bb56f27799
same size. Add some fields that previously overlapped with something else or were missing. - Make struct regs and struct mcontext (minus floating point) the same as struct trapframe so converting between them is easy (null). - Add space for saving floating point state to struct mcontext. This requires that it be 64 byte aligned. - Add assertions that none of these structures change size, as they are part of the ABI. - Remove some dead code in sendsig(). - Save and restore %gsr in struct trapframe. Remember to restore %fsr. - Add some comments to exception.S.
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)reg.h 5.5 (Berkeley) 1/18/91
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* from: FreeBSD: src/sys/i386/include/reg.h,v 1.23 2000/09/21
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* $FreeBSD$
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*/
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#ifndef _MACHINE_REG_H_
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#define _MACHINE_REG_H_
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/*
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* Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
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*
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* NOTE: DO NOT CHANGE THESE STRUCTURES. The offsets of the fields are
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* hardcoded in gdb. Changing them and recompiling doesn't help, the
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* constants in nm-fbsd.h must also be updated.
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*/
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struct reg32 {
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uint32_t r_global[8];
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uint32_t r_out[8];
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uint32_t r_npc;
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uint32_t r_pc;
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uint32_t r_psr;
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uint32_t r_wim;
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uint32_t r_pad[4];
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};
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struct reg {
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uint64_t r_global[8];
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uint64_t r_out[8];
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uint64_t r_fprs;
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uint64_t r_fsr;
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uint64_t r_gsr;
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uint64_t r_level;
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uint64_t r_pil;
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uint64_t r_sfar;
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uint64_t r_sfsr;
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uint64_t r_tar;
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uint64_t r_tnpc;
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uint64_t r_tpc;
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uint64_t r_tstate;
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uint64_t r_type;
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uint64_t r_y;
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uint64_t r_wstate;
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uint64_t r_pad[2];
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};
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/*
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* Register set accessible via /proc/$pid/fpregs.
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*/
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struct fpreg32 {
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uint32_t fr_regs[32];
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uint32_t fr_fsr;
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};
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struct fpreg {
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uint32_t fr_regs[64]; /* our view is 64 32-bit registers */
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int64_t fr_fsr; /* %fsr */
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int32_t fr_gsr; /* %gsr */
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int32_t fr_pad[1];
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};
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/*
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* Register set accessible via /proc/$pid/dbregs.
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*/
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struct dbreg {
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int dummy;
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};
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#ifdef _KERNEL
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/*
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* XXX these interfaces are MI, so they should be declared in a MI place.
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*/
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int fill_regs(struct thread *, struct reg *);
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int set_regs(struct thread *, struct reg *);
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int fill_fpregs(struct thread *, struct fpreg *);
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int set_fpregs(struct thread *, struct fpreg *);
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int fill_dbregs(struct thread *, struct dbreg *);
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int set_dbregs(struct thread *, struct dbreg *);
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#endif
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#endif /* !_MACHINE_REG_H_ */
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