scall64-n32.S 10.0 KB

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  1. /*
  2. * This file is subject to the terms and conditions of the GNU General Public
  3. * License. See the file "COPYING" in the main directory of this archive
  4. * for more details.
  5. *
  6. * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01 by Ralf Baechle
  7. * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  8. * Copyright (C) 2001 MIPS Technologies, Inc.
  9. */
  10. #include <linux/errno.h>
  11. #include <asm/asm.h>
  12. #include <asm/asmmacro.h>
  13. #include <asm/irqflags.h>
  14. #include <asm/mipsregs.h>
  15. #include <asm/regdef.h>
  16. #include <asm/stackframe.h>
  17. #include <asm/thread_info.h>
  18. #include <asm/unistd.h>
  19. #ifndef CONFIG_MIPS32_O32
  20. /* No O32, so define handle_sys here */
  21. #define handle_sysn32 handle_sys
  22. #endif
  23. .align 5
  24. NESTED(handle_sysn32, PT_SIZE, sp)
  25. #ifndef CONFIG_MIPS32_O32
  26. .set noat
  27. SAVE_SOME
  28. TRACE_IRQS_ON_RELOAD
  29. STI
  30. .set at
  31. #endif
  32. dsubu t0, v0, __NR_N32_Linux # check syscall number
  33. sltiu t0, t0, __NR_N32_Linux_syscalls + 1
  34. #ifndef CONFIG_MIPS32_O32
  35. ld t1, PT_EPC(sp) # skip syscall on return
  36. daddiu t1, 4 # skip to next instruction
  37. sd t1, PT_EPC(sp)
  38. #endif
  39. beqz t0, not_n32_scall
  40. dsll t0, v0, 3 # offset into table
  41. ld t2, (sysn32_call_table - (__NR_N32_Linux * 8))(t0)
  42. sd a3, PT_R26(sp) # save a3 for syscall restarting
  43. li t1, _TIF_WORK_SYSCALL_ENTRY
  44. LONG_L t0, TI_FLAGS($28) # syscall tracing enabled?
  45. and t0, t1, t0
  46. bnez t0, n32_syscall_trace_entry
  47. syscall_common:
  48. jalr t2 # Do The Real Thing (TM)
  49. li t0, -EMAXERRNO - 1 # error?
  50. sltu t0, t0, v0
  51. sd t0, PT_R7(sp) # set error flag
  52. beqz t0, 1f
  53. ld t1, PT_R2(sp) # syscall number
  54. dnegu v0 # error
  55. sd t1, PT_R0(sp) # save it for syscall restarting
  56. 1: sd v0, PT_R2(sp) # result
  57. j syscall_exit_partial
  58. /* ------------------------------------------------------------------------ */
  59. n32_syscall_trace_entry:
  60. SAVE_STATIC
  61. move s0, t2
  62. move a0, sp
  63. move a1, v0
  64. jal syscall_trace_enter
  65. bltz v0, 1f # seccomp failed? Skip syscall
  66. move t2, s0
  67. RESTORE_STATIC
  68. ld a0, PT_R4(sp) # Restore argument registers
  69. ld a1, PT_R5(sp)
  70. ld a2, PT_R6(sp)
  71. ld a3, PT_R7(sp)
  72. ld a4, PT_R8(sp)
  73. ld a5, PT_R9(sp)
  74. j syscall_common
  75. 1: j syscall_exit
  76. not_n32_scall:
  77. /* This is not an n32 compatibility syscall, pass it on to
  78. the n64 syscall handlers. */
  79. j handle_sys64
  80. END(handle_sysn32)
  81. .type sysn32_call_table, @object
  82. EXPORT(sysn32_call_table)
  83. PTR sys_read /* 6000 */
  84. PTR sys_write
  85. PTR sys_open
  86. PTR sys_close
  87. PTR sys_newstat
  88. PTR sys_newfstat /* 6005 */
  89. PTR sys_newlstat
  90. PTR sys_poll
  91. PTR sys_lseek
  92. PTR sys_mips_mmap
  93. PTR sys_mprotect /* 6010 */
  94. PTR sys_munmap
  95. PTR sys_brk
  96. PTR compat_sys_rt_sigaction
  97. PTR compat_sys_rt_sigprocmask
  98. PTR compat_sys_ioctl /* 6015 */
  99. PTR sys_pread64
  100. PTR sys_pwrite64
  101. PTR compat_sys_readv
  102. PTR compat_sys_writev
  103. PTR sys_access /* 6020 */
  104. PTR sysm_pipe
  105. PTR compat_sys_select
  106. PTR sys_sched_yield
  107. PTR sys_mremap
  108. PTR sys_msync /* 6025 */
  109. PTR sys_mincore
  110. PTR sys_madvise
  111. PTR sys_shmget
  112. PTR sys_shmat
  113. PTR compat_sys_shmctl /* 6030 */
  114. PTR sys_dup
  115. PTR sys_dup2
  116. PTR sys_pause
  117. PTR compat_sys_nanosleep
  118. PTR compat_sys_getitimer /* 6035 */
  119. PTR compat_sys_setitimer
  120. PTR sys_alarm
  121. PTR sys_getpid
  122. PTR compat_sys_sendfile
  123. PTR sys_socket /* 6040 */
  124. PTR sys_connect
  125. PTR sys_accept
  126. PTR sys_sendto
  127. PTR compat_sys_recvfrom
  128. PTR compat_sys_sendmsg /* 6045 */
  129. PTR compat_sys_recvmsg
  130. PTR sys_shutdown
  131. PTR sys_bind
  132. PTR sys_listen
  133. PTR sys_getsockname /* 6050 */
  134. PTR sys_getpeername
  135. PTR sys_socketpair
  136. PTR compat_sys_setsockopt
  137. PTR compat_sys_getsockopt
  138. PTR __sys_clone /* 6055 */
  139. PTR __sys_fork
  140. PTR compat_sys_execve
  141. PTR sys_exit
  142. PTR compat_sys_wait4
  143. PTR sys_kill /* 6060 */
  144. PTR sys_newuname
  145. PTR sys_semget
  146. PTR sys_semop
  147. PTR compat_sys_semctl
  148. PTR sys_shmdt /* 6065 */
  149. PTR sys_msgget
  150. PTR compat_sys_msgsnd
  151. PTR compat_sys_msgrcv
  152. PTR compat_sys_msgctl
  153. PTR compat_sys_fcntl /* 6070 */
  154. PTR sys_flock
  155. PTR sys_fsync
  156. PTR sys_fdatasync
  157. PTR sys_truncate
  158. PTR sys_ftruncate /* 6075 */
  159. PTR compat_sys_getdents
  160. PTR sys_getcwd
  161. PTR sys_chdir
  162. PTR sys_fchdir
  163. PTR sys_rename /* 6080 */
  164. PTR sys_mkdir
  165. PTR sys_rmdir
  166. PTR sys_creat
  167. PTR sys_link
  168. PTR sys_unlink /* 6085 */
  169. PTR sys_symlink
  170. PTR sys_readlink
  171. PTR sys_chmod
  172. PTR sys_fchmod
  173. PTR sys_chown /* 6090 */
  174. PTR sys_fchown
  175. PTR sys_lchown
  176. PTR sys_umask
  177. PTR compat_sys_gettimeofday
  178. PTR compat_sys_getrlimit /* 6095 */
  179. PTR compat_sys_getrusage
  180. PTR compat_sys_sysinfo
  181. PTR compat_sys_times
  182. PTR compat_sys_ptrace
  183. PTR sys_getuid /* 6100 */
  184. PTR sys_syslog
  185. PTR sys_getgid
  186. PTR sys_setuid
  187. PTR sys_setgid
  188. PTR sys_geteuid /* 6105 */
  189. PTR sys_getegid
  190. PTR sys_setpgid
  191. PTR sys_getppid
  192. PTR sys_getpgrp
  193. PTR sys_setsid /* 6110 */
  194. PTR sys_setreuid
  195. PTR sys_setregid
  196. PTR sys_getgroups
  197. PTR sys_setgroups
  198. PTR sys_setresuid /* 6115 */
  199. PTR sys_getresuid
  200. PTR sys_setresgid
  201. PTR sys_getresgid
  202. PTR sys_getpgid
  203. PTR sys_setfsuid /* 6120 */
  204. PTR sys_setfsgid
  205. PTR sys_getsid
  206. PTR sys_capget
  207. PTR sys_capset
  208. PTR compat_sys_rt_sigpending /* 6125 */
  209. PTR compat_sys_rt_sigtimedwait
  210. PTR compat_sys_rt_sigqueueinfo
  211. PTR compat_sys_rt_sigsuspend
  212. PTR compat_sys_sigaltstack
  213. PTR compat_sys_utime /* 6130 */
  214. PTR sys_mknod
  215. PTR sys_32_personality
  216. PTR compat_sys_ustat
  217. PTR compat_sys_statfs
  218. PTR compat_sys_fstatfs /* 6135 */
  219. PTR sys_sysfs
  220. PTR sys_getpriority
  221. PTR sys_setpriority
  222. PTR sys_sched_setparam
  223. PTR sys_sched_getparam /* 6140 */
  224. PTR sys_sched_setscheduler
  225. PTR sys_sched_getscheduler
  226. PTR sys_sched_get_priority_max
  227. PTR sys_sched_get_priority_min
  228. PTR compat_sys_sched_rr_get_interval /* 6145 */
  229. PTR sys_mlock
  230. PTR sys_munlock
  231. PTR sys_mlockall
  232. PTR sys_munlockall
  233. PTR sys_vhangup /* 6150 */
  234. PTR sys_pivot_root
  235. PTR compat_sys_sysctl
  236. PTR sys_prctl
  237. PTR compat_sys_adjtimex
  238. PTR compat_sys_setrlimit /* 6155 */
  239. PTR sys_chroot
  240. PTR sys_sync
  241. PTR sys_acct
  242. PTR compat_sys_settimeofday
  243. PTR compat_sys_mount /* 6160 */
  244. PTR sys_umount
  245. PTR sys_swapon
  246. PTR sys_swapoff
  247. PTR sys_reboot
  248. PTR sys_sethostname /* 6165 */
  249. PTR sys_setdomainname
  250. PTR sys_ni_syscall /* was create_module */
  251. PTR sys_init_module
  252. PTR sys_delete_module
  253. PTR sys_ni_syscall /* 6170, was get_kernel_syms */
  254. PTR sys_ni_syscall /* was query_module */
  255. PTR sys_quotactl
  256. PTR sys_ni_syscall /* was nfsservctl */
  257. PTR sys_ni_syscall /* res. for getpmsg */
  258. PTR sys_ni_syscall /* 6175 for putpmsg */
  259. PTR sys_ni_syscall /* res. for afs_syscall */
  260. PTR sys_ni_syscall /* res. for security */
  261. PTR sys_gettid
  262. PTR sys_readahead
  263. PTR sys_setxattr /* 6180 */
  264. PTR sys_lsetxattr
  265. PTR sys_fsetxattr
  266. PTR sys_getxattr
  267. PTR sys_lgetxattr
  268. PTR sys_fgetxattr /* 6185 */
  269. PTR sys_listxattr
  270. PTR sys_llistxattr
  271. PTR sys_flistxattr
  272. PTR sys_removexattr
  273. PTR sys_lremovexattr /* 6190 */
  274. PTR sys_fremovexattr
  275. PTR sys_tkill
  276. PTR sys_ni_syscall
  277. PTR compat_sys_futex
  278. PTR compat_sys_sched_setaffinity /* 6195 */
  279. PTR compat_sys_sched_getaffinity
  280. PTR sys_cacheflush
  281. PTR sys_cachectl
  282. PTR __sys_sysmips
  283. PTR compat_sys_io_setup /* 6200 */
  284. PTR sys_io_destroy
  285. PTR compat_sys_io_getevents
  286. PTR compat_sys_io_submit
  287. PTR sys_io_cancel
  288. PTR sys_exit_group /* 6205 */
  289. PTR sys_lookup_dcookie
  290. PTR sys_epoll_create
  291. PTR sys_epoll_ctl
  292. PTR sys_epoll_wait
  293. PTR sys_remap_file_pages /* 6210 */
  294. PTR sysn32_rt_sigreturn
  295. PTR compat_sys_fcntl64
  296. PTR sys_set_tid_address
  297. PTR sys_restart_syscall
  298. PTR compat_sys_semtimedop /* 6215 */
  299. PTR sys_fadvise64_64
  300. PTR compat_sys_statfs64
  301. PTR compat_sys_fstatfs64
  302. PTR sys_sendfile64
  303. PTR compat_sys_timer_create /* 6220 */
  304. PTR compat_sys_timer_settime
  305. PTR compat_sys_timer_gettime
  306. PTR sys_timer_getoverrun
  307. PTR sys_timer_delete
  308. PTR compat_sys_clock_settime /* 6225 */
  309. PTR compat_sys_clock_gettime
  310. PTR compat_sys_clock_getres
  311. PTR compat_sys_clock_nanosleep
  312. PTR sys_tgkill
  313. PTR compat_sys_utimes /* 6230 */
  314. PTR compat_sys_mbind
  315. PTR compat_sys_get_mempolicy
  316. PTR compat_sys_set_mempolicy
  317. PTR compat_sys_mq_open
  318. PTR sys_mq_unlink /* 6235 */
  319. PTR compat_sys_mq_timedsend
  320. PTR compat_sys_mq_timedreceive
  321. PTR compat_sys_mq_notify
  322. PTR compat_sys_mq_getsetattr
  323. PTR sys_ni_syscall /* 6240, sys_vserver */
  324. PTR compat_sys_waitid
  325. PTR sys_ni_syscall /* available, was setaltroot */
  326. PTR sys_add_key
  327. PTR sys_request_key
  328. PTR compat_sys_keyctl /* 6245 */
  329. PTR sys_set_thread_area
  330. PTR sys_inotify_init
  331. PTR sys_inotify_add_watch
  332. PTR sys_inotify_rm_watch
  333. PTR compat_sys_migrate_pages /* 6250 */
  334. PTR sys_openat
  335. PTR sys_mkdirat
  336. PTR sys_mknodat
  337. PTR sys_fchownat
  338. PTR compat_sys_futimesat /* 6255 */
  339. PTR sys_newfstatat
  340. PTR sys_unlinkat
  341. PTR sys_renameat
  342. PTR sys_linkat
  343. PTR sys_symlinkat /* 6260 */
  344. PTR sys_readlinkat
  345. PTR sys_fchmodat
  346. PTR sys_faccessat
  347. PTR compat_sys_pselect6
  348. PTR compat_sys_ppoll /* 6265 */
  349. PTR sys_unshare
  350. PTR sys_splice
  351. PTR sys_sync_file_range
  352. PTR sys_tee
  353. PTR compat_sys_vmsplice /* 6270 */
  354. PTR compat_sys_move_pages
  355. PTR compat_sys_set_robust_list
  356. PTR compat_sys_get_robust_list
  357. PTR compat_sys_kexec_load
  358. PTR sys_getcpu /* 6275 */
  359. PTR compat_sys_epoll_pwait
  360. PTR sys_ioprio_set
  361. PTR sys_ioprio_get
  362. PTR compat_sys_utimensat
  363. PTR compat_sys_signalfd /* 6280 */
  364. PTR sys_ni_syscall /* was timerfd */
  365. PTR sys_eventfd
  366. PTR sys_fallocate
  367. PTR sys_timerfd_create
  368. PTR compat_sys_timerfd_gettime /* 6285 */
  369. PTR compat_sys_timerfd_settime
  370. PTR compat_sys_signalfd4
  371. PTR sys_eventfd2
  372. PTR sys_epoll_create1
  373. PTR sys_dup3 /* 6290 */
  374. PTR sys_pipe2
  375. PTR sys_inotify_init1
  376. PTR compat_sys_preadv
  377. PTR compat_sys_pwritev
  378. PTR compat_sys_rt_tgsigqueueinfo /* 6295 */
  379. PTR sys_perf_event_open
  380. PTR sys_accept4
  381. PTR compat_sys_recvmmsg
  382. PTR sys_getdents64
  383. PTR sys_fanotify_init /* 6300 */
  384. PTR sys_fanotify_mark
  385. PTR sys_prlimit64
  386. PTR sys_name_to_handle_at
  387. PTR sys_open_by_handle_at
  388. PTR compat_sys_clock_adjtime /* 6305 */
  389. PTR sys_syncfs
  390. PTR compat_sys_sendmmsg
  391. PTR sys_setns
  392. PTR compat_sys_process_vm_readv
  393. PTR compat_sys_process_vm_writev /* 6310 */
  394. PTR sys_kcmp
  395. PTR sys_finit_module
  396. PTR sys_sched_setattr
  397. PTR sys_sched_getattr
  398. PTR sys_renameat2 /* 6315 */
  399. PTR sys_seccomp
  400. PTR sys_getrandom
  401. PTR sys_memfd_create
  402. PTR sys_bpf
  403. PTR compat_sys_execveat /* 6320 */
  404. PTR sys_userfaultfd
  405. PTR sys_membarrier
  406. PTR sys_mlock2
  407. .size sysn32_call_table,.-sysn32_call_table