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Add PT_GETFPREGS, PT_SETFPREGS and process_{read,write}_fpregs.

This commit is contained in:
jonathan 1997-10-19 21:02:00 +00:00
parent c7f9237607
commit ed413accab
2 changed files with 57 additions and 4 deletions
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19
sys/arch/mips/include/ptrace.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: ptrace.h,v 1.6 1995/12/21 09:28:36 jonathan Exp $ */
/* $NetBSD: ptrace.h,v 1.7 1997/10/19 21:02:00 jonathan Exp $ */
/*
* Copyright (c) 1992, 1993
@ -40,11 +40,26 @@
*
*/
#ifndef _MIPS_PTRACE_H_
#define _MIPS_PTRACE_H_
/*#define PT_STEP (PT_FIRSTMACH + 0)*/
#define PT_GETREGS (PT_FIRSTMACH + 1)
#define PT_SETREGS (PT_FIRSTMACH + 2)
#ifdef notyet
#define PT_GETFPREGS (PT_FIRSTMACH + 3)
#define PT_SETFPREGS (PT_FIRSTMACH + 4)
/*
* Glue for gdb: map NetBSD register names to legacy ptrace register names
*/
#define GPR_BASE 0
#ifndef JB_PC
#define JB_PC 2 /* pc is at ((long *)jmp_buf)[2] */
#endif
#include <machine/reg.h> /* Historically in sys/ptrace.h */
#include <machine/regnum.h> /* real register names */
#endif /* _MIPS_PTRACE_H_ */

42
sys/arch/mips/mips/process_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: process_machdep.c,v 1.7 1997/07/19 09:54:35 jonathan Exp $ */
/* $NetBSD: process_machdep.c,v 1.8 1997/10/19 21:02:08 jonathan Exp $ */
/*
* Copyright (c) 1994 Adam Glass
@ -41,6 +41,9 @@
* Id: procfs_i386.c,v 4.1 1993/12/17 10:47:45 jsp Rel
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: process_machdep.c,v 1.8 1997/10/19 21:02:08 jonathan Exp $");
/*
* This file may seem a bit stylized, but that so that it's easier to port.
* Functions to be implemented here are:
@ -75,6 +78,9 @@
#include <machine/psl.h>
#include <machine/reg.h>
extern struct proc *fpcurproc; /* trap.c */
extern void savefpregs __P((struct proc *));
int
process_read_regs(p, regs)
@ -99,6 +105,39 @@ process_write_regs(p, regs)
return (0);
}
int
process_read_fpregs(p, regs)
struct proc *p;
struct fpreg *regs;
{
if (p->p_md.md_flags & MDP_FPUSED) {
if (p == fpcurproc)
savefpregs(p);
bcopy(&p->p_addr->u_pcb.pcb_fpregs, regs,
sizeof(struct fpreg));
}
else
bzero((caddr_t)regs, sizeof(struct fpreg));
return 0;
}
int
process_write_fpregs(p, regs)
struct proc *p;
struct fpreg *regs;
{
if ((p->p_md.md_flags & MDP_FPUSED) == 0) /* XXX */
return EINVAL;
if (p->p_md.md_flags & MDP_FPUSED) {
if (p == fpcurproc)
savefpregs(p);
}
bcopy(regs, &p->p_addr->u_pcb.pcb_fpregs, sizeof(struct fpreg));
return 0;
}
int
process_sstep(p, sstep)
struct proc *p;
@ -117,4 +156,3 @@ process_set_pc(p, addr)
p->p_md.md_regs[PC] = (int)addr;
return (0);
}