dc4f0a9e11
from stack frame. Change the trap() code to use newly created function instead of explicit regs assignment.
173 lines
5.5 KiB
C
173 lines
5.5 KiB
C
/*-
|
|
* 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.
|
|
* 4. 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.
|
|
*
|
|
* from: @(#)reg.h 5.5 (Berkeley) 1/18/91
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_REG_H_
|
|
#define _MACHINE_REG_H_
|
|
|
|
/*
|
|
* 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)
|
|
|
|
/*
|
|
* Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
|
|
*/
|
|
struct reg {
|
|
unsigned int r_fs;
|
|
unsigned int r_es;
|
|
unsigned int r_ds;
|
|
unsigned int r_edi;
|
|
unsigned int r_esi;
|
|
unsigned int r_ebp;
|
|
unsigned int r_isp;
|
|
unsigned int r_ebx;
|
|
unsigned int r_edx;
|
|
unsigned int r_ecx;
|
|
unsigned int r_eax;
|
|
unsigned int r_trapno;
|
|
unsigned int r_err;
|
|
unsigned int r_eip;
|
|
unsigned int r_cs;
|
|
unsigned int r_eflags;
|
|
unsigned int r_esp;
|
|
unsigned int r_ss;
|
|
unsigned int r_gs;
|
|
};
|
|
|
|
/*
|
|
* Register set accessible via /proc/$pid/fpregs.
|
|
*/
|
|
struct fpreg {
|
|
/*
|
|
* 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.
|
|
*/
|
|
unsigned long fpr_env[7];
|
|
unsigned char fpr_acc[8][10];
|
|
unsigned long fpr_ex_sw;
|
|
unsigned char fpr_pad[64];
|
|
};
|
|
|
|
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.
|
|
*/
|
|
unsigned long xmm_env[8];
|
|
unsigned char xmm_acc[8][16];
|
|
unsigned char xmm_reg[8][16];
|
|
unsigned char xmm_pad[224];
|
|
};
|
|
|
|
/*
|
|
* Register set accessible via /proc/$pid/dbregs.
|
|
*/
|
|
struct dbreg {
|
|
unsigned int dr[8]; /* debug registers */
|
|
/* Index 0-3: debug address registers */
|
|
/* Index 4-5: reserved */
|
|
/* Index 6: debug status */
|
|
/* Index 7: debug control */
|
|
};
|
|
|
|
#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_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) (0xf << ((i) * 4 + 16) | 0x3 << (i) * 2)
|
|
#define DBREG_DR7_SET(i, len, access, enable) \
|
|
(((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 */
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* XXX these interfaces are MI, so they should be declared in a MI place.
|
|
*/
|
|
int fill_regs(struct thread *, struct reg *);
|
|
int fill_frame_regs(struct trapframe *, struct reg *);
|
|
int set_regs(struct thread *, struct reg *);
|
|
int fill_fpregs(struct thread *, struct fpreg *);
|
|
int set_fpregs(struct thread *, struct fpreg *);
|
|
int fill_dbregs(struct thread *, struct dbreg *);
|
|
int set_dbregs(struct thread *, struct dbreg *);
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_REG_H_ */
|