netbsd32_machdep.h revision 1.22.14.2 1 /* $NetBSD: netbsd32_machdep.h,v 1.22.14.2 2020/04/08 14:07:26 martin 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
28 #define NETBSD32_POINTER_TYPE uint32_t
29 typedef struct { NETBSD32_POINTER_TYPE i32; } netbsd32_pointer_t;
30
31 /* i386 has 32bit aligned 64bit integers */
32 #define NETBSD32_INT64_ALIGN __attribute__((__aligned__(4)))
33
34 typedef netbsd32_pointer_t netbsd32_sigcontextp_t;
35
36 struct netbsd32_sigcontext13 {
37 uint32_t sc_gs;
38 uint32_t sc_fs;
39 uint32_t sc_es;
40 uint32_t sc_ds;
41 uint32_t sc_edi;
42 uint32_t sc_esi;
43 uint32_t sc_ebp;
44 uint32_t sc_ebx;
45 uint32_t sc_edx;
46 uint32_t sc_ecx;
47 uint32_t sc_eax;
48 /* XXX */
49 uint32_t sc_eip;
50 uint32_t sc_cs;
51 uint32_t sc_eflags;
52 uint32_t sc_esp;
53 uint32_t sc_ss;
54
55 uint32_t sc_onstack; /* sigstack state to restore */
56 uint32_t sc_mask; /* signal mask to restore (old style) */
57
58 uint32_t sc_trapno; /* XXX should be above */
59 uint32_t sc_err;
60 };
61
62 struct netbsd32_sigcontext {
63 uint32_t sc_gs;
64 uint32_t sc_fs;
65 uint32_t sc_es;
66 uint32_t sc_ds;
67 uint32_t sc_edi;
68 uint32_t sc_esi;
69 uint32_t sc_ebp;
70 uint32_t sc_ebx;
71 uint32_t sc_edx;
72 uint32_t sc_ecx;
73 uint32_t sc_eax;
74 /* XXX */
75 uint32_t sc_eip;
76 uint32_t sc_cs;
77 uint32_t sc_eflags;
78 uint32_t sc_esp;
79 uint32_t sc_ss;
80
81 uint32_t sc_onstack; /* sigstack state to restore */
82 uint32_t __sc_mask13; /* signal mask to restore (old style) */
83
84 uint32_t sc_trapno; /* XXX should be above */
85 uint32_t sc_err;
86
87 sigset_t sc_mask; /* signal mask to restore (new style) */
88 };
89
90 #define sc_sp sc_esp
91 #define sc_fp sc_ebp
92 #define sc_pc sc_eip
93 #define sc_ps sc_eflags
94
95 struct netbsd32_sigframe_sigcontext {
96 uint32_t sf_ra;
97 int32_t sf_signum;
98 int32_t sf_code;
99 uint32_t sf_scp;
100 struct netbsd32_sigcontext sf_sc;
101 };
102
103 struct netbsd32_sigframe_siginfo {
104 uint32_t sf_ra;
105 int32_t sf_signum;
106 uint32_t sf_sip;
107 uint32_t sf_ucp;
108 siginfo32_t sf_si;
109 ucontext32_t sf_uc;
110 };
111
112 struct reg32 {
113 int r_eax;
114 int r_ecx;
115 int r_edx;
116 int r_ebx;
117 int r_esp;
118 int r_ebp;
119 int r_esi;
120 int r_edi;
121 int r_eip;
122 int r_eflags;
123 int r_cs;
124 int r_ss;
125 int r_ds;
126 int r_es;
127 int r_fs;
128 int r_gs;
129 };
130
131 struct fpreg32 {
132 char __data[108];
133 };
134
135 struct dbreg32 {
136 int dr[8];
137 };
138
139 struct xmmregs32 {
140 struct fxsave fxstate;
141 };
142 __CTASSERT(sizeof(struct xmmregs32) == 512);
143
144 struct x86_get_ldt_args32 {
145 int32_t start;
146 uint32_t desc;
147 int32_t num;
148 };
149
150 struct x86_set_ldt_args32 {
151 int32_t start;
152 uint32_t desc;
153 int32_t num;
154 };
155
156 struct mtrr32 {
157 uint64_t base;
158 uint64_t len;
159 uint8_t type;
160 uint8_t __pad0[3];
161 int flags;
162 uint32_t owner;
163 } __packed;
164
165 struct x86_64_get_mtrr_args32 {
166 uint32_t mtrrp;
167 uint32_t n;
168 };
169
170 struct x86_64_set_mtrr_args32 {
171 uint32_t mtrrp;
172 uint32_t n;
173 };
174
175 #define NETBSD32_MID_MACHINE MID_I386
176
177 /* Translate ptrace() PT_* request from 32-bit userland to kernel. */
178 int netbsd32_ptrace_translate_request(int);
179
180 int netbsd32_process_read_regs(struct lwp *, struct reg32 *);
181 int netbsd32_process_read_fpregs(struct lwp *, struct fpreg32 *, size_t *);
182 int netbsd32_process_read_dbregs(struct lwp *, struct dbreg32 *, size_t *);
183
184 int netbsd32_process_write_regs(struct lwp *, const struct reg32 *);
185 int netbsd32_process_write_fpregs(struct lwp *, const struct fpreg32 *, size_t);
186 int netbsd32_process_write_dbregs(struct lwp *, const struct dbreg32 *, size_t);
187
188 #endif /* _MACHINE_NETBSD32_H_ */
189