1 | /* |
---|
2 | * sys_display.c - display the current state of a kernel structure on TXT0 |
---|
3 | * |
---|
4 | * Author Alain Greiner (2016,2017,2018,2019,2020) |
---|
5 | * |
---|
6 | * Copyright (c) UPMC Sorbonne Universites |
---|
7 | * |
---|
8 | * This file is part of ALMOS-MKH. |
---|
9 | * |
---|
10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
---|
11 | * under the terms of the GNU General Public License as published by |
---|
12 | * the Free Software Foundation; version 2.0 of the License. |
---|
13 | * |
---|
14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
---|
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
17 | * General Public License for more details. |
---|
18 | * |
---|
19 | * You should have received a copy of the GNU General Public License |
---|
20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
---|
21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
---|
22 | */ |
---|
23 | |
---|
24 | #include <hal_kernel_types.h> |
---|
25 | #include <hal_uspace.h> |
---|
26 | #include <hal_vmm.h> |
---|
27 | #include <errno.h> |
---|
28 | #include <vmm.h> |
---|
29 | #include <cluster.h> |
---|
30 | #include <thread.h> |
---|
31 | #include <process.h> |
---|
32 | #include <string.h> |
---|
33 | #include <shared_syscalls.h> |
---|
34 | #include <remote_barrier.h> |
---|
35 | #include <vfs.h> |
---|
36 | #include <mapper.h> |
---|
37 | #include <ksocket.h> |
---|
38 | #include <syscalls.h> |
---|
39 | |
---|
40 | ///////////////////////////////////////////////////////////////////////////////// |
---|
41 | // This static function returns a printable string for the type of display. |
---|
42 | ///////////////////////////////////////////////////////////////////////////////// |
---|
43 | |
---|
44 | #if DEBUG_SYS_DISPLAY |
---|
45 | static char* display_type_str( uint32_t type ) |
---|
46 | { |
---|
47 | if ( type == DISPLAY_STRING ) return "STRING"; |
---|
48 | else if( type == DISPLAY_VMM ) return "VMM"; |
---|
49 | else if( type == DISPLAY_SCHED ) return "SCHED"; |
---|
50 | else if( type == DISPLAY_CLUSTER_PROCESSES ) return "CLUSTER_PROCESSES"; |
---|
51 | else if( type == DISPLAY_VFS ) return "VFS"; |
---|
52 | else if( type == DISPLAY_CHDEV ) return "CHDEV"; |
---|
53 | else if( type == DISPLAY_TXT_PROCESSES ) return "TXT_PROCESSES"; |
---|
54 | else if( type == DISPLAY_DQDT ) return "DQDT"; |
---|
55 | else if( type == DISPLAY_BUSYLOCKS ) return "BUSYLOCKS"; |
---|
56 | else if( type == DISPLAY_MAPPER ) return "MAPPER"; |
---|
57 | else if( type == DISPLAY_BARRIER ) return "BARRIER"; |
---|
58 | else if( type == DISPLAY_FAT ) return "FAT"; |
---|
59 | else if( type == DISPLAY_SOCKET ) return "SOCKET"; |
---|
60 | else if( type == DISPLAY_FD ) return "FD"; |
---|
61 | else if( type == DISPLAY_WINDOWS ) return "WINDOWS"; |
---|
62 | else return "undefined"; |
---|
63 | } |
---|
64 | #endif |
---|
65 | |
---|
66 | ///////////////////////////// |
---|
67 | int sys_display( reg_t type, |
---|
68 | reg_t arg0, |
---|
69 | reg_t arg1, |
---|
70 | reg_t arg2 ) |
---|
71 | { |
---|
72 | |
---|
73 | error_t error; |
---|
74 | vseg_t * vseg; |
---|
75 | |
---|
76 | thread_t * this = CURRENT_THREAD; |
---|
77 | process_t * process = this->process; |
---|
78 | |
---|
79 | #if (DEBUG_SYS_DISPLAY || CONFIG_INSTRUMENTATION_SYSCALLS) |
---|
80 | uint64_t tm_start = hal_get_cycles(); |
---|
81 | #endif |
---|
82 | |
---|
83 | #if DEBUG_SYS_DISPLAY |
---|
84 | tm_start = hal_get_cycles(); |
---|
85 | if( DEBUG_SYS_DISPLAY < tm_start ) |
---|
86 | printk("\n[%s] thread[%x,%x] enter / type %s / arg0 %x / arg1 %x / arg2 %x / cycle = %d\n", |
---|
87 | __FUNCTION__, process->pid, this->trdid, display_type_str(type), |
---|
88 | (uint32_t)arg0, (uint32_t)arg1, (uint32_t)arg2, (uint32_t)tm_start ); |
---|
89 | #endif |
---|
90 | |
---|
91 | switch( type ) |
---|
92 | { |
---|
93 | //////////////////// |
---|
94 | case DISPLAY_STRING: |
---|
95 | { |
---|
96 | char kbuf[512]; |
---|
97 | uint32_t length; |
---|
98 | |
---|
99 | char * string = (char *)arg0; |
---|
100 | |
---|
101 | // check string in user space |
---|
102 | error = vmm_get_vseg( process , (intptr_t)arg0 , &vseg ); |
---|
103 | if( error ) |
---|
104 | { |
---|
105 | |
---|
106 | #if DEBUG_SYSCALLS_ERROR |
---|
107 | printk("\n[ERROR] in %s for STRING : string buffer %x unmapped\n", |
---|
108 | __FUNCTION__ , (intptr_t)arg0 ); |
---|
109 | #endif |
---|
110 | this->errno = EINVAL; |
---|
111 | return -1; |
---|
112 | } |
---|
113 | |
---|
114 | // ckeck string length |
---|
115 | length = hal_strlen_from_uspace( string ); |
---|
116 | if( length >= 512 ) |
---|
117 | { |
---|
118 | |
---|
119 | #if DEBUG_SYSCALLS_ERROR |
---|
120 | printk("\n[ERROR] in %s STRING : string length %d too large\n", |
---|
121 | __FUNCTION__ , length ); |
---|
122 | #endif |
---|
123 | this->errno = EINVAL; |
---|
124 | return -1; |
---|
125 | } |
---|
126 | |
---|
127 | // copy string to kernel space |
---|
128 | hal_strcpy_from_uspace( XPTR( local_cxy , kbuf ), |
---|
129 | string, |
---|
130 | 512 ); |
---|
131 | |
---|
132 | // print message on TXT0 kernel terminal |
---|
133 | printk("\n%s / cycle %d\n", kbuf, (uint32_t)hal_get_cycles() ); |
---|
134 | |
---|
135 | break; |
---|
136 | } |
---|
137 | ///////////////// |
---|
138 | case DISPLAY_VMM: |
---|
139 | { |
---|
140 | cxy_t cxy = (cxy_t)arg0; |
---|
141 | pid_t pid = (pid_t)arg1; |
---|
142 | bool_t mapping = (arg2 != 0); |
---|
143 | |
---|
144 | // check cxy argument |
---|
145 | if( cluster_is_active( cxy ) == false ) |
---|
146 | { |
---|
147 | |
---|
148 | #if DEBUG_SYSCALLS_ERROR |
---|
149 | printk("\n[ERROR] in %s VMM : process %x in cluster %x not found\n", |
---|
150 | __FUNCTION__ , pid , cxy ); |
---|
151 | #endif |
---|
152 | this->errno = EINVAL; |
---|
153 | return -1; |
---|
154 | } |
---|
155 | |
---|
156 | // get extended pointer on process PID in cluster CXY |
---|
157 | xptr_t process_xp = cluster_get_process_from_pid_in_cxy( cxy , pid ); |
---|
158 | if( process_xp == XPTR_NULL ) |
---|
159 | { |
---|
160 | |
---|
161 | #if DEBUG_SYSCALLS_ERROR |
---|
162 | printk("\n[ERROR] in %s VMM : process %x in cluster %x not found\n", |
---|
163 | __FUNCTION__ , pid , cxy ); |
---|
164 | #endif |
---|
165 | this->errno = EINVAL; |
---|
166 | return -1; |
---|
167 | } |
---|
168 | |
---|
169 | // call kernel function |
---|
170 | hal_vmm_display( process_xp , mapping ); |
---|
171 | |
---|
172 | break; |
---|
173 | } |
---|
174 | /////////////////// |
---|
175 | case DISPLAY_SCHED: |
---|
176 | { |
---|
177 | cxy_t cxy = (cxy_t)arg0; |
---|
178 | lid_t lid = (lid_t)arg1; |
---|
179 | |
---|
180 | // check cxy argument |
---|
181 | if( cluster_is_active( cxy ) == false ) |
---|
182 | { |
---|
183 | |
---|
184 | #if DEBUG_SYSCALLS_ERROR |
---|
185 | printk("\n[ERROR] in %s SCHED : illegal cxy argument %x\n", |
---|
186 | __FUNCTION__ , cxy ); |
---|
187 | #endif |
---|
188 | this->errno = EINVAL; |
---|
189 | return -1; |
---|
190 | } |
---|
191 | |
---|
192 | // check lid argument |
---|
193 | if( lid >= LOCAL_CLUSTER->cores_nr ) |
---|
194 | { |
---|
195 | |
---|
196 | #if DEBUG_SYSCALLS_ERROR |
---|
197 | printk("\n[ERROR] in %s SCHED : illegal lid argument %x\n", |
---|
198 | __FUNCTION__ , lid ); |
---|
199 | #endif |
---|
200 | this->errno = EINVAL; |
---|
201 | return -1; |
---|
202 | } |
---|
203 | |
---|
204 | // call kernel function |
---|
205 | sched_remote_display( cxy , lid ); |
---|
206 | |
---|
207 | break; |
---|
208 | } |
---|
209 | /////////////////////////////// |
---|
210 | case DISPLAY_CLUSTER_PROCESSES: |
---|
211 | { |
---|
212 | cxy_t cxy = (cxy_t)arg0; |
---|
213 | bool_t owned = (bool_t)arg1; |
---|
214 | |
---|
215 | // check cxy argument |
---|
216 | if( cluster_is_active( cxy ) == false ) |
---|
217 | { |
---|
218 | |
---|
219 | #if DEBUG_SYSCALLS_ERROR |
---|
220 | printk("\n[ERROR] in %s CLUSTER_PROCESSES : illegal cxy argument %x\n", |
---|
221 | __FUNCTION__ , cxy ); |
---|
222 | #endif |
---|
223 | this->errno = EINVAL; |
---|
224 | return -1; |
---|
225 | } |
---|
226 | |
---|
227 | cluster_processes_display( cxy , owned ); |
---|
228 | |
---|
229 | break; |
---|
230 | } |
---|
231 | ///////////////// |
---|
232 | case DISPLAY_VFS: |
---|
233 | { |
---|
234 | vfs_display( process->vfs_root_xp ); |
---|
235 | |
---|
236 | break; |
---|
237 | } |
---|
238 | /////////////////// |
---|
239 | case DISPLAY_CHDEV: |
---|
240 | { |
---|
241 | chdev_dir_display(); |
---|
242 | |
---|
243 | break; |
---|
244 | } |
---|
245 | /////////////////////////// |
---|
246 | case DISPLAY_TXT_PROCESSES: |
---|
247 | { |
---|
248 | uint32_t txt_id = (uint32_t)arg0; |
---|
249 | |
---|
250 | // check argument |
---|
251 | if( txt_id >= LOCAL_CLUSTER->nb_txt_channels ) |
---|
252 | { |
---|
253 | |
---|
254 | #if DEBUG_SYSCALLS_ERROR |
---|
255 | printk("\n[ERROR] in %s TXT_PROCESSES : illegal txt_id argument %d\n", |
---|
256 | __FUNCTION__ , txt_id ); |
---|
257 | #endif |
---|
258 | this->errno = EINVAL; |
---|
259 | return -1; |
---|
260 | } |
---|
261 | |
---|
262 | process_txt_display( txt_id ); |
---|
263 | |
---|
264 | break; |
---|
265 | } |
---|
266 | ////////////////// |
---|
267 | case DISPLAY_DQDT: |
---|
268 | { |
---|
269 | dqdt_display(); |
---|
270 | |
---|
271 | break; |
---|
272 | } |
---|
273 | /////////////////////// |
---|
274 | case DISPLAY_BUSYLOCKS: |
---|
275 | { |
---|
276 | pid_t pid = (pid_t)arg0; |
---|
277 | trdid_t trdid = (trdid_t)arg1; |
---|
278 | |
---|
279 | // get extended pointer on target thread |
---|
280 | xptr_t thread_xp = thread_get_xptr( pid , trdid ); |
---|
281 | |
---|
282 | if( thread_xp == XPTR_NULL ) |
---|
283 | { |
---|
284 | |
---|
285 | #if DEBUG_SYSCALLS_ERROR |
---|
286 | printk("\n[ERROR] in %s BUSYLOCKS : thread[%x,%x] not found\n", |
---|
287 | __FUNCTION__ , pid, trdid ); |
---|
288 | #endif |
---|
289 | this->errno = EINVAL; |
---|
290 | return -1; |
---|
291 | } |
---|
292 | |
---|
293 | thread_display_busylocks( thread_xp , __FUNCTION__ ); |
---|
294 | |
---|
295 | break; |
---|
296 | } |
---|
297 | //////////////////// |
---|
298 | case DISPLAY_MAPPER: |
---|
299 | { |
---|
300 | xptr_t root_inode_xp; |
---|
301 | xptr_t inode_xp; |
---|
302 | cxy_t inode_cxy; |
---|
303 | vfs_inode_t * inode_ptr; |
---|
304 | xptr_t mapper_xp; |
---|
305 | mapper_t * mapper_ptr; |
---|
306 | xptr_t page_xp; |
---|
307 | |
---|
308 | char kbuf[CONFIG_VFS_MAX_PATH_LENGTH]; |
---|
309 | |
---|
310 | char * path = (char *)arg0; |
---|
311 | uint32_t page_id = (uint32_t)arg1; |
---|
312 | uint32_t nbytes = (uint32_t)arg2; |
---|
313 | |
---|
314 | // check pathname length |
---|
315 | if( hal_strlen_from_uspace( path ) >= CONFIG_VFS_MAX_PATH_LENGTH ) |
---|
316 | { |
---|
317 | |
---|
318 | #if DEBUG_SYSCALLS_ERROR |
---|
319 | printk("\n[ERROR] in %s MAPPER : pathname too long\n", |
---|
320 | __FUNCTION__ ); |
---|
321 | #endif |
---|
322 | this->errno = EINVAL; |
---|
323 | return -1; |
---|
324 | } |
---|
325 | |
---|
326 | // check nbytes |
---|
327 | if( nbytes >= 4096 ) |
---|
328 | { |
---|
329 | |
---|
330 | #if DEBUG_SYSCALLS_ERROR |
---|
331 | printk("\n[ERROR] in %s MAPPER : nbytes cannot be larger than 4096\n", |
---|
332 | __FUNCTION__ ); |
---|
333 | #endif |
---|
334 | this->errno = EINVAL; |
---|
335 | return -1; |
---|
336 | } |
---|
337 | |
---|
338 | // copy pathname in kernel space |
---|
339 | hal_strcpy_from_uspace( XPTR( local_cxy , kbuf ), |
---|
340 | path, |
---|
341 | CONFIG_VFS_MAX_PATH_LENGTH ); |
---|
342 | |
---|
343 | // compute root inode for pathname |
---|
344 | if( kbuf[0] == '/' ) // absolute path |
---|
345 | { |
---|
346 | // use extended pointer on VFS root inode |
---|
347 | root_inode_xp = process->vfs_root_xp; |
---|
348 | } |
---|
349 | else // relative path |
---|
350 | { |
---|
351 | // get cluster and local pointer on reference process |
---|
352 | xptr_t ref_xp = process->ref_xp; |
---|
353 | process_t * ref_ptr = (process_t *)GET_PTR( ref_xp ); |
---|
354 | cxy_t ref_cxy = GET_CXY( ref_xp ); |
---|
355 | |
---|
356 | // get extended pointer on CWD inode |
---|
357 | root_inode_xp = hal_remote_l64( XPTR( ref_cxy , &ref_ptr->cwd_xp ) ); |
---|
358 | } |
---|
359 | |
---|
360 | // get extended pointer on target inode |
---|
361 | error = vfs_lookup( root_inode_xp, |
---|
362 | kbuf, |
---|
363 | 0, |
---|
364 | &inode_xp, |
---|
365 | NULL ); |
---|
366 | if( error ) |
---|
367 | { |
---|
368 | |
---|
369 | #if DEBUG_SYSCALLS_ERROR |
---|
370 | printk("\n[ERROR] in %s for MAPPER : cannot found inode <%s>\n", |
---|
371 | __FUNCTION__ , kbuf ); |
---|
372 | #endif |
---|
373 | this->errno = ENFILE; |
---|
374 | return -1; |
---|
375 | } |
---|
376 | |
---|
377 | // get target inode cluster and local pointer |
---|
378 | inode_cxy = GET_CXY( inode_xp ); |
---|
379 | inode_ptr = GET_PTR( inode_xp ); |
---|
380 | |
---|
381 | // get extended pointer on target mapper |
---|
382 | mapper_ptr = hal_remote_lpt( XPTR( inode_cxy , &inode_ptr->mapper ) ); |
---|
383 | mapper_xp = XPTR( inode_cxy , mapper_ptr ); |
---|
384 | |
---|
385 | // get extended pointer on target page |
---|
386 | page_xp = mapper_get_page( mapper_xp , page_id ); |
---|
387 | |
---|
388 | if( page_xp == XPTR_NULL ) |
---|
389 | { |
---|
390 | |
---|
391 | #if DEBUG_SYSCALLS_ERROR |
---|
392 | printk("\n[ERROR] in %s MAPPER : cannot get page %d\n", |
---|
393 | __FUNCTION__ , page_id ); |
---|
394 | #endif |
---|
395 | this->errno = ENFILE; |
---|
396 | return -1; |
---|
397 | } |
---|
398 | |
---|
399 | // display mapper |
---|
400 | mapper_display_page( mapper_xp , page_xp , nbytes ); |
---|
401 | |
---|
402 | |
---|
403 | break; |
---|
404 | } |
---|
405 | ///////////////////// |
---|
406 | case DISPLAY_BARRIER: |
---|
407 | { |
---|
408 | // get target process PID |
---|
409 | pid_t pid = (pid_t)arg0; |
---|
410 | |
---|
411 | // get pointers on owner process |
---|
412 | xptr_t process_xp = cluster_get_reference_process_from_pid( pid ); |
---|
413 | process_t * process_ptr = GET_PTR( process_xp ); |
---|
414 | cxy_t process_cxy = GET_CXY( process_xp ); |
---|
415 | |
---|
416 | if( process_xp == XPTR_NULL ) |
---|
417 | { |
---|
418 | |
---|
419 | #if DEBUG_SYSCALLS_ERROR |
---|
420 | printk("\n[ERROR] in %s BARRIER : process %x not found\n", |
---|
421 | __FUNCTION__ , pid ); |
---|
422 | #endif |
---|
423 | this->errno = EINVAL; |
---|
424 | return -1; |
---|
425 | } |
---|
426 | |
---|
427 | // get extended pointer on root of list of barriers |
---|
428 | xptr_t root_xp = XPTR( process_cxy , &process_ptr->barrier_root ); |
---|
429 | |
---|
430 | if( xlist_is_empty( root_xp ) ) |
---|
431 | { |
---|
432 | |
---|
433 | #if DEBUG_SYSCALLS_ERROR |
---|
434 | printk("\n[ERROR] in %s BARRIER : no registered barrier in process %x\n", |
---|
435 | __FUNCTION__ , pid ); |
---|
436 | #endif |
---|
437 | this->errno = EINVAL; |
---|
438 | return -1; |
---|
439 | } |
---|
440 | |
---|
441 | // get extended pointer on first registered generic barrier descriptor |
---|
442 | xptr_t gen_barrier_xp = XLIST_FIRST( root_xp , generic_barrier_t , list ); |
---|
443 | |
---|
444 | // display barrier state |
---|
445 | generic_barrier_display( gen_barrier_xp ); |
---|
446 | |
---|
447 | break; |
---|
448 | } |
---|
449 | ///////////////// |
---|
450 | case DISPLAY_FAT: |
---|
451 | { |
---|
452 | uint32_t slots = (uint32_t)arg1; |
---|
453 | |
---|
454 | if( slots > 1024 ) |
---|
455 | { |
---|
456 | |
---|
457 | #if DEBUG_SYSCALLS_ERROR |
---|
458 | printk("\n[ERROR] in %s FAT : nb_slots larger than 1024\n", |
---|
459 | __FUNCTION__ ); |
---|
460 | #endif |
---|
461 | this->errno = EINVAL; |
---|
462 | return -1; |
---|
463 | } |
---|
464 | |
---|
465 | if( slots == 0 ) // display fat context in cluster cxy |
---|
466 | { |
---|
467 | uint32_t cxy = (uint32_t)arg0; |
---|
468 | |
---|
469 | if( cluster_is_active( cxy ) == false ) |
---|
470 | { |
---|
471 | |
---|
472 | #if DEBUG_SYSCALLS_ERROR |
---|
473 | printk("\n[ERROR] in %s FAT : illegal cxy argument %x\n", |
---|
474 | __FUNCTION__ , cxy ); |
---|
475 | #endif |
---|
476 | this->errno = EINVAL; |
---|
477 | return -1; |
---|
478 | } |
---|
479 | |
---|
480 | fatfs_display_ctx( cxy ); |
---|
481 | } |
---|
482 | else // display nb_slots in page |
---|
483 | { |
---|
484 | uint32_t min = (uint32_t)arg0; |
---|
485 | |
---|
486 | fatfs_display_fat( min , slots ); |
---|
487 | } |
---|
488 | |
---|
489 | break; |
---|
490 | } |
---|
491 | //////////////////// |
---|
492 | case DISPLAY_SOCKET: |
---|
493 | { |
---|
494 | pid_t pid = (pid_t)arg0; |
---|
495 | trdid_t fdid = (trdid_t)arg1; |
---|
496 | |
---|
497 | // get extended pointer on owner process descriptor |
---|
498 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
---|
499 | |
---|
500 | if( owner_xp == XPTR_NULL ) |
---|
501 | { |
---|
502 | |
---|
503 | #if DEBUG_SYSCALLS_ERROR |
---|
504 | printk("\n[ERROR] in %s for SOCKET : pid %x not found\n", __FUNCTION__ , pid ); |
---|
505 | #endif |
---|
506 | this->errno = EINVAL; |
---|
507 | return -1; |
---|
508 | } |
---|
509 | |
---|
510 | // get extended pointer on file descriptor |
---|
511 | xptr_t file_xp = process_fd_get_xptr_from_owner( owner_xp , fdid ); |
---|
512 | |
---|
513 | if( file_xp == XPTR_NULL ) |
---|
514 | { |
---|
515 | |
---|
516 | #if DEBUG_SYSCALLS_ERROR |
---|
517 | printk("\n[ERROR] in %s for SOCKET : fdid %d not found\n", __FUNCTION__ , fdid ); |
---|
518 | #endif |
---|
519 | this->errno = EINVAL; |
---|
520 | return -1; |
---|
521 | } |
---|
522 | |
---|
523 | // get local pointer and cluster for file |
---|
524 | vfs_file_t * file_ptr = GET_PTR( file_xp ); |
---|
525 | cxy_t file_cxy = GET_CXY( file_xp ); |
---|
526 | |
---|
527 | // get local pointer on socket descriptor |
---|
528 | socket_t * socket = hal_remote_lpt( XPTR( file_cxy , &file_ptr->socket ) ); |
---|
529 | |
---|
530 | // display socket descriptor on TXT0 |
---|
531 | socket_display( XPTR( file_cxy , socket ), __FUNCTION__ , NULL ); |
---|
532 | |
---|
533 | break; |
---|
534 | } |
---|
535 | //////////////// |
---|
536 | case DISPLAY_FD: |
---|
537 | { |
---|
538 | pid_t pid = (pid_t)arg0; |
---|
539 | |
---|
540 | // get extended pointer on owner process descriptor |
---|
541 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
---|
542 | |
---|
543 | if( owner_xp == XPTR_NULL ) |
---|
544 | { |
---|
545 | |
---|
546 | #if DEBUG_SYSCALLS_ERROR |
---|
547 | printk("\n[ERROR] in %s for FD : pid %x not found\n", __FUNCTION__ , pid ); |
---|
548 | #endif |
---|
549 | this->errno = EINVAL; |
---|
550 | return -1; |
---|
551 | } |
---|
552 | |
---|
553 | // display fd_array on TXT0 |
---|
554 | process_fd_display( owner_xp ); |
---|
555 | |
---|
556 | break; |
---|
557 | } |
---|
558 | ///////////////////// |
---|
559 | case DISPLAY_WINDOWS: |
---|
560 | { |
---|
561 | pid_t pid = (pid_t)arg0; |
---|
562 | |
---|
563 | if( pid != 0 ) // only one target process |
---|
564 | { |
---|
565 | // get extended pointer on owner process descriptor |
---|
566 | xptr_t owner_xp = cluster_get_owner_process_from_pid( pid ); |
---|
567 | |
---|
568 | if( owner_xp == XPTR_NULL ) |
---|
569 | { |
---|
570 | |
---|
571 | #if DEBUG_SYSCALLS_ERROR |
---|
572 | printk("\n[ERROR] in %s for FD : pid %x not found\n", __FUNCTION__ , pid ); |
---|
573 | #endif |
---|
574 | this->errno = EINVAL; |
---|
575 | return -1; |
---|
576 | } |
---|
577 | } |
---|
578 | |
---|
579 | // display windows state for one, or for all processes |
---|
580 | dev_fbf_display_windows( pid ); |
---|
581 | |
---|
582 | break; |
---|
583 | } |
---|
584 | //////// |
---|
585 | default: |
---|
586 | { |
---|
587 | |
---|
588 | #if DEBUG_SYSCALLS_ERROR |
---|
589 | printk("\n[ERROR] in %s : undefined display type %d\n", |
---|
590 | __FUNCTION__ , type ); |
---|
591 | #endif |
---|
592 | this->errno = EINVAL; |
---|
593 | return -1; |
---|
594 | } |
---|
595 | } // end switch on type |
---|
596 | |
---|
597 | #if (DEBUG_SYS_DISPLAY || CONFIG_INSTRUMENTATION_SYSCALLS) |
---|
598 | uint64_t tm_end = hal_get_cycles(); |
---|
599 | #endif |
---|
600 | |
---|
601 | #if DEBUG_SYS_DISPLAY |
---|
602 | if( DEBUG_SYS_DISPLAY < tm_end ) |
---|
603 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
604 | __FUNCTION__, process->pid, this->trdid, (uint32_t)tm_end ); |
---|
605 | #endif |
---|
606 | |
---|
607 | #if CONFIG_INSTRUMENTATION_SYSCALLS |
---|
608 | hal_atomic_add( &syscalls_cumul_cost[SYS_DISPLAY] , tm_end - tm_start ); |
---|
609 | hal_atomic_add( &syscalls_occurences[SYS_DISPLAY] , 1 ); |
---|
610 | #endif |
---|
611 | |
---|
612 | return 0; |
---|
613 | |
---|
614 | } // end sys_display() |
---|