1/* $NetBSD: netbsd32_machdep.h,v 1.25 2019/11/27 09:16:58 rin Exp $ */
2
3#ifndef _MACHINE_NETBSD32_H_
4#define _MACHINE_NETBSD32_H_
5
6#include <sys/ucontext.h>
7#include <compat/sys/ucontext.h>
8#include <compat/sys/siginfo.h>
9
10#include <x86/fpu.h>
11
12/*
13 * i386 ptrace constants
14 * Please keep in sync with sys/arch/i386/include/ptrace.h.
15 */
16#define PT32_STEP (PT_FIRSTMACH + 0)
17#define PT32_GETREGS (PT_FIRSTMACH + 1)
18#define PT32_SETREGS (PT_FIRSTMACH + 2)
19#define PT32_GETFPREGS (PT_FIRSTMACH + 3)
20#define PT32_SETFPREGS (PT_FIRSTMACH + 4)
21#define PT32_GETXMMREGS (PT_FIRSTMACH + 5)
22#define PT32_SETXMMREGS (PT_FIRSTMACH + 6)
23#define PT32_GETDBREGS (PT_FIRSTMACH + 7)
24#define PT32_SETDBREGS (PT_FIRSTMACH + 8)
25#define PT32_SETSTEP (PT_FIRSTMACH + 9)
26#define PT32_CLEARSTEP (PT_FIRSTMACH + 10)
27#define PT32_GETXSTATE (PT_FIRSTMACH + 11)
28#define PT32_SETXSTATE (PT_FIRSTMACH + 12)
29
30#define NETBSD32_POINTER_TYPE uint32_t
31typedef struct { NETBSD32_POINTER_TYPE i32; } netbsd32_pointer_t;
32
33/* i386 has 32bit aligned 64bit integers */
34#define NETBSD32_INT64_ALIGN __attribute__((__aligned__(4)))
35
36typedef netbsd32_pointer_t netbsd32_sigcontextp_t;
37
38struct netbsd32_sigcontext13 {
39 uint32_t sc_gs;
40 uint32_t sc_fs;
41 uint32_t sc_es;
42 uint32_t sc_ds;
43 uint32_t sc_edi;
44 uint32_t sc_esi;
45 uint32_t sc_ebp;
46 uint32_t sc_ebx;
47 uint32_t sc_edx;
48 uint32_t sc_ecx;
49 uint32_t sc_eax;
50 /* XXX */
51 uint32_t sc_eip;
52 uint32_t sc_cs;
53 uint32_t sc_eflags;
54 uint32_t sc_esp;
55 uint32_t sc_ss;
56
57 uint32_t sc_onstack; /* sigstack state to restore */
58 uint32_t sc_mask; /* signal mask to restore (old style) */
59
60 uint32_t sc_trapno; /* XXX should be above */
61 uint32_t sc_err;
62};
63
64struct netbsd32_sigcontext {
65 uint32_t sc_gs;
66 uint32_t sc_fs;
67 uint32_t sc_es;
68 uint32_t sc_ds;
69 uint32_t sc_edi;
70 uint32_t sc_esi;
71 uint32_t sc_ebp;
72 uint32_t sc_ebx;
73 uint32_t sc_edx;
74 uint32_t sc_ecx;
75 uint32_t sc_eax;
76 /* XXX */
77 uint32_t sc_eip;
78 uint32_t sc_cs;
79 uint32_t sc_eflags;
80 uint32_t sc_esp;
81 uint32_t sc_ss;
82
83 uint32_t sc_onstack; /* sigstack state to restore */
84 uint32_t __sc_mask13; /* signal mask to restore (old style) */
85
86 uint32_t sc_trapno; /* XXX should be above */
87 uint32_t sc_err;
88
89 sigset_t sc_mask; /* signal mask to restore (new style) */
90};
91
92#define sc_sp sc_esp
93#define sc_fp sc_ebp
94#define sc_pc sc_eip
95#define sc_ps sc_eflags
96
97struct netbsd32_sigframe_sigcontext {
98 uint32_t sf_ra;
99 int32_t sf_signum;
100 int32_t sf_code;
101 uint32_t sf_scp;
102 struct netbsd32_sigcontext sf_sc;
103};
104
105struct netbsd32_sigframe_siginfo {
106 uint32_t sf_ra;
107 int32_t sf_signum;
108 uint32_t sf_sip;
109 uint32_t sf_ucp;
110 siginfo32_t sf_si;
111 ucontext32_t sf_uc;
112};
113
114struct reg32 {
115 int r_eax;
116 int r_ecx;
117 int r_edx;
118 int r_ebx;
119 int r_esp;
120 int r_ebp;
121 int r_esi;
122 int r_edi;
123 int r_eip;
124 int r_eflags;
125 int r_cs;
126 int r_ss;
127 int r_ds;
128 int r_es;
129 int r_fs;
130 int r_gs;
131};
132
133struct fpreg32 {
134 char __data[108];
135};
136
137struct dbreg32 {
138 int dr[8];
139};
140
141struct xmmregs32 {
142 struct fxsave fxstate;
143};
144__CTASSERT(sizeof(struct xmmregs32) == 512);
145
146struct x86_get_ldt_args32 {
147 int32_t start;
148 uint32_t desc;
149 int32_t num;
150};
151
152struct x86_set_ldt_args32 {
153 int32_t start;
154 uint32_t desc;
155 int32_t num;
156};
157
158struct mtrr32 {
159 uint64_t base;
160 uint64_t len;
161 uint8_t type;
162 uint8_t __pad0[3];
163 int flags;
164 uint32_t owner;
165} __packed;
166
167struct x86_64_get_mtrr_args32 {
168 uint32_t mtrrp;
169 uint32_t n;
170};
171
172struct x86_64_set_mtrr_args32 {
173 uint32_t mtrrp;
174 uint32_t n;
175};
176
177#define NETBSD32_MID_MACHINE MID_I386
178
179/* Translate ptrace() PT_* request from 32-bit userland to kernel. */
180int netbsd32_ptrace_translate_request(int);
181
182int netbsd32_process_read_regs(struct lwp *, struct reg32 *);
183int netbsd32_process_read_fpregs(struct lwp *, struct fpreg32 *, size_t *);
184int netbsd32_process_read_dbregs(struct lwp *, struct dbreg32 *, size_t *);
185
186int netbsd32_process_write_regs(struct lwp *, const struct reg32 *);
187int netbsd32_process_write_fpregs(struct lwp *, const struct fpreg32 *, size_t);
188int netbsd32_process_write_dbregs(struct lwp *, const struct dbreg32 *, size_t);
189
190#endif /* _MACHINE_NETBSD32_H_ */