scall64-n32.S 9.9 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. jalr t2 # Do The Real Thing (TM)
  48. li t0, -EMAXERRNO - 1 # error?
  49. sltu t0, t0, v0
  50. sd t0, PT_R7(sp) # set error flag
  51. beqz t0, 1f
  52. ld t1, PT_R2(sp) # syscall number
  53. dnegu v0 # error
  54. sd t1, PT_R0(sp) # save it for syscall restarting
  55. 1: sd v0, PT_R2(sp) # result
  56. j syscall_exit_partial
  57. /* ------------------------------------------------------------------------ */
  58. n32_syscall_trace_entry:
  59. SAVE_STATIC
  60. move s0, t2
  61. move a0, sp
  62. jal syscall_trace_enter
  63. move t0, s0
  64. RESTORE_STATIC
  65. ld a0, PT_R4(sp) # Restore argument registers
  66. ld a1, PT_R5(sp)
  67. ld a2, PT_R6(sp)
  68. ld a3, PT_R7(sp)
  69. ld a4, PT_R8(sp)
  70. ld a5, PT_R9(sp)
  71. jalr t0
  72. li t0, -EMAXERRNO - 1 # error?
  73. sltu t0, t0, v0
  74. sd t0, PT_R7(sp) # set error flag
  75. beqz t0, 1f
  76. ld t1, PT_R2(sp) # syscall number
  77. dnegu v0 # error
  78. sd t1, PT_R0(sp) # save it for syscall restarting
  79. 1: sd v0, PT_R2(sp) # result
  80. j syscall_exit
  81. not_n32_scall:
  82. /* This is not an n32 compatibility syscall, pass it on to
  83. the n64 syscall handlers. */
  84. j handle_sys64
  85. END(handle_sysn32)
  86. .type sysn32_call_table, @object
  87. EXPORT(sysn32_call_table)
  88. PTR sys_read /* 6000 */
  89. PTR sys_write
  90. PTR sys_open
  91. PTR sys_close
  92. PTR sys_newstat
  93. PTR sys_newfstat /* 6005 */
  94. PTR sys_newlstat
  95. PTR sys_poll
  96. PTR sys_lseek
  97. PTR sys_mips_mmap
  98. PTR sys_mprotect /* 6010 */
  99. PTR sys_munmap
  100. PTR sys_brk
  101. PTR compat_sys_rt_sigaction
  102. PTR compat_sys_rt_sigprocmask
  103. PTR compat_sys_ioctl /* 6015 */
  104. PTR sys_pread64
  105. PTR sys_pwrite64
  106. PTR compat_sys_readv
  107. PTR compat_sys_writev
  108. PTR sys_access /* 6020 */
  109. PTR sysm_pipe
  110. PTR compat_sys_select
  111. PTR sys_sched_yield
  112. PTR sys_mremap
  113. PTR sys_msync /* 6025 */
  114. PTR sys_mincore
  115. PTR sys_madvise
  116. PTR sys_shmget
  117. PTR sys_shmat
  118. PTR compat_sys_shmctl /* 6030 */
  119. PTR sys_dup
  120. PTR sys_dup2
  121. PTR sys_pause
  122. PTR compat_sys_nanosleep
  123. PTR compat_sys_getitimer /* 6035 */
  124. PTR compat_sys_setitimer
  125. PTR sys_alarm
  126. PTR sys_getpid
  127. PTR compat_sys_sendfile
  128. PTR sys_socket /* 6040 */
  129. PTR sys_connect
  130. PTR sys_accept
  131. PTR sys_sendto
  132. PTR compat_sys_recvfrom
  133. PTR compat_sys_sendmsg /* 6045 */
  134. PTR compat_sys_recvmsg
  135. PTR sys_shutdown
  136. PTR sys_bind
  137. PTR sys_listen
  138. PTR sys_getsockname /* 6050 */
  139. PTR sys_getpeername
  140. PTR sys_socketpair
  141. PTR compat_sys_setsockopt
  142. PTR sys_getsockopt
  143. PTR __sys_clone /* 6055 */
  144. PTR __sys_fork
  145. PTR compat_sys_execve
  146. PTR sys_exit
  147. PTR compat_sys_wait4
  148. PTR sys_kill /* 6060 */
  149. PTR sys_newuname
  150. PTR sys_semget
  151. PTR sys_semop
  152. PTR compat_sys_semctl
  153. PTR sys_shmdt /* 6065 */
  154. PTR sys_msgget
  155. PTR compat_sys_msgsnd
  156. PTR compat_sys_msgrcv
  157. PTR compat_sys_msgctl
  158. PTR compat_sys_fcntl /* 6070 */
  159. PTR sys_flock
  160. PTR sys_fsync
  161. PTR sys_fdatasync
  162. PTR sys_truncate
  163. PTR sys_ftruncate /* 6075 */
  164. PTR compat_sys_getdents
  165. PTR sys_getcwd
  166. PTR sys_chdir
  167. PTR sys_fchdir
  168. PTR sys_rename /* 6080 */
  169. PTR sys_mkdir
  170. PTR sys_rmdir
  171. PTR sys_creat
  172. PTR sys_link
  173. PTR sys_unlink /* 6085 */
  174. PTR sys_symlink
  175. PTR sys_readlink
  176. PTR sys_chmod
  177. PTR sys_fchmod
  178. PTR sys_chown /* 6090 */
  179. PTR sys_fchown
  180. PTR sys_lchown
  181. PTR sys_umask
  182. PTR compat_sys_gettimeofday
  183. PTR compat_sys_getrlimit /* 6095 */
  184. PTR compat_sys_getrusage
  185. PTR compat_sys_sysinfo
  186. PTR compat_sys_times
  187. PTR compat_sys_ptrace
  188. PTR sys_getuid /* 6100 */
  189. PTR sys_syslog
  190. PTR sys_getgid
  191. PTR sys_setuid
  192. PTR sys_setgid
  193. PTR sys_geteuid /* 6105 */
  194. PTR sys_getegid
  195. PTR sys_setpgid
  196. PTR sys_getppid
  197. PTR sys_getpgrp
  198. PTR sys_setsid /* 6110 */
  199. PTR sys_setreuid
  200. PTR sys_setregid
  201. PTR sys_getgroups
  202. PTR sys_setgroups
  203. PTR sys_setresuid /* 6115 */
  204. PTR sys_getresuid
  205. PTR sys_setresgid
  206. PTR sys_getresgid
  207. PTR sys_getpgid
  208. PTR sys_setfsuid /* 6120 */
  209. PTR sys_setfsgid
  210. PTR sys_getsid
  211. PTR sys_capget
  212. PTR sys_capset
  213. PTR compat_sys_rt_sigpending /* 6125 */
  214. PTR compat_sys_rt_sigtimedwait
  215. PTR compat_sys_rt_sigqueueinfo
  216. PTR compat_sys_rt_sigsuspend
  217. PTR compat_sys_sigaltstack
  218. PTR compat_sys_utime /* 6130 */
  219. PTR sys_mknod
  220. PTR sys_32_personality
  221. PTR compat_sys_ustat
  222. PTR compat_sys_statfs
  223. PTR compat_sys_fstatfs /* 6135 */
  224. PTR sys_sysfs
  225. PTR sys_getpriority
  226. PTR sys_setpriority
  227. PTR sys_sched_setparam
  228. PTR sys_sched_getparam /* 6140 */
  229. PTR sys_sched_setscheduler
  230. PTR sys_sched_getscheduler
  231. PTR sys_sched_get_priority_max
  232. PTR sys_sched_get_priority_min
  233. PTR compat_sys_sched_rr_get_interval /* 6145 */
  234. PTR sys_mlock
  235. PTR sys_munlock
  236. PTR sys_mlockall
  237. PTR sys_munlockall
  238. PTR sys_vhangup /* 6150 */
  239. PTR sys_pivot_root
  240. PTR compat_sys_sysctl
  241. PTR sys_prctl
  242. PTR compat_sys_adjtimex
  243. PTR compat_sys_setrlimit /* 6155 */
  244. PTR sys_chroot
  245. PTR sys_sync
  246. PTR sys_acct
  247. PTR compat_sys_settimeofday
  248. PTR compat_sys_mount /* 6160 */
  249. PTR sys_umount
  250. PTR sys_swapon
  251. PTR sys_swapoff
  252. PTR sys_reboot
  253. PTR sys_sethostname /* 6165 */
  254. PTR sys_setdomainname
  255. PTR sys_ni_syscall /* was create_module */
  256. PTR sys_init_module
  257. PTR sys_delete_module
  258. PTR sys_ni_syscall /* 6170, was get_kernel_syms */
  259. PTR sys_ni_syscall /* was query_module */
  260. PTR sys_quotactl
  261. PTR sys_ni_syscall /* was nfsservctl */
  262. PTR sys_ni_syscall /* res. for getpmsg */
  263. PTR sys_ni_syscall /* 6175 for putpmsg */
  264. PTR sys_ni_syscall /* res. for afs_syscall */
  265. PTR sys_ni_syscall /* res. for security */
  266. PTR sys_gettid
  267. PTR sys_readahead
  268. PTR sys_setxattr /* 6180 */
  269. PTR sys_lsetxattr
  270. PTR sys_fsetxattr
  271. PTR sys_getxattr
  272. PTR sys_lgetxattr
  273. PTR sys_fgetxattr /* 6185 */
  274. PTR sys_listxattr
  275. PTR sys_llistxattr
  276. PTR sys_flistxattr
  277. PTR sys_removexattr
  278. PTR sys_lremovexattr /* 6190 */
  279. PTR sys_fremovexattr
  280. PTR sys_tkill
  281. PTR sys_ni_syscall
  282. PTR compat_sys_futex
  283. PTR compat_sys_sched_setaffinity /* 6195 */
  284. PTR compat_sys_sched_getaffinity
  285. PTR sys_cacheflush
  286. PTR sys_cachectl
  287. PTR sys_sysmips
  288. PTR compat_sys_io_setup /* 6200 */
  289. PTR sys_io_destroy
  290. PTR compat_sys_io_getevents
  291. PTR compat_sys_io_submit
  292. PTR sys_io_cancel
  293. PTR sys_exit_group /* 6205 */
  294. PTR sys_lookup_dcookie
  295. PTR sys_epoll_create
  296. PTR sys_epoll_ctl
  297. PTR sys_epoll_wait
  298. PTR sys_remap_file_pages /* 6210 */
  299. PTR sysn32_rt_sigreturn
  300. PTR compat_sys_fcntl64
  301. PTR sys_set_tid_address
  302. PTR sys_restart_syscall
  303. PTR compat_sys_semtimedop /* 6215 */
  304. PTR sys_fadvise64_64
  305. PTR compat_sys_statfs64
  306. PTR compat_sys_fstatfs64
  307. PTR sys_sendfile64
  308. PTR compat_sys_timer_create /* 6220 */
  309. PTR compat_sys_timer_settime
  310. PTR compat_sys_timer_gettime
  311. PTR sys_timer_getoverrun
  312. PTR sys_timer_delete
  313. PTR compat_sys_clock_settime /* 6225 */
  314. PTR compat_sys_clock_gettime
  315. PTR compat_sys_clock_getres
  316. PTR compat_sys_clock_nanosleep
  317. PTR sys_tgkill
  318. PTR compat_sys_utimes /* 6230 */
  319. PTR sys_ni_syscall /* sys_mbind */
  320. PTR sys_ni_syscall /* sys_get_mempolicy */
  321. PTR sys_ni_syscall /* sys_set_mempolicy */
  322. PTR compat_sys_mq_open
  323. PTR sys_mq_unlink /* 6235 */
  324. PTR compat_sys_mq_timedsend
  325. PTR compat_sys_mq_timedreceive
  326. PTR compat_sys_mq_notify
  327. PTR compat_sys_mq_getsetattr
  328. PTR sys_ni_syscall /* 6240, sys_vserver */
  329. PTR compat_sys_waitid
  330. PTR sys_ni_syscall /* available, was setaltroot */
  331. PTR sys_add_key
  332. PTR sys_request_key
  333. PTR sys_keyctl /* 6245 */
  334. PTR sys_set_thread_area
  335. PTR sys_inotify_init
  336. PTR sys_inotify_add_watch
  337. PTR sys_inotify_rm_watch
  338. PTR sys_migrate_pages /* 6250 */
  339. PTR sys_openat
  340. PTR sys_mkdirat
  341. PTR sys_mknodat
  342. PTR sys_fchownat
  343. PTR compat_sys_futimesat /* 6255 */
  344. PTR sys_newfstatat
  345. PTR sys_unlinkat
  346. PTR sys_renameat
  347. PTR sys_linkat
  348. PTR sys_symlinkat /* 6260 */
  349. PTR sys_readlinkat
  350. PTR sys_fchmodat
  351. PTR sys_faccessat
  352. PTR compat_sys_pselect6
  353. PTR compat_sys_ppoll /* 6265 */
  354. PTR sys_unshare
  355. PTR sys_splice
  356. PTR sys_sync_file_range
  357. PTR sys_tee
  358. PTR compat_sys_vmsplice /* 6270 */
  359. PTR sys_move_pages
  360. PTR compat_sys_set_robust_list
  361. PTR compat_sys_get_robust_list
  362. PTR compat_sys_kexec_load
  363. PTR sys_getcpu /* 6275 */
  364. PTR compat_sys_epoll_pwait
  365. PTR sys_ioprio_set
  366. PTR sys_ioprio_get
  367. PTR compat_sys_utimensat
  368. PTR compat_sys_signalfd /* 6280 */
  369. PTR sys_ni_syscall /* was timerfd */
  370. PTR sys_eventfd
  371. PTR sys_fallocate
  372. PTR sys_timerfd_create
  373. PTR compat_sys_timerfd_gettime /* 6285 */
  374. PTR compat_sys_timerfd_settime
  375. PTR compat_sys_signalfd4
  376. PTR sys_eventfd2
  377. PTR sys_epoll_create1
  378. PTR sys_dup3 /* 6290 */
  379. PTR sys_pipe2
  380. PTR sys_inotify_init1
  381. PTR compat_sys_preadv
  382. PTR compat_sys_pwritev
  383. PTR compat_sys_rt_tgsigqueueinfo /* 6295 */
  384. PTR sys_perf_event_open
  385. PTR sys_accept4
  386. PTR compat_sys_recvmmsg
  387. PTR sys_getdents64
  388. PTR sys_fanotify_init /* 6300 */
  389. PTR sys_fanotify_mark
  390. PTR sys_prlimit64
  391. PTR sys_name_to_handle_at
  392. PTR sys_open_by_handle_at
  393. PTR compat_sys_clock_adjtime /* 6305 */
  394. PTR sys_syncfs
  395. PTR compat_sys_sendmmsg
  396. PTR sys_setns
  397. PTR compat_sys_process_vm_readv
  398. PTR compat_sys_process_vm_writev /* 6310 */
  399. PTR sys_kcmp
  400. PTR sys_finit_module
  401. .size sysn32_call_table,.-sysn32_call_table