE_REG_H_ #include <sys/_types.h> #ifdef __i386__ /* * Indices for registers in `struct trapframe' and `struct regs'. * * This interface is deprecated. In the kernel, it is only used in FPU * emulators to convert from register numbers encoded in instructions to * register values. Everything else just accesses the relevant struct * members. In userland, debuggers tend to abuse this interface since * they don't understand that `struct regs' is a struct. I hope they have * stopped accessing the registers in the trap frame via PT_{READ,WRITE}_U * and we can stop supporting the user area soon. */ #define tFS (0) #define tES (1) #define tDS (2) #define tEDI (3) #define tESI (4) #define tEBP (5) #define tISP (6) #define tEBX (7) #define tEDX (8) #define tECX (9) #define tEAX (10) #define tERR (12) #define tEIP (13) #define tCS (14) #define tEFLAGS (15) #define tESP (16) #define tSS (17) /* * Indices for registers in `struct regs' only. * * Some registers live in the pcb and are only in an "array" with the * other registers in application interfaces that copy all the registers * to or from a `struct regs'. */ #define tGS (18) #endif /* __i386__ */ /* Rename the structs below depending on the machine architecture. */ #ifdef __i386__ #define __reg32 reg #define __fpreg32 fpreg #define __dbreg32 dbreg #define __segbasereg32 segbasereg #else #define __reg32 reg32 #define __reg64 reg #define __fpreg32 fpreg32 #define __fpreg64 fpreg #define __dbreg32 dbreg32 #define __dbreg64 dbreg #define __segbasereg32 segbasereg32 #define __segbasereg64 segbasereg #define __HAVE_REG32 #endif /* * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS. */ struct __reg32 { __uint32_t r_fs; __uint32_t r_es; __uint32_t r_ds; __uint32_t r_edi; __uint32_t r_esi; __uint32_t r_ebp; __uint32_t r_isp; __uint32_t r_ebx; __uint32_t r_edx; __uint32_t r_ecx; __uint32_t r_eax; __uint32_t r_trapno; __uint32_t r_err; __uint32_t r_eip; __uint32_t r_cs; __uint32_t r_eflags; __uint32_t r_esp; __uint32_t r_ss; __uint32_t r_gs; }; struct __reg64 { __int64_t r_r15; __int64_t r_r14; __int64_t r_r13; __int64_t r_r12; __int64_t r_r11; __int64_t r_r10; __int64_t r_r9; __int64_t r_r8; __int64_t r_rdi; __int64_t r_rsi; __int64_t r_rbp; __int64_t r_rbx; __int64_t r_rdx; __int64_t r_rcx; __int64_t r_rax; __uint32_t r_trapno; __uint16_t r_fs; __uint16_t r_gs; __uint32_t r_err; __uint16_t r_es; __uint16_t r_ds; __int64_t r_rip; __int64_t r_cs; __int64_t r_rflags; __int64_t r_rsp; __int64_t r_ss; }; /* * Register set accessible via /proc/$pid/fpregs. * * XXX should get struct from fpu.h. Here we give a slightly * simplified struct. This may be too much detail. Perhaps * an array of unsigned longs is best. */ struct __fpreg32 { __uint32_t fpr_env[7]; __uint8_t fpr_acc[8][10]; __uint32_t fpr_ex_sw; __uint8_t fpr_pad[64]; }; struct __fpreg64 { __uint64_t fpr_env[4]; __uint8_t fpr_acc[8][16]; __uint8_t fpr_xacc[16][16]; __uint64_t fpr_spare[12]; }; /* * Register set accessible via PT_GETXMMREGS (i386). */ struct xmmreg { /* * XXX should get struct from npx.h. Here we give a slightly * simplified struct. This may be too much detail. Perhaps * an array of unsigned longs is best. */ __uint32_t xmm_env[8]; __uint8_t xmm_acc[8][16]; __uint8_t xmm_reg[8][16]; __uint8_t xmm_pad[224]; }; /* * Register set accessible via /proc/$pid/dbregs. */ struct __dbreg32 { __uint32_t dr[8]; /* debug registers */ /* Index 0-3: debug address registers */ /* Index 4-5: reserved */ /* Index 6: debug status */ /* Index 7: debug control */ }; struct __dbreg64 { __uint64_t dr[16]; /* debug registers */ /* Index 0-3: debug address registers */ /* Index 4-5: reserved */ /* Index 6: debug status */ /* Index 7: debug control */ /* Index 8-15: reserved */ }; #define DBREG_DR6_RESERVED1 0xffff0ff0 #define DBREG_DR6_BMASK 0x000f #define DBREG_DR6_B(i) (1 << (i)) #define DBREG_DR6_BD 0x2000 #define DBREG_DR6_BS 0x4000 #define DBREG_DR6_BT 0x8000 #define DBREG_DR7_RESERVED1 0x0400 #define DBREG_DR7_LOCAL_ENABLE 0x01 #define DBREG_DR7_GLOBAL_ENABLE 0x02 #define DBREG_DR7_LEN_1 0x00 /* 1 byte length */ #define DBREG_DR7_LEN_2 0x01 #define DBREG_DR7_LEN_4 0x03 #define DBREG_DR7_LEN_8 0x02 #define DBREG_DR7_EXEC 0x00 /* break on execute */ #define DBREG_DR7_WRONLY 0x01 /* break on write */ #define DBREG_DR7_RDWR 0x03 /* break on read or write */ #define DBREG_DR7_MASK(i) \ ((__u_register_t)(0xf) << ((i) * 4 + 16) | 0x3 << (i) * 2) #define DBREG_DR7_SET(i, len, access, enable) \ ((__u_register_t)((len) << 2 | (access)) << ((i) * 4 + 16) | \ (enable) << (i) * 2) #define DBREG_DR7_GD 0x2000 #define DBREG_DR7_ENABLED(d, i) (((d) & 0x3 << (i) * 2) != 0) #define DBREG_DR7_ACCESS(d, i) ((d) >> ((i) * 4 + 16) & 0x3) #define DBREG_DR7_LEN(d, i) ((d) >> ((i) * 4 + 18) & 0x3) #define DBREG_DRX(d,x) ((d)->dr[(x)]) /* reference dr0 - dr7 by register number */ /* * Register set accessible via NT_X86_SEGBASES. */ struct __segbasereg32 { __uint32_t r_fsbase; __uint32_t r_gsbase; }; struct __segbasereg64 { __uint64_t r_fsbase; __uint64_t r_gsbase; }; #undef __reg32 #undef __reg64 #undef __fpreg32 #undef __fpreg64 #undef __dbreg32 #undef __dbreg64 #undef __segbasereg32 #undef __segbasereg64 #ifdef _KERNEL /* * XXX these interfaces are MI, so they should be declared in a MI place. */ int fill_frame_regs(struct trapframe *, struct reg *); #endif #endif /* !_MACHINE_REG_H_ */
