5a39cbaf69
a PCB from a trapframe for purposes of unwinding the stack. The PCB is used as the thread context and all but the thread that entered the debugger has a valid PCB. This function can also be used to create a context for the threads running on the CPUs that have been stopped when the debugger got entered. This however is not done at the time of this commit.
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*-
|
|
* Copyright (c) 2001 Jake Burkholder.
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_PCB_H_
|
|
#define _MACHINE_PCB_H_
|
|
|
|
#include <machine/frame.h>
|
|
|
|
#define MAXWIN 8
|
|
|
|
#define PCB_FEF (1 << 0)
|
|
|
|
/* NOTE: pcb_ufp must be aligned on a 64 byte boundary. */
|
|
struct pcb {
|
|
struct rwindow pcb_rw[MAXWIN];
|
|
uint32_t pcb_kfp[64];
|
|
uint32_t pcb_ufp[64];
|
|
uint64_t pcb_rwsp[MAXWIN];
|
|
uint64_t pcb_flags;
|
|
uint64_t pcb_nsaved;
|
|
uint64_t pcb_pc;
|
|
uint64_t pcb_sp;
|
|
uint64_t pcb_pad[4];
|
|
} __aligned(64);
|
|
|
|
#ifdef _KERNEL
|
|
void makectx(struct trapframe *, struct pcb *);
|
|
int savectx(struct pcb *pcb);
|
|
#endif
|
|
|
|
#endif /* !_MACHINE_PCB_H_ */
|