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 */