Commit | Line | Data |
---|---|---|
7cfbc4a0 | 1 | /* GNU/Linux/m32r specific low level interface, for the remote server for GDB. |
0b302171 | 2 | Copyright (C) 2005, 2007-2012 Free Software Foundation, Inc. |
7cfbc4a0 KI |
3 | |
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
7cfbc4a0 KI |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
7cfbc4a0 KI |
18 | |
19 | #include "server.h" | |
20 | #include "linux-low.h" | |
21 | ||
22 | #ifdef HAVE_SYS_REG_H | |
23 | #include <sys/reg.h> | |
24 | #endif | |
25 | ||
d05b4ac3 UW |
26 | /* Defined in auto-generated file reg-m32r.c. */ |
27 | void init_registers_m32r (void); | |
28 | ||
7cfbc4a0 KI |
29 | #define m32r_num_regs 25 |
30 | ||
31 | static int m32r_regmap[] = { | |
32 | #ifdef PT_R0 | |
33 | PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7, | |
34 | PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_FP, PT_LR, PT_SPU, | |
35 | PT_PSW, PT_CBR, PT_SPI, PT_SPU, PT_BPC, PT_PC, PT_ACCL, PT_ACCH, PT_EVB | |
36 | #else | |
37 | 4 * 4, 4 * 5, 4 * 6, 4 * 7, 4 * 0, 4 * 1, 4 * 2, 4 * 8, | |
38 | 4 * 9, 4 * 10, 4 * 11, 4 * 12, 4 * 13, 4 * 24, 4 * 25, 4 * 23, | |
39 | 4 * 19, 4 * 31, 4 * 26, 4 * 23, 4 * 20, 4 * 30, 4 * 16, 4 * 15, 4 * 32 | |
40 | #endif | |
41 | }; | |
42 | ||
43 | static int | |
44 | m32r_cannot_store_register (int regno) | |
45 | { | |
46 | return (regno >= m32r_num_regs); | |
47 | } | |
48 | ||
49 | static int | |
50 | m32r_cannot_fetch_register (int regno) | |
51 | { | |
52 | return (regno >= m32r_num_regs); | |
53 | } | |
54 | ||
55 | static CORE_ADDR | |
442ea881 | 56 | m32r_get_pc (struct regcache *regcache) |
7cfbc4a0 KI |
57 | { |
58 | unsigned long pc; | |
442ea881 PA |
59 | collect_register_by_name (regcache, "pc", &pc); |
60 | if (debug_threads) | |
61 | fprintf (stderr, "stop pc is %08lx\n", pc); | |
7cfbc4a0 KI |
62 | return pc; |
63 | } | |
64 | ||
65 | static void | |
442ea881 | 66 | m32r_set_pc (struct regcache *regcache, CORE_ADDR pc) |
7cfbc4a0 KI |
67 | { |
68 | unsigned long newpc = pc; | |
442ea881 | 69 | supply_register_by_name (regcache, "pc", &newpc); |
7cfbc4a0 KI |
70 | } |
71 | ||
72 | static const unsigned short m32r_breakpoint = 0x10f1; | |
73 | #define m32r_breakpoint_len 2 | |
74 | ||
75 | static int | |
76 | m32r_breakpoint_at (CORE_ADDR where) | |
77 | { | |
78 | unsigned short insn; | |
79 | ||
f450004a DJ |
80 | (*the_target->read_memory) (where, (unsigned char *) &insn, |
81 | m32r_breakpoint_len); | |
7cfbc4a0 KI |
82 | if (insn == m32r_breakpoint) |
83 | return 1; | |
84 | ||
85 | /* If necessary, recognize more trap instructions here. GDB only uses the | |
86 | one. */ | |
87 | return 0; | |
88 | } | |
89 | ||
90 | struct linux_target_ops the_low_target = { | |
d05b4ac3 | 91 | init_registers_m32r, |
7cfbc4a0 KI |
92 | m32r_num_regs, |
93 | m32r_regmap, | |
1faeff08 | 94 | NULL, |
7cfbc4a0 KI |
95 | m32r_cannot_fetch_register, |
96 | m32r_cannot_store_register, | |
c14dfd32 | 97 | NULL, /* fetch_register */ |
7cfbc4a0 KI |
98 | m32r_get_pc, |
99 | m32r_set_pc, | |
f450004a | 100 | (const unsigned char *) &m32r_breakpoint, |
7cfbc4a0 KI |
101 | m32r_breakpoint_len, |
102 | NULL, | |
103 | 0, | |
104 | m32r_breakpoint_at, | |
105 | }; |