1 /*
2  *  FreeBSD i386 register structures
3  *
4  *  Copyright (c) 2015 Stacey Son
5  *  All rights reserved.
6  *
7  *  This program is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License as published by
9  *  the Free Software Foundation; either version 2 of the License, or
10  *  (at your option) any later version.
11  *
12  *  This program is distributed in the hope that it will be useful,
13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *  GNU General Public License for more details.
16  *
17  *  You should have received a copy of the GNU General Public License
18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #ifndef TARGET_ARCH_REG_H
22 #define TARGET_ARCH_REG_H
23 
24 /* See sys/i386/include/reg.h */
25 typedef struct target_reg {
26     uint32_t        r_fs;
27     uint32_t        r_es;
28     uint32_t        r_ds;
29     uint32_t        r_edi;
30     uint32_t        r_esi;
31     uint32_t        r_ebp;
32     uint32_t        r_isp;
33     uint32_t        r_ebx;
34     uint32_t        r_edx;
35     uint32_t        r_ecx;
36     uint32_t        r_eax;
37     uint32_t        r_trapno;
38     uint32_t        r_err;
39     uint32_t        r_eip;
40     uint32_t        r_cs;
41     uint32_t        r_eflags;
42     uint32_t        r_esp;
43     uint32_t        r_ss;
44     uint32_t        r_gs;
45 } target_reg_t;
46 
47 typedef struct target_fpreg {
48     uint32_t        fpr_env[7];
49     uint8_t         fpr_acc[8][10];
50     uint32_t        fpr_ex_sw;
51     uint8_t         fpr_pad[64];
52 } target_fpreg_t;
53 
54 static inline void target_copy_regs(target_reg_t *regs, const CPUX86State *env)
55 {
56 
57     regs->r_fs = env->segs[R_FS].selector & 0xffff;
58     regs->r_es = env->segs[R_ES].selector & 0xffff;
59     regs->r_ds = env->segs[R_DS].selector & 0xffff;
60 
61     regs->r_edi = env->regs[R_EDI];
62     regs->r_esi = env->regs[R_ESI];
63     regs->r_ebp = env->regs[R_EBP];
64     /* regs->r_isp = env->regs[R_ISP]; XXX */
65     regs->r_ebx = env->regs[R_EBX];
66     regs->r_edx = env->regs[R_EDX];
67     regs->r_ecx = env->regs[R_ECX];
68     regs->r_eax = env->regs[R_EAX];
69     /* regs->r_trapno = env->regs[R_TRAPNO]; XXX */
70     regs->r_err = env->error_code;  /* XXX ? */
71     regs->r_eip = env->eip;
72 
73     regs->r_cs = env->segs[R_CS].selector & 0xffff;
74 
75     regs->r_eflags = env->eflags;
76     regs->r_esp = env->regs[R_ESP];
77 
78     regs->r_ss = env->segs[R_SS].selector & 0xffff;
79     regs->r_gs = env->segs[R_GS].selector & 0xffff;
80 }
81 
82 #endif /* TARGET_ARCH_REG_H */
83