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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Ondrej Palkovsky |
2 | * Copyright (c) 2006 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup amd64debug |
29 | /** @addtogroup amd64debug |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <arch/debugger.h> |
35 | #include <arch/debugger.h> |
36 | #include <console/kconsole.h> |
36 | #include <console/kconsole.h> |
37 | #include <console/cmd.h> |
37 | #include <console/cmd.h> |
38 | #include <print.h> |
38 | #include <print.h> |
39 | #include <panic.h> |
39 | #include <panic.h> |
40 | #include <interrupt.h> |
40 | #include <interrupt.h> |
41 | #include <arch/asm.h> |
41 | #include <arch/asm.h> |
42 | #include <arch/cpu.h> |
42 | #include <arch/cpu.h> |
43 | #include <debug.h> |
43 | #include <debug.h> |
44 | #include <func.h> |
44 | #include <func.h> |
45 | #include <smp/ipi.h> |
45 | #include <smp/ipi.h> |
46 | - | ||
47 | #ifdef CONFIG_SYMTAB |
- | |
48 | #include <symtab.h> |
46 | #include <symtab.h> |
49 | #endif |
- | |
50 | 47 | ||
51 | typedef struct { |
48 | typedef struct { |
52 | uintptr_t address; /**< Breakpoint address */ |
49 | uintptr_t address; /**< Breakpoint address */ |
53 | int flags; /**< Flags regarding breakpoint */ |
50 | int flags; /**< Flags regarding breakpoint */ |
54 | int counter; /**< How many times the exception occured */ |
51 | int counter; /**< How many times the exception occured */ |
55 | } bpinfo_t; |
52 | } bpinfo_t; |
56 | 53 | ||
57 | static bpinfo_t breakpoints[BKPOINTS_MAX]; |
54 | static bpinfo_t breakpoints[BKPOINTS_MAX]; |
58 | SPINLOCK_INITIALIZE(bkpoint_lock); |
55 | SPINLOCK_INITIALIZE(bkpoint_lock); |
59 | 56 | ||
60 | #ifdef CONFIG_KCONSOLE |
57 | #ifdef CONFIG_KCONSOLE |
61 | 58 | ||
62 | static int cmd_print_breakpoints(cmd_arg_t *argv); |
59 | static int cmd_print_breakpoints(cmd_arg_t *argv); |
63 | static cmd_info_t bkpts_info = { |
60 | static cmd_info_t bkpts_info = { |
64 | .name = "bkpts", |
61 | .name = "bkpts", |
65 | .description = "Print breakpoint table.", |
62 | .description = "Print breakpoint table.", |
66 | .func = cmd_print_breakpoints, |
63 | .func = cmd_print_breakpoints, |
67 | .argc = 0, |
64 | .argc = 0, |
68 | }; |
65 | }; |
69 | 66 | ||
70 | static int cmd_del_breakpoint(cmd_arg_t *argv); |
67 | static int cmd_del_breakpoint(cmd_arg_t *argv); |
71 | static cmd_arg_t del_argv = { |
68 | static cmd_arg_t del_argv = { |
72 | .type = ARG_TYPE_INT |
69 | .type = ARG_TYPE_INT |
73 | }; |
70 | }; |
74 | static cmd_info_t delbkpt_info = { |
71 | static cmd_info_t delbkpt_info = { |
75 | .name = "delbkpt", |
72 | .name = "delbkpt", |
76 | .description = "delbkpt <number> - Delete breakpoint.", |
73 | .description = "delbkpt <number> - Delete breakpoint.", |
77 | .func = cmd_del_breakpoint, |
74 | .func = cmd_del_breakpoint, |
78 | .argc = 1, |
75 | .argc = 1, |
79 | .argv = &del_argv |
76 | .argv = &del_argv |
80 | }; |
77 | }; |
81 | 78 | ||
82 | static int cmd_add_breakpoint(cmd_arg_t *argv); |
79 | static int cmd_add_breakpoint(cmd_arg_t *argv); |
83 | static cmd_arg_t add_argv = { |
80 | static cmd_arg_t add_argv = { |
84 | .type = ARG_TYPE_INT |
81 | .type = ARG_TYPE_INT |
85 | }; |
82 | }; |
86 | static cmd_info_t addbkpt_info = { |
83 | static cmd_info_t addbkpt_info = { |
87 | .name = "addbkpt", |
84 | .name = "addbkpt", |
88 | .description = "addbkpt <&symbol> - new breakpoint.", |
85 | .description = "addbkpt <&symbol> - new breakpoint.", |
89 | .func = cmd_add_breakpoint, |
86 | .func = cmd_add_breakpoint, |
90 | .argc = 1, |
87 | .argc = 1, |
91 | .argv = &add_argv |
88 | .argv = &add_argv |
92 | }; |
89 | }; |
93 | 90 | ||
94 | static cmd_arg_t addw_argv = { |
91 | static cmd_arg_t addw_argv = { |
95 | .type = ARG_TYPE_INT |
92 | .type = ARG_TYPE_INT |
96 | }; |
93 | }; |
97 | static cmd_info_t addwatchp_info = { |
94 | static cmd_info_t addwatchp_info = { |
98 | .name = "addwatchp", |
95 | .name = "addwatchp", |
99 | .description = "addbwatchp <&symbol> - new write watchpoint.", |
96 | .description = "addbwatchp <&symbol> - new write watchpoint.", |
100 | .func = cmd_add_breakpoint, |
97 | .func = cmd_add_breakpoint, |
101 | .argc = 1, |
98 | .argc = 1, |
102 | .argv = &addw_argv |
99 | .argv = &addw_argv |
103 | }; |
100 | }; |
104 | 101 | ||
105 | #endif /* CONFIG_KCONSOLE */ |
102 | #endif /* CONFIG_KCONSOLE */ |
106 | 103 | ||
107 | /* Setup DR register according to table */ |
104 | /* Setup DR register according to table */ |
108 | static void setup_dr(int curidx) |
105 | static void setup_dr(int curidx) |
109 | { |
106 | { |
110 | unative_t dr7; |
107 | unative_t dr7; |
111 | bpinfo_t *cur = &breakpoints[curidx]; |
108 | bpinfo_t *cur = &breakpoints[curidx]; |
112 | int flags = breakpoints[curidx].flags; |
109 | int flags = breakpoints[curidx].flags; |
113 | 110 | ||
114 | /* Disable breakpoint in DR7 */ |
111 | /* Disable breakpoint in DR7 */ |
115 | dr7 = read_dr7(); |
112 | dr7 = read_dr7(); |
116 | dr7 &= ~(0x2 << (curidx*2)); |
113 | dr7 &= ~(0x2 << (curidx*2)); |
117 | 114 | ||
118 | if (cur->address) { /* Setup DR register */ |
115 | if (cur->address) { /* Setup DR register */ |
119 | /* Set breakpoint to debug registers */ |
116 | /* Set breakpoint to debug registers */ |
120 | switch (curidx) { |
117 | switch (curidx) { |
121 | case 0: |
118 | case 0: |
122 | write_dr0(cur->address); |
119 | write_dr0(cur->address); |
123 | break; |
120 | break; |
124 | case 1: |
121 | case 1: |
125 | write_dr1(cur->address); |
122 | write_dr1(cur->address); |
126 | break; |
123 | break; |
127 | case 2: |
124 | case 2: |
128 | write_dr2(cur->address); |
125 | write_dr2(cur->address); |
129 | break; |
126 | break; |
130 | case 3: |
127 | case 3: |
131 | write_dr3(cur->address); |
128 | write_dr3(cur->address); |
132 | break; |
129 | break; |
133 | } |
130 | } |
134 | /* Set type to requested breakpoint & length*/ |
131 | /* Set type to requested breakpoint & length*/ |
135 | dr7 &= ~ (0x3 << (16 + 4*curidx)); |
132 | dr7 &= ~ (0x3 << (16 + 4*curidx)); |
136 | dr7 &= ~ (0x3 << (18 + 4*curidx)); |
133 | dr7 &= ~ (0x3 << (18 + 4*curidx)); |
137 | if ((flags & BKPOINT_INSTR)) { |
134 | if ((flags & BKPOINT_INSTR)) { |
138 | ; |
135 | ; |
139 | } else { |
136 | } else { |
140 | 137 | ||
141 | #ifdef __32_BITS__ |
138 | #ifdef __32_BITS__ |
142 | dr7 |= ((unative_t) 0x3) << (18 + 4 * curidx); |
139 | dr7 |= ((unative_t) 0x3) << (18 + 4 * curidx); |
143 | #endif |
140 | #endif |
144 | 141 | ||
145 | #ifdef __64_BITS__ |
142 | #ifdef __64_BITS__ |
146 | dr7 |= ((unative_t) 0x2) << (18 + 4 * curidx); |
143 | dr7 |= ((unative_t) 0x2) << (18 + 4 * curidx); |
147 | #endif |
144 | #endif |
148 | 145 | ||
149 | if ((flags & BKPOINT_WRITE)) |
146 | if ((flags & BKPOINT_WRITE)) |
150 | dr7 |= ((unative_t) 0x1) << (16 + 4 * curidx); |
147 | dr7 |= ((unative_t) 0x1) << (16 + 4 * curidx); |
151 | else if ((flags & BKPOINT_READ_WRITE)) |
148 | else if ((flags & BKPOINT_READ_WRITE)) |
152 | dr7 |= ((unative_t) 0x3) << (16 + 4 * curidx); |
149 | dr7 |= ((unative_t) 0x3) << (16 + 4 * curidx); |
153 | } |
150 | } |
154 | 151 | ||
155 | /* Enable global breakpoint */ |
152 | /* Enable global breakpoint */ |
156 | dr7 |= 0x2 << (curidx * 2); |
153 | dr7 |= 0x2 << (curidx * 2); |
157 | 154 | ||
158 | write_dr7(dr7); |
155 | write_dr7(dr7); |
159 | 156 | ||
160 | } |
157 | } |
161 | } |
158 | } |
162 | 159 | ||
163 | /** Enable hardware breakpoint |
160 | /** Enable hardware breakpoint |
164 | * |
161 | * |
165 | * @param where Address of HW breakpoint |
162 | * @param where Address of HW breakpoint |
166 | * @param flags Type of breakpoint (EXECUTE, WRITE) |
163 | * @param flags Type of breakpoint (EXECUTE, WRITE) |
167 | * @return Debug slot on success, -1 - no available HW breakpoint |
164 | * @return Debug slot on success, -1 - no available HW breakpoint |
168 | */ |
165 | */ |
169 | int breakpoint_add(const void *where, const int flags, int curidx) |
166 | int breakpoint_add(const void *where, const int flags, int curidx) |
170 | { |
167 | { |
171 | ipl_t ipl; |
168 | ipl_t ipl; |
172 | int i; |
169 | int i; |
173 | bpinfo_t *cur; |
170 | bpinfo_t *cur; |
174 | 171 | ||
175 | ASSERT(flags & (BKPOINT_INSTR | BKPOINT_WRITE | BKPOINT_READ_WRITE)); |
172 | ASSERT(flags & (BKPOINT_INSTR | BKPOINT_WRITE | BKPOINT_READ_WRITE)); |
176 | 173 | ||
177 | ipl = interrupts_disable(); |
174 | ipl = interrupts_disable(); |
178 | spinlock_lock(&bkpoint_lock); |
175 | spinlock_lock(&bkpoint_lock); |
179 | 176 | ||
180 | if (curidx == -1) { |
177 | if (curidx == -1) { |
181 | /* Find free space in slots */ |
178 | /* Find free space in slots */ |
182 | for (i = 0; i < BKPOINTS_MAX; i++) |
179 | for (i = 0; i < BKPOINTS_MAX; i++) |
183 | if (!breakpoints[i].address) { |
180 | if (!breakpoints[i].address) { |
184 | curidx = i; |
181 | curidx = i; |
185 | break; |
182 | break; |
186 | } |
183 | } |
187 | if (curidx == -1) { |
184 | if (curidx == -1) { |
188 | /* Too many breakpoints */ |
185 | /* Too many breakpoints */ |
189 | spinlock_unlock(&bkpoint_lock); |
186 | spinlock_unlock(&bkpoint_lock); |
190 | interrupts_restore(ipl); |
187 | interrupts_restore(ipl); |
191 | return -1; |
188 | return -1; |
192 | } |
189 | } |
193 | } |
190 | } |
194 | cur = &breakpoints[curidx]; |
191 | cur = &breakpoints[curidx]; |
195 | 192 | ||
196 | cur->address = (uintptr_t) where; |
193 | cur->address = (uintptr_t) where; |
197 | cur->flags = flags; |
194 | cur->flags = flags; |
198 | cur->counter = 0; |
195 | cur->counter = 0; |
199 | 196 | ||
200 | setup_dr(curidx); |
197 | setup_dr(curidx); |
201 | 198 | ||
202 | spinlock_unlock(&bkpoint_lock); |
199 | spinlock_unlock(&bkpoint_lock); |
203 | interrupts_restore(ipl); |
200 | interrupts_restore(ipl); |
204 | 201 | ||
205 | /* Send IPI */ |
202 | /* Send IPI */ |
206 | #ifdef CONFIG_SMP |
203 | #ifdef CONFIG_SMP |
207 | // ipi_broadcast(VECTOR_DEBUG_IPI); |
204 | // ipi_broadcast(VECTOR_DEBUG_IPI); |
208 | #endif |
205 | #endif |
209 | 206 | ||
210 | return curidx; |
207 | return curidx; |
211 | } |
208 | } |
212 | 209 | ||
213 | #ifdef __64_BITS__ |
210 | #ifdef __64_BITS__ |
214 | #define getip(x) ((x)->rip) |
211 | #define getip(x) ((x)->rip) |
215 | #else |
212 | #else |
216 | #define getip(x) ((x)->eip) |
213 | #define getip(x) ((x)->eip) |
217 | #endif |
214 | #endif |
218 | 215 | ||
219 | static void handle_exception(int slot, istate_t *istate) |
216 | static void handle_exception(int slot, istate_t *istate) |
220 | { |
217 | { |
221 | ASSERT(breakpoints[slot].address); |
218 | ASSERT(breakpoints[slot].address); |
222 | 219 | ||
223 | /* Handle zero checker */ |
220 | /* Handle zero checker */ |
224 | if (! (breakpoints[slot].flags & BKPOINT_INSTR)) { |
221 | if (! (breakpoints[slot].flags & BKPOINT_INSTR)) { |
225 | if ((breakpoints[slot].flags & BKPOINT_CHECK_ZERO)) { |
222 | if ((breakpoints[slot].flags & BKPOINT_CHECK_ZERO)) { |
226 | if (*((unative_t *) breakpoints[slot].address) != 0) |
223 | if (*((unative_t *) breakpoints[slot].address) != 0) |
227 | return; |
224 | return; |
228 | printf("*** Found ZERO on address %lx (slot %d) ***\n", |
225 | printf("*** Found ZERO on address %lx (slot %d) ***\n", |
229 | breakpoints[slot].address, slot); |
226 | breakpoints[slot].address, slot); |
230 | } else { |
227 | } else { |
231 | printf("Data watchpoint - new data: %lx\n", |
228 | printf("Data watchpoint - new data: %lx\n", |
232 | *((unative_t *) breakpoints[slot].address)); |
229 | *((unative_t *) breakpoints[slot].address)); |
233 | } |
230 | } |
234 | } |
231 | } |
235 | 232 | ||
236 | #ifdef CONFIG_SYMTAB |
- | |
237 | printf("Reached breakpoint %d:%lx(%s)\n", slot, getip(istate), |
233 | printf("Reached breakpoint %d:%lx (%s)\n", slot, getip(istate), |
238 | get_symtab_entry(getip(istate))); |
234 | symtab_fmt_name_lookup(getip(istate))); |
239 | #else |
- | |
240 | printf("Reached breakpoint %d:%lx\n", slot, getip(istate)); |
- | |
241 | #endif |
- | |
242 | 235 | ||
243 | #ifdef CONFIG_KCONSOLE |
236 | #ifdef CONFIG_KCONSOLE |
244 | atomic_set(&haltstate, 1); |
237 | atomic_set(&haltstate, 1); |
245 | kconsole("debug", "Debug console ready.\n", false); |
238 | kconsole("debug", "Debug console ready.\n", false); |
246 | atomic_set(&haltstate, 0); |
239 | atomic_set(&haltstate, 0); |
247 | #endif |
240 | #endif |
248 | } |
241 | } |
249 | 242 | ||
250 | void breakpoint_del(int slot) |
243 | void breakpoint_del(int slot) |
251 | { |
244 | { |
252 | bpinfo_t *cur; |
245 | bpinfo_t *cur; |
253 | ipl_t ipl; |
246 | ipl_t ipl; |
254 | 247 | ||
255 | ipl = interrupts_disable(); |
248 | ipl = interrupts_disable(); |
256 | spinlock_lock(&bkpoint_lock); |
249 | spinlock_lock(&bkpoint_lock); |
257 | 250 | ||
258 | cur = &breakpoints[slot]; |
251 | cur = &breakpoints[slot]; |
259 | if (!cur->address) { |
252 | if (!cur->address) { |
260 | spinlock_unlock(&bkpoint_lock); |
253 | spinlock_unlock(&bkpoint_lock); |
261 | interrupts_restore(ipl); |
254 | interrupts_restore(ipl); |
262 | return; |
255 | return; |
263 | } |
256 | } |
264 | 257 | ||
265 | cur->address = NULL; |
258 | cur->address = NULL; |
266 | 259 | ||
267 | setup_dr(slot); |
260 | setup_dr(slot); |
268 | 261 | ||
269 | spinlock_unlock(&bkpoint_lock); |
262 | spinlock_unlock(&bkpoint_lock); |
270 | interrupts_restore(ipl); |
263 | interrupts_restore(ipl); |
271 | #ifdef CONFIG_SMP |
264 | #ifdef CONFIG_SMP |
272 | // ipi_broadcast(VECTOR_DEBUG_IPI); |
265 | // ipi_broadcast(VECTOR_DEBUG_IPI); |
273 | #endif |
266 | #endif |
274 | } |
267 | } |
275 | 268 | ||
276 | 269 | ||
277 | 270 | ||
278 | static void debug_exception(int n __attribute__((unused)), istate_t *istate) |
271 | static void debug_exception(int n __attribute__((unused)), istate_t *istate) |
279 | { |
272 | { |
280 | unative_t dr6; |
273 | unative_t dr6; |
281 | int i; |
274 | int i; |
282 | 275 | ||
283 | /* Set RF to restart the instruction */ |
276 | /* Set RF to restart the instruction */ |
284 | #ifdef __64_BITS__ |
277 | #ifdef __64_BITS__ |
285 | istate->rflags |= RFLAGS_RF; |
278 | istate->rflags |= RFLAGS_RF; |
286 | #else |
279 | #else |
287 | istate->eflags |= EFLAGS_RF; |
280 | istate->eflags |= EFLAGS_RF; |
288 | #endif |
281 | #endif |
289 | 282 | ||
290 | dr6 = read_dr6(); |
283 | dr6 = read_dr6(); |
291 | for (i=0; i < BKPOINTS_MAX; i++) { |
284 | for (i=0; i < BKPOINTS_MAX; i++) { |
292 | if (dr6 & (1 << i)) { |
285 | if (dr6 & (1 << i)) { |
293 | dr6 &= ~ (1 << i); |
286 | dr6 &= ~ (1 << i); |
294 | write_dr6(dr6); |
287 | write_dr6(dr6); |
295 | 288 | ||
296 | handle_exception(i, istate); |
289 | handle_exception(i, istate); |
297 | } |
290 | } |
298 | } |
291 | } |
299 | } |
292 | } |
300 | 293 | ||
301 | #ifdef CONFIG_SMP |
294 | #ifdef CONFIG_SMP |
302 | static void |
295 | static void |
303 | debug_ipi(int n __attribute__((unused)), |
296 | debug_ipi(int n __attribute__((unused)), |
304 | istate_t *istate __attribute__((unused))) |
297 | istate_t *istate __attribute__((unused))) |
305 | { |
298 | { |
306 | int i; |
299 | int i; |
307 | 300 | ||
308 | spinlock_lock(&bkpoint_lock); |
301 | spinlock_lock(&bkpoint_lock); |
309 | for (i = 0; i < BKPOINTS_MAX; i++) |
302 | for (i = 0; i < BKPOINTS_MAX; i++) |
310 | setup_dr(i); |
303 | setup_dr(i); |
311 | spinlock_unlock(&bkpoint_lock); |
304 | spinlock_unlock(&bkpoint_lock); |
312 | } |
305 | } |
313 | #endif |
306 | #endif |
314 | 307 | ||
315 | /** Initialize debugger */ |
308 | /** Initialize debugger */ |
316 | void debugger_init() |
309 | void debugger_init() |
317 | { |
310 | { |
318 | int i; |
311 | int i; |
319 | 312 | ||
320 | for (i = 0; i < BKPOINTS_MAX; i++) |
313 | for (i = 0; i < BKPOINTS_MAX; i++) |
321 | breakpoints[i].address = NULL; |
314 | breakpoints[i].address = NULL; |
322 | 315 | ||
323 | #ifdef CONFIG_KCONSOLE |
316 | #ifdef CONFIG_KCONSOLE |
324 | cmd_initialize(&bkpts_info); |
317 | cmd_initialize(&bkpts_info); |
325 | if (!cmd_register(&bkpts_info)) |
318 | if (!cmd_register(&bkpts_info)) |
326 | printf("Cannot register command %s\n", bkpts_info.name); |
319 | printf("Cannot register command %s\n", bkpts_info.name); |
327 | 320 | ||
328 | cmd_initialize(&delbkpt_info); |
321 | cmd_initialize(&delbkpt_info); |
329 | if (!cmd_register(&delbkpt_info)) |
322 | if (!cmd_register(&delbkpt_info)) |
330 | printf("Cannot register command %s\n", delbkpt_info.name); |
323 | printf("Cannot register command %s\n", delbkpt_info.name); |
331 | 324 | ||
332 | cmd_initialize(&addbkpt_info); |
325 | cmd_initialize(&addbkpt_info); |
333 | if (!cmd_register(&addbkpt_info)) |
326 | if (!cmd_register(&addbkpt_info)) |
334 | printf("Cannot register command %s\n", addbkpt_info.name); |
327 | printf("Cannot register command %s\n", addbkpt_info.name); |
335 | 328 | ||
336 | cmd_initialize(&addwatchp_info); |
329 | cmd_initialize(&addwatchp_info); |
337 | if (!cmd_register(&addwatchp_info)) |
330 | if (!cmd_register(&addwatchp_info)) |
338 | printf("Cannot register command %s\n", addwatchp_info.name); |
331 | printf("Cannot register command %s\n", addwatchp_info.name); |
339 | #endif /* CONFIG_KCONSOLE */ |
332 | #endif /* CONFIG_KCONSOLE */ |
340 | 333 | ||
341 | exc_register(VECTOR_DEBUG, "debugger", debug_exception); |
334 | exc_register(VECTOR_DEBUG, "debugger", debug_exception); |
342 | #ifdef CONFIG_SMP |
335 | #ifdef CONFIG_SMP |
343 | exc_register(VECTOR_DEBUG_IPI, "debugger_smp", debug_ipi); |
336 | exc_register(VECTOR_DEBUG_IPI, "debugger_smp", debug_ipi); |
344 | #endif |
337 | #endif |
345 | } |
338 | } |
346 | 339 | ||
347 | #ifdef CONFIG_KCONSOLE |
340 | #ifdef CONFIG_KCONSOLE |
348 | /** Print table of active breakpoints */ |
341 | /** Print table of active breakpoints */ |
349 | int cmd_print_breakpoints(cmd_arg_t *argv __attribute__((unused))) |
342 | int cmd_print_breakpoints(cmd_arg_t *argv __attribute__((unused))) |
350 | { |
343 | { |
351 | unsigned int i; |
344 | unsigned int i; |
352 | char *symbol; |
345 | char *symbol; |
353 | 346 | ||
354 | #ifdef __32_BITS__ |
347 | #ifdef __32_BITS__ |
355 | printf("# Count Address In symbol\n"); |
348 | printf("# Count Address In symbol\n"); |
356 | printf("-- ----- ---------- ---------\n"); |
349 | printf("-- ----- ---------- ---------\n"); |
357 | #endif |
350 | #endif |
358 | 351 | ||
359 | #ifdef __64_BITS__ |
352 | #ifdef __64_BITS__ |
360 | printf("# Count Address In symbol\n"); |
353 | printf("# Count Address In symbol\n"); |
361 | printf("-- ----- ------------------ ---------\n"); |
354 | printf("-- ----- ------------------ ---------\n"); |
362 | #endif |
355 | #endif |
363 | 356 | ||
364 | for (i = 0; i < BKPOINTS_MAX; i++) |
357 | for (i = 0; i < BKPOINTS_MAX; i++) |
365 | if (breakpoints[i].address) { |
358 | if (breakpoints[i].address) { |
366 | #ifdef CONFIG_SYMTAB |
- | |
367 | symbol = get_symtab_entry(breakpoints[i].address); |
359 | symbol = symtab_fmt_name_lookup( |
368 | #else |
- | |
369 | symbol = "n/a"; |
360 | breakpoints[i].address); |
370 | #endif |
- | |
371 | 361 | ||
372 | #ifdef __32_BITS__ |
362 | #ifdef __32_BITS__ |
373 | printf("%-2u %-5d %#10zx %s\n", i, |
363 | printf("%-2u %-5d %#10zx %s\n", i, |
374 | breakpoints[i].counter, breakpoints[i].address, |
364 | breakpoints[i].counter, breakpoints[i].address, |
375 | symbol); |
365 | symbol); |
376 | #endif |
366 | #endif |
377 | 367 | ||
378 | #ifdef __64_BITS__ |
368 | #ifdef __64_BITS__ |
379 | printf("%-2u %-5d %#18zx %s\n", i, |
369 | printf("%-2u %-5d %#18zx %s\n", i, |
380 | breakpoints[i].counter, breakpoints[i].address, |
370 | breakpoints[i].counter, breakpoints[i].address, |
381 | symbol); |
371 | symbol); |
382 | #endif |
372 | #endif |
383 | 373 | ||
384 | } |
374 | } |
385 | return 1; |
375 | return 1; |
386 | } |
376 | } |
387 | 377 | ||
388 | /** Remove breakpoint from table */ |
378 | /** Remove breakpoint from table */ |
389 | int cmd_del_breakpoint(cmd_arg_t *argv) |
379 | int cmd_del_breakpoint(cmd_arg_t *argv) |
390 | { |
380 | { |
391 | unative_t bpno = argv->intval; |
381 | unative_t bpno = argv->intval; |
392 | if (bpno > BKPOINTS_MAX) { |
382 | if (bpno > BKPOINTS_MAX) { |
393 | printf("Invalid breakpoint number.\n"); |
383 | printf("Invalid breakpoint number.\n"); |
394 | return 0; |
384 | return 0; |
395 | } |
385 | } |
396 | breakpoint_del(argv->intval); |
386 | breakpoint_del(argv->intval); |
397 | return 1; |
387 | return 1; |
398 | } |
388 | } |
399 | 389 | ||
400 | /** Add new breakpoint to table */ |
390 | /** Add new breakpoint to table */ |
401 | static int cmd_add_breakpoint(cmd_arg_t *argv) |
391 | static int cmd_add_breakpoint(cmd_arg_t *argv) |
402 | { |
392 | { |
403 | int flags; |
393 | int flags; |
404 | int id; |
394 | int id; |
405 | 395 | ||
406 | if (argv == &add_argv) { |
396 | if (argv == &add_argv) { |
407 | flags = BKPOINT_INSTR; |
397 | flags = BKPOINT_INSTR; |
408 | } else { /* addwatchp */ |
398 | } else { /* addwatchp */ |
409 | flags = BKPOINT_WRITE; |
399 | flags = BKPOINT_WRITE; |
410 | } |
400 | } |
411 | printf("Adding breakpoint on address: %p\n", argv->intval); |
401 | printf("Adding breakpoint on address: %p\n", argv->intval); |
412 | id = breakpoint_add((void *)argv->intval, flags, -1); |
402 | id = breakpoint_add((void *)argv->intval, flags, -1); |
413 | if (id < 0) |
403 | if (id < 0) |
414 | printf("Add breakpoint failed.\n"); |
404 | printf("Add breakpoint failed.\n"); |
415 | else |
405 | else |
416 | printf("Added breakpoint %d.\n", id); |
406 | printf("Added breakpoint %d.\n", id); |
417 | 407 | ||
418 | return 1; |
408 | return 1; |
419 | } |
409 | } |
420 | #endif /* CONFIG_KCONSOLE */ |
410 | #endif /* CONFIG_KCONSOLE */ |
421 | 411 | ||
422 | /** @} |
412 | /** @} |
423 | */ |
413 | */ |
424 | 414 |