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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
2 | * Copyright (c) 2008 Jiri Svoboda |
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 generic |
29 | /** @addtogroup generic |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | * @brief Udebug IPC message handling. |
35 | * @brief Udebug IPC message handling. |
36 | */ |
36 | */ |
37 | 37 | ||
38 | #include <console/klog.h> |
38 | #include <console/klog.h> |
39 | #include <proc/task.h> |
39 | #include <proc/task.h> |
40 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
41 | #include <arch.h> |
41 | #include <arch.h> |
42 | #include <errno.h> |
42 | #include <errno.h> |
43 | #include <ipc/ipc.h> |
43 | #include <ipc/ipc.h> |
44 | #include <syscall/copy.h> |
44 | #include <syscall/copy.h> |
45 | #include <udebug/udebug.h> |
45 | #include <udebug/udebug.h> |
46 | #include <udebug/udebug_ops.h> |
46 | #include <udebug/udebug_ops.h> |
47 | #include <udebug/udebug_ipc.h> |
47 | #include <udebug/udebug_ipc.h> |
48 | 48 | ||
49 | static int udebug_rp_regs_write(call_t *call, phone_t *phone) |
49 | static int udebug_rp_regs_write(call_t *call, phone_t *phone) |
50 | { |
50 | { |
51 | void *uspace_data; |
51 | void *uspace_data; |
52 | unative_t to_copy; |
52 | unative_t to_copy; |
53 | int rc; |
53 | int rc; |
54 | void *buffer; |
54 | void *buffer; |
55 | 55 | ||
56 | klog_printf("debug_regs_write()"); |
56 | klog_printf("debug_regs_write()"); |
57 | 57 | ||
58 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
58 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
59 | to_copy = sizeof(istate_t); |
59 | to_copy = sizeof(istate_t); |
60 | buffer = malloc(to_copy, 0); |
60 | buffer = malloc(to_copy, 0); |
61 | 61 | ||
62 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
62 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
63 | if (rc != 0) { |
63 | if (rc != 0) { |
64 | klog_printf("debug_regs_write() - copy failed"); |
64 | klog_printf("debug_regs_write() - copy failed"); |
65 | return rc; |
65 | return rc; |
66 | } |
66 | } |
67 | 67 | ||
68 | call->buffer = buffer; |
68 | call->buffer = buffer; |
69 | 69 | ||
70 | klog_printf(" - done"); |
70 | klog_printf(" - done"); |
71 | return 0; |
71 | return 0; |
72 | } |
72 | } |
73 | 73 | ||
74 | static int udebug_rp_mem_write(call_t *call, phone_t *phone) |
74 | static int udebug_rp_mem_write(call_t *call, phone_t *phone) |
75 | { |
75 | { |
76 | void *uspace_data; |
76 | void *uspace_data; |
77 | unative_t to_copy; |
77 | unative_t to_copy; |
78 | int rc; |
78 | int rc; |
79 | void *buffer; |
79 | void *buffer; |
80 | 80 | ||
81 | klog_printf("udebug_rp_mem_write()"); |
81 | klog_printf("udebug_rp_mem_write()"); |
82 | 82 | ||
83 | uspace_data = (void *)IPC_GET_ARG2(call->data); |
83 | uspace_data = (void *)IPC_GET_ARG2(call->data); |
84 | to_copy = IPC_GET_ARG4(call->data); |
84 | to_copy = IPC_GET_ARG4(call->data); |
85 | 85 | ||
86 | buffer = malloc(to_copy, 0); |
86 | buffer = malloc(to_copy, 0); |
87 | 87 | ||
88 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
88 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
89 | if (rc != 0) { |
89 | if (rc != 0) { |
90 | klog_printf(" - copy failed"); |
90 | klog_printf(" - copy failed"); |
91 | return rc; |
91 | return rc; |
92 | } |
92 | } |
93 | 93 | ||
94 | call->buffer = buffer; |
94 | call->buffer = buffer; |
95 | 95 | ||
96 | klog_printf(" - done"); |
96 | klog_printf(" - done"); |
97 | return 0; |
97 | return 0; |
98 | } |
98 | } |
99 | 99 | ||
100 | 100 | ||
101 | int udebug_request_preprocess(call_t *call, phone_t *phone) |
101 | int udebug_request_preprocess(call_t *call, phone_t *phone) |
102 | { |
102 | { |
103 | int rc; |
103 | int rc; |
104 | 104 | ||
105 | switch (IPC_GET_ARG1(call->data)) { |
105 | switch (IPC_GET_ARG1(call->data)) { |
106 | case UDEBUG_M_REGS_WRITE: |
106 | case UDEBUG_M_REGS_WRITE: |
107 | rc = udebug_rp_regs_write(call, phone); |
107 | rc = udebug_rp_regs_write(call, phone); |
108 | return rc; |
108 | return rc; |
109 | case UDEBUG_M_MEM_WRITE: |
109 | case UDEBUG_M_MEM_WRITE: |
110 | rc = udebug_rp_mem_write(call, phone); |
110 | rc = udebug_rp_mem_write(call, phone); |
111 | return rc; |
111 | return rc; |
112 | default: |
112 | default: |
113 | break; |
113 | break; |
114 | } |
114 | } |
115 | 115 | ||
116 | return 0; |
116 | return 0; |
117 | } |
117 | } |
118 | 118 | ||
119 | static void udebug_receive_begin(call_t *call) |
119 | static void udebug_receive_begin(call_t *call) |
120 | { |
120 | { |
121 | int rc; |
121 | int rc; |
122 | 122 | ||
123 | rc = udebug_begin(call); |
123 | rc = udebug_begin(call); |
124 | if (rc < 0) { |
124 | if (rc < 0) { |
125 | IPC_SET_RETVAL(call->data, rc); |
125 | IPC_SET_RETVAL(call->data, rc); |
126 | ipc_answer(&TASK->kernel_box, call); |
126 | ipc_answer(&TASK->kernel_box, call); |
127 | return; |
127 | return; |
128 | } |
128 | } |
129 | 129 | ||
130 | if (rc != 0) { |
130 | if (rc != 0) { |
131 | IPC_SET_RETVAL(call->data, 0); |
131 | IPC_SET_RETVAL(call->data, 0); |
132 | ipc_answer(&TASK->kernel_box, call); |
132 | ipc_answer(&TASK->kernel_box, call); |
133 | } |
133 | } |
134 | } |
134 | } |
135 | 135 | ||
136 | static void udebug_receive_end(call_t *call) |
136 | static void udebug_receive_end(call_t *call) |
137 | { |
137 | { |
138 | int rc; |
138 | int rc; |
139 | 139 | ||
140 | rc = udebug_end(); |
140 | rc = udebug_end(); |
141 | 141 | ||
142 | IPC_SET_RETVAL(call->data, rc); |
142 | IPC_SET_RETVAL(call->data, rc); |
143 | ipc_answer(&TASK->kernel_box, call); |
143 | ipc_answer(&TASK->kernel_box, call); |
144 | } |
144 | } |
145 | 145 | ||
146 | static void udebug_receive_set_evmask(call_t *call) |
146 | static void udebug_receive_set_evmask(call_t *call) |
147 | { |
147 | { |
148 | int rc; |
148 | int rc; |
149 | udebug_evmask_t mask; |
149 | udebug_evmask_t mask; |
150 | 150 | ||
151 | mask = IPC_GET_ARG2(call->data); |
151 | mask = IPC_GET_ARG2(call->data); |
152 | rc = udebug_set_evmask(mask); |
152 | rc = udebug_set_evmask(mask); |
153 | 153 | ||
154 | IPC_SET_RETVAL(call->data, rc); |
154 | IPC_SET_RETVAL(call->data, rc); |
155 | ipc_answer(&TASK->kernel_box, call); |
155 | ipc_answer(&TASK->kernel_box, call); |
156 | } |
156 | } |
157 | 157 | ||
158 | 158 | ||
159 | static void udebug_receive_go(call_t *call) |
159 | static void udebug_receive_go(call_t *call) |
160 | { |
160 | { |
161 | thread_t *t; |
161 | thread_t *t; |
162 | int rc; |
162 | int rc; |
163 | 163 | ||
164 | //klog_printf("debug_go()"); |
164 | //klog_printf("debug_go()"); |
165 | 165 | ||
166 | t = (thread_t *)IPC_GET_ARG2(call->data); |
166 | t = (thread_t *)IPC_GET_ARG2(call->data); |
167 | 167 | ||
168 | rc = udebug_go(t, call); |
168 | rc = udebug_go(t, call); |
169 | if (rc < 0) { |
169 | if (rc < 0) { |
170 | IPC_SET_RETVAL(call->data, rc); |
170 | IPC_SET_RETVAL(call->data, rc); |
171 | ipc_answer(&TASK->kernel_box, call); |
171 | ipc_answer(&TASK->kernel_box, call); |
172 | return; |
172 | return; |
173 | } |
173 | } |
174 | } |
174 | } |
175 | 175 | ||
176 | static void udebug_receive_stop(call_t *call) |
176 | static void udebug_receive_stop(call_t *call) |
177 | { |
177 | { |
178 | thread_t *t; |
178 | thread_t *t; |
179 | int rc; |
179 | int rc; |
180 | 180 | ||
181 | klog_printf("debug_stop()"); |
181 | klog_printf("debug_stop()"); |
182 | 182 | ||
183 | t = (thread_t *)IPC_GET_ARG2(call->data); |
183 | t = (thread_t *)IPC_GET_ARG2(call->data); |
184 | 184 | ||
185 | rc = udebug_stop(t, call); |
185 | rc = udebug_stop(t, call); |
186 | IPC_SET_RETVAL(call->data, rc); |
186 | IPC_SET_RETVAL(call->data, rc); |
187 | ipc_answer(&TASK->kernel_box, call); |
187 | ipc_answer(&TASK->kernel_box, call); |
188 | } |
188 | } |
189 | 189 | ||
190 | static void udebug_receive_thread_read(call_t *call) |
190 | static void udebug_receive_thread_read(call_t *call) |
191 | { |
191 | { |
192 | unative_t uspace_addr; |
192 | unative_t uspace_addr; |
193 | unative_t to_copy; |
193 | unative_t to_copy; |
194 | unsigned total_bytes; |
194 | unsigned total_bytes; |
195 | unsigned buf_size; |
195 | unsigned buf_size; |
196 | void *buffer; |
196 | void *buffer; |
197 | size_t n; |
197 | size_t n; |
198 | int rc; |
198 | int rc; |
199 | 199 | ||
200 | uspace_addr = IPC_GET_ARG2(call->data); /* Destination address */ |
200 | uspace_addr = IPC_GET_ARG2(call->data); /* Destination address */ |
201 | buf_size = IPC_GET_ARG3(call->data); /* Dest. buffer size */ |
201 | buf_size = IPC_GET_ARG3(call->data); /* Dest. buffer size */ |
202 | 202 | ||
203 | /* |
203 | /* |
204 | * Read thread list. Variable n will be filled with actual number |
204 | * Read thread list. Variable n will be filled with actual number |
205 | * of threads times thread-id size. |
205 | * of threads times thread-id size. |
206 | */ |
206 | */ |
207 | rc = udebug_thread_read(&buffer, buf_size, &n); |
207 | rc = udebug_thread_read(&buffer, buf_size, &n); |
208 | if (rc < 0) { |
208 | if (rc < 0) { |
209 | IPC_SET_RETVAL(call->data, rc); |
209 | IPC_SET_RETVAL(call->data, rc); |
210 | ipc_answer(&TASK->kernel_box, call); |
210 | ipc_answer(&TASK->kernel_box, call); |
211 | return; |
211 | return; |
212 | } |
212 | } |
213 | 213 | ||
214 | total_bytes = n; |
214 | total_bytes = n; |
215 | 215 | ||
216 | /* Copy MAX(buf_size, total_bytes) bytes */ |
216 | /* Copy MAX(buf_size, total_bytes) bytes */ |
217 | 217 | ||
218 | if (buf_size > total_bytes) |
218 | if (buf_size > total_bytes) |
219 | to_copy = total_bytes; |
219 | to_copy = total_bytes; |
220 | else |
220 | else |
221 | to_copy = buf_size; |
221 | to_copy = buf_size; |
222 | 222 | ||
223 | /* |
223 | /* |
224 | * Make use of call->buffer to transfer data to caller's userspace |
224 | * Make use of call->buffer to transfer data to caller's userspace |
225 | */ |
225 | */ |
226 | 226 | ||
227 | IPC_SET_RETVAL(call->data, 0); |
227 | IPC_SET_RETVAL(call->data, 0); |
228 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
228 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
229 | same code in process_answer() can be used |
229 | same code in process_answer() can be used |
230 | (no way to distinguish method in answer) */ |
230 | (no way to distinguish method in answer) */ |
231 | IPC_SET_ARG1(call->data, uspace_addr); |
231 | IPC_SET_ARG1(call->data, uspace_addr); |
232 | IPC_SET_ARG2(call->data, to_copy); |
232 | IPC_SET_ARG2(call->data, to_copy); |
233 | 233 | ||
234 | IPC_SET_ARG3(call->data, total_bytes); |
234 | IPC_SET_ARG3(call->data, total_bytes); |
235 | call->buffer = buffer; |
235 | call->buffer = buffer; |
236 | 236 | ||
237 | ipc_answer(&TASK->kernel_box, call); |
237 | ipc_answer(&TASK->kernel_box, call); |
238 | } |
238 | } |
239 | 239 | ||
240 | static void udebug_receive_args_read(call_t *call) |
240 | static void udebug_receive_args_read(call_t *call) |
241 | { |
241 | { |
242 | thread_t *t; |
242 | thread_t *t; |
243 | unative_t uspace_addr; |
243 | unative_t uspace_addr; |
244 | int rc; |
244 | int rc; |
245 | void *buffer; |
245 | void *buffer; |
246 | 246 | ||
247 | t = (thread_t *)IPC_GET_ARG2(call->data); |
247 | t = (thread_t *)IPC_GET_ARG2(call->data); |
248 | 248 | ||
249 | rc = udebug_args_read(t, &buffer); |
249 | rc = udebug_args_read(t, &buffer); |
250 | if (rc != EOK) { |
250 | if (rc != EOK) { |
251 | IPC_SET_RETVAL(call->data, rc); |
251 | IPC_SET_RETVAL(call->data, rc); |
252 | ipc_answer(&TASK->kernel_box, call); |
252 | ipc_answer(&TASK->kernel_box, call); |
253 | return; |
253 | return; |
254 | } |
254 | } |
255 | 255 | ||
256 | /* |
256 | /* |
257 | * Make use of call->buffer to transfer data to caller's userspace |
257 | * Make use of call->buffer to transfer data to caller's userspace |
258 | */ |
258 | */ |
259 | 259 | ||
260 | uspace_addr = IPC_GET_ARG3(call->data); |
260 | uspace_addr = IPC_GET_ARG3(call->data); |
261 | 261 | ||
262 | IPC_SET_RETVAL(call->data, 0); |
262 | IPC_SET_RETVAL(call->data, 0); |
263 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
263 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
264 | same code in process_answer() can be used |
264 | same code in process_answer() can be used |
265 | (no way to distinguish method in answer) */ |
265 | (no way to distinguish method in answer) */ |
266 | IPC_SET_ARG1(call->data, uspace_addr); |
266 | IPC_SET_ARG1(call->data, uspace_addr); |
267 | IPC_SET_ARG2(call->data, 6 * sizeof(unative_t)); |
267 | IPC_SET_ARG2(call->data, 6 * sizeof(unative_t)); |
268 | call->buffer = buffer; |
268 | call->buffer = buffer; |
269 | 269 | ||
270 | ipc_answer(&TASK->kernel_box, call); |
270 | ipc_answer(&TASK->kernel_box, call); |
271 | } |
271 | } |
272 | 272 | ||
273 | static void udebug_receive_regs_read(call_t *call) |
273 | static void udebug_receive_regs_read(call_t *call) |
274 | { |
274 | { |
275 | thread_t *t; |
275 | thread_t *t; |
276 | unative_t uspace_addr; |
276 | unative_t uspace_addr; |
277 | unative_t to_copy; |
277 | unative_t to_copy; |
278 | void *buffer; |
278 | void *buffer; |
279 | int rc; |
279 | int rc; |
280 | 280 | ||
281 | klog_printf("debug_regs_read()"); |
281 | klog_printf("debug_regs_read()"); |
282 | 282 | ||
283 | t = (thread_t *) IPC_GET_ARG2(call->data); |
283 | t = (thread_t *) IPC_GET_ARG2(call->data); |
284 | buffer = malloc(sizeof(istate_t), 0); |
284 | buffer = malloc(sizeof(istate_t), 0); |
285 | 285 | ||
286 | rc = udebug_regs_read(t, buffer); |
286 | rc = udebug_regs_read(t, buffer); |
287 | if (rc < 0) { |
287 | if (rc < 0) { |
288 | IPC_SET_RETVAL(call->data, rc); |
288 | IPC_SET_RETVAL(call->data, rc); |
289 | ipc_answer(&TASK->kernel_box, call); |
289 | ipc_answer(&TASK->kernel_box, call); |
290 | return; |
290 | return; |
291 | } |
291 | } |
292 | 292 | ||
293 | /* |
293 | /* |
294 | * Make use of call->buffer to transfer data to caller's userspace |
294 | * Make use of call->buffer to transfer data to caller's userspace |
295 | */ |
295 | */ |
296 | 296 | ||
297 | uspace_addr = IPC_GET_ARG3(call->data); |
297 | uspace_addr = IPC_GET_ARG3(call->data); |
298 | to_copy = sizeof(istate_t); |
298 | to_copy = sizeof(istate_t); |
299 | 299 | ||
300 | IPC_SET_RETVAL(call->data, 0); |
300 | IPC_SET_RETVAL(call->data, 0); |
301 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
301 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
302 | same code in process_answer() can be used |
302 | same code in process_answer() can be used |
303 | (no way to distinguish method in answer) */ |
303 | (no way to distinguish method in answer) */ |
304 | IPC_SET_ARG1(call->data, uspace_addr); |
304 | IPC_SET_ARG1(call->data, uspace_addr); |
305 | IPC_SET_ARG2(call->data, to_copy); |
305 | IPC_SET_ARG2(call->data, to_copy); |
306 | 306 | ||
307 | call->buffer = buffer; |
307 | call->buffer = buffer; |
308 | 308 | ||
309 | ipc_answer(&TASK->kernel_box, call); |
309 | ipc_answer(&TASK->kernel_box, call); |
310 | } |
310 | } |
311 | 311 | ||
312 | static void udebug_receive_regs_write(call_t *call) |
312 | static void udebug_receive_regs_write(call_t *call) |
313 | { |
313 | { |
314 | thread_t *t; |
314 | thread_t *t; |
315 | void *uspace_data; |
315 | void *uspace_data; |
316 | int rc; |
316 | int rc; |
317 | 317 | ||
318 | t = (thread_t *) IPC_GET_ARG2(call->data); |
318 | t = (thread_t *) IPC_GET_ARG2(call->data); |
319 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
319 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
320 | 320 | ||
321 | rc = udebug_regs_write(t, call->buffer); |
321 | rc = udebug_regs_write(t, call->buffer); |
322 | if (rc < 0) { |
322 | if (rc < 0) { |
323 | IPC_SET_RETVAL(call->data, rc); |
323 | IPC_SET_RETVAL(call->data, rc); |
324 | ipc_answer(&TASK->kernel_box, call); |
324 | ipc_answer(&TASK->kernel_box, call); |
325 | return; |
325 | return; |
326 | } |
326 | } |
327 | 327 | ||
328 | /* Set answer values */ |
328 | /* Set answer values */ |
329 | 329 | ||
330 | IPC_SET_RETVAL(call->data, 0); |
330 | IPC_SET_RETVAL(call->data, 0); |
331 | free(call->buffer); |
331 | free(call->buffer); |
332 | call->buffer = NULL; |
332 | call->buffer = NULL; |
333 | 333 | ||
334 | ipc_answer(&TASK->kernel_box, call); |
334 | ipc_answer(&TASK->kernel_box, call); |
335 | } |
335 | } |
336 | 336 | ||
337 | 337 | ||
338 | static void udebug_receive_mem_read(call_t *call) |
338 | static void udebug_receive_mem_read(call_t *call) |
339 | { |
339 | { |
340 | unative_t uspace_dst; |
340 | unative_t uspace_dst; |
341 | unative_t uspace_src; |
341 | unative_t uspace_src; |
342 | unsigned size; |
342 | unsigned size; |
343 | void *buffer; |
343 | void *buffer; |
344 | int rc; |
344 | int rc; |
345 | 345 | ||
346 | uspace_dst = IPC_GET_ARG2(call->data); |
346 | uspace_dst = IPC_GET_ARG2(call->data); |
347 | uspace_src = IPC_GET_ARG3(call->data); |
347 | uspace_src = IPC_GET_ARG3(call->data); |
348 | size = IPC_GET_ARG4(call->data); |
348 | size = IPC_GET_ARG4(call->data); |
349 | 349 | ||
350 | rc = udebug_mem_read(uspace_src, size, &buffer); |
350 | rc = udebug_mem_read(uspace_src, size, &buffer); |
351 | if (rc < 0) { |
351 | if (rc < 0) { |
352 | IPC_SET_RETVAL(call->data, rc); |
352 | IPC_SET_RETVAL(call->data, rc); |
353 | ipc_answer(&TASK->kernel_box, call); |
353 | ipc_answer(&TASK->kernel_box, call); |
354 | return; |
354 | return; |
355 | } |
355 | } |
356 | 356 | ||
357 | IPC_SET_RETVAL(call->data, 0); |
357 | IPC_SET_RETVAL(call->data, 0); |
358 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
358 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
359 | same code in process_answer() can be used |
359 | same code in process_answer() can be used |
360 | (no way to distinguish method in answer) */ |
360 | (no way to distinguish method in answer) */ |
361 | IPC_SET_ARG1(call->data, uspace_dst); |
361 | IPC_SET_ARG1(call->data, uspace_dst); |
362 | IPC_SET_ARG2(call->data, size); |
362 | IPC_SET_ARG2(call->data, size); |
363 | call->buffer = buffer; |
363 | call->buffer = buffer; |
364 | 364 | ||
365 | ipc_answer(&TASK->kernel_box, call); |
365 | ipc_answer(&TASK->kernel_box, call); |
366 | } |
366 | } |
367 | 367 | ||
368 | static void udebug_receive_mem_write(call_t *call) |
368 | static void udebug_receive_mem_write(call_t *call) |
369 | { |
369 | { |
370 | unative_t uspace_dst; |
370 | unative_t uspace_dst; |
371 | unsigned size; |
371 | unsigned size; |
372 | int rc; |
372 | int rc; |
373 | 373 | ||
374 | klog_printf("udebug_receive_mem_write()"); |
374 | klog_printf("udebug_receive_mem_write()"); |
375 | 375 | ||
376 | uspace_dst = IPC_GET_ARG3(call->data); |
376 | uspace_dst = IPC_GET_ARG3(call->data); |
377 | size = IPC_GET_ARG4(call->data); |
377 | size = IPC_GET_ARG4(call->data); |
378 | 378 | ||
379 | rc = udebug_mem_write(uspace_dst, call->buffer, size); |
379 | rc = udebug_mem_write(uspace_dst, call->buffer, size); |
380 | if (rc < 0) { |
380 | if (rc < 0) { |
381 | IPC_SET_RETVAL(call->data, rc); |
381 | IPC_SET_RETVAL(call->data, rc); |
382 | ipc_answer(&TASK->kernel_box, call); |
382 | ipc_answer(&TASK->kernel_box, call); |
383 | return; |
383 | return; |
384 | } |
384 | } |
385 | 385 | ||
386 | IPC_SET_RETVAL(call->data, 0); |
386 | IPC_SET_RETVAL(call->data, 0); |
387 | free(call->buffer); |
387 | free(call->buffer); |
388 | call->buffer = NULL; |
388 | call->buffer = NULL; |
389 | 389 | ||
390 | ipc_answer(&TASK->kernel_box, call); |
390 | ipc_answer(&TASK->kernel_box, call); |
391 | } |
391 | } |
392 | 392 | ||
393 | 393 | ||
394 | /** |
394 | /** |
395 | * Handle a debug call received on the kernel answerbox. |
395 | * Handle a debug call received on the kernel answerbox. |
396 | * |
396 | * |
397 | * This is called by the kbox servicing thread. |
397 | * This is called by the kbox servicing thread. |
398 | */ |
398 | */ |
399 | void udebug_call_receive(call_t *call) |
399 | void udebug_call_receive(call_t *call) |
400 | { |
400 | { |
401 | int debug_method; |
401 | int debug_method; |
402 | 402 | ||
403 | debug_method = IPC_GET_ARG1(call->data); |
403 | debug_method = IPC_GET_ARG1(call->data); |
404 | 404 | ||
405 | if (debug_method != UDEBUG_M_BEGIN) { |
405 | if (debug_method != UDEBUG_M_BEGIN) { |
406 | /* |
406 | /* |
407 | * Verify that the sender is this task's debugger. |
407 | * Verify that the sender is this task's debugger. |
408 | * Note that this is the only thread that could change |
408 | * Note that this is the only thread that could change |
409 | * TASK->debugger. Therefore no locking is necessary |
409 | * TASK->debugger. Therefore no locking is necessary |
410 | * and the sender can be safely considered valid until |
410 | * and the sender can be safely considered valid until |
411 | * control exits this function. |
411 | * control exits this function. |
412 | */ |
412 | */ |
413 | if (TASK->debugger != call->sender) { |
413 | if (TASK->udebug.debugger != call->sender) { |
414 | IPC_SET_RETVAL(call->data, EINVAL); |
414 | IPC_SET_RETVAL(call->data, EINVAL); |
415 | ipc_answer(&TASK->kernel_box, call); |
415 | ipc_answer(&TASK->kernel_box, call); |
416 | return; |
416 | return; |
417 | } |
417 | } |
418 | } |
418 | } |
419 | 419 | ||
420 | switch (debug_method) { |
420 | switch (debug_method) { |
421 | case UDEBUG_M_BEGIN: |
421 | case UDEBUG_M_BEGIN: |
422 | udebug_receive_begin(call); |
422 | udebug_receive_begin(call); |
423 | break; |
423 | break; |
424 | case UDEBUG_M_END: |
424 | case UDEBUG_M_END: |
425 | udebug_receive_end(call); |
425 | udebug_receive_end(call); |
426 | break; |
426 | break; |
427 | case UDEBUG_M_SET_EVMASK: |
427 | case UDEBUG_M_SET_EVMASK: |
428 | udebug_receive_set_evmask(call); |
428 | udebug_receive_set_evmask(call); |
429 | break; |
429 | break; |
430 | case UDEBUG_M_GO: |
430 | case UDEBUG_M_GO: |
431 | udebug_receive_go(call); |
431 | udebug_receive_go(call); |
432 | break; |
432 | break; |
433 | case UDEBUG_M_STOP: |
433 | case UDEBUG_M_STOP: |
434 | udebug_receive_stop(call); |
434 | udebug_receive_stop(call); |
435 | break; |
435 | break; |
436 | case UDEBUG_M_THREAD_READ: |
436 | case UDEBUG_M_THREAD_READ: |
437 | udebug_receive_thread_read(call); |
437 | udebug_receive_thread_read(call); |
438 | break; |
438 | break; |
439 | case UDEBUG_M_ARGS_READ: |
439 | case UDEBUG_M_ARGS_READ: |
440 | udebug_receive_args_read(call); |
440 | udebug_receive_args_read(call); |
441 | break; |
441 | break; |
442 | case UDEBUG_M_REGS_READ: |
442 | case UDEBUG_M_REGS_READ: |
443 | udebug_receive_regs_read(call); |
443 | udebug_receive_regs_read(call); |
444 | break; |
444 | break; |
445 | case UDEBUG_M_REGS_WRITE: |
445 | case UDEBUG_M_REGS_WRITE: |
446 | udebug_receive_regs_write(call); |
446 | udebug_receive_regs_write(call); |
447 | break; |
447 | break; |
448 | case UDEBUG_M_MEM_READ: |
448 | case UDEBUG_M_MEM_READ: |
449 | udebug_receive_mem_read(call); |
449 | udebug_receive_mem_read(call); |
450 | break; |
450 | break; |
451 | case UDEBUG_M_MEM_WRITE: |
451 | case UDEBUG_M_MEM_WRITE: |
452 | udebug_receive_mem_write(call); |
452 | udebug_receive_mem_write(call); |
453 | break; |
453 | break; |
454 | } |
454 | } |
455 | } |
455 | } |
456 | 456 | ||
457 | /** @} |
457 | /** @} |
458 | */ |
458 | */ |
459 | 459 |