root / target-lm32 / gdbstub.c @ 5b50e790
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1 | d0ff8d05 | Andreas Färber | /*
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2 | d0ff8d05 | Andreas Färber | * LM32 gdb server stub
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3 | d0ff8d05 | Andreas Färber | *
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4 | d0ff8d05 | Andreas Färber | * Copyright (c) 2003-2005 Fabrice Bellard
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5 | d0ff8d05 | Andreas Färber | * Copyright (c) 2013 SUSE LINUX Products GmbH
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6 | d0ff8d05 | Andreas Färber | *
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7 | d0ff8d05 | Andreas Färber | * This library is free software; you can redistribute it and/or
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8 | d0ff8d05 | Andreas Färber | * modify it under the terms of the GNU Lesser General Public
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9 | d0ff8d05 | Andreas Färber | * License as published by the Free Software Foundation; either
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10 | d0ff8d05 | Andreas Färber | * version 2 of the License, or (at your option) any later version.
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11 | d0ff8d05 | Andreas Färber | *
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12 | d0ff8d05 | Andreas Färber | * This library is distributed in the hope that it will be useful,
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13 | d0ff8d05 | Andreas Färber | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | d0ff8d05 | Andreas Färber | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | d0ff8d05 | Andreas Färber | * Lesser General Public License for more details.
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16 | d0ff8d05 | Andreas Färber | *
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17 | d0ff8d05 | Andreas Färber | * You should have received a copy of the GNU Lesser General Public
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18 | d0ff8d05 | Andreas Färber | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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19 | d0ff8d05 | Andreas Färber | */
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20 | 5b50e790 | Andreas Färber | #include "config.h" |
21 | 5b50e790 | Andreas Färber | #include "qemu-common.h" |
22 | 5b50e790 | Andreas Färber | #include "exec/gdbstub.h" |
23 | d0ff8d05 | Andreas Färber | #include "hw/lm32/lm32_pic.h" |
24 | d0ff8d05 | Andreas Färber | |
25 | 5b50e790 | Andreas Färber | int lm32_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) |
26 | d0ff8d05 | Andreas Färber | { |
27 | 5b50e790 | Andreas Färber | LM32CPU *cpu = LM32_CPU(cs); |
28 | 5b50e790 | Andreas Färber | CPULM32State *env = &cpu->env; |
29 | 5b50e790 | Andreas Färber | |
30 | d0ff8d05 | Andreas Färber | if (n < 32) { |
31 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, env->regs[n]);
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32 | d0ff8d05 | Andreas Färber | } else {
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33 | d0ff8d05 | Andreas Färber | switch (n) {
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34 | d0ff8d05 | Andreas Färber | case 32: |
35 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, env->pc);
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36 | d0ff8d05 | Andreas Färber | /* FIXME: put in right exception ID */
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37 | d0ff8d05 | Andreas Färber | case 33: |
38 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, 0); |
39 | d0ff8d05 | Andreas Färber | case 34: |
40 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, env->eba);
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41 | d0ff8d05 | Andreas Färber | case 35: |
42 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, env->deba);
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43 | d0ff8d05 | Andreas Färber | case 36: |
44 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, env->ie);
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45 | d0ff8d05 | Andreas Färber | case 37: |
46 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, lm32_pic_get_im(env->pic_state));
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47 | d0ff8d05 | Andreas Färber | case 38: |
48 | 986a2998 | Andreas Färber | return gdb_get_reg32(mem_buf, lm32_pic_get_ip(env->pic_state));
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49 | d0ff8d05 | Andreas Färber | } |
50 | d0ff8d05 | Andreas Färber | } |
51 | d0ff8d05 | Andreas Färber | return 0; |
52 | d0ff8d05 | Andreas Färber | } |
53 | d0ff8d05 | Andreas Färber | |
54 | 5b50e790 | Andreas Färber | int lm32_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
55 | d0ff8d05 | Andreas Färber | { |
56 | 5b50e790 | Andreas Färber | LM32CPU *cpu = LM32_CPU(cs); |
57 | 5b50e790 | Andreas Färber | CPUClass *cc = CPU_GET_CLASS(cs); |
58 | 5b50e790 | Andreas Färber | CPULM32State *env = &cpu->env; |
59 | d0ff8d05 | Andreas Färber | uint32_t tmp; |
60 | d0ff8d05 | Andreas Färber | |
61 | d0ff8d05 | Andreas Färber | if (n > cc->gdb_num_core_regs) {
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62 | d0ff8d05 | Andreas Färber | return 0; |
63 | d0ff8d05 | Andreas Färber | } |
64 | d0ff8d05 | Andreas Färber | |
65 | d0ff8d05 | Andreas Färber | tmp = ldl_p(mem_buf); |
66 | d0ff8d05 | Andreas Färber | |
67 | d0ff8d05 | Andreas Färber | if (n < 32) { |
68 | d0ff8d05 | Andreas Färber | env->regs[n] = tmp; |
69 | d0ff8d05 | Andreas Färber | } else {
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70 | d0ff8d05 | Andreas Färber | switch (n) {
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71 | d0ff8d05 | Andreas Färber | case 32: |
72 | d0ff8d05 | Andreas Färber | env->pc = tmp; |
73 | d0ff8d05 | Andreas Färber | break;
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74 | d0ff8d05 | Andreas Färber | case 34: |
75 | d0ff8d05 | Andreas Färber | env->eba = tmp; |
76 | d0ff8d05 | Andreas Färber | break;
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77 | d0ff8d05 | Andreas Färber | case 35: |
78 | d0ff8d05 | Andreas Färber | env->deba = tmp; |
79 | d0ff8d05 | Andreas Färber | break;
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80 | d0ff8d05 | Andreas Färber | case 36: |
81 | d0ff8d05 | Andreas Färber | env->ie = tmp; |
82 | d0ff8d05 | Andreas Färber | break;
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83 | d0ff8d05 | Andreas Färber | case 37: |
84 | d0ff8d05 | Andreas Färber | lm32_pic_set_im(env->pic_state, tmp); |
85 | d0ff8d05 | Andreas Färber | break;
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86 | d0ff8d05 | Andreas Färber | case 38: |
87 | d0ff8d05 | Andreas Färber | lm32_pic_set_ip(env->pic_state, tmp); |
88 | d0ff8d05 | Andreas Färber | break;
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89 | d0ff8d05 | Andreas Färber | } |
90 | d0ff8d05 | Andreas Färber | } |
91 | d0ff8d05 | Andreas Färber | return 4; |
92 | d0ff8d05 | Andreas Färber | } |