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ac8c974e AR |
1 | /* QNX Neutrino specific low level interface, for the remote server |
2 | for GDB. | |
61baf725 | 3 | Copyright (C) 2009-2017 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> | |
22916b07 YQ |
26 | #include "x86-xstate.h" |
27 | #include "arch/i386.h" | |
ac8c974e AR |
28 | |
29 | const unsigned char x86_breakpoint[] = { 0xCC }; | |
30 | #define x86_breakpoint_len 1 | |
31 | ||
32 | /* Returns offset in appropriate Neutrino's context structure. | |
33 | Defined in x86/context.h. | |
34 | GDBREGNO is index into regs_i386 array. It is autogenerated and | |
35 | hopefully doesn't change. */ | |
36 | static int | |
37 | nto_x86_register_offset (int gdbregno) | |
38 | { | |
39 | if (gdbregno >= 0 && gdbregno < 16) | |
40 | { | |
41 | X86_CPU_REGISTERS *dummy = (void*)0; | |
42 | /* GPRs */ | |
43 | switch (gdbregno) | |
44 | { | |
45 | case 0: | |
46 | return (int)&(dummy->eax); | |
47 | case 1: | |
48 | return (int)&(dummy->ecx); | |
49 | case 2: | |
50 | return (int)&(dummy->edx); | |
51 | case 3: | |
52 | return (int)&(dummy->ebx); | |
53 | case 4: | |
54 | return (int)&(dummy->esp); | |
55 | case 5: | |
56 | return (int)&(dummy->ebp); | |
57 | case 6: | |
58 | return (int)&(dummy->esi); | |
59 | case 7: | |
60 | return (int)&(dummy->edi); | |
61 | case 8: | |
62 | return (int)&(dummy->eip); | |
63 | case 9: | |
64 | return (int)&(dummy->efl); | |
65 | case 10: | |
66 | return (int)&(dummy->cs); | |
67 | case 11: | |
68 | return (int)&(dummy->ss); | |
69 | #ifdef __SEGMENTS__ | |
70 | case 12: | |
71 | return (int)&(dummy->ds); | |
72 | case 13: | |
73 | return (int)&(dummy->es); | |
74 | case 14: | |
75 | return (int)&(dummy->fs); | |
76 | case 15: | |
77 | return (int)&(dummy->gs); | |
78 | #endif | |
79 | default: | |
80 | return -1; | |
81 | } | |
82 | } | |
83 | return -1; | |
84 | } | |
85 | ||
86 | static void | |
87 | nto_x86_arch_setup (void) | |
88 | { | |
ac8c974e | 89 | the_low_target.num_regs = 16; |
22916b07 | 90 | nto_tdesc = i386_create_target_description (X86_XSTATE_SSE_MASK, false); |
ac8c974e AR |
91 | } |
92 | ||
93 | struct nto_target_ops the_low_target = | |
94 | { | |
95 | nto_x86_arch_setup, | |
96 | 0, /* num_regs */ | |
97 | nto_x86_register_offset, | |
98 | x86_breakpoint, | |
99 | x86_breakpoint_len | |
100 | }; | |
101 | ||
102 | ||
103 |