87e19994e1
the processor and debug state registers. A flag has been added to the pcb to tell us when to enable single stepping for a given thread. Reviewed by: kib Sponsored by: ABT Systems Ltd Differential Revision: https://reviews.freebsd.org/D4730
69 lines
2.2 KiB
C
69 lines
2.2 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_
|
|
|
|
#ifndef LOCORE
|
|
|
|
struct trapframe;
|
|
|
|
#define PCB_LR 30
|
|
struct pcb {
|
|
uint64_t pcb_x[31];
|
|
uint64_t pcb_pc;
|
|
/* These two need to be in order as we access them together */
|
|
uint64_t pcb_sp;
|
|
uint64_t pcb_tpidr_el0;
|
|
vm_offset_t pcb_l1addr;
|
|
|
|
/* Fault handler, the error value is passed in x0 */
|
|
vm_offset_t pcb_onfault;
|
|
|
|
u_int pcb_flags;
|
|
#define PCB_SINGLE_STEP_SHIFT 0
|
|
#define PCB_SINGLE_STEP (1 << PCB_SINGLE_STEP_SHIFT)
|
|
|
|
/* Place last to simplify the asm to access the rest if the struct */
|
|
__uint128_t pcb_vfp[32];
|
|
uint32_t pcb_fpcr;
|
|
uint32_t pcb_fpsr;
|
|
int pcb_fpflags;
|
|
#define PCB_FP_STARTED 0x01
|
|
u_int pcb_vfpcpu; /* Last cpu this thread ran VFP code */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
void makectx(struct trapframe *tf, struct pcb *pcb);
|
|
int savectx(struct pcb *pcb) __returns_twice;
|
|
#endif
|
|
|
|
#endif /* !LOCORE */
|
|
|
|
#endif /* !_MACHINE_PCB_H_ */
|