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spapr: Don't use spapr_drc_needed() in CAS code
[qemu/kevin.git] / linux-user / mips / cpu_loop.c
blob396367d81d8da94188bad7e5ece7658740fee022
1 /*
2 * qemu user cpu loop
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "qemu/osdep.h"
21 #include "qemu-common.h"
22 #include "qemu.h"
23 #include "cpu_loop-common.h"
24 #include "elf.h"
25 #include "internal.h"
26
27 # ifdef TARGET_ABI_MIPSO32
28 # define MIPS_SYSCALL_NUMBER_UNUSED -1
29 # define MIPS_SYS(name, args) args,
30 static const int8_t mips_syscall_args[] = {
31 MIPS_SYS(sys_syscall , 8) /* 4000 */
32 MIPS_SYS(sys_exit , 1)
33 MIPS_SYS(sys_fork , 0)
34 MIPS_SYS(sys_read , 3)
35 MIPS_SYS(sys_write , 3)
36 MIPS_SYS(sys_open , 3) /* 4005 */
37 MIPS_SYS(sys_close , 1)
38 MIPS_SYS(sys_waitpid , 3)
39 MIPS_SYS(sys_creat , 2)
40 MIPS_SYS(sys_link , 2)
41 MIPS_SYS(sys_unlink , 1) /* 4010 */
42 MIPS_SYS(sys_execve , 0)
43 MIPS_SYS(sys_chdir , 1)
44 MIPS_SYS(sys_time , 1)
45 MIPS_SYS(sys_mknod , 3)
46 MIPS_SYS(sys_chmod , 2) /* 4015 */
47 MIPS_SYS(sys_lchown , 3)
48 MIPS_SYS(sys_ni_syscall , 0)
49 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
50 MIPS_SYS(sys_lseek , 3)
51 MIPS_SYS(sys_getpid , 0) /* 4020 */
52 MIPS_SYS(sys_mount , 5)
53 MIPS_SYS(sys_umount , 1)
54 MIPS_SYS(sys_setuid , 1)
55 MIPS_SYS(sys_getuid , 0)
56 MIPS_SYS(sys_stime , 1) /* 4025 */
57 MIPS_SYS(sys_ptrace , 4)
58 MIPS_SYS(sys_alarm , 1)
59 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
60 MIPS_SYS(sys_pause , 0)
61 MIPS_SYS(sys_utime , 2) /* 4030 */
62 MIPS_SYS(sys_ni_syscall , 0)
63 MIPS_SYS(sys_ni_syscall , 0)
64 MIPS_SYS(sys_access , 2)
65 MIPS_SYS(sys_nice , 1)
66 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
67 MIPS_SYS(sys_sync , 0)
68 MIPS_SYS(sys_kill , 2)
69 MIPS_SYS(sys_rename , 2)
70 MIPS_SYS(sys_mkdir , 2)
71 MIPS_SYS(sys_rmdir , 1) /* 4040 */
72 MIPS_SYS(sys_dup , 1)
73 MIPS_SYS(sys_pipe , 0)
74 MIPS_SYS(sys_times , 1)
75 MIPS_SYS(sys_ni_syscall , 0)
76 MIPS_SYS(sys_brk , 1) /* 4045 */
77 MIPS_SYS(sys_setgid , 1)
78 MIPS_SYS(sys_getgid , 0)
79 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
80 MIPS_SYS(sys_geteuid , 0)
81 MIPS_SYS(sys_getegid , 0) /* 4050 */
82 MIPS_SYS(sys_acct , 0)
83 MIPS_SYS(sys_umount2 , 2)
84 MIPS_SYS(sys_ni_syscall , 0)
85 MIPS_SYS(sys_ioctl , 3)
86 MIPS_SYS(sys_fcntl , 3) /* 4055 */
87 MIPS_SYS(sys_ni_syscall , 2)
88 MIPS_SYS(sys_setpgid , 2)
89 MIPS_SYS(sys_ni_syscall , 0)
90 MIPS_SYS(sys_olduname , 1)
91 MIPS_SYS(sys_umask , 1) /* 4060 */
92 MIPS_SYS(sys_chroot , 1)
93 MIPS_SYS(sys_ustat , 2)
94 MIPS_SYS(sys_dup2 , 2)
95 MIPS_SYS(sys_getppid , 0)
96 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
97 MIPS_SYS(sys_setsid , 0)
98 MIPS_SYS(sys_sigaction , 3)
99 MIPS_SYS(sys_sgetmask , 0)
100 MIPS_SYS(sys_ssetmask , 1)
101 MIPS_SYS(sys_setreuid , 2) /* 4070 */
102 MIPS_SYS(sys_setregid , 2)
103 MIPS_SYS(sys_sigsuspend , 0)
104 MIPS_SYS(sys_sigpending , 1)
105 MIPS_SYS(sys_sethostname , 2)
106 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
107 MIPS_SYS(sys_getrlimit , 2)
108 MIPS_SYS(sys_getrusage , 2)
109 MIPS_SYS(sys_gettimeofday, 2)
110 MIPS_SYS(sys_settimeofday, 2)
111 MIPS_SYS(sys_getgroups , 2) /* 4080 */
112 MIPS_SYS(sys_setgroups , 2)
113 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
114 MIPS_SYS(sys_symlink , 2)
115 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
116 MIPS_SYS(sys_readlink , 3) /* 4085 */
117 MIPS_SYS(sys_uselib , 1)
118 MIPS_SYS(sys_swapon , 2)
119 MIPS_SYS(sys_reboot , 3)
120 MIPS_SYS(old_readdir , 3)
121 MIPS_SYS(old_mmap , 6) /* 4090 */
122 MIPS_SYS(sys_munmap , 2)
123 MIPS_SYS(sys_truncate , 2)
124 MIPS_SYS(sys_ftruncate , 2)
125 MIPS_SYS(sys_fchmod , 2)
126 MIPS_SYS(sys_fchown , 3) /* 4095 */
127 MIPS_SYS(sys_getpriority , 2)
128 MIPS_SYS(sys_setpriority , 3)
129 MIPS_SYS(sys_ni_syscall , 0)
130 MIPS_SYS(sys_statfs , 2)
131 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
132 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
133 MIPS_SYS(sys_socketcall , 2)
134 MIPS_SYS(sys_syslog , 3)
135 MIPS_SYS(sys_setitimer , 3)
136 MIPS_SYS(sys_getitimer , 2) /* 4105 */
137 MIPS_SYS(sys_newstat , 2)
138 MIPS_SYS(sys_newlstat , 2)
139 MIPS_SYS(sys_newfstat , 2)
140 MIPS_SYS(sys_uname , 1)
141 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
142 MIPS_SYS(sys_vhangup , 0)
143 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
144 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
145 MIPS_SYS(sys_wait4 , 4)
146 MIPS_SYS(sys_swapoff , 1) /* 4115 */
147 MIPS_SYS(sys_sysinfo , 1)
148 MIPS_SYS(sys_ipc , 6)
149 MIPS_SYS(sys_fsync , 1)
150 MIPS_SYS(sys_sigreturn , 0)
151 MIPS_SYS(sys_clone , 6) /* 4120 */
152 MIPS_SYS(sys_setdomainname, 2)
153 MIPS_SYS(sys_newuname , 1)
154 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
155 MIPS_SYS(sys_adjtimex , 1)
156 MIPS_SYS(sys_mprotect , 3) /* 4125 */
157 MIPS_SYS(sys_sigprocmask , 3)
158 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
159 MIPS_SYS(sys_init_module , 5)
160 MIPS_SYS(sys_delete_module, 1)
161 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
162 MIPS_SYS(sys_quotactl , 0)
163 MIPS_SYS(sys_getpgid , 1)
164 MIPS_SYS(sys_fchdir , 1)
165 MIPS_SYS(sys_bdflush , 2)
166 MIPS_SYS(sys_sysfs , 3) /* 4135 */
167 MIPS_SYS(sys_personality , 1)
168 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
169 MIPS_SYS(sys_setfsuid , 1)
170 MIPS_SYS(sys_setfsgid , 1)
171 MIPS_SYS(sys_llseek , 5) /* 4140 */
172 MIPS_SYS(sys_getdents , 3)
173 MIPS_SYS(sys_select , 5)
174 MIPS_SYS(sys_flock , 2)
175 MIPS_SYS(sys_msync , 3)
176 MIPS_SYS(sys_readv , 3) /* 4145 */
177 MIPS_SYS(sys_writev , 3)
178 MIPS_SYS(sys_cacheflush , 3)
179 MIPS_SYS(sys_cachectl , 3)
180 MIPS_SYS(sys_sysmips , 4)
181 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
182 MIPS_SYS(sys_getsid , 1)
183 MIPS_SYS(sys_fdatasync , 0)
184 MIPS_SYS(sys_sysctl , 1)
185 MIPS_SYS(sys_mlock , 2)
186 MIPS_SYS(sys_munlock , 2) /* 4155 */
187 MIPS_SYS(sys_mlockall , 1)
188 MIPS_SYS(sys_munlockall , 0)
189 MIPS_SYS(sys_sched_setparam, 2)
190 MIPS_SYS(sys_sched_getparam, 2)
191 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
192 MIPS_SYS(sys_sched_getscheduler, 1)
193 MIPS_SYS(sys_sched_yield , 0)
194 MIPS_SYS(sys_sched_get_priority_max, 1)
195 MIPS_SYS(sys_sched_get_priority_min, 1)
196 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
197 MIPS_SYS(sys_nanosleep, 2)
198 MIPS_SYS(sys_mremap , 5)
199 MIPS_SYS(sys_accept , 3)
200 MIPS_SYS(sys_bind , 3)
201 MIPS_SYS(sys_connect , 3) /* 4170 */
202 MIPS_SYS(sys_getpeername , 3)
203 MIPS_SYS(sys_getsockname , 3)
204 MIPS_SYS(sys_getsockopt , 5)
205 MIPS_SYS(sys_listen , 2)
206 MIPS_SYS(sys_recv , 4) /* 4175 */
207 MIPS_SYS(sys_recvfrom , 6)
208 MIPS_SYS(sys_recvmsg , 3)
209 MIPS_SYS(sys_send , 4)
210 MIPS_SYS(sys_sendmsg , 3)
211 MIPS_SYS(sys_sendto , 6) /* 4180 */
212 MIPS_SYS(sys_setsockopt , 5)
213 MIPS_SYS(sys_shutdown , 2)
214 MIPS_SYS(sys_socket , 3)
215 MIPS_SYS(sys_socketpair , 4)
216 MIPS_SYS(sys_setresuid , 3) /* 4185 */
217 MIPS_SYS(sys_getresuid , 3)
218 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
219 MIPS_SYS(sys_poll , 3)
220 MIPS_SYS(sys_nfsservctl , 3)
221 MIPS_SYS(sys_setresgid , 3) /* 4190 */
222 MIPS_SYS(sys_getresgid , 3)
223 MIPS_SYS(sys_prctl , 5)
224 MIPS_SYS(sys_rt_sigreturn, 0)
225 MIPS_SYS(sys_rt_sigaction, 4)
226 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
227 MIPS_SYS(sys_rt_sigpending, 2)
228 MIPS_SYS(sys_rt_sigtimedwait, 4)
229 MIPS_SYS(sys_rt_sigqueueinfo, 3)
230 MIPS_SYS(sys_rt_sigsuspend, 0)
231 MIPS_SYS(sys_pread64 , 6) /* 4200 */
232 MIPS_SYS(sys_pwrite64 , 6)
233 MIPS_SYS(sys_chown , 3)
234 MIPS_SYS(sys_getcwd , 2)
235 MIPS_SYS(sys_capget , 2)
236 MIPS_SYS(sys_capset , 2) /* 4205 */
237 MIPS_SYS(sys_sigaltstack , 2)
238 MIPS_SYS(sys_sendfile , 4)
239 MIPS_SYS(sys_ni_syscall , 0)
240 MIPS_SYS(sys_ni_syscall , 0)
241 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
242 MIPS_SYS(sys_truncate64 , 4)
243 MIPS_SYS(sys_ftruncate64 , 4)
244 MIPS_SYS(sys_stat64 , 2)
245 MIPS_SYS(sys_lstat64 , 2)
246 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
247 MIPS_SYS(sys_pivot_root , 2)
248 MIPS_SYS(sys_mincore , 3)
249 MIPS_SYS(sys_madvise , 3)
250 MIPS_SYS(sys_getdents64 , 3)
251 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
252 MIPS_SYS(sys_ni_syscall , 0)
253 MIPS_SYS(sys_gettid , 0)
254 MIPS_SYS(sys_readahead , 5)
255 MIPS_SYS(sys_setxattr , 5)
256 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
257 MIPS_SYS(sys_fsetxattr , 5)
258 MIPS_SYS(sys_getxattr , 4)
259 MIPS_SYS(sys_lgetxattr , 4)
260 MIPS_SYS(sys_fgetxattr , 4)
261 MIPS_SYS(sys_listxattr , 3) /* 4230 */
262 MIPS_SYS(sys_llistxattr , 3)
263 MIPS_SYS(sys_flistxattr , 3)
264 MIPS_SYS(sys_removexattr , 2)
265 MIPS_SYS(sys_lremovexattr, 2)
266 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
267 MIPS_SYS(sys_tkill , 2)
268 MIPS_SYS(sys_sendfile64 , 5)
269 MIPS_SYS(sys_futex , 6)
270 MIPS_SYS(sys_sched_setaffinity, 3)
271 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
272 MIPS_SYS(sys_io_setup , 2)
273 MIPS_SYS(sys_io_destroy , 1)
274 MIPS_SYS(sys_io_getevents, 5)
275 MIPS_SYS(sys_io_submit , 3)
276 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
277 MIPS_SYS(sys_exit_group , 1)
278 MIPS_SYS(sys_lookup_dcookie, 3)
279 MIPS_SYS(sys_epoll_create, 1)
280 MIPS_SYS(sys_epoll_ctl , 4)
281 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
282 MIPS_SYS(sys_remap_file_pages, 5)
283 MIPS_SYS(sys_set_tid_address, 1)
284 MIPS_SYS(sys_restart_syscall, 0)
285 MIPS_SYS(sys_fadvise64_64, 7)
286 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
287 MIPS_SYS(sys_fstatfs64 , 2)
288 MIPS_SYS(sys_timer_create, 3)
289 MIPS_SYS(sys_timer_settime, 4)
290 MIPS_SYS(sys_timer_gettime, 2)
291 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
292 MIPS_SYS(sys_timer_delete, 1)
293 MIPS_SYS(sys_clock_settime, 2)
294 MIPS_SYS(sys_clock_gettime, 2)
295 MIPS_SYS(sys_clock_getres, 2)
296 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
297 MIPS_SYS(sys_tgkill , 3)
298 MIPS_SYS(sys_utimes , 2)
299 MIPS_SYS(sys_mbind , 4)
300 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
301 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
302 MIPS_SYS(sys_mq_open , 4)
303 MIPS_SYS(sys_mq_unlink , 1)
304 MIPS_SYS(sys_mq_timedsend, 5)
305 MIPS_SYS(sys_mq_timedreceive, 5)
306 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
307 MIPS_SYS(sys_mq_getsetattr, 3)
308 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
309 MIPS_SYS(sys_waitid , 4)
310 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
311 MIPS_SYS(sys_add_key , 5)
312 MIPS_SYS(sys_request_key, 4)
313 MIPS_SYS(sys_keyctl , 5)
314 MIPS_SYS(sys_set_thread_area, 1)
315 MIPS_SYS(sys_inotify_init, 0)
316 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
317 MIPS_SYS(sys_inotify_rm_watch, 2)
318 MIPS_SYS(sys_migrate_pages, 4)
319 MIPS_SYS(sys_openat, 4)
320 MIPS_SYS(sys_mkdirat, 3)
321 MIPS_SYS(sys_mknodat, 4) /* 4290 */
322 MIPS_SYS(sys_fchownat, 5)
323 MIPS_SYS(sys_futimesat, 3)
324 MIPS_SYS(sys_fstatat64, 4)
325 MIPS_SYS(sys_unlinkat, 3)
326 MIPS_SYS(sys_renameat, 4) /* 4295 */
327 MIPS_SYS(sys_linkat, 5)
328 MIPS_SYS(sys_symlinkat, 3)
329 MIPS_SYS(sys_readlinkat, 4)
330 MIPS_SYS(sys_fchmodat, 3)
331 MIPS_SYS(sys_faccessat, 3) /* 4300 */
332 MIPS_SYS(sys_pselect6, 6)
333 MIPS_SYS(sys_ppoll, 5)
334 MIPS_SYS(sys_unshare, 1)
335 MIPS_SYS(sys_splice, 6)
336 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
337 MIPS_SYS(sys_tee, 4)
338 MIPS_SYS(sys_vmsplice, 4)
339 MIPS_SYS(sys_move_pages, 6)
340 MIPS_SYS(sys_set_robust_list, 2)
341 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
342 MIPS_SYS(sys_kexec_load, 4)
343 MIPS_SYS(sys_getcpu, 3)
344 MIPS_SYS(sys_epoll_pwait, 6)
345 MIPS_SYS(sys_ioprio_set, 3)
346 MIPS_SYS(sys_ioprio_get, 2)
347 MIPS_SYS(sys_utimensat, 4)
348 MIPS_SYS(sys_signalfd, 3)
349 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
350 MIPS_SYS(sys_eventfd, 1)
351 MIPS_SYS(sys_fallocate, 6) /* 4320 */
352 MIPS_SYS(sys_timerfd_create, 2)
353 MIPS_SYS(sys_timerfd_gettime, 2)
354 MIPS_SYS(sys_timerfd_settime, 4)
355 MIPS_SYS(sys_signalfd4, 4)
356 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
357 MIPS_SYS(sys_epoll_create1, 1)
358 MIPS_SYS(sys_dup3, 3)
359 MIPS_SYS(sys_pipe2, 2)
360 MIPS_SYS(sys_inotify_init1, 1)
361 MIPS_SYS(sys_preadv, 5) /* 4330 */
362 MIPS_SYS(sys_pwritev, 5)
363 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
364 MIPS_SYS(sys_perf_event_open, 5)
365 MIPS_SYS(sys_accept4, 4)
366 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
367 MIPS_SYS(sys_fanotify_init, 2)
368 MIPS_SYS(sys_fanotify_mark, 6)
369 MIPS_SYS(sys_prlimit64, 4)
370 MIPS_SYS(sys_name_to_handle_at, 5)
371 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
372 MIPS_SYS(sys_clock_adjtime, 2)
373 MIPS_SYS(sys_syncfs, 1)
374 MIPS_SYS(sys_sendmmsg, 4)
375 MIPS_SYS(sys_setns, 2)
376 MIPS_SYS(sys_process_vm_readv, 6) /* 345 */
377 MIPS_SYS(sys_process_vm_writev, 6)
378 MIPS_SYS(sys_kcmp, 5)
379 MIPS_SYS(sys_finit_module, 3)
380 MIPS_SYS(sys_sched_setattr, 2)
381 MIPS_SYS(sys_sched_getattr, 3) /* 350 */
382 MIPS_SYS(sys_renameat2, 5)
383 MIPS_SYS(sys_seccomp, 3)
384 MIPS_SYS(sys_getrandom, 3)
385 MIPS_SYS(sys_memfd_create, 2)
386 MIPS_SYS(sys_bpf, 3) /* 355 */
387 MIPS_SYS(sys_execveat, 5)
388 MIPS_SYS(sys_userfaultfd, 1)
389 MIPS_SYS(sys_membarrier, 2)
390 MIPS_SYS(sys_mlock2, 3)
391 MIPS_SYS(sys_copy_file_range, 6) /* 360 */
392 MIPS_SYS(sys_preadv2, 6)
393 MIPS_SYS(sys_pwritev2, 6)
394 MIPS_SYS(sys_pkey_mprotect, 4)
395 MIPS_SYS(sys_pkey_alloc, 2)
396 MIPS_SYS(sys_pkey_free, 1) /* 365 */
397 MIPS_SYS(sys_statx, 5)
398 MIPS_SYS(sys_rseq, 4)
399 MIPS_SYS(sys_io_pgetevents, 6)
400 MIPS_SYSCALL_NUMBER_UNUSED,
401 MIPS_SYSCALL_NUMBER_UNUSED, /* 370 */
402 MIPS_SYSCALL_NUMBER_UNUSED,
403 MIPS_SYSCALL_NUMBER_UNUSED,
404 MIPS_SYSCALL_NUMBER_UNUSED,
405 MIPS_SYSCALL_NUMBER_UNUSED,
406 MIPS_SYSCALL_NUMBER_UNUSED, /* 375 */
407 MIPS_SYSCALL_NUMBER_UNUSED,
408 MIPS_SYSCALL_NUMBER_UNUSED,
409 MIPS_SYSCALL_NUMBER_UNUSED,
410 MIPS_SYSCALL_NUMBER_UNUSED,
411 MIPS_SYSCALL_NUMBER_UNUSED, /* 380 */
412 MIPS_SYSCALL_NUMBER_UNUSED,
413 MIPS_SYSCALL_NUMBER_UNUSED,
414 MIPS_SYSCALL_NUMBER_UNUSED,
415 MIPS_SYSCALL_NUMBER_UNUSED,
416 MIPS_SYSCALL_NUMBER_UNUSED, /* 385 */
417 MIPS_SYSCALL_NUMBER_UNUSED,
418 MIPS_SYSCALL_NUMBER_UNUSED,
419 MIPS_SYSCALL_NUMBER_UNUSED,
420 MIPS_SYSCALL_NUMBER_UNUSED,
421 MIPS_SYSCALL_NUMBER_UNUSED, /* 390 */
422 MIPS_SYSCALL_NUMBER_UNUSED,
423 MIPS_SYSCALL_NUMBER_UNUSED,
424 MIPS_SYS(sys_semget, 3)
425 MIPS_SYS(sys_semctl, 4)
426 MIPS_SYS(sys_shmget, 3) /* 395 */
427 MIPS_SYS(sys_shmctl, 3)
428 MIPS_SYS(sys_shmat, 3)
429 MIPS_SYS(sys_shmdt, 1)
430 MIPS_SYS(sys_msgget, 2)
431 MIPS_SYS(sys_msgsnd, 4) /* 400 */
432 MIPS_SYS(sys_msgrcv, 5)
433 MIPS_SYS(sys_msgctl, 3)
434 MIPS_SYS(sys_clock_gettime64, 2)
435 MIPS_SYS(sys_clock_settime64, 2)
436 MIPS_SYS(sys_clock_adjtime64, 2) /* 405 */
437 MIPS_SYS(sys_clock_getres_time64, 2)
438 MIPS_SYS(sys_clock_nanosleep_time64, 4)
439 MIPS_SYS(sys_timer_gettime64, 2)
440 MIPS_SYS(sys_timer_settime64, 4)
441 MIPS_SYS(sys_timerfd_gettime64, 2) /* 410 */
442 MIPS_SYS(sys_timerfd_settime64, 4)
443 MIPS_SYS(sys_utimensat_time64, 4)
444 MIPS_SYS(sys_pselect6_time64, 6)
445 MIPS_SYS(sys_ppoll_time64, 5)
446 MIPS_SYSCALL_NUMBER_UNUSED, /* 415 */
447 MIPS_SYS(sys_io_pgetevents_time64, 6)
448 MIPS_SYS(sys_recvmmsg_time64, 5)
449 MIPS_SYS(sys_mq_timedsend_time64, 5)
450 MIPS_SYS(sys_mq_timedreceive_time64, 5)
451 MIPS_SYS(sys_semtimedop_time64, 4) /* 420 */
452 MIPS_SYS(sys_rt_sigtimedwait_time64, 4)
453 MIPS_SYS(sys_futex_time64, 6)
454 MIPS_SYS(sys_sched_rr_get_interval_time64, 2)
455 MIPS_SYS(sys_pidfd_send_signal, 4)
456 MIPS_SYS(sys_io_uring_setup, 2) /* 425 */
457 MIPS_SYS(sys_io_uring_enter, 6)
458 MIPS_SYS(sys_io_uring_register, 4)
459 MIPS_SYS(sys_open_tree, 3)
460 MIPS_SYS(sys_move_mount, 5)
461 MIPS_SYS(sys_fsopen, 2) /* 430 */
462 MIPS_SYS(sys_fsconfig, 5)
463 MIPS_SYS(sys_fsmount, 3)
464 MIPS_SYS(sys_fspick, 3)
465 MIPS_SYS(sys_pidfd_open, 2)
466 MIPS_SYS(sys_clone3, 2) /* 435 */
467
468 };
469 # undef MIPS_SYS
470 # endif /* O32 */
471
472 /* Break codes */
473 enum {
474 BRK_OVERFLOW = 6,
475 BRK_DIVZERO = 7
476 };
477
478 static int do_break(CPUMIPSState *env, target_siginfo_t *info,
479 unsigned int code)
480 {
481 int ret = -1;
482
483 switch (code) {
484 case BRK_OVERFLOW:
485 case BRK_DIVZERO:
486 info->si_signo = TARGET_SIGFPE;
487 info->si_errno = 0;
488 info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
489 queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
490 ret = 0;
491 break;
492 default:
493 info->si_signo = TARGET_SIGTRAP;
494 info->si_errno = 0;
495 queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
496 ret = 0;
497 break;
498 }
499
500 return ret;
501 }
502
503 void cpu_loop(CPUMIPSState *env)
504 {
505 CPUState *cs = env_cpu(env);
506 target_siginfo_t info;
507 int trapnr;
508 abi_long ret;
509 # ifdef TARGET_ABI_MIPSO32
510 unsigned int syscall_num;
511 # endif
512
513 for(;;) {
514 cpu_exec_start(cs);
515 trapnr = cpu_exec(cs);
516 cpu_exec_end(cs);
517 process_queued_cpu_work(cs);
518
519 switch(trapnr) {
520 case EXCP_SYSCALL:
521 env->active_tc.PC += 4;
522 # ifdef TARGET_ABI_MIPSO32
523 syscall_num = env->active_tc.gpr[2] - 4000;
524 if (syscall_num >= sizeof(mips_syscall_args)) {
525 /* syscall_num is larger that any defined for MIPS O32 */
526 ret = -TARGET_ENOSYS;
527 } else if (mips_syscall_args[syscall_num] ==
528 MIPS_SYSCALL_NUMBER_UNUSED) {
529 /* syscall_num belongs to the range not defined for MIPS O32 */
530 ret = -TARGET_ENOSYS;
531 } else {
532 /* syscall_num is valid */
533 int nb_args;
534 abi_ulong sp_reg;
535 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
536
537 nb_args = mips_syscall_args[syscall_num];
538 sp_reg = env->active_tc.gpr[29];
539 switch (nb_args) {
540 /* these arguments are taken from the stack */
541 case 8:
542 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
543 goto done_syscall;
544 }
545 case 7:
546 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
547 goto done_syscall;
548 }
549 case 6:
550 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
551 goto done_syscall;
552 }
553 case 5:
554 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
555 goto done_syscall;
556 }
557 default:
558 break;
559 }
560 ret = do_syscall(env, env->active_tc.gpr[2],
561 env->active_tc.gpr[4],
562 env->active_tc.gpr[5],
563 env->active_tc.gpr[6],
564 env->active_tc.gpr[7],
565 arg5, arg6, arg7, arg8);
566 }
567 done_syscall:
568 # else
569 ret = do_syscall(env, env->active_tc.gpr[2],
570 env->active_tc.gpr[4], env->active_tc.gpr[5],
571 env->active_tc.gpr[6], env->active_tc.gpr[7],
572 env->active_tc.gpr[8], env->active_tc.gpr[9],
573 env->active_tc.gpr[10], env->active_tc.gpr[11]);
574 # endif /* O32 */
575 if (ret == -TARGET_ERESTARTSYS) {
576 env->active_tc.PC -= 4;
577 break;
578 }
579 if (ret == -TARGET_QEMU_ESIGRETURN) {
580 /* Returning from a successful sigreturn syscall.
581 Avoid clobbering register state. */
582 break;
583 }
584 if ((abi_ulong)ret >= (abi_ulong)-1133) {
585 env->active_tc.gpr[7] = 1; /* error flag */
586 ret = -ret;
587 } else {
588 env->active_tc.gpr[7] = 0; /* error flag */
589 }
590 env->active_tc.gpr[2] = ret;
591 break;
592 case EXCP_TLBL:
593 case EXCP_TLBS:
594 case EXCP_AdEL:
595 case EXCP_AdES:
596 info.si_signo = TARGET_SIGSEGV;
597 info.si_errno = 0;
598 /* XXX: check env->error_code */
599 info.si_code = TARGET_SEGV_MAPERR;
600 info._sifields._sigfault._addr = env->CP0_BadVAddr;
601 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
602 break;
603 case EXCP_CpU:
604 case EXCP_RI:
605 info.si_signo = TARGET_SIGILL;
606 info.si_errno = 0;
607 info.si_code = 0;
608 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
609 break;
610 case EXCP_INTERRUPT:
611 /* just indicate that signals should be handled asap */
612 break;
613 case EXCP_DEBUG:
614 info.si_signo = TARGET_SIGTRAP;
615 info.si_errno = 0;
616 info.si_code = TARGET_TRAP_BRKPT;
617 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
618 break;
619 case EXCP_DSPDIS:
620 info.si_signo = TARGET_SIGILL;
621 info.si_errno = 0;
622 info.si_code = TARGET_ILL_ILLOPC;
623 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
624 break;
625 case EXCP_FPE:
626 info.si_signo = TARGET_SIGFPE;
627 info.si_errno = 0;
628 info.si_code = TARGET_FPE_FLTUNK;
629 if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) {
630 info.si_code = TARGET_FPE_FLTINV;
631 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_DIV0) {
632 info.si_code = TARGET_FPE_FLTDIV;
633 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_OVERFLOW) {
634 info.si_code = TARGET_FPE_FLTOVF;
635 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_UNDERFLOW) {
636 info.si_code = TARGET_FPE_FLTUND;
637 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INEXACT) {
638 info.si_code = TARGET_FPE_FLTRES;
639 }
640 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
641 break;
642 /* The code below was inspired by the MIPS Linux kernel trap
643 * handling code in arch/mips/kernel/traps.c.
644 */
645 case EXCP_BREAK:
646 {
647 abi_ulong trap_instr;
648 unsigned int code;
649
650 if (env->hflags & MIPS_HFLAG_M16) {
651 if (env->insn_flags & ASE_MICROMIPS) {
652 /* microMIPS mode */
653 ret = get_user_u16(trap_instr, env->active_tc.PC);
654 if (ret != 0) {
655 goto error;
656 }
657
658 if ((trap_instr >> 10) == 0x11) {
659 /* 16-bit instruction */
660 code = trap_instr & 0xf;
661 } else {
662 /* 32-bit instruction */
663 abi_ulong instr_lo;
664
665 ret = get_user_u16(instr_lo,
666 env->active_tc.PC + 2);
667 if (ret != 0) {
668 goto error;
669 }
670 trap_instr = (trap_instr << 16) | instr_lo;
671 code = ((trap_instr >> 6) & ((1 << 20) - 1));
672 /* Unfortunately, microMIPS also suffers from
673 the old assembler bug... */
674 if (code >= (1 << 10)) {
675 code >>= 10;
676 }
677 }
678 } else {
679 /* MIPS16e mode */
680 ret = get_user_u16(trap_instr, env->active_tc.PC);
681 if (ret != 0) {
682 goto error;
683 }
684 code = (trap_instr >> 6) & 0x3f;
685 }
686 } else {
687 ret = get_user_u32(trap_instr, env->active_tc.PC);
688 if (ret != 0) {
689 goto error;
690 }
691
692 /* As described in the original Linux kernel code, the
693 * below checks on 'code' are to work around an old
694 * assembly bug.
695 */
696 code = ((trap_instr >> 6) & ((1 << 20) - 1));
697 if (code >= (1 << 10)) {
698 code >>= 10;
699 }
700 }
701
702 if (do_break(env, &info, code) != 0) {
703 goto error;
704 }
705 }
706 break;
707 case EXCP_TRAP:
708 {
709 abi_ulong trap_instr;
710 unsigned int code = 0;
711
712 if (env->hflags & MIPS_HFLAG_M16) {
713 /* microMIPS mode */
714 abi_ulong instr[2];
715
716 ret = get_user_u16(instr[0], env->active_tc.PC) ||
717 get_user_u16(instr[1], env->active_tc.PC + 2);
718
719 trap_instr = (instr[0] << 16) | instr[1];
720 } else {
721 ret = get_user_u32(trap_instr, env->active_tc.PC);
722 }
723
724 if (ret != 0) {
725 goto error;
726 }
727
728 /* The immediate versions don't provide a code. */
729 if (!(trap_instr & 0xFC000000)) {
730 if (env->hflags & MIPS_HFLAG_M16) {
731 /* microMIPS mode */
732 code = ((trap_instr >> 12) & ((1 << 4) - 1));
733 } else {
734 code = ((trap_instr >> 6) & ((1 << 10) - 1));
735 }
736 }
737
738 if (do_break(env, &info, code) != 0) {
739 goto error;
740 }
741 }
742 break;
743 case EXCP_ATOMIC:
744 cpu_exec_step_atomic(cs);
745 break;
746 default:
747 error:
748 EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
749 abort();
750 }
751 process_pending_signals(env);
752 }
753 }
754
755 void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
756 {
757 CPUState *cpu = env_cpu(env);
758 TaskState *ts = cpu->opaque;
759 struct image_info *info = ts->info;
760 int i;
761
762 struct mode_req {
763 bool single;
764 bool soft;
765 bool fr1;
766 bool frdefault;
767 bool fre;
768 };
769
770 static const struct mode_req fpu_reqs[] = {
771 [MIPS_ABI_FP_ANY] = { true, true, true, true, true },
772 [MIPS_ABI_FP_DOUBLE] = { false, false, false, true, true },
773 [MIPS_ABI_FP_SINGLE] = { true, false, false, false, false },
774 [MIPS_ABI_FP_SOFT] = { false, true, false, false, false },
775 [MIPS_ABI_FP_OLD_64] = { false, false, false, false, false },
776 [MIPS_ABI_FP_XX] = { false, false, true, true, true },
777 [MIPS_ABI_FP_64] = { false, false, true, false, false },
778 [MIPS_ABI_FP_64A] = { false, false, true, false, true }
779 };
780
781 /*
782 * Mode requirements when .MIPS.abiflags is not present in the ELF.
783 * Not present means that everything is acceptable except FR1.
784 */
785 static struct mode_req none_req = { true, true, false, true, true };
786
787 struct mode_req prog_req;
788 struct mode_req interp_req;
789
790 for(i = 0; i < 32; i++) {
791 env->active_tc.gpr[i] = regs->regs[i];
792 }
793 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
794 if (regs->cp0_epc & 1) {
795 env->hflags |= MIPS_HFLAG_M16;
796 }
797
798 #ifdef TARGET_ABI_MIPSO32
799 # define MAX_FP_ABI MIPS_ABI_FP_64A
800 #else
801 # define MAX_FP_ABI MIPS_ABI_FP_SOFT
802 #endif
803 if ((info->fp_abi > MAX_FP_ABI && info->fp_abi != MIPS_ABI_FP_UNKNOWN)
804 || (info->interp_fp_abi > MAX_FP_ABI &&
805 info->interp_fp_abi != MIPS_ABI_FP_UNKNOWN)) {
806 fprintf(stderr, "qemu: Unexpected FPU mode\n");
807 exit(1);
808 }
809
810 prog_req = (info->fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req
811 : fpu_reqs[info->fp_abi];
812 interp_req = (info->interp_fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req
813 : fpu_reqs[info->interp_fp_abi];
814
815 prog_req.single &= interp_req.single;
816 prog_req.soft &= interp_req.soft;
817 prog_req.fr1 &= interp_req.fr1;
818 prog_req.frdefault &= interp_req.frdefault;
819 prog_req.fre &= interp_req.fre;
820
821 bool cpu_has_mips_r2_r6 = env->insn_flags & ISA_MIPS32R2 ||
822 env->insn_flags & ISA_MIPS64R2 ||
823 env->insn_flags & ISA_MIPS32R6 ||
824 env->insn_flags & ISA_MIPS64R6;
825
826 if (prog_req.fre && !prog_req.frdefault && !prog_req.fr1) {
827 env->CP0_Config5 |= (1 << CP0C5_FRE);
828 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
829 env->hflags |= MIPS_HFLAG_FRE;
830 }
831 } else if ((prog_req.fr1 && prog_req.frdefault) ||
832 (prog_req.single && !prog_req.frdefault)) {
833 if ((env->active_fpu.fcr0 & (1 << FCR0_F64)
834 && cpu_has_mips_r2_r6) || prog_req.fr1) {
835 env->CP0_Status |= (1 << CP0St_FR);
836 env->hflags |= MIPS_HFLAG_F64;
837 }
838 } else if (!prog_req.fre && !prog_req.frdefault &&
839 !prog_req.fr1 && !prog_req.single && !prog_req.soft) {
840 fprintf(stderr, "qemu: Can't find a matching FPU mode\n");
841 exit(1);
842 }
843
844 if (env->insn_flags & ISA_NANOMIPS32) {
845 return;
846 }
847 if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
848 ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
849 if ((env->active_fpu.fcr31_rw_bitmask &
850 (1 << FCR31_NAN2008)) == 0) {
851 fprintf(stderr, "ELF binary's NaN mode not supported by CPU\n");
852 exit(1);
853 }
854 if ((info->elf_flags & EF_MIPS_NAN2008) != 0) {
855 env->active_fpu.fcr31 |= (1 << FCR31_NAN2008);
856 } else {
857 env->active_fpu.fcr31 &= ~(1 << FCR31_NAN2008);
858 }
859 restore_snan_bit_mode(env);
860 }
861 }
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