/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2015 Nexenta Systems, Inc. All rights reserved. * * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved. */ /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ /* All Rights Reserved */ #ifndef _SYS_REGSET_H #define _SYS_REGSET_H #include <sys/feature_tests.h> #if !defined(_ASM) #include <sys/types.h> #endif #include <sys/mcontext.h> #ifdef __cplusplus extern "C" { #endif /* * The names and offsets defined here should be specified by the * AMD64 ABI suppl. * * We make fsbase and gsbase part of the lwp context (since they're * the only way to access the full 64-bit address range via the segment * registers) and thus belong here too. However we treat them as * read-only; if %fs or %gs are updated, the results of the descriptor * table lookup that those updates implicitly cause will be reflected * in the corresponding fsbase and/or gsbase values the next time the * context can be inspected. However it is NOT possible to override * the fsbase/gsbase settings via this interface. * * Direct modification of the base registers (thus overriding the * descriptor table base address) can be achieved with _lwp_setprivate. */ #define REG_GSBASE 27 #define REG_FSBASE 26 #define REG_DS 25 #define REG_ES 24 #define REG_GS 23 #define REG_FS 22 #define REG_SS 21 #define REG_RSP 20 #define REG_RFL 19 #define REG_CS 18 #define REG_RIP 17 #define REG_ERR 16 #define REG_TRAPNO 15 #define REG_RAX 14 #define REG_RCX 13 #define REG_RDX 12 #define REG_RBX 11 #define REG_RBP 10 #define REG_RSI 9 #define REG_RDI 8 #define REG_R8 7 #define REG_R9 6 #define REG_R10 5 #define REG_R11 4 #define REG_R12 3 #define REG_R13 2 #define REG_R14 1 #define REG_R15 0 /* * The names and offsets defined here are specified by i386 ABI suppl. */ #define SS 18 /* only stored on a privilege transition */ #define UESP 17 /* only stored on a privilege transition */ #define EFL 16 #define CS 15 #define EIP 14 #define ERR 13 #define TRAPNO 12 #define EAX 11 #define ECX 10 #define EDX 9 #define EBX 8 #define ESP 7 #define EBP 6 #define ESI 5 #define EDI 4 #define DS 3 #define ES 2 #define FS 1 #define GS 0 /* aliases for portability */ #if defined(__amd64) #define REG_PC REG_RIP #define REG_FP REG_RBP #define REG_SP REG_RSP #define REG_PS REG_RFL #define REG_R0 REG_RAX #define REG_R1 REG_RDX #else /* __i386 */ #define REG_PC EIP #define REG_FP EBP #define REG_SP UESP #define REG_PS EFL #define REG_R0 EAX #define REG_R1 EDX #endif /* __i386 */ #define NGREG _NGREG #if !defined(_ASM) #ifdef __i386 /* * (This structure definition is specified in the i386 ABI supplement) * It's likely we can just get rid of the struct __old_fpu or maybe * move it to $SRC/uts/intel/os/fpu.c which appears to be the * only place that uses it. See: www.illumos.org/issues/6284 */ typedef struct __old_fpu { union { struct __old_fpchip_state /* fp extension state */ { int state[27]; /* 287/387 saved state */ int status; /* status word saved at */ /* exception */ } fpchip_state; struct __old_fp_emul_space /* for emulator(s) */ { char fp_emul[246]; char fp_epad[2]; } fp_emul_space; int f_fpregs[62]; /* union of the above */ } fp_reg_set; long f_wregs[33]; /* saved weitek state */ } __old_fpregset_t; #endif /* __i386 */ #if defined(__amd64) #define _NDEBUGREG 16 #else #define _NDEBUGREG 8 #endif typedef struct dbregset { unsigned long debugreg[_NDEBUGREG]; } dbregset_t; #endif /* _ASM */ /* * The version of privregs.h that is used on implementations that run on * processors that support the AMD64 instruction set is deliberately not * imported here. * * The amd64 'struct regs' definition may -not- compatible with either * 32-bit or 64-bit core file contents, nor with the ucontext. As a result, * the 'regs' structure cannot be used portably by applications, and should * only be used by the kernel implementation. * * The inclusion of the i386 version of privregs.h allows for some limited * source compatibility with 32-bit applications who expect to use * 'struct regs' to match the context of a 32-bit core file, or a ucontext_t. * * Note that the ucontext_t actually describes the general register in terms * of the gregset_t data type, as described in this file. Note also * that the core file content is defined by core(5) in terms of data types * defined by procfs -- see proc(5). */ #if defined(__i386) && \ (!defined(_KERNEL) && !defined(_XPG4_2) || defined(__EXTENSIONS__)) #include <sys/privregs.h> #endif /* __i386 (!_KERNEL && !_XPG4_2 || __EXTENSIONS__) */ #ifdef __cplusplus } #endif #endif /* _SYS_REGSET_H */
