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- | 1 | /* |
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- | 2 | * Copyright (c) 2008 Jiri Svoboda |
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- | 3 | * All rights reserved. |
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- | 4 | * |
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- | 5 | * Redistribution and use in source and binary forms, with or without |
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- | 6 | * modification, are permitted provided that the following conditions |
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- | 7 | * are met: |
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- | 8 | * |
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- | 9 | * - Redistributions of source code must retain the above copyright |
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- | 10 | * notice, this list of conditions and the following disclaimer. |
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- | 11 | * - Redistributions in binary form must reproduce the above copyright |
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- | 12 | * notice, this list of conditions and the following disclaimer in the |
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- | 13 | * documentation and/or other materials provided with the distribution. |
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- | 14 | * - The name of the author may not be used to endorse or promote products |
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- | 15 | * derived from this software without specific prior written permission. |
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- | 16 | * |
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- | 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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- | 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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- | 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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- | 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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- | 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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- | 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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- | 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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- | 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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- | 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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- | 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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- | 27 | */ |
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- | 28 | ||
1 | /** @addtogroup generic |
29 | /** @addtogroup generic |
2 | * @{ |
30 | * @{ |
3 | */ |
31 | */ |
4 | 32 | ||
5 | /** |
33 | /** |
6 | * @file |
34 | * @file |
7 | * @brief Tdebug. |
35 | * @brief Udebug IPC message handling. |
8 | */ |
36 | */ |
9 | 37 | ||
10 | #include <console/klog.h> |
38 | #include <console/klog.h> |
11 | #include <proc/task.h> |
39 | #include <proc/task.h> |
12 | #include <proc/thread.h> |
40 | #include <proc/thread.h> |
13 | #include <arch.h> |
41 | #include <arch.h> |
14 | #include <errno.h> |
42 | #include <errno.h> |
15 | #include <ipc/ipc.h> |
43 | #include <ipc/ipc.h> |
16 | #include <syscall/copy.h> |
44 | #include <syscall/copy.h> |
17 | #include <udebug/udebug.h> |
45 | #include <udebug/udebug.h> |
18 | #include <udebug/udebug_ops.h> |
46 | #include <udebug/udebug_ops.h> |
19 | #include <udebug/udebug_ipc.h> |
47 | #include <udebug/udebug_ipc.h> |
20 | 48 | ||
21 | 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) |
22 | { |
50 | { |
23 | void *uspace_data; |
51 | void *uspace_data; |
24 | unative_t to_copy; |
52 | unative_t to_copy; |
25 | int rc; |
53 | int rc; |
26 | void *buffer; |
54 | void *buffer; |
27 | 55 | ||
28 | klog_printf("debug_regs_write()"); |
56 | klog_printf("debug_regs_write()"); |
29 | 57 | ||
30 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
58 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
31 | to_copy = IPC_GET_ARG4(call->data); |
59 | to_copy = IPC_GET_ARG4(call->data); |
32 | if (to_copy > sizeof(istate_t)) to_copy = sizeof(istate_t); |
60 | if (to_copy > sizeof(istate_t)) to_copy = sizeof(istate_t); |
33 | 61 | ||
34 | buffer = malloc(to_copy, 0); // ??? |
62 | buffer = malloc(to_copy, 0); // ??? |
35 | 63 | ||
36 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
64 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
37 | if (rc != 0) { |
65 | if (rc != 0) { |
38 | klog_printf("debug_regs_write() - copy failed"); |
66 | klog_printf("debug_regs_write() - copy failed"); |
39 | return rc; |
67 | return rc; |
40 | } |
68 | } |
41 | 69 | ||
42 | call->buffer = buffer; |
70 | call->buffer = buffer; |
43 | 71 | ||
44 | klog_printf(" - done"); |
72 | klog_printf(" - done"); |
45 | return 0; |
73 | return 0; |
46 | } |
74 | } |
47 | 75 | ||
48 | static int udebug_rp_mem_write(call_t *call, phone_t *phone) |
76 | static int udebug_rp_mem_write(call_t *call, phone_t *phone) |
49 | { |
77 | { |
50 | void *uspace_data; |
78 | void *uspace_data; |
51 | unative_t to_copy; |
79 | unative_t to_copy; |
52 | int rc; |
80 | int rc; |
53 | void *buffer; |
81 | void *buffer; |
54 | 82 | ||
55 | klog_printf("udebug_rp_mem_write()"); |
83 | klog_printf("udebug_rp_mem_write()"); |
56 | 84 | ||
57 | uspace_data = (void *)IPC_GET_ARG2(call->data); |
85 | uspace_data = (void *)IPC_GET_ARG2(call->data); |
58 | to_copy = IPC_GET_ARG4(call->data); |
86 | to_copy = IPC_GET_ARG4(call->data); |
59 | 87 | ||
60 | buffer = malloc(to_copy, 0); // ??? |
88 | buffer = malloc(to_copy, 0); // ??? |
61 | 89 | ||
62 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
90 | rc = copy_from_uspace(buffer, uspace_data, to_copy); |
63 | if (rc != 0) { |
91 | if (rc != 0) { |
64 | klog_printf(" - copy failed"); |
92 | klog_printf(" - copy failed"); |
65 | return rc; |
93 | return rc; |
66 | } |
94 | } |
67 | 95 | ||
68 | call->buffer = buffer; |
96 | call->buffer = buffer; |
69 | 97 | ||
70 | klog_printf(" - done"); |
98 | klog_printf(" - done"); |
71 | return 0; |
99 | return 0; |
72 | } |
100 | } |
73 | 101 | ||
74 | 102 | ||
75 | int udebug_request_preprocess(call_t *call, phone_t *phone) |
103 | int udebug_request_preprocess(call_t *call, phone_t *phone) |
76 | { |
104 | { |
77 | int rc; |
105 | int rc; |
78 | 106 | ||
79 | switch (IPC_GET_ARG1(call->data)) { |
107 | switch (IPC_GET_ARG1(call->data)) { |
80 | case UDEBUG_M_REGS_WRITE: |
108 | case UDEBUG_M_REGS_WRITE: |
81 | rc = udebug_rp_regs_write(call, phone); |
109 | rc = udebug_rp_regs_write(call, phone); |
82 | return rc; |
110 | return rc; |
83 | case UDEBUG_M_MEM_WRITE: |
111 | case UDEBUG_M_MEM_WRITE: |
84 | rc = udebug_rp_mem_write(call, phone); |
112 | rc = udebug_rp_mem_write(call, phone); |
85 | return rc; |
113 | return rc; |
86 | default: |
114 | default: |
87 | break; |
115 | break; |
88 | } |
116 | } |
89 | 117 | ||
90 | return 0; |
118 | return 0; |
91 | } |
119 | } |
92 | 120 | ||
93 | static void udebug_receive_begin(call_t *call) |
121 | static void udebug_receive_begin(call_t *call) |
94 | { |
122 | { |
95 | int rc; |
123 | int rc; |
96 | 124 | ||
97 | rc = udebug_begin(call); |
125 | rc = udebug_begin(call); |
98 | if (rc < 0) { |
126 | if (rc < 0) { |
99 | IPC_SET_RETVAL(call->data, rc); |
127 | IPC_SET_RETVAL(call->data, rc); |
100 | ipc_answer(&TASK->kernel_box, call); |
128 | ipc_answer(&TASK->kernel_box, call); |
101 | return; |
129 | return; |
102 | } |
130 | } |
103 | 131 | ||
104 | if (rc != 0) { |
132 | if (rc != 0) { |
105 | IPC_SET_RETVAL(call->data, 0); |
133 | IPC_SET_RETVAL(call->data, 0); |
106 | ipc_answer(&TASK->kernel_box, call); |
134 | ipc_answer(&TASK->kernel_box, call); |
107 | } |
135 | } |
108 | } |
136 | } |
109 | 137 | ||
110 | static void udebug_receive_end(call_t *call) |
138 | static void udebug_receive_end(call_t *call) |
111 | { |
139 | { |
112 | int rc; |
140 | int rc; |
113 | 141 | ||
114 | rc = udebug_end(); |
142 | rc = udebug_end(); |
115 | 143 | ||
116 | IPC_SET_RETVAL(call->data, rc); |
144 | IPC_SET_RETVAL(call->data, rc); |
117 | ipc_answer(&TASK->kernel_box, call); |
145 | ipc_answer(&TASK->kernel_box, call); |
118 | } |
146 | } |
119 | 147 | ||
120 | static void udebug_receive_go(call_t *call) |
148 | static void udebug_receive_go(call_t *call) |
121 | { |
149 | { |
122 | thread_t *t; |
150 | thread_t *t; |
123 | int rc; |
151 | int rc; |
124 | 152 | ||
125 | klog_printf("debug_go()"); |
153 | klog_printf("debug_go()"); |
126 | 154 | ||
127 | t = (thread_t *)IPC_GET_ARG2(call->data); |
155 | t = (thread_t *)IPC_GET_ARG2(call->data); |
128 | 156 | ||
129 | rc = udebug_go(t, call); |
157 | rc = udebug_go(t, call); |
130 | if (rc < 0) { |
158 | if (rc < 0) { |
131 | IPC_SET_RETVAL(call->data, rc); |
159 | IPC_SET_RETVAL(call->data, rc); |
132 | ipc_answer(&TASK->kernel_box, call); |
160 | ipc_answer(&TASK->kernel_box, call); |
133 | return; |
161 | return; |
134 | } |
162 | } |
135 | } |
163 | } |
136 | 164 | ||
137 | 165 | ||
138 | static void udebug_receive_thread_read(call_t *call) |
166 | static void udebug_receive_thread_read(call_t *call) |
139 | { |
167 | { |
140 | unative_t uspace_addr; |
168 | unative_t uspace_addr; |
141 | unative_t to_copy; |
169 | unative_t to_copy; |
142 | unsigned total_bytes; |
170 | unsigned total_bytes; |
143 | unsigned buf_size; |
171 | unsigned buf_size; |
144 | void *buffer; |
172 | void *buffer; |
145 | size_t n; |
173 | size_t n; |
146 | int rc; |
174 | int rc; |
147 | 175 | ||
148 | rc = udebug_thread_read(&buffer, &n); |
176 | rc = udebug_thread_read(&buffer, &n); |
149 | if (rc < 0) { |
177 | if (rc < 0) { |
150 | IPC_SET_RETVAL(call->data, rc); |
178 | IPC_SET_RETVAL(call->data, rc); |
151 | ipc_answer(&TASK->kernel_box, call); |
179 | ipc_answer(&TASK->kernel_box, call); |
152 | return; |
180 | return; |
153 | } |
181 | } |
154 | 182 | ||
155 | /* |
183 | /* |
156 | * Make use of call->buffer to transfer data to caller's userspace |
184 | * Make use of call->buffer to transfer data to caller's userspace |
157 | */ |
185 | */ |
158 | 186 | ||
159 | uspace_addr = IPC_GET_ARG2(call->data); |
187 | uspace_addr = IPC_GET_ARG2(call->data); |
160 | buf_size = IPC_GET_ARG3(call->data); |
188 | buf_size = IPC_GET_ARG3(call->data); |
161 | 189 | ||
162 | total_bytes = n; |
190 | total_bytes = n; |
163 | 191 | ||
164 | if (buf_size > total_bytes) |
192 | if (buf_size > total_bytes) |
165 | to_copy = total_bytes; |
193 | to_copy = total_bytes; |
166 | else |
194 | else |
167 | to_copy = buf_size; |
195 | to_copy = buf_size; |
168 | 196 | ||
169 | IPC_SET_RETVAL(call->data, 0); |
197 | IPC_SET_RETVAL(call->data, 0); |
170 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
198 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
171 | same code in process_answer() can be used |
199 | same code in process_answer() can be used |
172 | (no way to distinguish method in answer) */ |
200 | (no way to distinguish method in answer) */ |
173 | IPC_SET_ARG1(call->data, uspace_addr); |
201 | IPC_SET_ARG1(call->data, uspace_addr); |
174 | IPC_SET_ARG2(call->data, to_copy); |
202 | IPC_SET_ARG2(call->data, to_copy); |
175 | 203 | ||
176 | IPC_SET_ARG3(call->data, total_bytes); |
204 | IPC_SET_ARG3(call->data, total_bytes); |
177 | call->buffer = buffer; |
205 | call->buffer = buffer; |
178 | 206 | ||
179 | ipc_answer(&TASK->kernel_box, call); |
207 | ipc_answer(&TASK->kernel_box, call); |
180 | } |
208 | } |
181 | 209 | ||
182 | static void udebug_receive_args_read(call_t *call) |
210 | static void udebug_receive_args_read(call_t *call) |
183 | { |
211 | { |
184 | thread_t *t; |
212 | thread_t *t; |
185 | unative_t uspace_addr; |
213 | unative_t uspace_addr; |
186 | int rc; |
214 | int rc; |
187 | void *buffer; |
215 | void *buffer; |
188 | 216 | ||
189 | t = (thread_t *)IPC_GET_ARG2(call->data); |
217 | t = (thread_t *)IPC_GET_ARG2(call->data); |
190 | 218 | ||
191 | rc = udebug_args_read(t, &buffer); |
219 | rc = udebug_args_read(t, &buffer); |
192 | if (rc != EOK) { |
220 | if (rc != EOK) { |
193 | IPC_SET_RETVAL(call->data, rc); |
221 | IPC_SET_RETVAL(call->data, rc); |
194 | ipc_answer(&TASK->kernel_box, call); |
222 | ipc_answer(&TASK->kernel_box, call); |
195 | return; |
223 | return; |
196 | } |
224 | } |
197 | 225 | ||
198 | /* |
226 | /* |
199 | * Make use of call->buffer to transfer data to caller's userspace |
227 | * Make use of call->buffer to transfer data to caller's userspace |
200 | */ |
228 | */ |
201 | 229 | ||
202 | uspace_addr = IPC_GET_ARG3(call->data); |
230 | uspace_addr = IPC_GET_ARG3(call->data); |
203 | 231 | ||
204 | IPC_SET_RETVAL(call->data, 0); |
232 | IPC_SET_RETVAL(call->data, 0); |
205 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
233 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
206 | same code in process_answer() can be used |
234 | same code in process_answer() can be used |
207 | (no way to distinguish method in answer) */ |
235 | (no way to distinguish method in answer) */ |
208 | IPC_SET_ARG1(call->data, uspace_addr); |
236 | IPC_SET_ARG1(call->data, uspace_addr); |
209 | IPC_SET_ARG2(call->data, 6 * sizeof(unative_t)); |
237 | IPC_SET_ARG2(call->data, 6 * sizeof(unative_t)); |
210 | call->buffer = buffer; |
238 | call->buffer = buffer; |
211 | 239 | ||
212 | ipc_answer(&TASK->kernel_box, call); |
240 | ipc_answer(&TASK->kernel_box, call); |
213 | } |
241 | } |
214 | 242 | ||
215 | static void udebug_receive_regs_read(call_t *call) |
243 | static void udebug_receive_regs_read(call_t *call) |
216 | { |
244 | { |
217 | thread_t *t; |
245 | thread_t *t; |
218 | unative_t uspace_addr; |
246 | unative_t uspace_addr; |
219 | unative_t to_copy; |
247 | unative_t to_copy; |
220 | unative_t buf_size; |
248 | unative_t buf_size; |
221 | unative_t total_bytes; |
249 | unative_t total_bytes; |
222 | void *buffer; |
250 | void *buffer; |
223 | int rc; |
251 | int rc; |
224 | size_t n; |
252 | size_t n; |
225 | 253 | ||
226 | klog_printf("debug_regs_read()"); |
254 | klog_printf("debug_regs_read()"); |
227 | 255 | ||
228 | t = (thread_t *) IPC_GET_ARG2(call->data); |
256 | t = (thread_t *) IPC_GET_ARG2(call->data); |
229 | 257 | ||
230 | rc = udebug_regs_read(t, &buffer, &n); |
258 | rc = udebug_regs_read(t, &buffer, &n); |
231 | if (rc < 0) { |
259 | if (rc < 0) { |
232 | IPC_SET_RETVAL(call->data, rc); |
260 | IPC_SET_RETVAL(call->data, rc); |
233 | ipc_answer(&TASK->kernel_box, call); |
261 | ipc_answer(&TASK->kernel_box, call); |
234 | return; |
262 | return; |
235 | } |
263 | } |
236 | 264 | ||
237 | /* |
265 | /* |
238 | * Make use of call->buffer to transfer data to caller's userspace |
266 | * Make use of call->buffer to transfer data to caller's userspace |
239 | */ |
267 | */ |
240 | 268 | ||
241 | uspace_addr = IPC_GET_ARG3(call->data); |
269 | uspace_addr = IPC_GET_ARG3(call->data); |
242 | buf_size = IPC_GET_ARG4(call->data); |
270 | buf_size = IPC_GET_ARG4(call->data); |
243 | 271 | ||
244 | total_bytes = n; |
272 | total_bytes = n; |
245 | 273 | ||
246 | if (buf_size > total_bytes) |
274 | if (buf_size > total_bytes) |
247 | to_copy = total_bytes; |
275 | to_copy = total_bytes; |
248 | else |
276 | else |
249 | to_copy = buf_size; |
277 | to_copy = buf_size; |
250 | 278 | ||
251 | IPC_SET_RETVAL(call->data, 0); |
279 | IPC_SET_RETVAL(call->data, 0); |
252 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
280 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
253 | same code in process_answer() can be used |
281 | same code in process_answer() can be used |
254 | (no way to distinguish method in answer) */ |
282 | (no way to distinguish method in answer) */ |
255 | IPC_SET_ARG1(call->data, uspace_addr); |
283 | IPC_SET_ARG1(call->data, uspace_addr); |
256 | IPC_SET_ARG2(call->data, to_copy); |
284 | IPC_SET_ARG2(call->data, to_copy); |
257 | 285 | ||
258 | IPC_SET_ARG3(call->data, total_bytes); |
286 | IPC_SET_ARG3(call->data, total_bytes); |
259 | call->buffer = buffer; |
287 | call->buffer = buffer; |
260 | 288 | ||
261 | ipc_answer(&TASK->kernel_box, call); |
289 | ipc_answer(&TASK->kernel_box, call); |
262 | } |
290 | } |
263 | 291 | ||
264 | static void udebug_receive_regs_write(call_t *call) |
292 | static void udebug_receive_regs_write(call_t *call) |
265 | { |
293 | { |
266 | thread_t *t; |
294 | thread_t *t; |
267 | void *uspace_data; |
295 | void *uspace_data; |
268 | unative_t to_copy; |
296 | unative_t to_copy; |
269 | int rc; |
297 | int rc; |
270 | 298 | ||
271 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
299 | uspace_data = (void *)IPC_GET_ARG3(call->data); |
272 | to_copy = IPC_GET_ARG4(call->data); |
300 | to_copy = IPC_GET_ARG4(call->data); |
273 | 301 | ||
274 | t = (thread_t *) IPC_GET_ARG2(call->data); |
302 | t = (thread_t *) IPC_GET_ARG2(call->data); |
275 | 303 | ||
276 | rc = udebug_regs_write(t, call->buffer); |
304 | rc = udebug_regs_write(t, call->buffer); |
277 | if (rc < 0) { |
305 | if (rc < 0) { |
278 | IPC_SET_RETVAL(call->data, rc); |
306 | IPC_SET_RETVAL(call->data, rc); |
279 | ipc_answer(&TASK->kernel_box, call); |
307 | ipc_answer(&TASK->kernel_box, call); |
280 | return; |
308 | return; |
281 | } |
309 | } |
282 | 310 | ||
283 | /* Set answer values */ |
311 | /* Set answer values */ |
284 | 312 | ||
285 | IPC_SET_ARG1(call->data, to_copy); |
313 | IPC_SET_ARG1(call->data, to_copy); |
286 | IPC_SET_ARG2(call->data, sizeof(istate_t)); |
314 | IPC_SET_ARG2(call->data, sizeof(istate_t)); |
287 | 315 | ||
288 | IPC_SET_RETVAL(call->data, 0); |
316 | IPC_SET_RETVAL(call->data, 0); |
289 | free(call->buffer); |
317 | free(call->buffer); |
290 | call->buffer = NULL; |
318 | call->buffer = NULL; |
291 | 319 | ||
292 | ipc_answer(&TASK->kernel_box, call); |
320 | ipc_answer(&TASK->kernel_box, call); |
293 | } |
321 | } |
294 | 322 | ||
295 | 323 | ||
296 | static void udebug_receive_mem_read(call_t *call) |
324 | static void udebug_receive_mem_read(call_t *call) |
297 | { |
325 | { |
298 | unative_t uspace_dst; |
326 | unative_t uspace_dst; |
299 | unative_t uspace_src; |
327 | unative_t uspace_src; |
300 | unsigned size; |
328 | unsigned size; |
301 | void *buffer; |
329 | void *buffer; |
302 | int rc; |
330 | int rc; |
303 | 331 | ||
304 | uspace_dst = IPC_GET_ARG2(call->data); |
332 | uspace_dst = IPC_GET_ARG2(call->data); |
305 | uspace_src = IPC_GET_ARG3(call->data); |
333 | uspace_src = IPC_GET_ARG3(call->data); |
306 | size = IPC_GET_ARG4(call->data); |
334 | size = IPC_GET_ARG4(call->data); |
307 | 335 | ||
308 | rc = udebug_mem_read(uspace_src, size, &buffer); |
336 | rc = udebug_mem_read(uspace_src, size, &buffer); |
309 | if (rc < 0) { |
337 | if (rc < 0) { |
310 | IPC_SET_RETVAL(call->data, rc); |
338 | IPC_SET_RETVAL(call->data, rc); |
311 | ipc_answer(&TASK->kernel_box, call); |
339 | ipc_answer(&TASK->kernel_box, call); |
312 | return; |
340 | return; |
313 | } |
341 | } |
314 | 342 | ||
315 | IPC_SET_RETVAL(call->data, 0); |
343 | IPC_SET_RETVAL(call->data, 0); |
316 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
344 | /* ARG1=dest, ARG2=size as in IPC_M_DATA_READ so that |
317 | same code in process_answer() can be used |
345 | same code in process_answer() can be used |
318 | (no way to distinguish method in answer) */ |
346 | (no way to distinguish method in answer) */ |
319 | IPC_SET_ARG1(call->data, uspace_dst); |
347 | IPC_SET_ARG1(call->data, uspace_dst); |
320 | IPC_SET_ARG2(call->data, size); |
348 | IPC_SET_ARG2(call->data, size); |
321 | call->buffer = buffer; |
349 | call->buffer = buffer; |
322 | 350 | ||
323 | ipc_answer(&TASK->kernel_box, call); |
351 | ipc_answer(&TASK->kernel_box, call); |
324 | } |
352 | } |
325 | 353 | ||
326 | static void udebug_receive_mem_write(call_t *call) |
354 | static void udebug_receive_mem_write(call_t *call) |
327 | { |
355 | { |
328 | unative_t uspace_dst; |
356 | unative_t uspace_dst; |
329 | unsigned size; |
357 | unsigned size; |
330 | int rc; |
358 | int rc; |
331 | 359 | ||
332 | klog_printf("udebug_receive_mem_write()"); |
360 | klog_printf("udebug_receive_mem_write()"); |
333 | 361 | ||
334 | uspace_dst = IPC_GET_ARG3(call->data); |
362 | uspace_dst = IPC_GET_ARG3(call->data); |
335 | size = IPC_GET_ARG4(call->data); |
363 | size = IPC_GET_ARG4(call->data); |
336 | 364 | ||
337 | rc = udebug_mem_write(uspace_dst, call->buffer, size); |
365 | rc = udebug_mem_write(uspace_dst, call->buffer, size); |
338 | if (rc < 0) { |
366 | if (rc < 0) { |
339 | IPC_SET_RETVAL(call->data, rc); |
367 | IPC_SET_RETVAL(call->data, rc); |
340 | ipc_answer(&TASK->kernel_box, call); |
368 | ipc_answer(&TASK->kernel_box, call); |
341 | return; |
369 | return; |
342 | } |
370 | } |
343 | 371 | ||
344 | IPC_SET_RETVAL(call->data, 0); |
372 | IPC_SET_RETVAL(call->data, 0); |
345 | free(call->buffer); |
373 | free(call->buffer); |
346 | call->buffer = NULL; |
374 | call->buffer = NULL; |
347 | 375 | ||
348 | ipc_answer(&TASK->kernel_box, call); |
376 | ipc_answer(&TASK->kernel_box, call); |
349 | } |
377 | } |
350 | 378 | ||
351 | 379 | ||
352 | /** |
380 | /** |
353 | * Handle a debug call received on the kernel answerbox. |
381 | * Handle a debug call received on the kernel answerbox. |
354 | * |
382 | * |
355 | * This is called by the kbox servicing thread. |
383 | * This is called by the kbox servicing thread. |
356 | */ |
384 | */ |
357 | void udebug_call_receive(call_t *call) |
385 | void udebug_call_receive(call_t *call) |
358 | { |
386 | { |
359 | int debug_method; |
387 | int debug_method; |
360 | 388 | ||
361 | debug_method = IPC_GET_ARG1(call->data); |
389 | debug_method = IPC_GET_ARG1(call->data); |
362 | 390 | ||
363 | if (debug_method != UDEBUG_M_BEGIN) { |
391 | if (debug_method != UDEBUG_M_BEGIN) { |
364 | /* |
392 | /* |
365 | * Verify that the sender is this task's debugger. |
393 | * Verify that the sender is this task's debugger. |
366 | * Note that this is the only thread that could change |
394 | * Note that this is the only thread that could change |
367 | * TASK->debugger. Therefore no locking is necessary |
395 | * TASK->debugger. Therefore no locking is necessary |
368 | * and the sender can be safely considered valid until |
396 | * and the sender can be safely considered valid until |
369 | * control exits this function. |
397 | * control exits this function. |
370 | */ |
398 | */ |
371 | if (TASK->debugger != call->sender) { |
399 | if (TASK->debugger != call->sender) { |
372 | IPC_SET_RETVAL(call->data, EINVAL); |
400 | IPC_SET_RETVAL(call->data, EINVAL); |
373 | ipc_answer(&TASK->kernel_box, call); |
401 | ipc_answer(&TASK->kernel_box, call); |
374 | return; |
402 | return; |
375 | } |
403 | } |
376 | } |
404 | } |
377 | 405 | ||
378 | switch (debug_method) { |
406 | switch (debug_method) { |
379 | case UDEBUG_M_BEGIN: |
407 | case UDEBUG_M_BEGIN: |
380 | udebug_receive_begin(call); |
408 | udebug_receive_begin(call); |
381 | break; |
409 | break; |
382 | case UDEBUG_M_END: |
410 | case UDEBUG_M_END: |
383 | udebug_receive_end(call); |
411 | udebug_receive_end(call); |
384 | break; |
412 | break; |
385 | case UDEBUG_M_GO: |
413 | case UDEBUG_M_GO: |
386 | udebug_receive_go(call); |
414 | udebug_receive_go(call); |
387 | break; |
415 | break; |
388 | case UDEBUG_M_THREAD_READ: |
416 | case UDEBUG_M_THREAD_READ: |
389 | udebug_receive_thread_read(call); |
417 | udebug_receive_thread_read(call); |
390 | break; |
418 | break; |
391 | case UDEBUG_M_ARGS_READ: |
419 | case UDEBUG_M_ARGS_READ: |
392 | udebug_receive_args_read(call); |
420 | udebug_receive_args_read(call); |
393 | break; |
421 | break; |
394 | case UDEBUG_M_REGS_READ: |
422 | case UDEBUG_M_REGS_READ: |
395 | udebug_receive_regs_read(call); |
423 | udebug_receive_regs_read(call); |
396 | break; |
424 | break; |
397 | case UDEBUG_M_REGS_WRITE: |
425 | case UDEBUG_M_REGS_WRITE: |
398 | udebug_receive_regs_write(call); |
426 | udebug_receive_regs_write(call); |
399 | break; |
427 | break; |
400 | case UDEBUG_M_MEM_READ: |
428 | case UDEBUG_M_MEM_READ: |
401 | udebug_receive_mem_read(call); |
429 | udebug_receive_mem_read(call); |
402 | break; |
430 | break; |
403 | case UDEBUG_M_MEM_WRITE: |
431 | case UDEBUG_M_MEM_WRITE: |
404 | udebug_receive_mem_write(call); |
432 | udebug_receive_mem_write(call); |
405 | break; |
433 | break; |
406 | } |
434 | } |
407 | } |
435 | } |
408 | 436 | ||
409 | /** @} |
437 | /** @} |
410 | */ |
438 | */ |
411 | 439 |