1/*	$NetBSD: ptrace.h,v 1.19 2021/03/06 08:08:19 rin Exp $	*/
 2
 3#ifndef _POWERPC_PTRACE_H
 4#define	_POWERPC_PTRACE_H
 5
 6#define	PT_STEP		(PT_FIRSTMACH + 0)
 7#define	PT_GETREGS	(PT_FIRSTMACH + 1)
 8#define	PT_SETREGS	(PT_FIRSTMACH + 2)
 9#define	PT_GETFPREGS	(PT_FIRSTMACH + 3)
10#define	PT_SETFPREGS	(PT_FIRSTMACH + 4)
11#define	PT_GETVECREGS	(PT_FIRSTMACH + 5)
12#define	PT_SETVECREGS	(PT_FIRSTMACH + 6)
13#define	PT_SETSTEP	(PT_FIRSTMACH + 7)
14#define	PT_CLEARSTEP	(PT_FIRSTMACH + 8)
15
16#define	PT_MACHDEP_STRINGS				\
17	"PT_STEP",					\
18	"PT_GETREGS",		"PT_SETREGS",		\
19	"PT_GETFPREGS",		"PT_SETFPREGS",		\
20	"PT_GETVECREGS",	"PT_SETVECREGS",	\
21	"PT_SETSTEP",		"PT_CLEARSTEP",
22
23#include <machine/reg.h>
24#define PTRACE_REG_PC(r)	(r)->pc
25#define PTRACE_REG_FP(r)	(r)->fixreg[31]
26#define PTRACE_REG_SET_PC(r, v)	(r)->pc = (v)
27#define PTRACE_REG_SP(r)	(r)->fixreg[1]
28#define PTRACE_REG_INTRV(r)	(r)->fixreg[3]
29
30#ifdef _KERNEL
31#ifdef _KERNEL_OPT
32#include "opt_altivec.h"
33#endif
34
35#if defined(ALTIVEC) || defined(PPC_HAVE_SPE)
36
37/* We have machine-dependent process tracing requests.  */
38#define __HAVE_PTRACE_MACHDEP
39
40#define	PTRACE_MACHDEP_REQUEST_CASES \
41	case PT_GETVECREGS: \
42	case PT_SETVECREGS:
43
44int ptrace_machdep_dorequest(struct lwp *, struct lwp **, int, void *, int);
45int process_machdep_dovecregs(struct lwp *, struct lwp *, struct uio *);
46int process_machdep_validvecregs(struct proc *);
47
48/* We have machine-dependent procfs nodes.  */
49#define __HAVE_PROCFS_MACHDEP
50
51#define	PROCFS_MACHDEP_NODE_TYPES \
52	Pmachdep_vecregs,		/* AltiVec register set */
53
54#define	PROCFS_MACHDEP_NODETYPE_CASES \
55	case Pmachdep_vecregs:
56
57#define	PROCFS_MACHDEP_PROTECT_CASES \
58	case Pmachdep_vecregs:
59
60#define	PROCFS_MACHDEP_NODETYPE_DEFNS \
61	{ DT_REG, N("vecregs"), Pmachdep_vecregs, \
62	  procfs_machdep_validvecregs },
63
64/* Functions used by procfs.  */
65struct mount;
66struct pfsnode;
67int procfs_machdep_dovecregs(struct lwp *, struct lwp *,
68	struct pfsnode *, struct uio *);
69int procfs_machdep_validvecregs(struct lwp *, struct mount *);
70
71#endif /* ALTIVEC || PPC_HAVE_SPE */
72
73#if defined(PPC_BOOKE) || defined(PPC_IBM4XX)
74int ppc_sstep(struct lwp *, int);
75#endif /* PPC_BOOKE || PPC_IBM4XX */
76#endif /* _KERNEL */
77
78#define PTRACE_ILLEGAL_ASM	__asm __volatile (".long 0" : : : "memory")
79
80#define PTRACE_BREAKPOINT	((const uint8_t[]) { 0x7f, 0xe0, 0x00, 0x08 })
81#define PTRACE_BREAKPOINT_ASM	__asm __volatile("trap")
82#define PTRACE_BREAKPOINT_SIZE	4
83
84#endif /* _POWERPC_PTRACE_H */