Commit | Line | Data |
---|---|---|
ac8c974e AR |
1 | /* QNX Neutrino specific low level interface, for the remote server |
2 | for GDB. | |
b811d2c2 | 3 | Copyright (C) 2009-2020 Free Software Foundation, Inc. |
ac8c974e AR |
4 | |
5 | This file is part of GDB. | |
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 3 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 | ||
a8ae7dc0 | 20 | #include "server.h" |
ac8c974e AR |
21 | #include "nto-low.h" |
22 | #include "regdef.h" | |
23 | #include "regcache.h" | |
24 | ||
25 | #include <x86/context.h> | |
268a13a5 | 26 | #include "gdbsupport/x86-xstate.h" |
22916b07 | 27 | #include "arch/i386.h" |
190852c8 | 28 | #include "x86-tdesc.h" |
ac8c974e AR |
29 | |
30 | const unsigned char x86_breakpoint[] = { 0xCC }; | |
31 | #define x86_breakpoint_len 1 | |
32 | ||
33 | /* Returns offset in appropriate Neutrino's context structure. | |
34 | Defined in x86/context.h. | |
35 | GDBREGNO is index into regs_i386 array. It is autogenerated and | |
36 | hopefully doesn't change. */ | |
37 | static int | |
38 | nto_x86_register_offset (int gdbregno) | |
39 | { | |
40 | if (gdbregno >= 0 && gdbregno < 16) | |
41 | { | |
42 | X86_CPU_REGISTERS *dummy = (void*)0; | |
43 | /* GPRs */ | |
44 | switch (gdbregno) | |
45 | { | |
46 | case 0: | |
47 | return (int)&(dummy->eax); | |
48 | case 1: | |
49 | return (int)&(dummy->ecx); | |
50 | case 2: | |
51 | return (int)&(dummy->edx); | |
52 | case 3: | |
53 | return (int)&(dummy->ebx); | |
54 | case 4: | |
55 | return (int)&(dummy->esp); | |
56 | case 5: | |
57 | return (int)&(dummy->ebp); | |
58 | case 6: | |
59 | return (int)&(dummy->esi); | |
60 | case 7: | |
61 | return (int)&(dummy->edi); | |
62 | case 8: | |
63 | return (int)&(dummy->eip); | |
64 | case 9: | |
65 | return (int)&(dummy->efl); | |
66 | case 10: | |
67 | return (int)&(dummy->cs); | |
68 | case 11: | |
69 | return (int)&(dummy->ss); | |
70 | #ifdef __SEGMENTS__ | |
71 | case 12: | |
72 | return (int)&(dummy->ds); | |
73 | case 13: | |
74 | return (int)&(dummy->es); | |
75 | case 14: | |
76 | return (int)&(dummy->fs); | |
77 | case 15: | |
78 | return (int)&(dummy->gs); | |
79 | #endif | |
80 | default: | |
81 | return -1; | |
82 | } | |
83 | } | |
84 | return -1; | |
85 | } | |
86 | ||
87 | static void | |
88 | nto_x86_arch_setup (void) | |
89 | { | |
ac8c974e | 90 | the_low_target.num_regs = 16; |
289a6840 | 91 | struct target_desc *tdesc |
1163a4b7 | 92 | = i386_create_target_description (X86_XSTATE_SSE_MASK, false, false); |
289a6840 | 93 | |
190852c8 | 94 | init_target_desc (tdesc, i386_expedite_regs); |
289a6840 SM |
95 | |
96 | nto_tdesc = tdesc; | |
ac8c974e AR |
97 | } |
98 | ||
99 | struct nto_target_ops the_low_target = | |
100 | { | |
101 | nto_x86_arch_setup, | |
102 | 0, /* num_regs */ | |
103 | nto_x86_register_offset, | |
104 | x86_breakpoint, | |
105 | x86_breakpoint_len | |
106 | }; | |
107 | ||
108 | ||
109 |