]> git.proxmox.com Git - mirror_qemu.git/blame - linux-user/mips/cpu_loop.c
projects / mirror_qemu.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
linux-user: microblaze: Update syscall numbers to kernel 5.5 level
[mirror_qemu.git] / linux-user / mips / cpu_loop.c
CommitLineData
cd71c089
LV		 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"
a8d25326 21#include "qemu-common.h"
cd71c089
LV		 22#include "qemu.h"
23#include "cpu_loop-common.h"
58908ef6 24#include "elf.h"
502700d0 25#include "internal.h"
58908ef6
LV		 26
27# ifdef TARGET_ABI_MIPSO32
28# define MIPS_SYS(name, args) args,
29static const uint8_t mips_syscall_args[] = {
30 MIPS_SYS(sys_syscall , 8) /* 4000 */
31 MIPS_SYS(sys_exit , 1)
32 MIPS_SYS(sys_fork , 0)
33 MIPS_SYS(sys_read , 3)
34 MIPS_SYS(sys_write , 3)
35 MIPS_SYS(sys_open , 3) /* 4005 */
36 MIPS_SYS(sys_close , 1)
37 MIPS_SYS(sys_waitpid , 3)
38 MIPS_SYS(sys_creat , 2)
39 MIPS_SYS(sys_link , 2)
40 MIPS_SYS(sys_unlink , 1) /* 4010 */
41 MIPS_SYS(sys_execve , 0)
42 MIPS_SYS(sys_chdir , 1)
43 MIPS_SYS(sys_time , 1)
44 MIPS_SYS(sys_mknod , 3)
45 MIPS_SYS(sys_chmod , 2) /* 4015 */
46 MIPS_SYS(sys_lchown , 3)
47 MIPS_SYS(sys_ni_syscall , 0)
48 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
49 MIPS_SYS(sys_lseek , 3)
50 MIPS_SYS(sys_getpid , 0) /* 4020 */
51 MIPS_SYS(sys_mount , 5)
52 MIPS_SYS(sys_umount , 1)
53 MIPS_SYS(sys_setuid , 1)
54 MIPS_SYS(sys_getuid , 0)
55 MIPS_SYS(sys_stime , 1) /* 4025 */
56 MIPS_SYS(sys_ptrace , 4)
57 MIPS_SYS(sys_alarm , 1)
58 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
59 MIPS_SYS(sys_pause , 0)
60 MIPS_SYS(sys_utime , 2) /* 4030 */
61 MIPS_SYS(sys_ni_syscall , 0)
62 MIPS_SYS(sys_ni_syscall , 0)
63 MIPS_SYS(sys_access , 2)
64 MIPS_SYS(sys_nice , 1)
65 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
66 MIPS_SYS(sys_sync , 0)
67 MIPS_SYS(sys_kill , 2)
68 MIPS_SYS(sys_rename , 2)
69 MIPS_SYS(sys_mkdir , 2)
70 MIPS_SYS(sys_rmdir , 1) /* 4040 */
71 MIPS_SYS(sys_dup , 1)
72 MIPS_SYS(sys_pipe , 0)
73 MIPS_SYS(sys_times , 1)
74 MIPS_SYS(sys_ni_syscall , 0)
75 MIPS_SYS(sys_brk , 1) /* 4045 */
76 MIPS_SYS(sys_setgid , 1)
77 MIPS_SYS(sys_getgid , 0)
78 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
79 MIPS_SYS(sys_geteuid , 0)
80 MIPS_SYS(sys_getegid , 0) /* 4050 */
81 MIPS_SYS(sys_acct , 0)
82 MIPS_SYS(sys_umount2 , 2)
83 MIPS_SYS(sys_ni_syscall , 0)
84 MIPS_SYS(sys_ioctl , 3)
85 MIPS_SYS(sys_fcntl , 3) /* 4055 */
86 MIPS_SYS(sys_ni_syscall , 2)
87 MIPS_SYS(sys_setpgid , 2)
88 MIPS_SYS(sys_ni_syscall , 0)
89 MIPS_SYS(sys_olduname , 1)
90 MIPS_SYS(sys_umask , 1) /* 4060 */
91 MIPS_SYS(sys_chroot , 1)
92 MIPS_SYS(sys_ustat , 2)
93 MIPS_SYS(sys_dup2 , 2)
94 MIPS_SYS(sys_getppid , 0)
95 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
96 MIPS_SYS(sys_setsid , 0)
97 MIPS_SYS(sys_sigaction , 3)
98 MIPS_SYS(sys_sgetmask , 0)
99 MIPS_SYS(sys_ssetmask , 1)
100 MIPS_SYS(sys_setreuid , 2) /* 4070 */
101 MIPS_SYS(sys_setregid , 2)
102 MIPS_SYS(sys_sigsuspend , 0)
103 MIPS_SYS(sys_sigpending , 1)
104 MIPS_SYS(sys_sethostname , 2)
105 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
106 MIPS_SYS(sys_getrlimit , 2)
107 MIPS_SYS(sys_getrusage , 2)
108 MIPS_SYS(sys_gettimeofday, 2)
109 MIPS_SYS(sys_settimeofday, 2)
110 MIPS_SYS(sys_getgroups , 2) /* 4080 */
111 MIPS_SYS(sys_setgroups , 2)
112 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
113 MIPS_SYS(sys_symlink , 2)
114 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
115 MIPS_SYS(sys_readlink , 3) /* 4085 */
116 MIPS_SYS(sys_uselib , 1)
117 MIPS_SYS(sys_swapon , 2)
118 MIPS_SYS(sys_reboot , 3)
119 MIPS_SYS(old_readdir , 3)
120 MIPS_SYS(old_mmap , 6) /* 4090 */
121 MIPS_SYS(sys_munmap , 2)
122 MIPS_SYS(sys_truncate , 2)
123 MIPS_SYS(sys_ftruncate , 2)
124 MIPS_SYS(sys_fchmod , 2)
125 MIPS_SYS(sys_fchown , 3) /* 4095 */
126 MIPS_SYS(sys_getpriority , 2)
127 MIPS_SYS(sys_setpriority , 3)
128 MIPS_SYS(sys_ni_syscall , 0)
129 MIPS_SYS(sys_statfs , 2)
130 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
131 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
132 MIPS_SYS(sys_socketcall , 2)
133 MIPS_SYS(sys_syslog , 3)
134 MIPS_SYS(sys_setitimer , 3)
135 MIPS_SYS(sys_getitimer , 2) /* 4105 */
136 MIPS_SYS(sys_newstat , 2)
137 MIPS_SYS(sys_newlstat , 2)
138 MIPS_SYS(sys_newfstat , 2)
139 MIPS_SYS(sys_uname , 1)
140 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
141 MIPS_SYS(sys_vhangup , 0)
142 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
143 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
144 MIPS_SYS(sys_wait4 , 4)
145 MIPS_SYS(sys_swapoff , 1) /* 4115 */
146 MIPS_SYS(sys_sysinfo , 1)
147 MIPS_SYS(sys_ipc , 6)
148 MIPS_SYS(sys_fsync , 1)
149 MIPS_SYS(sys_sigreturn , 0)
150 MIPS_SYS(sys_clone , 6) /* 4120 */
151 MIPS_SYS(sys_setdomainname, 2)
152 MIPS_SYS(sys_newuname , 1)
153 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
154 MIPS_SYS(sys_adjtimex , 1)
155 MIPS_SYS(sys_mprotect , 3) /* 4125 */
156 MIPS_SYS(sys_sigprocmask , 3)
157 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
158 MIPS_SYS(sys_init_module , 5)
159 MIPS_SYS(sys_delete_module, 1)
160 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
161 MIPS_SYS(sys_quotactl , 0)
162 MIPS_SYS(sys_getpgid , 1)
163 MIPS_SYS(sys_fchdir , 1)
164 MIPS_SYS(sys_bdflush , 2)
165 MIPS_SYS(sys_sysfs , 3) /* 4135 */
166 MIPS_SYS(sys_personality , 1)
167 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
168 MIPS_SYS(sys_setfsuid , 1)
169 MIPS_SYS(sys_setfsgid , 1)
170 MIPS_SYS(sys_llseek , 5) /* 4140 */
171 MIPS_SYS(sys_getdents , 3)
172 MIPS_SYS(sys_select , 5)
173 MIPS_SYS(sys_flock , 2)
174 MIPS_SYS(sys_msync , 3)
175 MIPS_SYS(sys_readv , 3) /* 4145 */
176 MIPS_SYS(sys_writev , 3)
177 MIPS_SYS(sys_cacheflush , 3)
178 MIPS_SYS(sys_cachectl , 3)
179 MIPS_SYS(sys_sysmips , 4)
180 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
181 MIPS_SYS(sys_getsid , 1)
182 MIPS_SYS(sys_fdatasync , 0)
183 MIPS_SYS(sys_sysctl , 1)
184 MIPS_SYS(sys_mlock , 2)
185 MIPS_SYS(sys_munlock , 2) /* 4155 */
186 MIPS_SYS(sys_mlockall , 1)
187 MIPS_SYS(sys_munlockall , 0)
188 MIPS_SYS(sys_sched_setparam, 2)
189 MIPS_SYS(sys_sched_getparam, 2)
190 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
191 MIPS_SYS(sys_sched_getscheduler, 1)
192 MIPS_SYS(sys_sched_yield , 0)
193 MIPS_SYS(sys_sched_get_priority_max, 1)
194 MIPS_SYS(sys_sched_get_priority_min, 1)
195 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
196 MIPS_SYS(sys_nanosleep, 2)
197 MIPS_SYS(sys_mremap , 5)
198 MIPS_SYS(sys_accept , 3)
199 MIPS_SYS(sys_bind , 3)
200 MIPS_SYS(sys_connect , 3) /* 4170 */
201 MIPS_SYS(sys_getpeername , 3)
202 MIPS_SYS(sys_getsockname , 3)
203 MIPS_SYS(sys_getsockopt , 5)
204 MIPS_SYS(sys_listen , 2)
205 MIPS_SYS(sys_recv , 4) /* 4175 */
206 MIPS_SYS(sys_recvfrom , 6)
207 MIPS_SYS(sys_recvmsg , 3)
208 MIPS_SYS(sys_send , 4)
209 MIPS_SYS(sys_sendmsg , 3)
210 MIPS_SYS(sys_sendto , 6) /* 4180 */
211 MIPS_SYS(sys_setsockopt , 5)
212 MIPS_SYS(sys_shutdown , 2)
213 MIPS_SYS(sys_socket , 3)
214 MIPS_SYS(sys_socketpair , 4)
215 MIPS_SYS(sys_setresuid , 3) /* 4185 */
216 MIPS_SYS(sys_getresuid , 3)
217 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
218 MIPS_SYS(sys_poll , 3)
219 MIPS_SYS(sys_nfsservctl , 3)
220 MIPS_SYS(sys_setresgid , 3) /* 4190 */
221 MIPS_SYS(sys_getresgid , 3)
222 MIPS_SYS(sys_prctl , 5)
223 MIPS_SYS(sys_rt_sigreturn, 0)
224 MIPS_SYS(sys_rt_sigaction, 4)
225 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
226 MIPS_SYS(sys_rt_sigpending, 2)
227 MIPS_SYS(sys_rt_sigtimedwait, 4)
228 MIPS_SYS(sys_rt_sigqueueinfo, 3)
229 MIPS_SYS(sys_rt_sigsuspend, 0)
230 MIPS_SYS(sys_pread64 , 6) /* 4200 */
231 MIPS_SYS(sys_pwrite64 , 6)
232 MIPS_SYS(sys_chown , 3)
233 MIPS_SYS(sys_getcwd , 2)
234 MIPS_SYS(sys_capget , 2)
235 MIPS_SYS(sys_capset , 2) /* 4205 */
236 MIPS_SYS(sys_sigaltstack , 2)
237 MIPS_SYS(sys_sendfile , 4)
238 MIPS_SYS(sys_ni_syscall , 0)
239 MIPS_SYS(sys_ni_syscall , 0)
240 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
241 MIPS_SYS(sys_truncate64 , 4)
242 MIPS_SYS(sys_ftruncate64 , 4)
243 MIPS_SYS(sys_stat64 , 2)
244 MIPS_SYS(sys_lstat64 , 2)
245 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
246 MIPS_SYS(sys_pivot_root , 2)
247 MIPS_SYS(sys_mincore , 3)
248 MIPS_SYS(sys_madvise , 3)
249 MIPS_SYS(sys_getdents64 , 3)
250 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
251 MIPS_SYS(sys_ni_syscall , 0)
252 MIPS_SYS(sys_gettid , 0)
253 MIPS_SYS(sys_readahead , 5)
254 MIPS_SYS(sys_setxattr , 5)
255 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
256 MIPS_SYS(sys_fsetxattr , 5)
257 MIPS_SYS(sys_getxattr , 4)
258 MIPS_SYS(sys_lgetxattr , 4)
259 MIPS_SYS(sys_fgetxattr , 4)
260 MIPS_SYS(sys_listxattr , 3) /* 4230 */
261 MIPS_SYS(sys_llistxattr , 3)
262 MIPS_SYS(sys_flistxattr , 3)
263 MIPS_SYS(sys_removexattr , 2)
264 MIPS_SYS(sys_lremovexattr, 2)
265 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
266 MIPS_SYS(sys_tkill , 2)
267 MIPS_SYS(sys_sendfile64 , 5)
268 MIPS_SYS(sys_futex , 6)
269 MIPS_SYS(sys_sched_setaffinity, 3)
270 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
271 MIPS_SYS(sys_io_setup , 2)
272 MIPS_SYS(sys_io_destroy , 1)
273 MIPS_SYS(sys_io_getevents, 5)
274 MIPS_SYS(sys_io_submit , 3)
275 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
276 MIPS_SYS(sys_exit_group , 1)
277 MIPS_SYS(sys_lookup_dcookie, 3)
278 MIPS_SYS(sys_epoll_create, 1)
279 MIPS_SYS(sys_epoll_ctl , 4)
280 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
281 MIPS_SYS(sys_remap_file_pages, 5)
282 MIPS_SYS(sys_set_tid_address, 1)
283 MIPS_SYS(sys_restart_syscall, 0)
284 MIPS_SYS(sys_fadvise64_64, 7)
285 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
286 MIPS_SYS(sys_fstatfs64 , 2)
287 MIPS_SYS(sys_timer_create, 3)
288 MIPS_SYS(sys_timer_settime, 4)
289 MIPS_SYS(sys_timer_gettime, 2)
290 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
291 MIPS_SYS(sys_timer_delete, 1)
292 MIPS_SYS(sys_clock_settime, 2)
293 MIPS_SYS(sys_clock_gettime, 2)
294 MIPS_SYS(sys_clock_getres, 2)
295 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
296 MIPS_SYS(sys_tgkill , 3)
297 MIPS_SYS(sys_utimes , 2)
298 MIPS_SYS(sys_mbind , 4)
299 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
300 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
301 MIPS_SYS(sys_mq_open , 4)
302 MIPS_SYS(sys_mq_unlink , 1)
303 MIPS_SYS(sys_mq_timedsend, 5)
304 MIPS_SYS(sys_mq_timedreceive, 5)
305 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
306 MIPS_SYS(sys_mq_getsetattr, 3)
307 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
308 MIPS_SYS(sys_waitid , 4)
309 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
310 MIPS_SYS(sys_add_key , 5)
311 MIPS_SYS(sys_request_key, 4)
312 MIPS_SYS(sys_keyctl , 5)
313 MIPS_SYS(sys_set_thread_area, 1)
314 MIPS_SYS(sys_inotify_init, 0)
315 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
316 MIPS_SYS(sys_inotify_rm_watch, 2)
317 MIPS_SYS(sys_migrate_pages, 4)
318 MIPS_SYS(sys_openat, 4)
319 MIPS_SYS(sys_mkdirat, 3)
320 MIPS_SYS(sys_mknodat, 4) /* 4290 */
321 MIPS_SYS(sys_fchownat, 5)
322 MIPS_SYS(sys_futimesat, 3)
323 MIPS_SYS(sys_fstatat64, 4)
324 MIPS_SYS(sys_unlinkat, 3)
325 MIPS_SYS(sys_renameat, 4) /* 4295 */
326 MIPS_SYS(sys_linkat, 5)
327 MIPS_SYS(sys_symlinkat, 3)
328 MIPS_SYS(sys_readlinkat, 4)
329 MIPS_SYS(sys_fchmodat, 3)
330 MIPS_SYS(sys_faccessat, 3) /* 4300 */
331 MIPS_SYS(sys_pselect6, 6)
332 MIPS_SYS(sys_ppoll, 5)
333 MIPS_SYS(sys_unshare, 1)
334 MIPS_SYS(sys_splice, 6)
335 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
336 MIPS_SYS(sys_tee, 4)
337 MIPS_SYS(sys_vmsplice, 4)
338 MIPS_SYS(sys_move_pages, 6)
339 MIPS_SYS(sys_set_robust_list, 2)
340 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
341 MIPS_SYS(sys_kexec_load, 4)
342 MIPS_SYS(sys_getcpu, 3)
343 MIPS_SYS(sys_epoll_pwait, 6)
344 MIPS_SYS(sys_ioprio_set, 3)
345 MIPS_SYS(sys_ioprio_get, 2)
346 MIPS_SYS(sys_utimensat, 4)
347 MIPS_SYS(sys_signalfd, 3)
348 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
349 MIPS_SYS(sys_eventfd, 1)
350 MIPS_SYS(sys_fallocate, 6) /* 4320 */
351 MIPS_SYS(sys_timerfd_create, 2)
352 MIPS_SYS(sys_timerfd_gettime, 2)
353 MIPS_SYS(sys_timerfd_settime, 4)
354 MIPS_SYS(sys_signalfd4, 4)
355 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
356 MIPS_SYS(sys_epoll_create1, 1)
357 MIPS_SYS(sys_dup3, 3)
358 MIPS_SYS(sys_pipe2, 2)
359 MIPS_SYS(sys_inotify_init1, 1)
360 MIPS_SYS(sys_preadv, 5) /* 4330 */
361 MIPS_SYS(sys_pwritev, 5)
362 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
363 MIPS_SYS(sys_perf_event_open, 5)
364 MIPS_SYS(sys_accept4, 4)
365 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
366 MIPS_SYS(sys_fanotify_init, 2)
367 MIPS_SYS(sys_fanotify_mark, 6)
368 MIPS_SYS(sys_prlimit64, 4)
369 MIPS_SYS(sys_name_to_handle_at, 5)
370 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
371 MIPS_SYS(sys_clock_adjtime, 2)
372 MIPS_SYS(sys_syncfs, 1)
373 MIPS_SYS(sys_sendmmsg, 4)
374 MIPS_SYS(sys_setns, 2)
375 MIPS_SYS(sys_process_vm_readv, 6) /* 345 */
376 MIPS_SYS(sys_process_vm_writev, 6)
377 MIPS_SYS(sys_kcmp, 5)
378 MIPS_SYS(sys_finit_module, 3)
379 MIPS_SYS(sys_sched_setattr, 2)
380 MIPS_SYS(sys_sched_getattr, 3) /* 350 */
381 MIPS_SYS(sys_renameat2, 5)
382 MIPS_SYS(sys_seccomp, 3)
383 MIPS_SYS(sys_getrandom, 3)
384 MIPS_SYS(sys_memfd_create, 2)
385 MIPS_SYS(sys_bpf, 3) /* 355 */
386 MIPS_SYS(sys_execveat, 5)
387 MIPS_SYS(sys_userfaultfd, 1)
388 MIPS_SYS(sys_membarrier, 2)
389 MIPS_SYS(sys_mlock2, 3)
390 MIPS_SYS(sys_copy_file_range, 6) /* 360 */
391 MIPS_SYS(sys_preadv2, 6)
392 MIPS_SYS(sys_pwritev2, 6)
393};
394# undef MIPS_SYS
395# endif /* O32 */
396
58908ef6
LV		 397/* Break codes */
398enum {
399 BRK_OVERFLOW = 6,
400 BRK_DIVZERO = 7
401};
402
403static int do_break(CPUMIPSState *env, target_siginfo_t *info,
404 unsigned int code)
405{
406 int ret = -1;
407
408 switch (code) {
409 case BRK_OVERFLOW:
410 case BRK_DIVZERO:
411 info->si_signo = TARGET_SIGFPE;
412 info->si_errno = 0;
413 info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
414 queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
415 ret = 0;
416 break;
417 default:
418 info->si_signo = TARGET_SIGTRAP;
419 info->si_errno = 0;
420 queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info);
421 ret = 0;
422 break;
423 }
424
425 return ret;
426}
427
428void cpu_loop(CPUMIPSState *env)
429{
5a7330b3 430 CPUState *cs = env_cpu(env);
58908ef6
LV		 431 target_siginfo_t info;
432 int trapnr;
433 abi_long ret;
434# ifdef TARGET_ABI_MIPSO32
435 unsigned int syscall_num;
436# endif
437
438 for(;;) {
439 cpu_exec_start(cs);
440 trapnr = cpu_exec(cs);
441 cpu_exec_end(cs);
442 process_queued_cpu_work(cs);
443
444 switch(trapnr) {
445 case EXCP_SYSCALL:
446 env->active_tc.PC += 4;
447# ifdef TARGET_ABI_MIPSO32
448 syscall_num = env->active_tc.gpr[2] - 4000;
449 if (syscall_num >= sizeof(mips_syscall_args)) {
450 ret = -TARGET_ENOSYS;
451 } else {
452 int nb_args;
453 abi_ulong sp_reg;
454 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
455
456 nb_args = mips_syscall_args[syscall_num];
457 sp_reg = env->active_tc.gpr[29];
458 switch (nb_args) {
459 /* these arguments are taken from the stack */
460 case 8:
461 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
462 goto done_syscall;
463 }
464 case 7:
465 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
466 goto done_syscall;
467 }
468 case 6:
469 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
470 goto done_syscall;
471 }
472 case 5:
473 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
474 goto done_syscall;
475 }
476 default:
477 break;
478 }
479 ret = do_syscall(env, env->active_tc.gpr[2],
480 env->active_tc.gpr[4],
481 env->active_tc.gpr[5],
482 env->active_tc.gpr[6],
483 env->active_tc.gpr[7],
484 arg5, arg6, arg7, arg8);
485 }
486done_syscall:
487# else
488 ret = do_syscall(env, env->active_tc.gpr[2],
489 env->active_tc.gpr[4], env->active_tc.gpr[5],
490 env->active_tc.gpr[6], env->active_tc.gpr[7],
491 env->active_tc.gpr[8], env->active_tc.gpr[9],
492 env->active_tc.gpr[10], env->active_tc.gpr[11]);
493# endif /* O32 */
494 if (ret == -TARGET_ERESTARTSYS) {
495 env->active_tc.PC -= 4;
496 break;
497 }
498 if (ret == -TARGET_QEMU_ESIGRETURN) {
499 /* Returning from a successful sigreturn syscall.
500 Avoid clobbering register state. */
501 break;
502 }
503 if ((abi_ulong)ret >= (abi_ulong)-1133) {
504 env->active_tc.gpr[7] = 1; /* error flag */
505 ret = -ret;
506 } else {
507 env->active_tc.gpr[7] = 0; /* error flag */
508 }
509 env->active_tc.gpr[2] = ret;
510 break;
511 case EXCP_TLBL:
512 case EXCP_TLBS:
513 case EXCP_AdEL:
514 case EXCP_AdES:
515 info.si_signo = TARGET_SIGSEGV;
516 info.si_errno = 0;
517 /* XXX: check env->error_code */
518 info.si_code = TARGET_SEGV_MAPERR;
519 info._sifields._sigfault._addr = env->CP0_BadVAddr;
520 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
521 break;
522 case EXCP_CpU:
523 case EXCP_RI:
524 info.si_signo = TARGET_SIGILL;
525 info.si_errno = 0;
526 info.si_code = 0;
527 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
528 break;
529 case EXCP_INTERRUPT:
530 /* just indicate that signals should be handled asap */
531 break;
532 case EXCP_DEBUG:
b10089a1
PM		 533 info.si_signo = TARGET_SIGTRAP;
534 info.si_errno = 0;
535 info.si_code = TARGET_TRAP_BRKPT;
536 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
58908ef6 537 break;
58908ef6
LV		 538 case EXCP_DSPDIS:
539 info.si_signo = TARGET_SIGILL;
540 info.si_errno = 0;
541 info.si_code = TARGET_ILL_ILLOPC;
542 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
543 break;
64ce541c
AM		 544 case EXCP_FPE:
545 info.si_signo = TARGET_SIGFPE;
546 info.si_errno = 0;
547 info.si_code = TARGET_FPE_FLTUNK;
548 if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) {
549 info.si_code = TARGET_FPE_FLTINV;
550 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_DIV0) {
551 info.si_code = TARGET_FPE_FLTDIV;
552 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_OVERFLOW) {
553 info.si_code = TARGET_FPE_FLTOVF;
554 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_UNDERFLOW) {
555 info.si_code = TARGET_FPE_FLTUND;
556 } else if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INEXACT) {
557 info.si_code = TARGET_FPE_FLTRES;
558 }
559 queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
560 break;
58908ef6
LV		 561 /* The code below was inspired by the MIPS Linux kernel trap
562 * handling code in arch/mips/kernel/traps.c.
563 */
564 case EXCP_BREAK:
565 {
566 abi_ulong trap_instr;
567 unsigned int code;
568
569 if (env->hflags & MIPS_HFLAG_M16) {
570 if (env->insn_flags & ASE_MICROMIPS) {
571 /* microMIPS mode */
572 ret = get_user_u16(trap_instr, env->active_tc.PC);
573 if (ret != 0) {
574 goto error;
575 }
576
577 if ((trap_instr >> 10) == 0x11) {
578 /* 16-bit instruction */
579 code = trap_instr & 0xf;
580 } else {
581 /* 32-bit instruction */
582 abi_ulong instr_lo;
583
584 ret = get_user_u16(instr_lo,
585 env->active_tc.PC + 2);
586 if (ret != 0) {
587 goto error;
588 }
589 trap_instr = (trap_instr << 16) | instr_lo;
590 code = ((trap_instr >> 6) & ((1 << 20) - 1));
591 /* Unfortunately, microMIPS also suffers from
592 the old assembler bug... */
593 if (code >= (1 << 10)) {
594 code >>= 10;
595 }
596 }
597 } else {
598 /* MIPS16e mode */
599 ret = get_user_u16(trap_instr, env->active_tc.PC);
600 if (ret != 0) {
601 goto error;
602 }
603 code = (trap_instr >> 6) & 0x3f;
604 }
605 } else {
606 ret = get_user_u32(trap_instr, env->active_tc.PC);
607 if (ret != 0) {
608 goto error;
609 }
610
611 /* As described in the original Linux kernel code, the
612 * below checks on 'code' are to work around an old
613 * assembly bug.
614 */
615 code = ((trap_instr >> 6) & ((1 << 20) - 1));
616 if (code >= (1 << 10)) {
617 code >>= 10;
618 }
619 }
620
621 if (do_break(env, &info, code) != 0) {
622 goto error;
623 }
624 }
625 break;
626 case EXCP_TRAP:
627 {
628 abi_ulong trap_instr;
629 unsigned int code = 0;
630
631 if (env->hflags & MIPS_HFLAG_M16) {
632 /* microMIPS mode */
633 abi_ulong instr[2];
634
635 ret = get_user_u16(instr[0], env->active_tc.PC) ||
636 get_user_u16(instr[1], env->active_tc.PC + 2);
637
638 trap_instr = (instr[0] << 16) | instr[1];
639 } else {
640 ret = get_user_u32(trap_instr, env->active_tc.PC);
641 }
642
643 if (ret != 0) {
644 goto error;
645 }
646
647 /* The immediate versions don't provide a code. */
648 if (!(trap_instr & 0xFC000000)) {
649 if (env->hflags & MIPS_HFLAG_M16) {
650 /* microMIPS mode */
651 code = ((trap_instr >> 12) & ((1 << 4) - 1));
652 } else {
653 code = ((trap_instr >> 6) & ((1 << 10) - 1));
654 }
655 }
656
657 if (do_break(env, &info, code) != 0) {
658 goto error;
659 }
660 }
661 break;
662 case EXCP_ATOMIC:
663 cpu_exec_step_atomic(cs);
664 break;
665 default:
666error:
667 EXCP_DUMP(env, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
668 abort();
669 }
670 process_pending_signals(env);
671 }
672}
cd71c089
LV		 673
674void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
675{
29a0af61 676 CPUState *cpu = env_cpu(env);
58908ef6
LV		 677 TaskState *ts = cpu->opaque;
678 struct image_info *info = ts->info;
679 int i;
680
0c1bbedc
SM		 681 struct mode_req {
682 bool single;
683 bool soft;
684 bool fr1;
685 bool frdefault;
686 bool fre;
687 };
688
689 static const struct mode_req fpu_reqs[] = {
690 [MIPS_ABI_FP_ANY] = { true, true, true, true, true },
691 [MIPS_ABI_FP_DOUBLE] = { false, false, false, true, true },
692 [MIPS_ABI_FP_SINGLE] = { true, false, false, false, false },
693 [MIPS_ABI_FP_SOFT] = { false, true, false, false, false },
694 [MIPS_ABI_FP_OLD_64] = { false, false, false, false, false },
695 [MIPS_ABI_FP_XX] = { false, false, true, true, true },
696 [MIPS_ABI_FP_64] = { false, false, true, false, false },
697 [MIPS_ABI_FP_64A] = { false, false, true, false, true }
698 };
699
700 /*
701 * Mode requirements when .MIPS.abiflags is not present in the ELF.
702 * Not present means that everything is acceptable except FR1.
703 */
704 static struct mode_req none_req = { true, true, false, true, true };
705
706 struct mode_req prog_req;
707 struct mode_req interp_req;
708
58908ef6
LV		 709 for(i = 0; i < 32; i++) {
710 env->active_tc.gpr[i] = regs->regs[i];
711 }
712 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
713 if (regs->cp0_epc & 1) {
714 env->hflags |= MIPS_HFLAG_M16;
715 }
0c1bbedc
SM		 716
717#ifdef TARGET_ABI_MIPSO32
718# define MAX_FP_ABI MIPS_ABI_FP_64A
719#else
720# define MAX_FP_ABI MIPS_ABI_FP_SOFT
721#endif
722 if ((info->fp_abi > MAX_FP_ABI && info->fp_abi != MIPS_ABI_FP_UNKNOWN)
723 || (info->interp_fp_abi > MAX_FP_ABI &&
724 info->interp_fp_abi != MIPS_ABI_FP_UNKNOWN)) {
725 fprintf(stderr, "qemu: Unexpected FPU mode\n");
726 exit(1);
727 }
728
729 prog_req = (info->fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req
730 : fpu_reqs[info->fp_abi];
731 interp_req = (info->interp_fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req
732 : fpu_reqs[info->interp_fp_abi];
733
734 prog_req.single &= interp_req.single;
735 prog_req.soft &= interp_req.soft;
736 prog_req.fr1 &= interp_req.fr1;
737 prog_req.frdefault &= interp_req.frdefault;
738 prog_req.fre &= interp_req.fre;
739
740 bool cpu_has_mips_r2_r6 = env->insn_flags & ISA_MIPS32R2 ||
741 env->insn_flags & ISA_MIPS64R2 ||
742 env->insn_flags & ISA_MIPS32R6 ||
743 env->insn_flags & ISA_MIPS64R6;
744
745 if (prog_req.fre && !prog_req.frdefault && !prog_req.fr1) {
746 env->CP0_Config5 |= (1 << CP0C5_FRE);
747 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
748 env->hflags |= MIPS_HFLAG_FRE;
749 }
750 } else if ((prog_req.fr1 && prog_req.frdefault) ||
751 (prog_req.single && !prog_req.frdefault)) {
752 if ((env->active_fpu.fcr0 & (1 << FCR0_F64)
753 && cpu_has_mips_r2_r6) || prog_req.fr1) {
754 env->CP0_Status |= (1 << CP0St_FR);
755 env->hflags |= MIPS_HFLAG_F64;
756 }
757 } else if (!prog_req.fre && !prog_req.frdefault &&
758 !prog_req.fr1 && !prog_req.single && !prog_req.soft) {
759 fprintf(stderr, "qemu: Can't find a matching FPU mode\n");
760 exit(1);
761 }
762
722ac96c
AM		 763 if (env->insn_flags & ISA_NANOMIPS32) {
764 return;
765 }
58908ef6
LV		 766 if (((info->elf_flags & EF_MIPS_NAN2008) != 0) !=
767 ((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) != 0)) {
768 if ((env->active_fpu.fcr31_rw_bitmask &
769 (1 << FCR31_NAN2008)) == 0) {
770 fprintf(stderr, "ELF binary's NaN mode not supported by CPU\n");
771 exit(1);
772 }
773 if ((info->elf_flags & EF_MIPS_NAN2008) != 0) {
774 env->active_fpu.fcr31 |= (1 << FCR31_NAN2008);
775 } else {
776 env->active_fpu.fcr31 &= ~(1 << FCR31_NAN2008);
777 }
778 restore_snan_bit_mode(env);
779 }
cd71c089 780}
QEMU mirror