[MIPS] IRIX: Goodbye and thanks for all the fish

Never terribly functional or popular, plagued by hard to fix bugs the time
to say goodbye has more than arrived.

Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/Kconfig

···
 config TRAD_SIGNALS
 	bool
 
-config BINFMT_IRIX
-	bool "Include IRIX binary compatibility"
-	depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
-
 config MIPS32_COMPAT
 	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
 	depends on 64BIT

arch/mips/kernel/Makefile

···
 obj-$(CONFIG_CSRC_SB1250)	+= csrc-sb1250.o
 obj-$(CONFIG_SYNC_R4K)		+= sync-r4k.o
 
-binfmt_irix-objs	:= irixelf.o irixinv.o irixioctl.o irixsig.o	\
-			   irix5sys.o sysirix.o
-
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_MODULES)		+= mips_ksyms.o module.o
 
···
 
 obj-$(CONFIG_32BIT)		+= scall32-o32.o
 obj-$(CONFIG_64BIT)		+= scall64-64.o
-obj-$(CONFIG_BINFMT_IRIX)	+= binfmt_irix.o
 obj-$(CONFIG_MIPS32_COMPAT)	+= linux32.o ptrace32.o signal32.o
 obj-$(CONFIG_MIPS32_N32)	+= binfmt_elfn32.o scall64-n32.o signal_n32.o
 obj-$(CONFIG_MIPS32_O32)	+= binfmt_elfo32.o scall64-o32.o

arch/mips/kernel/irix5sys.S

···
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * 32-bit IRIX5 ABI system call table derived from original file 'irix5sys.h'
- * created by David S. Miller.
- *
- * Copyright (C) 1996 - 2004 David S. Miller <[e-mail]>
- * Copyright (C) 2004 Steven J. Hill <[e-mail]>
- */
-#include <asm/asm.h>
-
-	/*
-	 * Key:
-	 *         V == Valid and should work as expected for most cases.
-	 *        HV == Half Valid, some things will work, some likely will not
-	 *        IV == InValid, certainly will not work at all yet
-	 *        ?V == ?'ably Valid, I have not done enough looking into it
-	 *        DC == Don't Care, a rats ass we couldn't give
-	 */
-
-	.macro	irix5syscalltable
-
-	sys	sys_syscall	0	/* 1000  sysindir()	       V*/
-	sys	sys_exit	1	/* 1001  exit()		       V*/
-	sys	sys_fork	0	/* 1002  fork()		       V*/
-	sys	sys_read	3	/* 1003  read()		       V*/
-	sys	sys_write	3	/* 1004  write()	       V*/
-	sys	sys_open	3	/* 1005  open()		       V*/
-	sys	sys_close	1	/* 1006  close()	       V*/
-	sys	irix_unimp	0	/* 1007  (XXX IRIX 4 wait)     V*/
-	sys	sys_creat	2	/* 1008  creat()	       V*/
-	sys	sys_link	2	/* 1009  link()		       V*/
-	sys	sys_unlink	1	/* 1010  unlink()	       V*/
-	sys	irix_exec	0	/* 1011  exec()		       V*/
-	sys	sys_chdir	1	/* 1012  chdir()	       V*/
-	sys	irix_gtime	0	/* 1013  time()		       V*/
-	sys	irix_unimp	0	/* 1014  (XXX IRIX 4 mknod)    V*/
-	sys	sys_chmod	2	/* 1015  chmod()	       V*/
-	sys	sys_chown	3	/* 1016  chown()	       V*/
-	sys	irix_brk	1	/* 1017  break()	       V*/
-	sys	irix_unimp	0	/* 1018  (XXX IRIX 4 stat)     V*/
-	sys	sys_lseek	3	/* 1019  lseek()     XXX64bit HV*/
-	sys	irix_getpid	0	/* 1020  getpid()	       V*/
-	sys	irix_mount	6	/* 1021  mount()	      IV*/
-	sys	sys_umount	1	/* 1022  umount()	       V*/
-	sys	sys_setuid	1	/* 1023  setuid()	       V*/
-	sys	irix_getuid	0	/* 1024  getuid()	       V*/
-	sys	irix_stime	1	/* 1025  stime()	       V*/
-	sys	irix_unimp	4	/* 1026  XXX ptrace()	      IV*/
-	sys	irix_alarm	1	/* 1027  alarm()	       V*/
-	sys	irix_unimp	0	/* 1028  (XXX IRIX 4 fstat)    V*/
-	sys	irix_pause	0	/* 1029  pause()	       V*/
-	sys	sys_utime	2	/* 1030  utime()	       V*/
-	sys	irix_unimp	0	/* 1031  nuthin'	       V*/
-	sys	irix_unimp	0	/* 1032  nobody home man...    V*/
-	sys	sys_access	2	/* 1033  access()	       V*/
-	sys	sys_nice	1	/* 1034  nice()		       V*/
-	sys	irix_statfs	2	/* 1035  statfs()	       V*/
-	sys	sys_sync	0	/* 1036  sync()		       V*/
-	sys	sys_kill	2	/* 1037  kill()		       V*/
-	sys	irix_fstatfs	2	/* 1038  fstatfs()	       V*/
-	sys	irix_setpgrp	1	/* 1039  setpgrp()	       V*/
-	sys	irix_syssgi	0	/* 1040  syssgi()	      HV*/
-	sys	sys_dup		1	/* 1041  dup()		       V*/
-	sys	sys_pipe	0	/* 1042  pipe()		       V*/
-	sys	irix_times	1	/* 1043  times()	       V*/
-	sys	irix_unimp	0	/* 1044  XXX profil()	      IV*/
-	sys	irix_unimp	0	/* 1045  XXX lock()	      IV*/
-	sys	sys_setgid	1	/* 1046  setgid()	       V*/
-	sys	irix_getgid	0	/* 1047  getgid()	       V*/
-	sys	irix_unimp	0	/* 1048  (XXX IRIX 4 ssig)     V*/
-	sys	irix_msgsys	6	/* 1049  sys_msgsys	       V*/
-	sys	sys_sysmips	4	/* 1050  sysmips()	      HV*/
-	sys	irix_unimp	0	/* 1051	 XXX sysacct()	      IV*/
-	sys	irix_shmsys	5	/* 1052  sys_shmsys	       V*/
-	sys	irix_semsys	0	/* 1053  sys_semsys	       V*/
-	sys	irix_ioctl	3	/* 1054  ioctl()	      HV*/
-	sys	irix_uadmin	0	/* 1055  XXX sys_uadmin()     HC*/
-	sys	irix_sysmp	0	/* 1056  sysmp()	      HV*/
-	sys	irix_utssys	4	/* 1057  sys_utssys()	      HV*/
-	sys	irix_unimp	0	/* 1058  nada enchilada	       V*/
-	sys	irix_exece	0	/* 1059  exece()	       V*/
-	sys	sys_umask	1	/* 1060  umask()	       V*/
-	sys	sys_chroot	1	/* 1061  chroot()	       V*/
-	sys	irix_fcntl	3	/* 1062  fcntl()	      ?V*/
-	sys	irix_ulimit	2	/* 1063  ulimit()	      HV*/
-	sys	irix_unimp	0	/* 1064  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1065  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1066  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1067  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1068  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1069  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1070  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1071  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1072  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1073  XXX AFS shit	      DC*/
-	sys	irix_unimp	0	/* 1074  nuttin'	       V*/
-	sys	irix_unimp	0	/* 1075  XXX sys_getrlimit64()IV*/
-	sys	irix_unimp	0	/* 1076  XXX sys_setrlimit64()IV*/
-	sys	sys_nanosleep	2	/* 1077  nanosleep()	       V*/
-	sys	irix_lseek64	5	/* 1078  lseek64()	      ?V*/
-	sys	sys_rmdir	1	/* 1079  rmdir()	       V*/
-	sys	sys_mkdir	2	/* 1080  mkdir()	       V*/
-	sys	sys_getdents	3	/* 1081  getdents()	       V*/
-	sys	irix_sginap	1	/* 1082  sys_sginap()	       V*/
-	sys	irix_sgikopt	3	/* 1083  sys_sgikopt()	      DC*/
-	sys	sys_sysfs	3	/* 1084  sysfs()	      ?V*/
-	sys	irix_unimp	0	/* 1085  XXX sys_getmsg()     DC*/
-	sys	irix_unimp	0	/* 1086  XXX sys_putmsg()     DC*/
-	sys	sys_poll	3	/* 1087  poll()	               V*/
-	sys	irix_sigreturn	0	/* 1088  sigreturn()	      ?V*/
-	sys	sys_accept	3	/* 1089  accept()	       V*/
-	sys	sys_bind	3	/* 1090  bind()		       V*/
-	sys	sys_connect	3	/* 1091  connect()	       V*/
-	sys	irix_gethostid	0	/* 1092  sys_gethostid()      ?V*/
-	sys	sys_getpeername	3	/* 1093  getpeername()	       V*/
-	sys	sys_getsockname	3	/* 1094  getsockname()	       V*/
-	sys	sys_getsockopt	5	/* 1095  getsockopt()	       V*/
-	sys	sys_listen	2	/* 1096  listen()	       V*/
-	sys	sys_recv	4	/* 1097  recv()		       V*/
-	sys	sys_recvfrom	6	/* 1098  recvfrom()	       V*/
-	sys	sys_recvmsg	3	/* 1099  recvmsg()	       V*/
-	sys	sys_select	5	/* 1100  select()	       V*/
-	sys	sys_send	4	/* 1101  send()		       V*/
-	sys	sys_sendmsg	3	/* 1102  sendmsg()	       V*/
-	sys	sys_sendto	6	/* 1103  sendto()	       V*/
-	sys	irix_sethostid	1	/* 1104  sys_sethostid()      ?V*/
-	sys	sys_setsockopt	5	/* 1105  setsockopt()	       V*/
-	sys	sys_shutdown	2	/* 1106  shutdown()	      ?V*/
-	sys	irix_socket	3	/* 1107  socket()	       V*/
-	sys	sys_gethostname	2	/* 1108  sys_gethostname()    ?V*/
-	sys	sys_sethostname	2	/* 1109  sethostname()	      ?V*/
-	sys	irix_getdomainname 2	/* 1110  sys_getdomainname()  ?V*/
-	sys	sys_setdomainname 2	/* 1111  setdomainname()      ?V*/
-	sys	sys_truncate	2	/* 1112  truncate()	       V*/
-	sys	sys_ftruncate	2	/* 1113  ftruncate()	       V*/
-	sys	sys_rename	2	/* 1114  rename()	       V*/
-	sys	sys_symlink	2	/* 1115  symlink()	       V*/
-	sys	sys_readlink	3	/* 1116  readlink()	       V*/
-	sys	irix_unimp	0	/* 1117  XXX IRIX 4 lstat()   DC*/
-	sys	irix_unimp	0	/* 1118  nothin'	       V*/
-	sys	irix_unimp	0	/* 1119  XXX nfs_svc()	      DC*/
-	sys	irix_unimp	0	/* 1120  XXX nfs_getfh()      DC*/
-	sys	irix_unimp	0	/* 1121  XXX async_daemon()   DC*/
-	sys	irix_unimp	0	/* 1122  XXX exportfs()	      DC*/
-	sys	sys_setregid	2	/* 1123  setregid()	       V*/
-	sys	sys_setreuid	2	/* 1124  setreuid()	       V*/
-	sys	sys_getitimer	2	/* 1125  getitimer()	       V*/
-	sys	sys_setitimer	3	/* 1126  setitimer()	       V*/
-	sys	irix_unimp	1	/* 1127  XXX adjtime() 	      IV*/
-	sys	irix_gettimeofday 1	/* 1128  gettimeofday()	       V*/
-	sys	irix_unimp	0	/* 1129  XXX sproc()	      IV*/
-	sys	irix_prctl	0	/* 1130  prctl()	      HV*/
-	sys	irix_unimp	0	/* 1131  XXX procblk()	      IV*/
-	sys	irix_unimp	0	/* 1132  XXX sprocsp()	      IV*/
-	sys	irix_unimp	0	/* 1133  XXX sgigsc()	      IV*/
-	sys	irix_mmap32	6	/* 1134  mmap()	   XXXflags?  ?V*/
-	sys	sys_munmap	2	/* 1135  munmap()	       V*/
-	sys	sys_mprotect	3	/* 1136  mprotect()	       V*/
-	sys	sys_msync	4	/* 1137  msync()	       V*/
-	sys	irix_madvise	3	/* 1138  madvise()	      DC*/
-	sys	irix_pagelock	3	/* 1139  pagelock()	      IV*/
-	sys	irix_getpagesize 0	/* 1140  getpagesize()         V*/
-	sys	irix_quotactl	0	/* 1141  quotactl()	       V*/
-	sys	irix_unimp	0	/* 1142  nobody home man       V*/
-	sys	sys_getpgid	1	/* 1143  BSD getpgrp()	       V*/
-	sys	irix_BSDsetpgrp 2	/* 1143  BSD setpgrp()	       V*/
-	sys	sys_vhangup	0	/* 1144  vhangup()	       V*/
-	sys	sys_fsync	1	/* 1145  fsync()	       V*/
-	sys	sys_fchdir	1	/* 1146  fchdir()	       V*/
-	sys	sys_getrlimit	2	/* 1147  getrlimit()	      ?V*/
-	sys	sys_setrlimit	2	/* 1148  setrlimit()	      ?V*/
-	sys	sys_cacheflush	3	/* 1150  cacheflush()	      HV*/
-	sys	sys_cachectl	3	/* 1151  cachectl()	      HV*/
-	sys	sys_fchown	3	/* 1152  fchown()	      ?V*/
-	sys	sys_fchmod	2	/* 1153  fchmod()	      ?V*/
-	sys	irix_unimp	0	/* 1154  XXX IRIX 4 wait3()    V*/
-	sys	sys_socketpair	4	/* 1155  socketpair()	       V*/
-	sys	irix_systeminfo	3	/* 1156  systeminfo()	      IV*/
-	sys	irix_uname	1	/* 1157  uname()	      IV*/
-	sys	irix_xstat	3	/* 1158  xstat()	       V*/
-	sys	irix_lxstat	3	/* 1159  lxstat()	       V*/
-	sys	irix_fxstat	3	/* 1160  fxstat()	       V*/
-	sys	irix_xmknod	0	/* 1161  xmknod()	      ?V*/
-	sys	irix_sigaction	4	/* 1162  sigaction()	      ?V*/
-	sys	irix_sigpending	1	/* 1163  sigpending()	      ?V*/
-	sys	irix_sigprocmask 3	/* 1164  sigprocmask()	      ?V*/
-	sys	irix_sigsuspend	0	/* 1165  sigsuspend()	      ?V*/
-	sys	irix_sigpoll_sys 3	/* 1166  sigpoll_sys()	      IV*/
-	sys	irix_swapctl	2	/* 1167  swapctl()	      IV*/
-	sys	irix_getcontext	0	/* 1168  getcontext()	      HV*/
-	sys	irix_setcontext	0	/* 1169  setcontext()	      HV*/
-	sys	irix_waitsys	5	/* 1170  waitsys()	      IV*/
-	sys	irix_sigstack	2	/* 1171  sigstack()	      HV*/
-	sys	irix_sigaltstack 2	/* 1172  sigaltstack()	      HV*/
-	sys	irix_sigsendset	2	/* 1173  sigsendset()	      IV*/
-	sys	irix_statvfs	2	/* 1174  statvfs()	       V*/
-	sys	irix_fstatvfs	2	/* 1175  fstatvfs()	       V*/
-	sys	irix_unimp	0	/* 1176  XXX getpmsg()	      DC*/
-	sys	irix_unimp	0	/* 1177  XXX putpmsg()	      DC*/
-	sys	sys_lchown	3	/* 1178  lchown()	       V*/
-	sys	irix_priocntl	0	/* 1179  priocntl()	      DC*/
-	sys	irix_sigqueue	4	/* 1180  sigqueue()	      IV*/
-	sys	sys_readv	3	/* 1181  readv()	       V*/
-	sys	sys_writev	3	/* 1182  writev()	       V*/
-	sys	irix_truncate64 4	/* 1183  truncate64() XX32bit HV*/
-	sys	irix_ftruncate64 4	/* 1184  ftruncate64()XX32bit HV*/
-	sys	irix_mmap64	0	/* 1185  mmap64()     XX32bit HV*/
-	sys	irix_dmi	0	/* 1186  dmi()		      DC*/
-	sys	irix_pread	6	/* 1187  pread()	      IV*/
-	sys	irix_pwrite	6	/* 1188  pwrite()	      IV*/
-	sys	sys_fsync	1	/* 1189  fdatasync()  XXPOSIX HV*/
-	sys	irix_sgifastpath 7	/* 1190  sgifastpath() WHEEE  IV*/
-	sys	irix_unimp	0	/* 1191  XXX attr_get()	      DC*/
-	sys	irix_unimp	0	/* 1192  XXX attr_getf()      DC*/
-	sys	irix_unimp	0	/* 1193  XXX attr_set()	      DC*/
-	sys	irix_unimp	0	/* 1194  XXX attr_setf()      DC*/
-	sys	irix_unimp	0	/* 1195  XXX attr_remove()    DC*/
-	sys	irix_unimp	0	/* 1196  XXX attr_removef()   DC*/
-	sys	irix_unimp	0	/* 1197  XXX attr_list()      DC*/
-	sys	irix_unimp	0	/* 1198  XXX attr_listf()     DC*/
-	sys	irix_unimp	0	/* 1199  XXX attr_multi()     DC*/
-	sys	irix_unimp	0	/* 1200  XXX attr_multif()    DC*/
-	sys	irix_statvfs64	2	/* 1201  statvfs64()	       V*/
-	sys	irix_fstatvfs64	2	/* 1202  fstatvfs64()	       V*/
-	sys	irix_getmountid	2	/* 1203  getmountid()XXXfsids HV*/
-	sys	irix_nsproc	5	/* 1204  nsproc()	      IV*/
-	sys	irix_getdents64 3	/* 1205  getdents64()	      HV*/
-	sys	irix_unimp	0	/* 1206  XXX DFS garbage      DC*/
-	sys	irix_ngetdents	4	/* 1207  ngetdents() XXXeop   HV*/
-	sys	irix_ngetdents64 4	/* 1208  ngetdents64() XXXeop HV*/
-	sys	irix_unimp	0	/* 1209  nothin'	       V*/
-	sys	irix_unimp	0	/* 1210  XXX pidsprocsp()	*/
-	sys	irix_unimp	0	/* 1211  XXX rexec()		*/
-	sys	irix_unimp	0	/* 1212  XXX timer_create()	*/
-	sys	irix_unimp	0	/* 1213  XXX timer_delete()	*/
-	sys	irix_unimp	0	/* 1214  XXX timer_settime()	*/
-	sys	irix_unimp	0	/* 1215  XXX timer_gettime()	*/
-	sys	irix_unimp	0	/* 1216  XXX timer_setoverrun()	*/
-	sys	sys_sched_rr_get_interval 2		/* 1217  sched_rr_get_interval()V*/
-	sys	sys_sched_yield	0	/* 1218  sched_yield()	       V*/
-	sys	sys_sched_getscheduler 1 /* 1219  sched_getscheduler()  V*/
-	sys	sys_sched_setscheduler 3 /* 1220  sched_setscheduler()  V*/
-	sys	sys_sched_getparam 2	/* 1221  sched_getparam()      V*/
-	sys	sys_sched_setparam 2	/* 1222  sched_setparam()      V*/
-	sys	irix_unimp	0	/* 1223  XXX usync_cntl()	*/
-	sys	irix_unimp	0	/* 1224  XXX psema_cntl()	*/
-	sys	irix_unimp	0	/* 1225  XXX restartreturn()	*/
-
-	/* Just to pad things out nicely. */
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
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-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-	sys	irix_unimp	0
-
-	.endm
-
-	/*
-	 * Pre-compute the number of _instruction_ bytes needed to load
-	 * or store the arguments 6-8. Negative values are ignored.
-	 */
-	.macro  sys function, nargs
-	PTR	\function
-	LONG	(\nargs << 2) - (5 << 2)
-	.endm
-
-	.align	4
-EXPORT(sys_call_table_irix5)
-	irix5syscalltable

arch/mips/kernel/irixelf.c

···
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * irixelf.c: Code to load IRIX ELF executables conforming to the MIPS ABI.
- *            Based off of work by Eric Youngdale.
- *
- * Copyright (C) 1993 - 1994 Eric Youngdale <[e-mail]>
- * Copyright (C) 1996 - 2004 David S. Miller <[e-mail]>
- * Copyright (C) 2004 - 2005 Steven J. Hill <[e-mail]>
- */
-#undef DEBUG
-
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/a.out.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/signal.h>
-#include <linux/binfmts.h>
-#include <linux/string.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/shm.h>
-#include <linux/personality.h>
-#include <linux/elfcore.h>
-
-#include <asm/mipsregs.h>
-#include <asm/namei.h>
-#include <asm/prctl.h>
-#include <asm/uaccess.h>
-
-#define DLINFO_ITEMS 12
-
-#include <linux/elf.h>
-
-static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs);
-static int load_irix_library(struct file *);
-static int irix_core_dump(long signr, struct pt_regs * regs,
-                          struct file *file, unsigned long limit);
-
-static struct linux_binfmt irix_format = {
-	.module		= THIS_MODULE,
-	.load_binary	= load_irix_binary,
-	.load_shlib	= load_irix_library,
-	.core_dump	= irix_core_dump,
-	.min_coredump	= PAGE_SIZE,
-};
-
-/* Debugging routines. */
-static char *get_elf_p_type(Elf32_Word p_type)
-{
-#ifdef DEBUG
-	switch (p_type) {
-	case PT_NULL:
-		return "PT_NULL";
-		break;
-
-	case PT_LOAD:
-		return "PT_LOAD";
-		break;
-
-	case PT_DYNAMIC:
-		return "PT_DYNAMIC";
-		break;
-
-	case PT_INTERP:
-		return "PT_INTERP";
-		break;
-
-	case PT_NOTE:
-		return "PT_NOTE";
-		break;
-
-	case PT_SHLIB:
-		return "PT_SHLIB";
-		break;
-
-	case PT_PHDR:
-		return "PT_PHDR";
-		break;
-
-	case PT_LOPROC:
-		return "PT_LOPROC/REGINFO";
-		break;
-
-	case PT_HIPROC:
-		return "PT_HIPROC";
-		break;
-
-	default:
-		return "PT_BOGUS";
-		break;
-	}
-#endif
-}
-
-static void print_elfhdr(struct elfhdr *ehp)
-{
-	int i;
-
-	pr_debug("ELFHDR: e_ident<");
-	for (i = 0; i < (EI_NIDENT - 1); i++)
-		pr_debug("%x ", ehp->e_ident[i]);
-	pr_debug("%x>\n", ehp->e_ident[i]);
-	pr_debug("        e_type[%04x] e_machine[%04x] e_version[%08lx]\n",
-	         (unsigned short) ehp->e_type, (unsigned short) ehp->e_machine,
-	         (unsigned long) ehp->e_version);
-	pr_debug("        e_entry[%08lx] e_phoff[%08lx] e_shoff[%08lx] "
-	         "e_flags[%08lx]\n",
-	         (unsigned long) ehp->e_entry, (unsigned long) ehp->e_phoff,
-	         (unsigned long) ehp->e_shoff, (unsigned long) ehp->e_flags);
-	pr_debug("        e_ehsize[%04x] e_phentsize[%04x] e_phnum[%04x]\n",
-	         (unsigned short) ehp->e_ehsize,
-	         (unsigned short) ehp->e_phentsize,
-	         (unsigned short) ehp->e_phnum);
-	pr_debug("        e_shentsize[%04x] e_shnum[%04x] e_shstrndx[%04x]\n",
-	         (unsigned short) ehp->e_shentsize,
-	         (unsigned short) ehp->e_shnum,
-	         (unsigned short) ehp->e_shstrndx);
-}
-
-static void print_phdr(int i, struct elf_phdr *ep)
-{
-	pr_debug("PHDR[%d]: p_type[%s] p_offset[%08lx] p_vaddr[%08lx] "
-	         "p_paddr[%08lx]\n", i, get_elf_p_type(ep->p_type),
-	         (unsigned long) ep->p_offset, (unsigned long) ep->p_vaddr,
-	         (unsigned long) ep->p_paddr);
-	pr_debug("         p_filesz[%08lx] p_memsz[%08lx] p_flags[%08lx] "
-	         "p_align[%08lx]\n", (unsigned long) ep->p_filesz,
-	         (unsigned long) ep->p_memsz, (unsigned long) ep->p_flags,
-	         (unsigned long) ep->p_align);
-}
-
-static void dump_phdrs(struct elf_phdr *ep, int pnum)
-{
-	int i;
-
-	for (i = 0; i < pnum; i++, ep++) {
-		if ((ep->p_type == PT_LOAD) ||
-		    (ep->p_type == PT_INTERP) ||
-		    (ep->p_type == PT_PHDR))
-			print_phdr(i, ep);
-	}
-}
-
-static void set_brk(unsigned long start, unsigned long end)
-{
-	start = PAGE_ALIGN(start);
-	end = PAGE_ALIGN(end);
-	if (end <= start)
-		return;
-	down_write(&current->mm->mmap_sem);
-	do_brk(start, end - start);
-	up_write(&current->mm->mmap_sem);
-}
-
-
-/* We need to explicitly zero any fractional pages
- * after the data section (i.e. bss).  This would
- * contain the junk from the file that should not
- * be in memory.
- */
-static void padzero(unsigned long elf_bss)
-{
-	unsigned long nbyte;
-
-	nbyte = elf_bss & (PAGE_SIZE-1);
-	if (nbyte) {
-		nbyte = PAGE_SIZE - nbyte;
-		clear_user((void __user *) elf_bss, nbyte);
-	}
-}
-
-static unsigned long * create_irix_tables(char * p, int argc, int envc,
-	struct elfhdr * exec, unsigned int load_addr,
-	unsigned int interp_load_addr, struct pt_regs *regs,
-	struct elf_phdr *ephdr)
-{
-	elf_addr_t *argv;
-	elf_addr_t *envp;
-	elf_addr_t *sp, *csp;
-
-	pr_debug("create_irix_tables: p[%p] argc[%d] envc[%d] "
-	         "load_addr[%08x] interp_load_addr[%08x]\n",
-	         p, argc, envc, load_addr, interp_load_addr);
-
-	sp = (elf_addr_t *) (~15UL & (unsigned long) p);
-	csp = sp;
-	csp -= exec ? DLINFO_ITEMS*2 : 2;
-	csp -= envc+1;
-	csp -= argc+1;
-	csp -= 1;		/* argc itself */
-	if ((unsigned long)csp & 15UL) {
-		sp -= (16UL - ((unsigned long)csp & 15UL)) / sizeof(*sp);
-	}
-
-	/*
-	 * Put the ELF interpreter info on the stack
-	 */
-#define NEW_AUX_ENT(nr, id, val) \
-	  __put_user((id), sp+(nr*2)); \
-	  __put_user((val), sp+(nr*2+1)); \
-
-	sp -= 2;
-	NEW_AUX_ENT(0, AT_NULL, 0);
-
-	if (exec) {
-		sp -= 11*2;
-
-		NEW_AUX_ENT(0, AT_PHDR, load_addr + exec->e_phoff);
-		NEW_AUX_ENT(1, AT_PHENT, sizeof(struct elf_phdr));
-		NEW_AUX_ENT(2, AT_PHNUM, exec->e_phnum);
-		NEW_AUX_ENT(3, AT_PAGESZ, ELF_EXEC_PAGESIZE);
-		NEW_AUX_ENT(4, AT_BASE, interp_load_addr);
-		NEW_AUX_ENT(5, AT_FLAGS, 0);
-		NEW_AUX_ENT(6, AT_ENTRY, (elf_addr_t) exec->e_entry);
-		NEW_AUX_ENT(7, AT_UID, (elf_addr_t) current->uid);
-		NEW_AUX_ENT(8, AT_EUID, (elf_addr_t) current->euid);
-		NEW_AUX_ENT(9, AT_GID, (elf_addr_t) current->gid);
-		NEW_AUX_ENT(10, AT_EGID, (elf_addr_t) current->egid);
-	}
-#undef NEW_AUX_ENT
-
-	sp -= envc+1;
-	envp = sp;
-	sp -= argc+1;
-	argv = sp;
-
-	__put_user((elf_addr_t)argc, --sp);
-	current->mm->arg_start = (unsigned long) p;
-	while (argc-->0) {
-		__put_user((unsigned long)p, argv++);
-		p += strlen_user(p);
-	}
-	__put_user((unsigned long) NULL, argv);
-	current->mm->arg_end = current->mm->env_start = (unsigned long) p;
-	while (envc-->0) {
-		__put_user((unsigned long)p, envp++);
-		p += strlen_user(p);
-	}
-	__put_user((unsigned long) NULL, envp);
-	current->mm->env_end = (unsigned long) p;
-	return sp;
-}
-
-
-/* This is much more generalized than the library routine read function,
- * so we keep this separate.  Technically the library read function
- * is only provided so that we can read a.out libraries that have
- * an ELF header.
- */
-static unsigned int load_irix_interp(struct elfhdr * interp_elf_ex,
-				     struct file * interpreter,
-				     unsigned int *interp_load_addr)
-{
-	struct elf_phdr *elf_phdata  =  NULL;
-	struct elf_phdr *eppnt;
-	unsigned int len;
-	unsigned int load_addr;
-	int elf_bss;
-	int retval;
-	unsigned int last_bss;
-	int error;
-	int i;
-	unsigned int k;
-
-	elf_bss = 0;
-	last_bss = 0;
-	error = load_addr = 0;
-
-	print_elfhdr(interp_elf_ex);
-
-	/* First of all, some simple consistency checks */
-	if ((interp_elf_ex->e_type != ET_EXEC &&
-	     interp_elf_ex->e_type != ET_DYN) ||
-	     !interpreter->f_op->mmap) {
-		printk("IRIX interp has bad e_type %d\n", interp_elf_ex->e_type);
-		return 0xffffffff;
-	}
-
-	/* Now read in all of the header information */
-	if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > PAGE_SIZE) {
-	    printk("IRIX interp header bigger than a page (%d)\n",
-		   (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum));
-	    return 0xffffffff;
-	}
-
-	elf_phdata = kmalloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum,
-			     GFP_KERNEL);
-
-	if (!elf_phdata) {
-		printk("Cannot kmalloc phdata for IRIX interp.\n");
-		return 0xffffffff;
-	}
-
-	/* If the size of this structure has changed, then punt, since
-	 * we will be doing the wrong thing.
-	 */
-	if (interp_elf_ex->e_phentsize != 32) {
-		printk("IRIX interp e_phentsize == %d != 32 ",
-		       interp_elf_ex->e_phentsize);
-		kfree(elf_phdata);
-		return 0xffffffff;
-	}
-
-	retval = kernel_read(interpreter, interp_elf_ex->e_phoff,
-			   (char *) elf_phdata,
-			   sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
-
-	dump_phdrs(elf_phdata, interp_elf_ex->e_phnum);
-
-	eppnt = elf_phdata;
-	for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) {
-		if (eppnt->p_type == PT_LOAD) {
-			int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
-			int elf_prot = 0;
-			unsigned long vaddr = 0;
-			if (eppnt->p_flags & PF_R)
-				elf_prot =  PROT_READ;
-			if (eppnt->p_flags & PF_W)
-				elf_prot |= PROT_WRITE;
-			if (eppnt->p_flags & PF_X)
-				elf_prot |= PROT_EXEC;
-			elf_type |= MAP_FIXED;
-			vaddr = eppnt->p_vaddr;
-
-			pr_debug("INTERP do_mmap"
-			         "(%p, %08lx, %08lx, %08lx, %08lx, %08lx) ",
-			         interpreter, vaddr,
-			         (unsigned long)
-			         (eppnt->p_filesz + (eppnt->p_vaddr & 0xfff)),
-			         (unsigned long)
-			         elf_prot, (unsigned long) elf_type,
-			         (unsigned long)
-			         (eppnt->p_offset & 0xfffff000));
-
-			down_write(&current->mm->mmap_sem);
-			error = do_mmap(interpreter, vaddr,
-			eppnt->p_filesz + (eppnt->p_vaddr & 0xfff),
-			elf_prot, elf_type,
-			eppnt->p_offset & 0xfffff000);
-			up_write(&current->mm->mmap_sem);
-
-			if (error < 0 && error > -1024) {
-				printk("Aieee IRIX interp mmap error=%d\n",
-				       error);
-				break;  /* Real error */
-			}
-			pr_debug("error=%08lx ", (unsigned long) error);
-			if (!load_addr && interp_elf_ex->e_type == ET_DYN) {
-				load_addr = error;
-				pr_debug("load_addr = error ");
-			}
-
-			/*
-			 * Find the end of the file  mapping for this phdr, and
-			 * keep track of the largest address we see for this.
-			 */
-			k = eppnt->p_vaddr + eppnt->p_filesz;
-			if (k > elf_bss)
-				elf_bss = k;
-
-			/* Do the same thing for the memory mapping - between
-			 * elf_bss and last_bss is the bss section.
-			 */
-			k = eppnt->p_memsz + eppnt->p_vaddr;
-			if (k > last_bss)
-				last_bss = k;
-			pr_debug("\n");
-		}
-	}
-
-	/* Now use mmap to map the library into memory. */
-	if (error < 0 && error > -1024) {
-		pr_debug("got error %d\n", error);
-		kfree(elf_phdata);
-		return 0xffffffff;
-	}
-
-	/* Now fill out the bss section.  First pad the last page up
-	 * to the page boundary, and then perform a mmap to make sure
-	 * that there are zero-mapped pages up to and including the
-	 * last bss page.
-	 */
-	pr_debug("padzero(%08lx) ", (unsigned long) (elf_bss));
-	padzero(elf_bss);
-	len = (elf_bss + 0xfff) & 0xfffff000; /* What we have mapped so far */
-
-	pr_debug("last_bss[%08lx] len[%08lx]\n", (unsigned long) last_bss,
-	         (unsigned long) len);
-
-	/* Map the last of the bss segment */
-	if (last_bss > len) {
-		down_write(&current->mm->mmap_sem);
-		do_brk(len, (last_bss - len));
-		up_write(&current->mm->mmap_sem);
-	}
-	kfree(elf_phdata);
-
-	*interp_load_addr = load_addr;
-	return ((unsigned int) interp_elf_ex->e_entry);
-}
-
-/* Check sanity of IRIX elf executable header. */
-static int verify_binary(struct elfhdr *ehp, struct linux_binprm *bprm)
-{
-	if (memcmp(ehp->e_ident, ELFMAG, SELFMAG) != 0)
-		return -ENOEXEC;
-
-	/* First of all, some simple consistency checks */
-	if ((ehp->e_type != ET_EXEC && ehp->e_type != ET_DYN) ||
-	    !bprm->file->f_op->mmap) {
-		return -ENOEXEC;
-	}
-
-	/* XXX Don't support N32 or 64bit binaries yet because they can
-	 * XXX and do execute 64 bit instructions and expect all registers
-	 * XXX to be 64 bit as well.  We need to make the kernel save
-	 * XXX all registers as 64bits on cpu's capable of this at
-	 * XXX exception time plus frob the XTLB exception vector.
-	 */
-	if ((ehp->e_flags & EF_MIPS_ABI2))
-		return -ENOEXEC;
-
-	return 0;
-}
-
-/*
- * This is where the detailed check is performed. Irix binaries
- * use interpreters with 'libc.so' in the name, so this function
- * can differentiate between Linux and Irix binaries.
- */
-static inline int look_for_irix_interpreter(char **name,
-					    struct file **interpreter,
-					    struct elfhdr *interp_elf_ex,
-					    struct elf_phdr *epp,
-					    struct linux_binprm *bprm, int pnum)
-{
-	int i;
-	int retval = -EINVAL;
-	struct file *file = NULL;
-
-	*name = NULL;
-	for (i = 0; i < pnum; i++, epp++) {
-		if (epp->p_type != PT_INTERP)
-			continue;
-
-		/* It is illegal to have two interpreters for one executable. */
-		if (*name != NULL)
-			goto out;
-
-		*name = kmalloc(epp->p_filesz + strlen(IRIX_EMUL), GFP_KERNEL);
-		if (!*name)
-			return -ENOMEM;
-
-		strcpy(*name, IRIX_EMUL);
-		retval = kernel_read(bprm->file, epp->p_offset, (*name + 16),
-		                     epp->p_filesz);
-		if (retval < 0)
-			goto out;
-
-		file = open_exec(*name);
-		if (IS_ERR(file)) {
-			retval = PTR_ERR(file);
-			goto out;
-		}
-		retval = kernel_read(file, 0, bprm->buf, 128);
-		if (retval < 0)
-			goto dput_and_out;
-
-		*interp_elf_ex = *(struct elfhdr *) bprm->buf;
-	}
-	*interpreter = file;
-	return 0;
-
-dput_and_out:
-	fput(file);
-out:
-	kfree(*name);
-	return retval;
-}
-
-static inline int verify_irix_interpreter(struct elfhdr *ihp)
-{
-	if (memcmp(ihp->e_ident, ELFMAG, SELFMAG) != 0)
-		return -ELIBBAD;
-	return 0;
-}
-
-#define EXEC_MAP_FLAGS (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE)
-
-static inline void map_executable(struct file *fp, struct elf_phdr *epp, int pnum,
-				  unsigned int *estack, unsigned int *laddr,
-				  unsigned int *scode, unsigned int *ebss,
-				  unsigned int *ecode, unsigned int *edata,
-				  unsigned int *ebrk)
-{
-	unsigned int tmp;
-	int i, prot;
-
-	for (i = 0; i < pnum; i++, epp++) {
-		if (epp->p_type != PT_LOAD)
-			continue;
-
-		/* Map it. */
-		prot  = (epp->p_flags & PF_R) ? PROT_READ : 0;
-		prot |= (epp->p_flags & PF_W) ? PROT_WRITE : 0;
-		prot |= (epp->p_flags & PF_X) ? PROT_EXEC : 0;
-	        down_write(&current->mm->mmap_sem);
-		(void) do_mmap(fp, (epp->p_vaddr & 0xfffff000),
-			       (epp->p_filesz + (epp->p_vaddr & 0xfff)),
-			       prot, EXEC_MAP_FLAGS,
-			       (epp->p_offset & 0xfffff000));
-	        up_write(&current->mm->mmap_sem);
-
-		/* Fixup location tracking vars. */
-		if ((epp->p_vaddr & 0xfffff000) < *estack)
-			*estack = (epp->p_vaddr & 0xfffff000);
-		if (!*laddr)
-			*laddr = epp->p_vaddr - epp->p_offset;
-		if (epp->p_vaddr < *scode)
-			*scode = epp->p_vaddr;
-
-		tmp = epp->p_vaddr + epp->p_filesz;
-		if (tmp > *ebss)
-			*ebss = tmp;
-		if ((epp->p_flags & PF_X) && *ecode < tmp)
-			*ecode = tmp;
-		if (*edata < tmp)
-			*edata = tmp;
-
-		tmp = epp->p_vaddr + epp->p_memsz;
-		if (tmp > *ebrk)
-			*ebrk = tmp;
-	}
-
-}
-
-static inline int map_interpreter(struct elf_phdr *epp, struct elfhdr *ihp,
-				  struct file *interp, unsigned int *iladdr,
-				  int pnum, mm_segment_t old_fs,
-				  unsigned int *eentry)
-{
-	int i;
-
-	*eentry = 0xffffffff;
-	for (i = 0; i < pnum; i++, epp++) {
-		if (epp->p_type != PT_INTERP)
-			continue;
-
-		/* We should have fielded this error elsewhere... */
-		if (*eentry != 0xffffffff)
-			return -1;
-
-		set_fs(old_fs);
-		*eentry = load_irix_interp(ihp, interp, iladdr);
-		old_fs = get_fs();
-		set_fs(get_ds());
-
-		fput(interp);
-
-		if (*eentry == 0xffffffff)
-			return -1;
-	}
-	return 0;
-}
-
-/*
- * IRIX maps a page at 0x200000 that holds information about the
- * process and the system, here we map the page and fill the
- * structure
- */
-static int irix_map_prda_page(void)
-{
-	unsigned long v;
-	struct prda *pp;
-
-	down_write(&current->mm->mmap_sem);
-	v =  do_brk(PRDA_ADDRESS, PAGE_SIZE);
-	up_write(&current->mm->mmap_sem);
-
-	if (v != PRDA_ADDRESS)
-		return v;		/* v must be an error code */
-
-	pp = (struct prda *) v;
-	pp->prda_sys.t_pid  = task_pid_vnr(current);
-	pp->prda_sys.t_prid = read_c0_prid();
-	pp->prda_sys.t_rpid = task_pid_vnr(current);
-
-	/* We leave the rest set to zero */
-
-	return 0;
-}
-
-
-
-/* These are the functions used to load ELF style executables and shared
- * libraries.  There is no binary dependent code anywhere else.
- */
-static int load_irix_binary(struct linux_binprm * bprm, struct pt_regs * regs)
-{
-	struct elfhdr elf_ex, interp_elf_ex;
-	struct file *interpreter;
-	struct elf_phdr *elf_phdata, *elf_ihdr, *elf_ephdr;
-	unsigned int load_addr, elf_bss, elf_brk;
-	unsigned int elf_entry, interp_load_addr = 0;
-	unsigned int start_code, end_code, end_data, elf_stack;
-	int retval, has_interp, has_ephdr, size, i;
-	char *elf_interpreter;
-	mm_segment_t old_fs;
-
-	load_addr = 0;
-	has_interp = has_ephdr = 0;
-	elf_ihdr = elf_ephdr = NULL;
-	elf_ex = *((struct elfhdr *) bprm->buf);
-	retval = -ENOEXEC;
-
-	if (verify_binary(&elf_ex, bprm))
-		goto out;
-
-	/*
-	 * Telling -o32 static binaries from Linux and Irix apart from each
-	 * other is difficult. There are 2 differences to be noted for static
-	 * binaries from the 2 operating systems:
-	 *
-	 *    1) Irix binaries have their .text section before their .init
-	 *       section. Linux binaries are just the opposite.
-	 *
-	 *    2) Irix binaries usually have <= 12 sections and Linux
-	 *       binaries have > 20.
-	 *
-	 * We will use Method #2 since Method #1 would require us to read in
-	 * the section headers which is way too much overhead. This appears
-	 * to work for everything we have ran into so far. If anyone has a
-	 * better method to tell the binaries apart, I'm listening.
-	 */
-	if (elf_ex.e_shnum > 20)
-		goto out;
-
-	print_elfhdr(&elf_ex);
-
-	/* Now read in all of the header information */
-	size = elf_ex.e_phentsize * elf_ex.e_phnum;
-	if (size > 65536)
-		goto out;
-	elf_phdata = kmalloc(size, GFP_KERNEL);
-	if (elf_phdata == NULL) {
-		retval = -ENOMEM;
-		goto out;
-	}
-
-	retval = kernel_read(bprm->file, elf_ex.e_phoff, (char *)elf_phdata, size);
-	if (retval < 0)
-		goto out_free_ph;
-
-	dump_phdrs(elf_phdata, elf_ex.e_phnum);
-
-	/* Set some things for later. */
-	for (i = 0; i < elf_ex.e_phnum; i++) {
-		switch (elf_phdata[i].p_type) {
-		case PT_INTERP:
-			has_interp = 1;
-			elf_ihdr = &elf_phdata[i];
-			break;
-		case PT_PHDR:
-			has_ephdr = 1;
-			elf_ephdr = &elf_phdata[i];
-			break;
-		};
-	}
-
-	pr_debug("\n");
-
-	elf_bss = 0;
-	elf_brk = 0;
-
-	elf_stack = 0xffffffff;
-	elf_interpreter = NULL;
-	start_code = 0xffffffff;
-	end_code = 0;
-	end_data = 0;
-
-	/*
-	 * If we get a return value, we change the value to be ENOEXEC
-	 * so that we can exit gracefully and the main binary format
-	 * search loop in 'fs/exec.c' will move onto the next handler
-	 * which should be the normal ELF binary handler.
-	 */
-	retval = look_for_irix_interpreter(&elf_interpreter, &interpreter,
-					   &interp_elf_ex, elf_phdata, bprm,
-					   elf_ex.e_phnum);
-	if (retval) {
-		retval = -ENOEXEC;
-		goto out_free_file;
-	}
-
-	if (elf_interpreter) {
-		retval = verify_irix_interpreter(&interp_elf_ex);
-		if (retval)
-			goto out_free_interp;
-	}
-
-	/* OK, we are done with that, now set up the arg stuff,
-	 * and then start this sucker up.
-	 */
-	retval = -E2BIG;
-	if (!bprm->sh_bang && !bprm->p)
-		goto out_free_interp;
-
-	/* Flush all traces of the currently running executable */
-	retval = flush_old_exec(bprm);
-	if (retval)
-		goto out_free_dentry;
-
-	/* OK, This is the point of no return */
-	current->mm->end_data = 0;
-	current->mm->end_code = 0;
-	current->mm->mmap = NULL;
-	current->flags &= ~PF_FORKNOEXEC;
-	elf_entry = (unsigned int) elf_ex.e_entry;
-
-	/* Do this so that we can load the interpreter, if need be.  We will
-	 * change some of these later.
-	 */
-	setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
-	current->mm->start_stack = bprm->p;
-
-	/* At this point, we assume that the image should be loaded at
-	 * fixed address, not at a variable address.
-	 */
-	old_fs = get_fs();
-	set_fs(get_ds());
-
-	map_executable(bprm->file, elf_phdata, elf_ex.e_phnum, &elf_stack,
-	               &load_addr, &start_code, &elf_bss, &end_code,
-	               &end_data, &elf_brk);
-
-	if (elf_interpreter) {
-		retval = map_interpreter(elf_phdata, &interp_elf_ex,
-					 interpreter, &interp_load_addr,
-					 elf_ex.e_phnum, old_fs, &elf_entry);
-		kfree(elf_interpreter);
-		if (retval) {
-			set_fs(old_fs);
-			printk("Unable to load IRIX ELF interpreter\n");
-			send_sig(SIGSEGV, current, 0);
-			retval = 0;
-			goto out_free_file;
-		}
-	}
-
-	set_fs(old_fs);
-
-	kfree(elf_phdata);
-	set_personality(PER_IRIX32);
-	set_binfmt(&irix_format);
-	compute_creds(bprm);
-	current->flags &= ~PF_FORKNOEXEC;
-	bprm->p = (unsigned long)
-	  create_irix_tables((char *)bprm->p, bprm->argc, bprm->envc,
-			(elf_interpreter ? &elf_ex : NULL),
-			load_addr, interp_load_addr, regs, elf_ephdr);
-	current->mm->start_brk = current->mm->brk = elf_brk;
-	current->mm->end_code = end_code;
-	current->mm->start_code = start_code;
-	current->mm->end_data = end_data;
-	current->mm->start_stack = bprm->p;
-
-	/* Calling set_brk effectively mmaps the pages that we need for the
-	 * bss and break sections.
-	 */
-	set_brk(elf_bss, elf_brk);
-
-	/*
-	 * IRIX maps a page at 0x200000 which holds some system
-	 * information.  Programs depend on this.
-	 */
-	if (irix_map_prda_page())
-		goto out_free_dentry;
-
-	padzero(elf_bss);
-
-	pr_debug("(start_brk) %lx\n" , (long) current->mm->start_brk);
-	pr_debug("(end_code) %lx\n" , (long) current->mm->end_code);
-	pr_debug("(start_code) %lx\n" , (long) current->mm->start_code);
-	pr_debug("(end_data) %lx\n" , (long) current->mm->end_data);
-	pr_debug("(start_stack) %lx\n" , (long) current->mm->start_stack);
-	pr_debug("(brk) %lx\n" , (long) current->mm->brk);
-
-#if 0 /* XXX No fucking way dude... */
-	/* Why this, you ask???  Well SVr4 maps page 0 as read-only,
-	 * and some applications "depend" upon this behavior.
-	 * Since we do not have the power to recompile these, we
-	 * emulate the SVr4 behavior.  Sigh.
-	 */
-	down_write(&current->mm->mmap_sem);
-	(void) do_mmap(NULL, 0, 4096, PROT_READ | PROT_EXEC,
-		       MAP_FIXED | MAP_PRIVATE, 0);
-	up_write(&current->mm->mmap_sem);
-#endif
-
-	start_thread(regs, elf_entry, bprm->p);
-	if (current->ptrace & PT_PTRACED)
-		send_sig(SIGTRAP, current, 0);
-	return 0;
-out:
-	return retval;
-
-out_free_dentry:
-	allow_write_access(interpreter);
-	fput(interpreter);
-out_free_interp:
-	kfree(elf_interpreter);
-out_free_file:
-out_free_ph:
-	kfree(elf_phdata);
-	goto out;
-}
-
-/* This is really simpleminded and specialized - we are loading an
- * a.out library that is given an ELF header.
- */
-static int load_irix_library(struct file *file)
-{
-	struct elfhdr elf_ex;
-	struct elf_phdr *elf_phdata  =  NULL;
-	unsigned int len = 0;
-	int elf_bss = 0;
-	int retval;
-	unsigned int bss;
-	int error;
-	int i, j, k;
-
-	error = kernel_read(file, 0, (char *) &elf_ex, sizeof(elf_ex));
-	if (error != sizeof(elf_ex))
-		return -ENOEXEC;
-
-	if (memcmp(elf_ex.e_ident, ELFMAG, SELFMAG) != 0)
-		return -ENOEXEC;
-
-	/* First of all, some simple consistency checks. */
-	if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
-	   !file->f_op->mmap)
-		return -ENOEXEC;
-
-	/* Now read in all of the header information. */
-	if (sizeof(struct elf_phdr) * elf_ex.e_phnum > PAGE_SIZE)
-		return -ENOEXEC;
-
-	elf_phdata = kmalloc(sizeof(struct elf_phdr) * elf_ex.e_phnum, GFP_KERNEL);
-	if (elf_phdata == NULL)
-		return -ENOMEM;
-
-	retval = kernel_read(file, elf_ex.e_phoff, (char *) elf_phdata,
-			   sizeof(struct elf_phdr) * elf_ex.e_phnum);
-
-	j = 0;
-	for (i=0; i<elf_ex.e_phnum; i++)
-		if ((elf_phdata + i)->p_type == PT_LOAD) j++;
-
-	if (j != 1)  {
-		kfree(elf_phdata);
-		return -ENOEXEC;
-	}
-
-	while (elf_phdata->p_type != PT_LOAD) elf_phdata++;
-
-	/* Now use mmap to map the library into memory. */
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap(file,
-			elf_phdata->p_vaddr & 0xfffff000,
-			elf_phdata->p_filesz + (elf_phdata->p_vaddr & 0xfff),
-			PROT_READ | PROT_WRITE | PROT_EXEC,
-			MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE,
-			elf_phdata->p_offset & 0xfffff000);
-	up_write(&current->mm->mmap_sem);
-
-	k = elf_phdata->p_vaddr + elf_phdata->p_filesz;
-	if (k > elf_bss) elf_bss = k;
-
-	if (error != (elf_phdata->p_vaddr & 0xfffff000)) {
-		kfree(elf_phdata);
-		return error;
-	}
-
-	padzero(elf_bss);
-
-	len = (elf_phdata->p_filesz + elf_phdata->p_vaddr+ 0xfff) & 0xfffff000;
-	bss = elf_phdata->p_memsz + elf_phdata->p_vaddr;
-	if (bss > len) {
-	  down_write(&current->mm->mmap_sem);
-	  do_brk(len, bss-len);
-	  up_write(&current->mm->mmap_sem);
-	}
-	kfree(elf_phdata);
-	return 0;
-}
-
-/* Called through irix_syssgi() to map an elf image given an FD,
- * a phdr ptr USER_PHDRP in userspace, and a count CNT telling how many
- * phdrs there are in the USER_PHDRP array.  We return the vaddr the
- * first phdr was successfully mapped to.
- */
-unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt)
-{
-	unsigned long type, vaddr, filesz, offset, flags;
-	struct elf_phdr __user *hp;
-	struct file *filp;
-	int i, retval;
-
-	pr_debug("irix_mapelf: fd[%d] user_phdrp[%p] cnt[%d]\n",
-	         fd, user_phdrp, cnt);
-
-	/* First get the verification out of the way. */
-	hp = user_phdrp;
-	if (!access_ok(VERIFY_READ, hp, (sizeof(struct elf_phdr) * cnt))) {
-		pr_debug("irix_mapelf: bad pointer to ELF PHDR!\n");
-
-		return -EFAULT;
-	}
-
-	dump_phdrs(user_phdrp, cnt);
-
-	for (i = 0; i < cnt; i++, hp++) {
-		if (__get_user(type, &hp->p_type))
-			return -EFAULT;
-		if (type != PT_LOAD) {
-			printk("irix_mapelf: One section is not PT_LOAD!\n");
-			return -ENOEXEC;
-		}
-	}
-
-	filp = fget(fd);
-	if (!filp)
-		return -EACCES;
-	if (!filp->f_op) {
-		printk("irix_mapelf: Bogon filp!\n");
-		fput(filp);
-		return -EACCES;
-	}
-
-	hp = user_phdrp;
-	for (i = 0; i < cnt; i++, hp++) {
-		int prot;
-
-		retval = __get_user(vaddr, &hp->p_vaddr);
-		retval |= __get_user(filesz, &hp->p_filesz);
-		retval |= __get_user(offset, &hp->p_offset);
-		retval |= __get_user(flags, &hp->p_flags);
-		if (retval)
-			return retval;
-
-		prot  = (flags & PF_R) ? PROT_READ : 0;
-		prot |= (flags & PF_W) ? PROT_WRITE : 0;
-		prot |= (flags & PF_X) ? PROT_EXEC : 0;
-
-		down_write(&current->mm->mmap_sem);
-		retval = do_mmap(filp, (vaddr & 0xfffff000),
-				 (filesz + (vaddr & 0xfff)),
-				 prot, (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE),
-				 (offset & 0xfffff000));
-		up_write(&current->mm->mmap_sem);
-
-		if (retval != (vaddr & 0xfffff000)) {
-			printk("irix_mapelf: do_mmap fails with %d!\n", retval);
-			fput(filp);
-			return retval;
-		}
-	}
-
-	pr_debug("irix_mapelf: Success, returning %08lx\n",
-		 (unsigned long) user_phdrp->p_vaddr);
-
-	fput(filp);
-
-	if (__get_user(vaddr, &user_phdrp->p_vaddr))
-		return -EFAULT;
-
-	return vaddr;
-}
-
-/*
- * ELF core dumper
- *
- * Modelled on fs/exec.c:aout_core_dump()
- * Jeremy Fitzhardinge <[e-mail]>
- */
-
-/* These are the only things you should do on a core-file: use only these
- * functions to write out all the necessary info.
- */
-static int dump_write(struct file *file, const void __user *addr, int nr)
-{
-	return file->f_op->write(file, (const char __user *) addr, nr, &file->f_pos) == nr;
-}
-
-static int dump_seek(struct file *file, off_t off)
-{
-	if (file->f_op->llseek) {
-		if (file->f_op->llseek(file, off, 0) != off)
-			return 0;
-	} else
-		file->f_pos = off;
-	return 1;
-}
-
-/* Decide whether a segment is worth dumping; default is yes to be
- * sure (missing info is worse than too much; etc).
- * Personally I'd include everything, and use the coredump limit...
- *
- * I think we should skip something. But I am not sure how. H.J.
- */
-static inline int maydump(struct vm_area_struct *vma)
-{
-	if (!(vma->vm_flags & (VM_READ|VM_WRITE|VM_EXEC)))
-		return 0;
-#if 1
-	if (vma->vm_flags & (VM_WRITE|VM_GROWSUP|VM_GROWSDOWN))
-		return 1;
-	if (vma->vm_flags & (VM_READ|VM_EXEC|VM_EXECUTABLE|VM_SHARED))
-		return 0;
-#endif
-	return 1;
-}
-
-/* An ELF note in memory. */
-struct memelfnote
-{
-	const char *name;
-	int type;
-	unsigned int datasz;
-	void *data;
-};
-
-static int notesize(struct memelfnote *en)
-{
-	int sz;
-
-	sz = sizeof(struct elf_note);
-	sz += roundup(strlen(en->name) + 1, 4);
-	sz += roundup(en->datasz, 4);
-
-	return sz;
-}
-
-#define DUMP_WRITE(addr, nr)	\
-	if (!dump_write(file, (addr), (nr))) \
-		goto end_coredump;
-#define DUMP_SEEK(off)	\
-	if (!dump_seek(file, (off))) \
-		goto end_coredump;
-
-static int writenote(struct memelfnote *men, struct file *file)
-{
-	struct elf_note en;
-
-	en.n_namesz = strlen(men->name) + 1;
-	en.n_descsz = men->datasz;
-	en.n_type = men->type;
-
-	DUMP_WRITE(&en, sizeof(en));
-	DUMP_WRITE(men->name, en.n_namesz);
-	/* XXX - cast from long long to long to avoid need for libgcc.a */
-	DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));	/* XXX */
-	DUMP_WRITE(men->data, men->datasz);
-	DUMP_SEEK(roundup((unsigned long)file->f_pos, 4));	/* XXX */
-
-	return 1;
-
-end_coredump:
-	return 0;
-}
-#undef DUMP_WRITE
-#undef DUMP_SEEK
-
-#define DUMP_WRITE(addr, nr)	\
-	if (!dump_write(file, (addr), (nr))) \
-		goto end_coredump;
-#define DUMP_SEEK(off)	\
-	if (!dump_seek(file, (off))) \
-		goto end_coredump;
-
-/* Actual dumper.
- *
- * This is a two-pass process; first we find the offsets of the bits,
- * and then they are actually written out.  If we run out of core limit
- * we just truncate.
- */
-static int irix_core_dump(long signr, struct pt_regs *regs, struct file *file, unsigned long limit)
-{
-	int has_dumped = 0;
-	mm_segment_t fs;
-	int segs;
-	int i;
-	size_t size;
-	struct vm_area_struct *vma;
-	struct elfhdr elf;
-	off_t offset = 0, dataoff;
-	int numnote = 3;
-	struct memelfnote notes[3];
-	struct elf_prstatus prstatus;	/* NT_PRSTATUS */
-	elf_fpregset_t fpu;		/* NT_PRFPREG */
-	struct elf_prpsinfo psinfo;	/* NT_PRPSINFO */
-
-	/* Count what's needed to dump, up to the limit of coredump size. */
-	segs = 0;
-	size = 0;
-	for (vma = current->mm->mmap; vma != NULL; vma = vma->vm_next) {
-		if (maydump(vma))
-		{
-			int sz = vma->vm_end-vma->vm_start;
-
-			if (size+sz >= limit)
-				break;
-			else
-				size += sz;
-		}
-
-		segs++;
-	}
-	pr_debug("irix_core_dump: %d segs taking %d bytes\n", segs, size);
-
-	/* Set up header. */
-	memcpy(elf.e_ident, ELFMAG, SELFMAG);
-	elf.e_ident[EI_CLASS] = ELFCLASS32;
-	elf.e_ident[EI_DATA] = ELFDATA2LSB;
-	elf.e_ident[EI_VERSION] = EV_CURRENT;
-	elf.e_ident[EI_OSABI] = ELF_OSABI;
-	memset(elf.e_ident+EI_PAD, 0, EI_NIDENT-EI_PAD);
-
-	elf.e_type = ET_CORE;
-	elf.e_machine = ELF_ARCH;
-	elf.e_version = EV_CURRENT;
-	elf.e_entry = 0;
-	elf.e_phoff = sizeof(elf);
-	elf.e_shoff = 0;
-	elf.e_flags = 0;
-	elf.e_ehsize = sizeof(elf);
-	elf.e_phentsize = sizeof(struct elf_phdr);
-	elf.e_phnum = segs+1;		/* Include notes. */
-	elf.e_shentsize = 0;
-	elf.e_shnum = 0;
-	elf.e_shstrndx = 0;
-
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-
-	has_dumped = 1;
-	current->flags |= PF_DUMPCORE;
-
-	DUMP_WRITE(&elf, sizeof(elf));
-	offset += sizeof(elf);				/* Elf header. */
-	offset += (segs+1) * sizeof(struct elf_phdr);	/* Program headers. */
-
-	/* Set up the notes in similar form to SVR4 core dumps made
-	 * with info from their /proc.
-	 */
-	memset(&psinfo, 0, sizeof(psinfo));
-	memset(&prstatus, 0, sizeof(prstatus));
-
-	notes[0].name = "CORE";
-	notes[0].type = NT_PRSTATUS;
-	notes[0].datasz = sizeof(prstatus);
-	notes[0].data = &prstatus;
-	prstatus.pr_info.si_signo = prstatus.pr_cursig = signr;
-	prstatus.pr_sigpend = current->pending.signal.sig[0];
-	prstatus.pr_sighold = current->blocked.sig[0];
-	psinfo.pr_pid = prstatus.pr_pid = task_pid_vnr(current);
-	psinfo.pr_ppid = prstatus.pr_ppid = task_pid_vnr(current->parent);
-	psinfo.pr_pgrp = prstatus.pr_pgrp = task_pgrp_vnr(current);
-	psinfo.pr_sid = prstatus.pr_sid = task_session_vnr(current);
-	if (thread_group_leader(current)) {
-		/*
-		 * This is the record for the group leader.  Add in the
-		 * cumulative times of previous dead threads.  This total
-		 * won't include the time of each live thread whose state
-		 * is included in the core dump.  The final total reported
-		 * to our parent process when it calls wait4 will include
-		 * those sums as well as the little bit more time it takes
-		 * this and each other thread to finish dying after the
-		 * core dump synchronization phase.
-		 */
-		jiffies_to_timeval(current->utime + current->signal->utime,
-		                   &prstatus.pr_utime);
-		jiffies_to_timeval(current->stime + current->signal->stime,
-		                   &prstatus.pr_stime);
-	} else {
-		jiffies_to_timeval(current->utime, &prstatus.pr_utime);
-		jiffies_to_timeval(current->stime, &prstatus.pr_stime);
-	}
-	jiffies_to_timeval(current->signal->cutime, &prstatus.pr_cutime);
-	jiffies_to_timeval(current->signal->cstime, &prstatus.pr_cstime);
-
-	if (sizeof(elf_gregset_t) != sizeof(struct pt_regs)) {
-		printk("sizeof(elf_gregset_t) (%d) != sizeof(struct pt_regs) "
-		       "(%d)\n", sizeof(elf_gregset_t), sizeof(struct pt_regs));
-	} else {
-		*(struct pt_regs *)&prstatus.pr_reg = *regs;
-	}
-
-	notes[1].name = "CORE";
-	notes[1].type = NT_PRPSINFO;
-	notes[1].datasz = sizeof(psinfo);
-	notes[1].data = &psinfo;
-	i = current->state ? ffz(~current->state) + 1 : 0;
-	psinfo.pr_state = i;
-	psinfo.pr_sname = (i < 0 || i > 5) ? '.' : "RSDZTD"[i];
-	psinfo.pr_zomb = psinfo.pr_sname == 'Z';
-	psinfo.pr_nice = task_nice(current);
-	psinfo.pr_flag = current->flags;
-	psinfo.pr_uid = current->uid;
-	psinfo.pr_gid = current->gid;
-	{
-		int i, len;
-
-		set_fs(fs);
-
-		len = current->mm->arg_end - current->mm->arg_start;
-		len = len >= ELF_PRARGSZ ? ELF_PRARGSZ : len;
-		(void *) copy_from_user(&psinfo.pr_psargs,
-			       (const char __user *)current->mm->arg_start, len);
-		for (i = 0; i < len; i++)
-			if (psinfo.pr_psargs[i] == 0)
-				psinfo.pr_psargs[i] = ' ';
-		psinfo.pr_psargs[len] = 0;
-
-		set_fs(KERNEL_DS);
-	}
-	strlcpy(psinfo.pr_fname, current->comm, sizeof(psinfo.pr_fname));
-
-	/* Try to dump the FPU. */
-	prstatus.pr_fpvalid = dump_fpu(regs, &fpu);
-	if (!prstatus.pr_fpvalid) {
-		numnote--;
-	} else {
-		notes[2].name = "CORE";
-		notes[2].type = NT_PRFPREG;
-		notes[2].datasz = sizeof(fpu);
-		notes[2].data = &fpu;
-	}
-
-	/* Write notes phdr entry. */
-	{
-		struct elf_phdr phdr;
-		int sz = 0;
-
-		for (i = 0; i < numnote; i++)
-			sz += notesize(&notes[i]);
-
-		phdr.p_type = PT_NOTE;
-		phdr.p_offset = offset;
-		phdr.p_vaddr = 0;
-		phdr.p_paddr = 0;
-		phdr.p_filesz = sz;
-		phdr.p_memsz = 0;
-		phdr.p_flags = 0;
-		phdr.p_align = 0;
-
-		offset += phdr.p_filesz;
-		DUMP_WRITE(&phdr, sizeof(phdr));
-	}
-
-	/* Page-align dumped data. */
-	dataoff = offset = roundup(offset, PAGE_SIZE);
-
-	/* Write program headers for segments dump. */
-	for (vma = current->mm->mmap, i = 0;
-		i < segs && vma != NULL; vma = vma->vm_next) {
-		struct elf_phdr phdr;
-		size_t sz;
-
-		i++;
-
-		sz = vma->vm_end - vma->vm_start;
-
-		phdr.p_type = PT_LOAD;
-		phdr.p_offset = offset;
-		phdr.p_vaddr = vma->vm_start;
-		phdr.p_paddr = 0;
-		phdr.p_filesz = maydump(vma) ? sz : 0;
-		phdr.p_memsz = sz;
-		offset += phdr.p_filesz;
-		phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0;
-		if (vma->vm_flags & VM_WRITE)
-			phdr.p_flags |= PF_W;
-		if (vma->vm_flags & VM_EXEC)
-			phdr.p_flags |= PF_X;
-		phdr.p_align = PAGE_SIZE;
-
-		DUMP_WRITE(&phdr, sizeof(phdr));
-	}
-
-	for (i = 0; i < numnote; i++)
-		if (!writenote(&notes[i], file))
-			goto end_coredump;
-
-	set_fs(fs);
-
-	DUMP_SEEK(dataoff);
-
-	for (i = 0, vma = current->mm->mmap;
-	    i < segs && vma != NULL;
-	    vma = vma->vm_next) {
-		unsigned long addr = vma->vm_start;
-		unsigned long len = vma->vm_end - vma->vm_start;
-
-		if (!maydump(vma))
-			continue;
-		i++;
-		pr_debug("elf_core_dump: writing %08lx %lx\n", addr, len);
-		DUMP_WRITE((void __user *)addr, len);
-	}
-
-	if ((off_t) file->f_pos != offset) {
-		/* Sanity check. */
-		printk("elf_core_dump: file->f_pos (%ld) != offset (%ld)\n",
-		       (off_t) file->f_pos, offset);
-	}
-
-end_coredump:
-	set_fs(fs);
-	return has_dumped;
-}
-
-static int __init init_irix_binfmt(void)
-{
-	extern int init_inventory(void);
-	extern asmlinkage unsigned long sys_call_table;
-	extern asmlinkage unsigned long sys_call_table_irix5;
-
-	init_inventory();
-
-	/*
-	 * Copy the IRIX5 syscall table (8000 bytes) into the main syscall
-	 * table. The IRIX5 calls are located by an offset of 8000 bytes
-	 * from the beginning of the main table.
-	 */
-	memcpy((void *) ((unsigned long) &sys_call_table + 8000),
-		&sys_call_table_irix5, 8000);
-
-	return register_binfmt(&irix_format);
-}
-
-static void __exit exit_irix_binfmt(void)
-{
-	/*
-	 * Remove the Irix ELF loader.
-	 */
-	unregister_binfmt(&irix_format);
-}
-
-module_init(init_irix_binfmt)
-module_exit(exit_irix_binfmt)

arch/mips/kernel/irixinv.c

···
-/*
- * Support the inventory interface for IRIX binaries
- * This is invoked before the mm layer is working, so we do not
- * use the linked lists for the inventory yet.
- *
- * Miguel de Icaza, 1997.
- */
-#include <linux/mm.h>
-#include <asm/inventory.h>
-#include <asm/uaccess.h>
-
-#define MAX_INVENTORY 50
-int inventory_items = 0;
-
-static inventory_t inventory [MAX_INVENTORY];
-
-void add_to_inventory(int class, int type, int controller, int unit, int state)
-{
-	inventory_t *ni = &inventory [inventory_items];
-
-	if (inventory_items == MAX_INVENTORY)
-		return;
-
-	ni->inv_class      = class;
-	ni->inv_type       = type;
-	ni->inv_controller = controller;
-	ni->inv_unit       = unit;
-	ni->inv_state      = state;
-	ni->inv_next       = ni;
-	inventory_items++;
-}
-
-int dump_inventory_to_user(void __user *userbuf, int size)
-{
-	inventory_t *inv  = &inventory [0];
-	inventory_t __user *user = userbuf;
-	int v;
-
-	if (!access_ok(VERIFY_WRITE, userbuf, size))
-		return -EFAULT;
-
-	for (v = 0; v < inventory_items; v++){
-		inv = &inventory [v];
-		if (copy_to_user (user, inv, sizeof (inventory_t)))
-			return -EFAULT;
-		user++;
-	}
-	return inventory_items * sizeof(inventory_t);
-}
-
-int __init init_inventory(void)
-{
-	/*
-	 * gross hack while we put the right bits all over the kernel
-	 * most likely this will not let just anyone run the X server
-	 * until we put the right values all over the place
-	 */
-	add_to_inventory(10, 3, 0, 0, 16400);
-	add_to_inventory(1, 1, 150, -1, 12);
-	add_to_inventory(1, 3, 0, 0, 8976);
-	add_to_inventory(1, 2, 0, 0, 8976);
-	add_to_inventory(4, 8, 0, 0, 2);
-	add_to_inventory(5, 5, 0, 0, 1);
-	add_to_inventory(3, 3, 0, 0, 32768);
-	add_to_inventory(3, 4, 0, 0, 32768);
-	add_to_inventory(3, 8, 0, 0, 524288);
-	add_to_inventory(3, 9, 0, 0, 64);
-	add_to_inventory(3, 1, 0, 0, 67108864);
-	add_to_inventory(12, 3, 0, 0, 16);
-	add_to_inventory(8, 7, 17, 0, 16777472);
-	add_to_inventory(8, 0, 0, 0, 1);
-	add_to_inventory(2, 1, 0, 13, 2);
-	add_to_inventory(2, 2, 0, 2, 0);
-	add_to_inventory(2, 2, 0, 1, 0);
-	add_to_inventory(7, 14, 0, 0, 6);
-
-	return 0;
-}

arch/mips/kernel/irixioctl.c

···
-/*
- * irixioctl.c: A fucking mess...
- *
- * Copyright (C) 1996 David S. Miller ([e-mail])
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/sockios.h>
-#include <linux/syscalls.h>
-#include <linux/tty.h>
-#include <linux/file.h>
-#include <linux/rcupdate.h>
-
-#include <asm/uaccess.h>
-#include <asm/ioctl.h>
-#include <asm/ioctls.h>
-
-#undef DEBUG_IOCTLS
-#undef DEBUG_MISSING_IOCTL
-
-struct irix_termios {
-	tcflag_t c_iflag, c_oflag, c_cflag, c_lflag;
-	cc_t c_cc[NCCS];
-};
-
-asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
-{
-	struct tty_struct *tp, *rtp;
-	mm_segment_t old_fs;
-	int i, error = 0;
-
-#ifdef DEBUG_IOCTLS
-	printk("[%s:%d] irix_ioctl(%d, ", current->comm, current->pid, fd);
-#endif
-	switch(cmd) {
-	case 0x00005401:
-#ifdef DEBUG_IOCTLS
-		printk("TCGETA, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCGETA, arg);
-		break;
-
-	case 0x0000540d: {
-		struct termios kt;
-		struct irix_termios __user *it =
-			(struct irix_termios __user *) arg;
-
-#ifdef DEBUG_IOCTLS
-		printk("TCGETS, %08lx) ", arg);
-#endif
-		if (!access_ok(VERIFY_WRITE, it, sizeof(*it))) {
-			error = -EFAULT;
-			break;
-		}
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		if (error)
-			break;
-
-		error = __put_user(kt.c_iflag, &it->c_iflag);
-		error |= __put_user(kt.c_oflag, &it->c_oflag);
-		error |= __put_user(kt.c_cflag, &it->c_cflag);
-		error |= __put_user(kt.c_lflag, &it->c_lflag);
-
-		for (i = 0; i < NCCS; i++)
-			error |= __put_user(kt.c_cc[i], &it->c_cc[i]);
-		break;
-	}
-
-	case 0x0000540e: {
-		struct termios kt;
-		struct irix_termios *it = (struct irix_termios *) arg;
-
-#ifdef DEBUG_IOCTLS
-		printk("TCSETS, %08lx) ", arg);
-#endif
-		if (!access_ok(VERIFY_READ, it, sizeof(*it))) {
-			error = -EFAULT;
-			break;
-		}
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		if (error)
-			break;
-
-		error = __get_user(kt.c_iflag, &it->c_iflag);
-		error |= __get_user(kt.c_oflag, &it->c_oflag);
-		error |= __get_user(kt.c_cflag, &it->c_cflag);
-		error |= __get_user(kt.c_lflag, &it->c_lflag);
-
-		for (i = 0; i < NCCS; i++)
-			error |= __get_user(kt.c_cc[i], &it->c_cc[i]);
-
-		if (error)
-			break;
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TCSETS, (unsigned long) &kt);
-		set_fs(old_fs);
-		break;
-	}
-
-	case 0x0000540f:
-#ifdef DEBUG_IOCTLS
-		printk("TCSETSW, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCSETSW, arg);
-		break;
-
-	case 0x00005471:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCNOTTY, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCNOTTY, arg);
-		break;
-
-	case 0x00007416: {
-		pid_t pid;
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGSID, %08lx) ", arg);
-#endif
-		old_fs = get_fs(); set_fs(get_ds());
-		error = sys_ioctl(fd, TIOCGSID, (unsigned long)&pid);
-		set_fs(old_fs);
-		if (!error)
-			error = put_user(pid, (unsigned long __user *) arg);
-		break;
-	}
-	case 0x746e:
-		/* TIOCSTART, same effect as hitting ^Q */
-#ifdef DEBUG_IOCTLS
-		printk("TIOCSTART, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TCXONC, TCOON);
-		break;
-
-	case 0x20006968:
-#ifdef DEBUG_IOCTLS
-		printk("SIOCGETLABEL, %08lx) ", arg);
-#endif
-		error = -ENOPKG;
-		break;
-
-	case 0x40047477:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGPGRP, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCGPGRP, arg);
-#ifdef DEBUG_IOCTLS
-		printk("arg=%d ", *(int *)arg);
-#endif
-		break;
-
-	case 0x40087468:
-#ifdef DEBUG_IOCTLS
-		printk("TIOCGWINSZ, %08lx) ", arg);
-#endif
-		error = sys_ioctl(fd, TIOCGWINSZ, arg);
-		break;
-
-	case 0x8004667e:
-		error = sys_ioctl(fd, FIONBIO, arg);
-		break;
-
-	case 0x80047476:
-		error = sys_ioctl(fd, TIOCSPGRP, arg);
-		break;
-
-	case 0x8020690c:
-		error = sys_ioctl(fd, SIOCSIFADDR, arg);
-		break;
-
-	case 0x80206910:
-		error = sys_ioctl(fd, SIOCSIFFLAGS, arg);
-		break;
-
-	case 0xc0206911:
-		error = sys_ioctl(fd, SIOCGIFFLAGS, arg);
-		break;
-
-	case 0xc020691b:
-		error = sys_ioctl(fd, SIOCGIFMETRIC, arg);
-		break;
-
-	default: {
-#ifdef DEBUG_MISSING_IOCTL
-		char *msg = "Unimplemented IOCTL cmd tell [e-mail]\n";
-
-#ifdef DEBUG_IOCTLS
-		printk("UNIMP_IOCTL, %08lx)\n", arg);
-#endif
-		old_fs = get_fs(); set_fs(get_ds());
-		sys_write(2, msg, strlen(msg));
-		set_fs(old_fs);
-		printk("[%s:%d] Does unimplemented IRIX ioctl cmd %08lx\n",
-		       current->comm, current->pid, cmd);
-		do_exit(255);
-#else
-		error = sys_ioctl(fd, cmd, arg);
-#endif
-	}
-
-	};
-#ifdef DEBUG_IOCTLS
-	printk("error=%d\n", error);
-#endif
-	return error;
-}

arch/mips/kernel/irixsig.c

···
-/*
- * irixsig.c: WHEEE, IRIX signals!  YOW, am I compatible or what?!?!
- *
- * Copyright (C) 1996 David S. Miller ([e-mail])
- * Copyright (C) 1997 - 2000 Ralf Baechle ([e-mail])
- * Copyright (C) 2000 Silicon Graphics, Inc.
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/smp.h>
-#include <linux/time.h>
-#include <linux/ptrace.h>
-#include <linux/resource.h>
-
-#include <asm/ptrace.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-#undef DEBUG_SIG
-
-#define _S(nr) (1<<((nr)-1))
-
-#define _BLOCKABLE (~(_S(SIGKILL) | _S(SIGSTOP)))
-
-#define _IRIX_NSIG		128
-#define _IRIX_NSIG_BPW		BITS_PER_LONG
-#define _IRIX_NSIG_WORDS	(_IRIX_NSIG / _IRIX_NSIG_BPW)
-
-typedef struct {
-	unsigned long sig[_IRIX_NSIG_WORDS];
-} irix_sigset_t;
-
-struct sigctx_irix5 {
-	u32 rmask, cp0_status;
-	u64 pc;
-	u64 regs[32];
-	u64 fpregs[32];
-	u32 usedfp, fpcsr, fpeir, sstk_flags;
-	u64 hi, lo;
-	u64 cp0_cause, cp0_badvaddr, _unused0;
-	irix_sigset_t sigset;
-	u64 weird_fpu_thing;
-	u64 _unused1[31];
-};
-
-#ifdef DEBUG_SIG
-/* Debugging */
-static inline void dump_irix5_sigctx(struct sigctx_irix5 *c)
-{
-	int i;
-
-	printk("misc: rmask[%08lx] status[%08lx] pc[%08lx]\n",
-	       (unsigned long) c->rmask,
-	       (unsigned long) c->cp0_status,
-	       (unsigned long) c->pc);
-	printk("regs: ");
-	for(i = 0; i < 16; i++)
-		printk("[%d]<%08lx> ", i, (unsigned long) c->regs[i]);
-	printk("\nregs: ");
-	for(i = 16; i < 32; i++)
-		printk("[%d]<%08lx> ", i, (unsigned long) c->regs[i]);
-	printk("\nfpregs: ");
-	for(i = 0; i < 16; i++)
-		printk("[%d]<%08lx> ", i, (unsigned long) c->fpregs[i]);
-	printk("\nfpregs: ");
-	for(i = 16; i < 32; i++)
-		printk("[%d]<%08lx> ", i, (unsigned long) c->fpregs[i]);
-	printk("misc: usedfp[%d] fpcsr[%08lx] fpeir[%08lx] stk_flgs[%08lx]\n",
-	       (int) c->usedfp, (unsigned long) c->fpcsr,
-	       (unsigned long) c->fpeir, (unsigned long) c->sstk_flags);
-	printk("misc: hi[%08lx] lo[%08lx] cause[%08lx] badvaddr[%08lx]\n",
-	       (unsigned long) c->hi, (unsigned long) c->lo,
-	       (unsigned long) c->cp0_cause, (unsigned long) c->cp0_badvaddr);
-	printk("misc: sigset<0>[%08lx] sigset<1>[%08lx] sigset<2>[%08lx] "
-	       "sigset<3>[%08lx]\n", (unsigned long) c->sigset.sig[0],
-	       (unsigned long) c->sigset.sig[1],
-	       (unsigned long) c->sigset.sig[2],
-	       (unsigned long) c->sigset.sig[3]);
-}
-#endif
-
-static int setup_irix_frame(struct k_sigaction *ka, struct pt_regs *regs,
-			    int signr, sigset_t *oldmask)
-{
-	struct sigctx_irix5 __user *ctx;
-	unsigned long sp;
-	int error, i;
-
-	sp = regs->regs[29];
-	sp -= sizeof(struct sigctx_irix5);
-	sp &= ~(0xf);
-	ctx = (struct sigctx_irix5 __user *) sp;
-	if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
-		goto segv_and_exit;
-
-	error = __put_user(0, &ctx->weird_fpu_thing);
-	error |= __put_user(~(0x00000001), &ctx->rmask);
-	error |= __put_user(0, &ctx->regs[0]);
-	for(i = 1; i < 32; i++)
-		error |= __put_user((u64) regs->regs[i], &ctx->regs[i]);
-
-	error |= __put_user((u64) regs->hi, &ctx->hi);
-	error |= __put_user((u64) regs->lo, &ctx->lo);
-	error |= __put_user((u64) regs->cp0_epc, &ctx->pc);
-	error |= __put_user(!!used_math(), &ctx->usedfp);
-	error |= __put_user((u64) regs->cp0_cause, &ctx->cp0_cause);
-	error |= __put_user((u64) regs->cp0_badvaddr, &ctx->cp0_badvaddr);
-
-	error |= __put_user(0, &ctx->sstk_flags); /* XXX sigstack unimp... todo... */
-
-	error |= __copy_to_user(&ctx->sigset, oldmask, sizeof(irix_sigset_t)) ? -EFAULT : 0;
-
-	if (error)
-		goto segv_and_exit;
-
-#ifdef DEBUG_SIG
-	dump_irix5_sigctx(ctx);
-#endif
-
-	regs->regs[4] = (unsigned long) signr;
-	regs->regs[5] = 0; /* XXX sigcode XXX */
-	regs->regs[6] = regs->regs[29] = sp;
-	regs->regs[7] = (unsigned long) ka->sa.sa_handler;
-	regs->regs[25] = regs->cp0_epc = (unsigned long) ka->sa_restorer;
-
-	return 1;
-
-segv_and_exit:
-	force_sigsegv(signr, current);
-	return 0;
-}
-
-static int inline
-setup_irix_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
-               int signr, sigset_t *oldmask, siginfo_t *info)
-{
-	printk("Aiee: setup_tr_frame wants to be written");
-	do_exit(SIGSEGV);
-}
-
-static inline int handle_signal(unsigned long sig, siginfo_t *info,
-	struct k_sigaction *ka, sigset_t *oldset, struct pt_regs * regs)
-{
-	int ret;
-
-	switch(regs->regs[0]) {
-	case ERESTARTNOHAND:
-		regs->regs[2] = EINTR;
-		break;
-	case ERESTARTSYS:
-		if(!(ka->sa.sa_flags & SA_RESTART)) {
-			regs->regs[2] = EINTR;
-			break;
-		}
-	/* fallthrough */
-	case ERESTARTNOINTR:		/* Userland will reload $v0.  */
-		regs->cp0_epc -= 8;
-	}
-
-	regs->regs[0] = 0;		/* Don't deal with this again.  */
-
-	if (ka->sa.sa_flags & SA_SIGINFO)
-		ret = setup_irix_rt_frame(ka, regs, sig, oldset, info);
-	else
-		ret = setup_irix_frame(ka, regs, sig, oldset);
-
-	spin_lock_irq(&current->sighand->siglock);
-	sigorsets(&current->blocked, &current->blocked, &ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&current->blocked, sig);
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	return ret;
-}
-
-void do_irix_signal(struct pt_regs *regs)
-{
-	struct k_sigaction ka;
-	siginfo_t info;
-	int signr;
-	sigset_t *oldset;
-
-	/*
-	 * We want the common case to go fast, which is why we may in certain
-	 * cases get here from kernel mode. Just return without doing anything
-	 * if so.
-	 */
-	if (!user_mode(regs))
-		return;
-
-	if (test_thread_flag(TIF_RESTORE_SIGMASK))
-		oldset = &current->saved_sigmask;
-	else
-		oldset = &current->blocked;
-
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0) {
-		/* Whee!  Actually deliver the signal.  */
-		if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
-			/* a signal was successfully delivered; the saved
-			 * sigmask will have been stored in the signal frame,
-			 * and will be restored by sigreturn, so we can simply
-			 * clear the TIF_RESTORE_SIGMASK flag */
-			if (test_thread_flag(TIF_RESTORE_SIGMASK))
-				clear_thread_flag(TIF_RESTORE_SIGMASK);
-		}
-
-		return;
-	}
-
-	/*
-	 * Who's code doesn't conform to the restartable syscall convention
-	 * dies here!!!  The li instruction, a single machine instruction,
-	 * must directly be followed by the syscall instruction.
-	 */
-	if (regs->regs[0]) {
-		if (regs->regs[2] == ERESTARTNOHAND ||
-		    regs->regs[2] == ERESTARTSYS ||
-		    regs->regs[2] == ERESTARTNOINTR) {
-			regs->cp0_epc -= 8;
-		}
-		if (regs->regs[2] == ERESTART_RESTARTBLOCK) {
-			regs->regs[2] = __NR_restart_syscall;
-			regs->regs[7] = regs->regs[26];
-			regs->cp0_epc -= 4;
-		}
-		regs->regs[0] = 0;	/* Don't deal with this again.  */
-	}
-
-	/*
-	* If there's no signal to deliver, we just put the saved sigmask
-	* back
-	*/
-	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-		clear_thread_flag(TIF_RESTORE_SIGMASK);
-		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-	}
-}
-
-asmlinkage void
-irix_sigreturn(struct pt_regs *regs)
-{
-	struct sigctx_irix5 __user *context, *magic;
-	unsigned long umask, mask;
-	u64 *fregs;
-	u32 usedfp;
-	int error, sig, i, base = 0;
-	sigset_t blocked;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-
-	context = (struct sigctx_irix5 __user *) regs->regs[base + 4];
-	magic = (struct sigctx_irix5 __user *) regs->regs[base + 5];
-	sig = (int) regs->regs[base + 6];
-#ifdef DEBUG_SIG
-	printk("[%s:%d] IRIX sigreturn(scp[%p],ucp[%p],sig[%d])\n",
-	       current->comm, current->pid, context, magic, sig);
-#endif
-	if (!context)
-		context = magic;
-	if (!access_ok(VERIFY_READ, context, sizeof(struct sigctx_irix5)))
-		goto badframe;
-
-#ifdef DEBUG_SIG
-	dump_irix5_sigctx(context);
-#endif
-
-	error = __get_user(regs->cp0_epc, &context->pc);
-	error |= __get_user(umask, &context->rmask);
-
-	mask = 2;
-	for (i = 1; i < 32; i++, mask <<= 1) {
-		if (umask & mask)
-			error |= __get_user(regs->regs[i], &context->regs[i]);
-	}
-	error |= __get_user(regs->hi, &context->hi);
-	error |= __get_user(regs->lo, &context->lo);
-
-	error |= __get_user(usedfp, &context->usedfp);
-	if ((umask & 1) && usedfp) {
-		fregs = (u64 *) &current->thread.fpu;
-
-		for(i = 0; i < 32; i++)
-			error |= __get_user(fregs[i], &context->fpregs[i]);
-		error |= __get_user(current->thread.fpu.fcr31, &context->fpcsr);
-	}
-
-	/* XXX do sigstack crapola here... XXX */
-
-	error |= __copy_from_user(&blocked, &context->sigset, sizeof(blocked)) ? -EFAULT : 0;
-
-	if (error)
-		goto badframe;
-
-	sigdelsetmask(&blocked, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = blocked;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	/*
-	 * Don't let your children do this ...
-	 */
-	__asm__ __volatile__(
-		"move\t$29,%0\n\t"
-		"j\tsyscall_exit"
-		:/* no outputs */
-		:"r" (&regs));
-		/* Unreached */
-
-badframe:
-	force_sig(SIGSEGV, current);
-}
-
-struct sigact_irix5 {
-	int flags;
-	void (*handler)(int);
-	u32 sigset[4];
-	int _unused0[2];
-};
-
-#define SIG_SETMASK32	256	/* Goodie from SGI for BSD compatibility:
-				   set only the low 32 bit of the sigset.  */
-
-#ifdef DEBUG_SIG
-static inline void dump_sigact_irix5(struct sigact_irix5 *p)
-{
-	printk("<f[%d] hndlr[%08lx] msk[%08lx]>", p->flags,
-	       (unsigned long) p->handler,
-	       (unsigned long) p->sigset[0]);
-}
-#endif
-
-asmlinkage int
-irix_sigaction(int sig, const struct sigaction __user *act,
-	      struct sigaction __user *oact, void __user *trampoline)
-{
-	struct k_sigaction new_ka, old_ka;
-	int ret;
-
-#ifdef DEBUG_SIG
-	printk(" (%d,%s,%s,%08lx) ", sig, (!new ? "0" : "NEW"),
-	       (!old ? "0" : "OLD"), trampoline);
-	if(new) {
-		dump_sigact_irix5(new); printk(" ");
-	}
-#endif
-	if (act) {
-		sigset_t mask;
-		int err;
-
-		if (!access_ok(VERIFY_READ, act, sizeof(*act)))
-			return -EFAULT;
-		err = __get_user(new_ka.sa.sa_handler, &act->sa_handler);
-		err |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-
-		err |= __copy_from_user(&mask, &act->sa_mask, sizeof(sigset_t)) ? -EFAULT : 0;
-		if (err)
-			return err;
-
-		/*
-		 * Hmmm... methinks IRIX libc always passes a valid trampoline
-		 * value for all invocations of sigaction.  Will have to
-		 * investigate.  POSIX POSIX, die die die...
-		 */
-		new_ka.sa_restorer = trampoline;
-	}
-
-/* XXX Implement SIG_SETMASK32 for IRIX compatibility */
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		int err;
-
-		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)))
-			return -EFAULT;
-
-		err = __put_user(old_ka.sa.sa_handler, &oact->sa_handler);
-		err |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		err |= __copy_to_user(&oact->sa_mask, &old_ka.sa.sa_mask,
-		               sizeof(sigset_t)) ? -EFAULT : 0;
-		if (err)
-			return -EFAULT;
-	}
-
-	return ret;
-}
-
-asmlinkage int irix_sigpending(irix_sigset_t __user *set)
-{
-	return do_sigpending(set, sizeof(*set));
-}
-
-asmlinkage int irix_sigprocmask(int how, irix_sigset_t __user *new,
-	irix_sigset_t __user *old)
-{
-	sigset_t oldbits, newbits;
-
-	if (new) {
-		if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-			return -EFAULT;
-		if (__copy_from_user(&newbits, new, sizeof(unsigned long)*4))
-			return -EFAULT;
-		sigdelsetmask(&newbits, ~_BLOCKABLE);
-
-		spin_lock_irq(&current->sighand->siglock);
-		oldbits = current->blocked;
-
-		switch(how) {
-		case 1:
-			sigorsets(&newbits, &oldbits, &newbits);
-			break;
-
-		case 2:
-			sigandsets(&newbits, &oldbits, &newbits);
-			break;
-
-		case 3:
-			break;
-
-		case 256:
-			siginitset(&newbits, newbits.sig[0]);
-			break;
-
-		default:
-			spin_unlock_irq(&current->sighand->siglock);
-			return -EINVAL;
-		}
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
-	}
-	if (old)
-		return copy_to_user(old, &current->blocked,
-		                  sizeof(unsigned long)*4) ? -EFAULT : 0;
-
-	return 0;
-}
-
-asmlinkage int irix_sigsuspend(struct pt_regs *regs)
-{
-	sigset_t newset;
-	sigset_t __user *uset;
-
-	uset = (sigset_t __user *) regs->regs[4];
-	if (copy_from_user(&newset, uset, sizeof(sigset_t)))
-		return -EFAULT;
-	sigdelsetmask(&newset, ~_BLOCKABLE);
-
-	spin_lock_irq(&current->sighand->siglock);
-	current->saved_sigmask = current->blocked;
-	current->blocked = newset;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
-
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-	set_thread_flag(TIF_RESTORE_SIGMASK);
-	return -ERESTARTNOHAND;
-}
-
-/* hate hate hate... */
-struct irix5_siginfo {
-	int sig, code, error;
-	union {
-		char unused[128 - (3 * 4)]; /* Safety net. */
-		struct {
-			int pid;
-			union {
-				int uid;
-				struct {
-					int utime, status, stime;
-				} child;
-			} procdata;
-		} procinfo;
-
-		unsigned long fault_addr;
-
-		struct {
-			int fd;
-			long band;
-		} fileinfo;
-
-		unsigned long sigval;
-	} stuff;
-};
-
-asmlinkage int irix_sigpoll_sys(unsigned long __user *set,
-	struct irix5_siginfo __user *info, struct timespec __user *tp)
-{
-	long expire = MAX_SCHEDULE_TIMEOUT;
-	sigset_t kset;
-	int i, sig, error, timeo = 0;
-	struct timespec ktp;
-
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_sigpoll_sys(%p,%p,%p)\n",
-	       current->comm, current->pid, set, info, tp);
-#endif
-
-	/* Must always specify the signal set. */
-	if (!set)
-		return -EINVAL;
-
-	if (copy_from_user(&kset, set, sizeof(set)))
-		return -EFAULT;
-
-	if (info && clear_user(info, sizeof(*info))) {
-		error = -EFAULT;
-		goto out;
-	}
-
-	if (tp) {
-		if (copy_from_user(&ktp, tp, sizeof(*tp)))
-			return -EFAULT;
-
-		if (!ktp.tv_sec && !ktp.tv_nsec)
-			return -EINVAL;
-
-		expire = timespec_to_jiffies(&ktp) +
-		         (ktp.tv_sec || ktp.tv_nsec);
-	}
-
-	while(1) {
-		long tmp = 0;
-
-		expire = schedule_timeout_interruptible(expire);
-
-		for (i=0; i < _IRIX_NSIG_WORDS; i++)
-			tmp |= (current->pending.signal.sig[i] & kset.sig[i]);
-
-		if (tmp)
-			break;
-		if (!expire) {
-			timeo = 1;
-			break;
-		}
-		if (signal_pending(current))
-			return -EINTR;
-	}
-	if (timeo)
-		return -EAGAIN;
-
-	for (sig = 1; i <= 65 /* IRIX_NSIG */; sig++) {
-		if (sigismember (&kset, sig))
-			continue;
-		if (sigismember (&current->pending.signal, sig)) {
-			/* XXX need more than this... */
-			if (info)
-				return copy_to_user(&info->sig, &sig, sizeof(sig));
-			return 0;
-		}
-	}
-
-	/* Should not get here, but do something sane if we do. */
-	error = -EINTR;
-
-out:
-	return error;
-}
-
-/* This is here because of irix5_siginfo definition. */
-#define IRIX_P_PID    0
-#define IRIX_P_PGID   2
-#define IRIX_P_ALL    7
-
-#define W_EXITED     1
-#define W_TRAPPED    2
-#define W_STOPPED    4
-#define W_CONT       8
-#define W_NOHANG    64
-
-#define W_MASK      (W_EXITED | W_TRAPPED | W_STOPPED | W_CONT | W_NOHANG)
-
-asmlinkage int irix_waitsys(int type, int upid,
-	struct irix5_siginfo __user *info, int options,
-	struct rusage __user *ru)
-{
-	struct pid *pid = NULL;
-	int flag, retval;
-	DECLARE_WAITQUEUE(wait, current);
-	struct task_struct *tsk;
-	struct task_struct *p;
-	struct list_head *_p;
-
-	if (!info)
-		return -EINVAL;
-
-	if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
-		return -EFAULT;
-
-	if (ru)
-		if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru)))
-			return -EFAULT;
-
-	if (options & ~W_MASK)
-		return -EINVAL;
-
-	if (type != IRIX_P_PID && type != IRIX_P_PGID && type != IRIX_P_ALL)
-		return -EINVAL;
-
-	if (type != IRIX_P_ALL)
-		pid = find_get_pid(upid);
-	add_wait_queue(&current->signal->wait_chldexit, &wait);
-repeat:
-	flag = 0;
-	current->state = TASK_INTERRUPTIBLE;
-	read_lock(&tasklist_lock);
-	tsk = current;
-	list_for_each(_p, &tsk->children) {
-		p = list_entry(_p, struct task_struct, sibling);
-		if ((type == IRIX_P_PID) && task_pid(p) != pid)
-			continue;
-		if ((type == IRIX_P_PGID) && task_pgrp(p) != pid)
-			continue;
-		if ((p->exit_signal != SIGCHLD))
-			continue;
-		flag = 1;
-		switch (p->state) {
-		case TASK_STOPPED:
-			if (!p->exit_code)
-				continue;
-			if (!(options & (W_TRAPPED|W_STOPPED)) &&
-			    !(p->ptrace & PT_PTRACED))
-				continue;
-			read_unlock(&tasklist_lock);
-
-			/* move to end of parent's list to avoid starvation */
-			write_lock_irq(&tasklist_lock);
-			remove_parent(p);
-			add_parent(p);
-			write_unlock_irq(&tasklist_lock);
-			retval = ru ? getrusage(p, RUSAGE_BOTH, ru) : 0;
-			if (retval)
-				goto end_waitsys;
-
-			retval = __put_user(SIGCHLD, &info->sig);
-			retval |= __put_user(0, &info->code);
-			retval |= __put_user(task_pid_vnr(p), &info->stuff.procinfo.pid);
-			retval |= __put_user((p->exit_code >> 8) & 0xff,
-			           &info->stuff.procinfo.procdata.child.status);
-			retval |= __put_user(p->utime, &info->stuff.procinfo.procdata.child.utime);
-			retval |= __put_user(p->stime, &info->stuff.procinfo.procdata.child.stime);
-			if (retval)
-				goto end_waitsys;
-
-			p->exit_code = 0;
-			goto end_waitsys;
-
-		case EXIT_ZOMBIE:
-			current->signal->cutime += p->utime + p->signal->cutime;
-			current->signal->cstime += p->stime + p->signal->cstime;
-			if (ru != NULL)
-				getrusage(p, RUSAGE_BOTH, ru);
-			retval = __put_user(SIGCHLD, &info->sig);
-			retval |= __put_user(1, &info->code);      /* CLD_EXITED */
-			retval |= __put_user(task_pid_vnr(p), &info->stuff.procinfo.pid);
-			retval |= __put_user((p->exit_code >> 8) & 0xff,
-			           &info->stuff.procinfo.procdata.child.status);
-			retval |= __put_user(p->utime,
-			           &info->stuff.procinfo.procdata.child.utime);
-			retval |= __put_user(p->stime,
-			           &info->stuff.procinfo.procdata.child.stime);
-			if (retval)
-				goto end_waitsys;
-
-			if (p->real_parent != p->parent) {
-				write_lock_irq(&tasklist_lock);
-				remove_parent(p);
-				p->parent = p->real_parent;
-				add_parent(p);
-				do_notify_parent(p, SIGCHLD);
-				write_unlock_irq(&tasklist_lock);
-			} else
-				release_task(p);
-			goto end_waitsys;
-		default:
-			continue;
-		}
-		tsk = next_thread(tsk);
-	}
-	read_unlock(&tasklist_lock);
-	if (flag) {
-		retval = 0;
-		if (options & W_NOHANG)
-			goto end_waitsys;
-		retval = -ERESTARTSYS;
-		if (signal_pending(current))
-			goto end_waitsys;
-		current->state = TASK_INTERRUPTIBLE;
-		schedule();
-		goto repeat;
-	}
-	retval = -ECHILD;
-end_waitsys:
-	current->state = TASK_RUNNING;
-	remove_wait_queue(&current->signal->wait_chldexit, &wait);
-	put_pid(pid);
-
-	return retval;
-}
-
-struct irix5_context {
-	u32 flags;
-	u32 link;
-	u32 sigmask[4];
-	struct { u32 sp, size, flags; } stack;
-	int regs[36];
-	u32 fpregs[32];
-	u32 fpcsr;
-	u32 _unused0;
-	u32 _unused1[47];
-	u32 weird_graphics_thing;
-};
-
-asmlinkage int irix_getcontext(struct pt_regs *regs)
-{
-	int error, i, base = 0;
-	struct irix5_context __user *ctx;
-	unsigned long flags;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-	ctx = (struct irix5_context __user *) regs->regs[base + 4];
-
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_getcontext(%p)\n",
-	       current->comm, current->pid, ctx);
-#endif
-
-	if (!access_ok(VERIFY_WRITE, ctx, sizeof(*ctx)))
-		return -EFAULT;
-
-	error = __put_user(current->thread.irix_oldctx, &ctx->link);
-
-	error |= __copy_to_user(&ctx->sigmask, &current->blocked, sizeof(irix_sigset_t)) ? -EFAULT : 0;
-
-	/* XXX Do sigstack stuff someday... */
-	error |= __put_user(0, &ctx->stack.sp);
-	error |= __put_user(0, &ctx->stack.size);
-	error |= __put_user(0, &ctx->stack.flags);
-
-	error |= __put_user(0, &ctx->weird_graphics_thing);
-	error |= __put_user(0, &ctx->regs[0]);
-	for (i = 1; i < 32; i++)
-		error |= __put_user(regs->regs[i], &ctx->regs[i]);
-	error |= __put_user(regs->lo, &ctx->regs[32]);
-	error |= __put_user(regs->hi, &ctx->regs[33]);
-	error |= __put_user(regs->cp0_cause, &ctx->regs[34]);
-	error |= __put_user(regs->cp0_epc, &ctx->regs[35]);
-
-	flags = 0x0f;
-	if (!used_math()) {
-		flags &= ~(0x08);
-	} else {
-		/* XXX wheee... */
-		printk("Wheee, no code for saving IRIX FPU context yet.\n");
-	}
-	error |= __put_user(flags, &ctx->flags);
-
-	return error;
-}
-
-asmlinkage void irix_setcontext(struct pt_regs *regs)
-{
-	struct irix5_context __user *ctx;
-	int err, base = 0;
-	u32 flags;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-	ctx = (struct irix5_context __user *) regs->regs[base + 4];
-
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_setcontext(%p)\n",
-	       current->comm, current->pid, ctx);
-#endif
-
-	if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx)))
-		goto segv_and_exit;
-
-	err = __get_user(flags, &ctx->flags);
-	if (flags & 0x02) {
-		/* XXX sigstack garbage, todo... */
-		printk("Wheee, cannot do sigstack stuff in setcontext\n");
-	}
-
-	if (flags & 0x04) {
-		int i;
-
-		/* XXX extra control block stuff... todo... */
-		for (i = 1; i < 32; i++)
-			err |= __get_user(regs->regs[i], &ctx->regs[i]);
-		err |= __get_user(regs->lo, &ctx->regs[32]);
-		err |= __get_user(regs->hi, &ctx->regs[33]);
-		err |= __get_user(regs->cp0_epc, &ctx->regs[35]);
-	}
-
-	if (flags & 0x08)
-		/* XXX fpu context, blah... */
-		printk(KERN_ERR "Wheee, cannot restore FPU context yet...\n");
-
-	err |= __get_user(current->thread.irix_oldctx, &ctx->link);
-	if (err)
-		goto segv_and_exit;
-
-	/*
-	 * Don't let your children do this ...
-	 */
-	__asm__ __volatile__(
-		"move\t$29,%0\n\t"
-		"j\tsyscall_exit"
-		:/* no outputs */
-		:"r" (&regs));
-		/* Unreached */
-
-segv_and_exit:
-	force_sigsegv(SIGSEGV, current);
-}
-
-struct irix_sigstack {
-	unsigned long sp;
-	int status;
-};
-
-asmlinkage int irix_sigstack(struct irix_sigstack __user *new,
-	struct irix_sigstack __user *old)
-{
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_sigstack(%p,%p)\n",
-	       current->comm, current->pid, new, old);
-#endif
-	if (new) {
-		if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-			return -EFAULT;
-	}
-
-	if (old) {
-		if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-struct irix_sigaltstack { unsigned long sp; int size; int status; };
-
-asmlinkage int irix_sigaltstack(struct irix_sigaltstack __user *new,
-				struct irix_sigaltstack __user *old)
-{
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_sigaltstack(%p,%p)\n",
-	       current->comm, current->pid, new, old);
-#endif
-	if (new)
-		if (!access_ok(VERIFY_READ, new, sizeof(*new)))
-			return -EFAULT;
-
-	if (old) {
-		if (!access_ok(VERIFY_WRITE, old, sizeof(*old)))
-			return -EFAULT;
-	}
-
-	return 0;
-}
-
-struct irix_procset {
-	int cmd, ltype, lid, rtype, rid;
-};
-
-asmlinkage int irix_sigsendset(struct irix_procset __user *pset, int sig)
-{
-	if (!access_ok(VERIFY_READ, pset, sizeof(*pset)))
-		return -EFAULT;
-#ifdef DEBUG_SIG
-	printk("[%s:%d] irix_sigsendset([%d,%d,%d,%d,%d],%d)\n",
-	       current->comm, current->pid,
-	       pset->cmd, pset->ltype, pset->lid, pset->rtype, pset->rid,
-	       sig);
-#endif
-	return -EINVAL;
-}

arch/mips/kernel/process.c

···
 	*childregs = *regs;
 	childregs->regs[7] = 0;	/* Clear error flag */
 
-#if defined(CONFIG_BINFMT_IRIX)
-	if (current->personality != PER_LINUX) {
-		/* Under IRIX things are a little different. */
-		childregs->regs[3] = 1;
-		regs->regs[3] = 0;
-	}
-#endif
 	childregs->regs[2] = 0;	/* Child gets zero as return value */
 	regs->regs[2] = p->pid;
 

arch/mips/kernel/scall32-o32.S

···
 
 	lw	t1, PT_EPC(sp)		# skip syscall on return
 
-#if defined(CONFIG_BINFMT_IRIX)
-	sltiu	t0, v0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
 	subu	v0, v0, __NR_O32_Linux	# check syscall number
 	sltiu	t0, v0, __NR_O32_Linux_syscalls + 1
-#endif
 	addiu	t1, 4			# skip to next instruction
 	sw	t1, PT_EPC(sp)
 	beqz	t0, illegal_syscall
···
 	END(sys_sysmips)
 
 	LEAF(sys_syscall)
-#if defined(CONFIG_BINFMT_IRIX)
-	sltiu	v0, a0, MAX_SYSCALL_NO + 1 # check syscall number
-#else
 	subu	t0, a0, __NR_O32_Linux	# check syscall number
 	sltiu	v0, t0, __NR_O32_Linux_syscalls + 1
-#endif
 	sll	t1, t0, 3
 	beqz	v0, einval
 
 	lw	t2, sys_call_table(t1)		# syscall routine
 
-#if defined(CONFIG_BINFMT_IRIX)
-	li	v1, 4000			# nr of sys_syscall
-#else
 	li	v1, 4000 - __NR_O32_Linux	# index of sys_syscall
-#endif
 	beq	t0, v1, einval			# do not recurse
 
 	/* Some syscalls like execve get their arguments from struct pt_regs
···
 	.endm
 
 	.macro	syscalltable
-#if defined(CONFIG_BINFMT_IRIX)
-	mille	sys_ni_syscall		0	/*    0 -  999 SVR4 flavour */
-	mille	sys_ni_syscall		0	/* 1000 - 1999 32-bit IRIX */
-	mille	sys_ni_syscall		0	/* 2000 - 2999 BSD43 flavour */
-	mille	sys_ni_syscall		0	/* 3000 - 3999 POSIX flavour */
-#endif
-
 	sys	sys_syscall		8	/* 4000 */
 	sys	sys_exit		1
 	sys	sys_fork		0

arch/mips/kernel/sysirix.c

···
-/*
- * sysirix.c: IRIX system call emulation.
- *
- * Copyright (C) 1996 David S. Miller
- * Copyright (C) 1997 Miguel de Icaza
- * Copyright (C) 1997, 1998, 1999, 2000 Ralf Baechle
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/binfmts.h>
-#include <linux/capability.h>
-#include <linux/highuid.h>
-#include <linux/pagemap.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/slab.h>
-#include <linux/swap.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/times.h>
-#include <linux/elf.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/utsname.h>
-#include <linux/file.h>
-#include <linux/vfs.h>
-#include <linux/namei.h>
-#include <linux/socket.h>
-#include <linux/security.h>
-#include <linux/syscalls.h>
-#include <linux/resource.h>
-
-#include <asm/ptrace.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-#include <asm/inventory.h>
-
-/* 2,191 lines of complete and utter shit coming up... */
-
-extern int max_threads;
-
-/* The sysmp commands supported thus far. */
-#define MP_NPROCS       	1 /* # processor in complex */
-#define MP_NAPROCS      	2 /* # active processors in complex */
-#define MP_PGSIZE           	14 /* Return system page size in v1. */
-
-asmlinkage int irix_sysmp(struct pt_regs *regs)
-{
-	unsigned long cmd;
-	int base = 0;
-	int error = 0;
-
-	if(regs->regs[2] == 1000)
-		base = 1;
-	cmd = regs->regs[base + 4];
-	switch(cmd) {
-	case MP_PGSIZE:
-		error = PAGE_SIZE;
-		break;
-	case MP_NPROCS:
-	case MP_NAPROCS:
-		error = num_online_cpus();
-		break;
-	default:
-		printk("SYSMP[%s:%d]: Unsupported opcode %d\n",
-		       current->comm, current->pid, (int)cmd);
-		error = -EINVAL;
-		break;
-	}
-
-	return error;
-}
-
-/* The prctl commands. */
-#define PR_MAXPROCS		 1 /* Tasks/user. */
-#define PR_ISBLOCKED		 2 /* If blocked, return 1. */
-#define PR_SETSTACKSIZE		 3 /* Set largest task stack size. */
-#define PR_GETSTACKSIZE		 4 /* Get largest task stack size. */
-#define PR_MAXPPROCS		 5 /* Num parallel tasks. */
-#define PR_UNBLKONEXEC		 6 /* When task exec/exit's, unblock. */
-#define PR_SETEXITSIG		 8 /* When task exit's, set signal. */
-#define PR_RESIDENT		 9 /* Make task unswappable. */
-#define PR_ATTACHADDR		10 /* (Re-)Connect a vma to a task. */
-#define PR_DETACHADDR		11 /* Disconnect a vma from a task. */
-#define PR_TERMCHILD		12 /* Kill child if the parent dies. */
-#define PR_GETSHMASK		13 /* Get the sproc() share mask. */
-#define PR_GETNSHARE		14 /* Number of share group members. */
-#define PR_COREPID		15 /* Add task pid to name when it core. */
-#define PR_ATTACHADDRPERM	16 /* (Re-)Connect vma, with specified prot. */
-#define PR_PTHREADEXIT		17 /* Kill a pthread, only for IRIX 6.[234] */
-
-asmlinkage int irix_prctl(unsigned option, ...)
-{
-	va_list args;
-	int error = 0;
-
-	va_start(args, option);
-	switch (option) {
-	case PR_MAXPROCS:
-		printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
-		       current->comm, current->pid);
-		error = max_threads;
-		break;
-
-	case PR_ISBLOCKED: {
-		struct task_struct *task;
-
-		printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
-		       current->comm, current->pid);
-		read_lock(&tasklist_lock);
-		task = find_task_by_vpid(va_arg(args, pid_t));
-		error = -ESRCH;
-		if (error)
-			error = (task->run_list.next != NULL);
-		read_unlock(&tasklist_lock);
-		/* Can _your_ OS find this out that fast? */
-		break;
-	}
-
-	case PR_SETSTACKSIZE: {
-		long value = va_arg(args, long);
-
-		printk("irix_prctl[%s:%d]: Wants PR_SETSTACKSIZE<%08lx>\n",
-		       current->comm, current->pid, (unsigned long) value);
-		if (value > RLIM_INFINITY)
-			value = RLIM_INFINITY;
-		if (capable(CAP_SYS_ADMIN)) {
-			task_lock(current->group_leader);
-			current->signal->rlim[RLIMIT_STACK].rlim_max =
-				current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
-			task_unlock(current->group_leader);
-			error = value;
-			break;
-		}
-		task_lock(current->group_leader);
-		if (value > current->signal->rlim[RLIMIT_STACK].rlim_max) {
-			error = -EINVAL;
-			task_unlock(current->group_leader);
-			break;
-		}
-		current->signal->rlim[RLIMIT_STACK].rlim_cur = value;
-		task_unlock(current->group_leader);
-		error = value;
-		break;
-	}
-
-	case PR_GETSTACKSIZE:
-		printk("irix_prctl[%s:%d]: Wants PR_GETSTACKSIZE\n",
-		       current->comm, current->pid);
-		error = current->signal->rlim[RLIMIT_STACK].rlim_cur;
-		break;
-
-	case PR_MAXPPROCS:
-		printk("irix_prctl[%s:%d]: Wants PR_MAXPROCS\n",
-		       current->comm, current->pid);
-		error = 1;
-		break;
-
-	case PR_UNBLKONEXEC:
-		printk("irix_prctl[%s:%d]: Wants PR_UNBLKONEXEC\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	case PR_SETEXITSIG:
-		printk("irix_prctl[%s:%d]: Wants PR_SETEXITSIG\n",
-		       current->comm, current->pid);
-
-		/* We can probably play some game where we set the task
-		 * exit_code to some non-zero value when this is requested,
-		 * and check whether exit_code is already set in do_exit().
-		 */
-		error = -EINVAL;
-		break;
-
-	case PR_RESIDENT:
-		printk("irix_prctl[%s:%d]: Wants PR_RESIDENT\n",
-		       current->comm, current->pid);
-		error = 0; /* Compatibility indeed. */
-		break;
-
-	case PR_ATTACHADDR:
-		printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDR\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	case PR_DETACHADDR:
-		printk("irix_prctl[%s:%d]: Wants PR_DETACHADDR\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	case PR_TERMCHILD:
-		printk("irix_prctl[%s:%d]: Wants PR_TERMCHILD\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	case PR_GETSHMASK:
-		printk("irix_prctl[%s:%d]: Wants PR_GETSHMASK\n",
-		       current->comm, current->pid);
-		error = -EINVAL; /* Until I have the sproc() stuff in. */
-		break;
-
-	case PR_GETNSHARE:
-		error = 0;       /* Until I have the sproc() stuff in. */
-		break;
-
-	case PR_COREPID:
-		printk("irix_prctl[%s:%d]: Wants PR_COREPID\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	case PR_ATTACHADDRPERM:
-		printk("irix_prctl[%s:%d]: Wants PR_ATTACHADDRPERM\n",
-		       current->comm, current->pid);
-		error = -EINVAL;
-		break;
-
-	default:
-		printk("irix_prctl[%s:%d]: Non-existant opcode %d\n",
-		       current->comm, current->pid, option);
-		error = -EINVAL;
-		break;
-	}
-	va_end(args);
-
-	return error;
-}
-
-#undef DEBUG_PROCGRPS
-
-extern unsigned long irix_mapelf(int fd, struct elf_phdr __user *user_phdrp, int cnt);
-extern char *prom_getenv(char *name);
-extern long prom_setenv(char *name, char *value);
-
-/* The syssgi commands supported thus far. */
-#define SGI_SYSID         1       /* Return unique per-machine identifier. */
-#define SGI_INVENT        5       /* Fetch inventory  */
-#   define SGI_INV_SIZEOF 1
-#   define SGI_INV_READ   2
-#define SGI_RDNAME        6       /* Return string name of a process. */
-#define SGI_SETNVRAM	  8	  /* Set PROM variable. */
-#define SGI_GETNVRAM	  9	  /* Get PROM variable. */
-#define SGI_SETPGID      21       /* Set process group id. */
-#define SGI_SYSCONF      22       /* POSIX sysconf garbage. */
-#define SGI_PATHCONF     24       /* POSIX sysconf garbage. */
-#define SGI_SETGROUPS    40       /* POSIX sysconf garbage. */
-#define SGI_GETGROUPS    41       /* POSIX sysconf garbage. */
-#define SGI_RUSAGE       56       /* BSD style rusage(). */
-#define SGI_SSYNC        62       /* Synchronous fs sync. */
-#define SGI_GETSID       65       /* SysVr4 get session id. */
-#define SGI_ELFMAP       68       /* Map an elf image. */
-#define SGI_TOSSTSAVE   108       /* Toss saved vma's. */
-#define SGI_FP_BCOPY    129       /* Should FPU bcopy be used on this machine? */
-#define SGI_PHYSP      1011       /* Translate virtual into physical page. */
-
-asmlinkage int irix_syssgi(struct pt_regs *regs)
-{
-	unsigned long cmd;
-	int retval, base = 0;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-
-	cmd = regs->regs[base + 4];
-	switch(cmd) {
-	case SGI_SYSID: {
-		char __user *buf = (char __user *) regs->regs[base + 5];
-
-		/* XXX Use ethernet addr.... */
-		retval = clear_user(buf, 64) ? -EFAULT : 0;
-		break;
-	}
-#if 0
-	case SGI_RDNAME: {
-		int pid = (int) regs->regs[base + 5];
-		char __user *buf = (char __user *) regs->regs[base + 6];
-		struct task_struct *p;
-		char tcomm[sizeof(current->comm)];
-
-		read_lock(&tasklist_lock);
-		p = find_task_by_pid(pid);
-		if (!p) {
-			read_unlock(&tasklist_lock);
-			retval = -ESRCH;
-			break;
-		}
-		get_task_comm(tcomm, p);
-		read_unlock(&tasklist_lock);
-
-		/* XXX Need to check sizes. */
-		retval = copy_to_user(buf, tcomm, sizeof(tcomm)) ? -EFAULT : 0;
-		break;
-	}
-
-	case SGI_GETNVRAM: {
-		char __user *name = (char __user *) regs->regs[base+5];
-		char __user *buf = (char __user *) regs->regs[base+6];
-		char *value;
-		return -EINVAL;	/* til I fix it */
-		value = prom_getenv(name);	/* PROM lock?  */
-		if (!value) {
-			retval = -EINVAL;
-			break;
-		}
-		/* Do I strlen() for the length? */
-		retval = copy_to_user(buf, value, 128) ? -EFAULT : 0;
-		break;
-	}
-
-	case SGI_SETNVRAM: {
-		char __user *name = (char __user *) regs->regs[base+5];
-		char __user *value = (char __user *) regs->regs[base+6];
-		return -EINVAL;	/* til I fix it */
-		retval = prom_setenv(name, value);
-		/* XXX make sure retval conforms to syssgi(2) */
-		printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d",
-		       current->comm, current->pid, name, value, retval);
-/*		if (retval == PROM_ENOENT)
-		  	retval = -ENOENT; */
-		break;
-	}
-#endif
-
-	case SGI_SETPGID: {
-#ifdef DEBUG_PROCGRPS
-		printk("[%s:%d] setpgid(%d, %d) ",
-		       current->comm, current->pid,
-		       (int) regs->regs[base + 5], (int)regs->regs[base + 6]);
-#endif
-		retval = sys_setpgid(regs->regs[base + 5], regs->regs[base + 6]);
-
-#ifdef DEBUG_PROCGRPS
-		printk("retval=%d\n", retval);
-#endif
-	}
-
-	case SGI_SYSCONF: {
-		switch(regs->regs[base + 5]) {
-		case 1:
-			retval = (MAX_ARG_PAGES >> 4); /* XXX estimate... */
-			goto out;
-		case 2:
-			retval = max_threads;
-			goto out;
-		case 3:
-			retval = HZ;
-			goto out;
-		case 4:
-			retval = NGROUPS_MAX;
-			goto out;
-		case 5:
-			retval = sysctl_nr_open;
-			goto out;
-		case 6:
-			retval = 1;
-			goto out;
-		case 7:
-			retval = 1;
-			goto out;
-		case 8:
-			retval = 199009;
-			goto out;
-		case 11:
-			retval = PAGE_SIZE;
-			goto out;
-		case 12:
-			retval = 4;
-			goto out;
-		case 25:
-		case 26:
-		case 27:
-		case 28:
-		case 29:
-		case 30:
-			retval = 0;
-			goto out;
-		case 31:
-			retval = 32;
-			goto out;
-		default:
-			retval = -EINVAL;
-			goto out;
-		};
-	}
-
-	case SGI_SETGROUPS:
-		retval = sys_setgroups((int) regs->regs[base + 5],
-		                       (gid_t __user *) regs->regs[base + 6]);
-		break;
-
-	case SGI_GETGROUPS:
-		retval = sys_getgroups((int) regs->regs[base + 5],
-		                       (gid_t __user *) regs->regs[base + 6]);
-		break;
-
-	case SGI_RUSAGE: {
-		struct rusage __user *ru = (struct rusage __user *) regs->regs[base + 6];
-
-		switch((int) regs->regs[base + 5]) {
-		case 0:
-			/* rusage self */
-			retval = getrusage(current, RUSAGE_SELF, ru);
-			goto out;
-
-		case -1:
-			/* rusage children */
-			retval = getrusage(current, RUSAGE_CHILDREN, ru);
-			goto out;
-
-		default:
-			retval = -EINVAL;
-			goto out;
-		};
-	}
-
-	case SGI_SSYNC:
-		sys_sync();
-		retval = 0;
-		break;
-
-	case SGI_GETSID:
-#ifdef DEBUG_PROCGRPS
-		printk("[%s:%d] getsid(%d) ", current->comm, current->pid,
-		       (int) regs->regs[base + 5]);
-#endif
-		retval = sys_getsid(regs->regs[base + 5]);
-#ifdef DEBUG_PROCGRPS
-		printk("retval=%d\n", retval);
-#endif
-		break;
-
-	case SGI_ELFMAP:
-		retval = irix_mapelf((int) regs->regs[base + 5],
-				     (struct elf_phdr __user *) regs->regs[base + 6],
-				     (int) regs->regs[base + 7]);
-		break;
-
-	case SGI_TOSSTSAVE:
-		/* XXX We don't need to do anything? */
-		retval = 0;
-		break;
-
-	case SGI_FP_BCOPY:
-		retval = 0;
-		break;
-
-	case SGI_PHYSP: {
-		unsigned long addr = regs->regs[base + 5];
-		int __user *pageno = (int __user *) (regs->regs[base + 6]);
-		struct mm_struct *mm = current->mm;
-		pgd_t *pgdp;
-		pud_t *pudp;
-		pmd_t *pmdp;
-		pte_t *ptep;
-
-		down_read(&mm->mmap_sem);
-		pgdp = pgd_offset(mm, addr);
-		pudp = pud_offset(pgdp, addr);
-		pmdp = pmd_offset(pudp, addr);
-		ptep = pte_offset(pmdp, addr);
-		retval = -EINVAL;
-		if (ptep) {
-			pte_t pte = *ptep;
-
-			if (pte_val(pte) & (_PAGE_VALID | _PAGE_PRESENT)) {
-				/* b0rked on 64-bit */
-				retval =  put_user((pte_val(pte) & PAGE_MASK) >>
-				                   PAGE_SHIFT, pageno);
-			}
-		}
-		up_read(&mm->mmap_sem);
-		break;
-	}
-
-	case SGI_INVENT: {
-		int  arg1    = (int)    regs->regs [base + 5];
-		void __user *buffer = (void __user *) regs->regs [base + 6];
-		int  count   = (int)    regs->regs [base + 7];
-
-		switch (arg1) {
-		case SGI_INV_SIZEOF:
-			retval = sizeof(inventory_t);
-			break;
-		case SGI_INV_READ:
-			retval = dump_inventory_to_user(buffer, count);
-			break;
-		default:
-			retval = -EINVAL;
-		}
-		break;
-	}
-
-	default:
-		printk("irix_syssgi: Unsupported command %d\n", (int)cmd);
-		retval = -EINVAL;
-		break;
-	};
-
-out:
-	return retval;
-}
-
-asmlinkage int irix_gtime(struct pt_regs *regs)
-{
-	return get_seconds();
-}
-
-/*
- * IRIX is completely broken... it returns 0 on success, otherwise
- * ENOMEM.
- */
-asmlinkage int irix_brk(unsigned long brk)
-{
-	unsigned long rlim;
-	unsigned long newbrk, oldbrk;
-	struct mm_struct *mm = current->mm;
-	int ret;
-
-	down_write(&mm->mmap_sem);
-	if (brk < mm->end_code) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	newbrk = PAGE_ALIGN(brk);
-	oldbrk = PAGE_ALIGN(mm->brk);
-	if (oldbrk == newbrk) {
-		mm->brk = brk;
-		ret = 0;
-		goto out;
-	}
-
-	/*
-	 * Always allow shrinking brk
-	 */
-	if (brk <= mm->brk) {
-		mm->brk = brk;
-		do_munmap(mm, newbrk, oldbrk-newbrk);
-		ret = 0;
-		goto out;
-	}
-	/*
-	 * Check against rlimit and stack..
-	 */
-	rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
-	if (rlim >= RLIM_INFINITY)
-		rlim = ~0;
-	if (brk - mm->end_code > rlim) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	/*
-	 * Check against existing mmap mappings.
-	 */
-	if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE)) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	/*
-	 * Ok, looks good - let it rip.
-	 */
-	if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	mm->brk = brk;
-	ret = 0;
-
-out:
-	up_write(&mm->mmap_sem);
-	return ret;
-}
-
-asmlinkage int irix_getpid(struct pt_regs *regs)
-{
-	regs->regs[3] = task_pid_vnr(current->real_parent);
-	return task_pid_vnr(current);
-}
-
-asmlinkage int irix_getuid(struct pt_regs *regs)
-{
-	regs->regs[3] = current->euid;
-	return current->uid;
-}
-
-asmlinkage int irix_getgid(struct pt_regs *regs)
-{
-	regs->regs[3] = current->egid;
-	return current->gid;
-}
-
-asmlinkage int irix_stime(int value)
-{
-	int err;
-	struct timespec tv;
-
-	tv.tv_sec = value;
-	tv.tv_nsec = 0;
-	err = security_settime(&tv, NULL);
-	if (err)
-		return err;
-
-	write_seqlock_irq(&xtime_lock);
-	xtime.tv_sec = value;
-	xtime.tv_nsec = 0;
-	ntp_clear();
-	write_sequnlock_irq(&xtime_lock);
-
-	return 0;
-}
-
-static inline void jiffiestotv(unsigned long jiffies, struct timeval *value)
-{
-	value->tv_usec = (jiffies % HZ) * (1000000 / HZ);
-	value->tv_sec = jiffies / HZ;
-}
-
-static inline void getitimer_real(struct itimerval *value)
-{
-	register unsigned long val, interval;
-
-	interval = current->it_real_incr;
-	val = 0;
-	if (del_timer(&current->real_timer)) {
-		unsigned long now = jiffies;
-		val = current->real_timer.expires;
-		add_timer(&current->real_timer);
-		/* look out for negative/zero itimer.. */
-		if (val <= now)
-			val = now+1;
-		val -= now;
-	}
-	jiffiestotv(val, &value->it_value);
-	jiffiestotv(interval, &value->it_interval);
-}
-
-asmlinkage unsigned int irix_alarm(unsigned int seconds)
-{
-	return alarm_setitimer(seconds);
-}
-
-asmlinkage int irix_pause(void)
-{
-	current->state = TASK_INTERRUPTIBLE;
-	schedule();
-
-	return -EINTR;
-}
-
-/* XXX need more than this... */
-asmlinkage int irix_mount(char __user *dev_name, char __user *dir_name,
-	unsigned long flags, char __user *type, void __user *data, int datalen)
-{
-	printk("[%s:%d] irix_mount(%p,%p,%08lx,%p,%p,%d)\n",
-	       current->comm, current->pid,
-	       dev_name, dir_name, flags, type, data, datalen);
-
-	return sys_mount(dev_name, dir_name, type, flags, data);
-}
-
-struct irix_statfs {
-	short f_type;
-	long  f_bsize, f_frsize, f_blocks, f_bfree, f_files, f_ffree;
-	char  f_fname[6], f_fpack[6];
-};
-
-asmlinkage int irix_statfs(const char __user *path,
-	struct irix_statfs __user *buf, int len, int fs_type)
-{
-	struct nameidata nd;
-	struct kstatfs kbuf;
-	int error, i;
-
-	/* We don't support this feature yet. */
-	if (fs_type) {
-		error = -EINVAL;
-		goto out;
-	}
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
-		error = -EFAULT;
-		goto out;
-	}
-
-	error = user_path_walk(path, &nd);
-	if (error)
-		goto out;
-
-	error = vfs_statfs(nd.path.dentry, &kbuf);
-	if (error)
-		goto dput_and_out;
-
-	error = __put_user(kbuf.f_type, &buf->f_type);
-	error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-	for (i = 0; i < 6; i++) {
-		error |= __put_user(0, &buf->f_fname[i]);
-		error |= __put_user(0, &buf->f_fpack[i]);
-	}
-
-dput_and_out:
-	path_put(&nd.path);
-out:
-	return error;
-}
-
-asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs __user *buf)
-{
-	struct kstatfs kbuf;
-	struct file *file;
-	int error, i;
-
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statfs))) {
-		error = -EFAULT;
-		goto out;
-	}
-
-	if (!(file = fget(fd))) {
-		error = -EBADF;
-		goto out;
-	}
-
-	error = vfs_statfs(file->f_path.dentry, &kbuf);
-	if (error)
-		goto out_f;
-
-	error = __put_user(kbuf.f_type, &buf->f_type);
-	error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-
-	for (i = 0; i < 6; i++) {
-		error |= __put_user(0, &buf->f_fname[i]);
-		error |= __put_user(0, &buf->f_fpack[i]);
-	}
-
-out_f:
-	fput(file);
-out:
-	return error;
-}
-
-asmlinkage int irix_setpgrp(int flags)
-{
-	int error;
-
-#ifdef DEBUG_PROCGRPS
-	printk("[%s:%d] setpgrp(%d) ", current->comm, current->pid, flags);
-#endif
-	if(!flags)
-		error = task_pgrp_vnr(current);
-	else
-		error = sys_setsid();
-#ifdef DEBUG_PROCGRPS
-	printk("returning %d\n", error);
-#endif
-
-	return error;
-}
-
-asmlinkage int irix_times(struct tms __user *tbuf)
-{
-	int err = 0;
-
-	if (tbuf) {
-		if (!access_ok(VERIFY_WRITE, tbuf, sizeof *tbuf))
-			return -EFAULT;
-
-		err = __put_user(current->utime, &tbuf->tms_utime);
-		err |= __put_user(current->stime, &tbuf->tms_stime);
-		err |= __put_user(current->signal->cutime, &tbuf->tms_cutime);
-		err |= __put_user(current->signal->cstime, &tbuf->tms_cstime);
-	}
-
-	return err;
-}
-
-asmlinkage int irix_exec(struct pt_regs *regs)
-{
-	int error, base = 0;
-	char *filename;
-
-	if(regs->regs[2] == 1000)
-		base = 1;
-	filename = getname((char __user *) (long)regs->regs[base + 4]);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		return error;
-
-	error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
-	                  NULL, regs);
-	putname(filename);
-
-	return error;
-}
-
-asmlinkage int irix_exece(struct pt_regs *regs)
-{
-	int error, base = 0;
-	char *filename;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-	filename = getname((char __user *) (long)regs->regs[base + 4]);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		return error;
-	error = do_execve(filename, (char __user * __user *) (long)regs->regs[base + 5],
-	                  (char __user * __user *) (long)regs->regs[base + 6], regs);
-	putname(filename);
-
-	return error;
-}
-
-asmlinkage unsigned long irix_gethostid(void)
-{
-	printk("[%s:%d]: irix_gethostid() called...\n",
-	       current->comm, current->pid);
-
-	return -EINVAL;
-}
-
-asmlinkage unsigned long irix_sethostid(unsigned long val)
-{
-	printk("[%s:%d]: irix_sethostid(%08lx) called...\n",
-	       current->comm, current->pid, val);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_socket(int family, int type, int protocol)
-{
-	switch(type) {
-	case 1:
-		type = SOCK_DGRAM;
-		break;
-
-	case 2:
-		type = SOCK_STREAM;
-		break;
-
-	case 3:
-		type = 9; /* Invalid... */
-		break;
-
-	case 4:
-		type = SOCK_RAW;
-		break;
-
-	case 5:
-		type = SOCK_RDM;
-		break;
-
-	case 6:
-		type = SOCK_SEQPACKET;
-		break;
-
-	default:
-		break;
-	}
-
-	return sys_socket(family, type, protocol);
-}
-
-asmlinkage int irix_getdomainname(char __user *name, int len)
-{
-	int err;
-
-	down_read(&uts_sem);
-	if (len > __NEW_UTS_LEN)
-		len = __NEW_UTS_LEN;
-	err = copy_to_user(name, utsname()->domainname, len) ? -EFAULT : 0;
-	up_read(&uts_sem);
-
-	return err;
-}
-
-asmlinkage unsigned long irix_getpagesize(void)
-{
-	return PAGE_SIZE;
-}
-
-asmlinkage int irix_msgsys(int opcode, unsigned long arg0, unsigned long arg1,
-			   unsigned long arg2, unsigned long arg3,
-			   unsigned long arg4)
-{
-	switch (opcode) {
-	case 0:
-		return sys_msgget((key_t) arg0, (int) arg1);
-	case 1:
-		return sys_msgctl((int) arg0, (int) arg1,
-		                  (struct msqid_ds __user *)arg2);
-	case 2:
-		return sys_msgrcv((int) arg0, (struct msgbuf __user *) arg1,
-				  (size_t) arg2, (long) arg3, (int) arg4);
-	case 3:
-		return sys_msgsnd((int) arg0, (struct msgbuf __user *) arg1,
-				  (size_t) arg2, (int) arg3);
-	default:
-		return -EINVAL;
-	}
-}
-
-asmlinkage int irix_shmsys(int opcode, unsigned long arg0, unsigned long arg1,
-			   unsigned long arg2, unsigned long arg3)
-{
-	switch (opcode) {
-	case 0:
-		return do_shmat((int) arg0, (char __user *) arg1, (int) arg2,
-				 (unsigned long *) arg3);
-	case 1:
-		return sys_shmctl((int)arg0, (int)arg1,
-		                  (struct shmid_ds __user *)arg2);
-	case 2:
-		return sys_shmdt((char __user *)arg0);
-	case 3:
-		return sys_shmget((key_t) arg0, (int) arg1, (int) arg2);
-	default:
-		return -EINVAL;
-	}
-}
-
-asmlinkage int irix_semsys(int opcode, unsigned long arg0, unsigned long arg1,
-			   unsigned long arg2, int arg3)
-{
-	switch (opcode) {
-	case 0:
-		return sys_semctl((int) arg0, (int) arg1, (int) arg2,
-				  (union semun) arg3);
-	case 1:
-		return sys_semget((key_t) arg0, (int) arg1, (int) arg2);
-	case 2:
-		return sys_semop((int) arg0, (struct sembuf __user *)arg1,
-				 (unsigned int) arg2);
-	default:
-		return -EINVAL;
-	}
-}
-
-static inline loff_t llseek(struct file *file, loff_t offset, int origin)
-{
-	loff_t (*fn)(struct file *, loff_t, int);
-	loff_t retval;
-
-	fn = default_llseek;
-	if (file->f_op && file->f_op->llseek)
-	fn = file->f_op->llseek;
-	lock_kernel();
-	retval = fn(file, offset, origin);
-	unlock_kernel();
-
-	return retval;
-}
-
-asmlinkage int irix_lseek64(int fd, int _unused, int offhi, int offlow,
-                            int origin)
-{
-	struct file * file;
-	loff_t offset;
-	int retval;
-
-	retval = -EBADF;
-	file = fget(fd);
-	if (!file)
-		goto bad;
-	retval = -EINVAL;
-	if (origin > 2)
-		goto out_putf;
-
-	offset = llseek(file, ((loff_t) offhi << 32) | offlow, origin);
-	retval = (int) offset;
-
-out_putf:
-	fput(file);
-bad:
-	return retval;
-}
-
-asmlinkage int irix_sginap(int ticks)
-{
-	schedule_timeout_interruptible(ticks);
-	return 0;
-}
-
-asmlinkage int irix_sgikopt(char __user *istring, char __user *ostring, int len)
-{
-	return -EINVAL;
-}
-
-asmlinkage int irix_gettimeofday(struct timeval __user *tv)
-{
-	time_t sec;
-	long nsec, seq;
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, tv, sizeof(struct timeval)))
-		return -EFAULT;
-
-	do {
-		seq = read_seqbegin(&xtime_lock);
-		sec = xtime.tv_sec;
-		nsec = xtime.tv_nsec;
-	} while (read_seqretry(&xtime_lock, seq));
-
-	err = __put_user(sec, &tv->tv_sec);
-	err |= __put_user((nsec / 1000), &tv->tv_usec);
-
-	return err;
-}
-
-#define IRIX_MAP_AUTOGROW 0x40
-
-asmlinkage unsigned long irix_mmap32(unsigned long addr, size_t len, int prot,
-				     int flags, int fd, off_t offset)
-{
-	struct file *file = NULL;
-	unsigned long retval;
-
-	if (!(flags & MAP_ANONYMOUS)) {
-		if (!(file = fget(fd)))
-			return -EBADF;
-
-		/* Ok, bad taste hack follows, try to think in something else
-		 * when reading this.  */
-		if (flags & IRIX_MAP_AUTOGROW) {
-			unsigned long old_pos;
-			long max_size = offset + len;
-
-			if (max_size > file->f_path.dentry->d_inode->i_size) {
-				old_pos = sys_lseek(fd, max_size - 1, 0);
-				sys_write(fd, (void __user *) "", 1);
-				sys_lseek(fd, old_pos, 0);
-			}
-		}
-	}
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-	down_write(&current->mm->mmap_sem);
-	retval = do_mmap(file, addr, len, prot, flags, offset);
-	up_write(&current->mm->mmap_sem);
-	if (file)
-		fput(file);
-
-	return retval;
-}
-
-asmlinkage int irix_madvise(unsigned long addr, int len, int behavior)
-{
-	printk("[%s:%d] Wheee.. irix_madvise(%08lx,%d,%d)\n",
-	       current->comm, current->pid, addr, len, behavior);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_pagelock(char __user *addr, int len, int op)
-{
-	printk("[%s:%d] Wheee.. irix_pagelock(%p,%d,%d)\n",
-	       current->comm, current->pid, addr, len, op);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_quotactl(struct pt_regs *regs)
-{
-	printk("[%s:%d] Wheee.. irix_quotactl()\n",
-	       current->comm, current->pid);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_BSDsetpgrp(int pid, int pgrp)
-{
-	int error;
-
-#ifdef DEBUG_PROCGRPS
-	printk("[%s:%d] BSDsetpgrp(%d, %d) ", current->comm, current->pid,
-	       pid, pgrp);
-#endif
-	if(!pid)
-		pid = task_pid_vnr(current);
-
-	/* Wheee, weird sysv thing... */
-	if ((pgrp == 0) && (pid == task_pid_vnr(current)))
-		error = sys_setsid();
-	else
-		error = sys_setpgid(pid, pgrp);
-
-#ifdef DEBUG_PROCGRPS
-	printk("error = %d\n", error);
-#endif
-
-	return error;
-}
-
-asmlinkage int irix_systeminfo(int cmd, char __user *buf, int cnt)
-{
-	printk("[%s:%d] Wheee.. irix_systeminfo(%d,%p,%d)\n",
-	       current->comm, current->pid, cmd, buf, cnt);
-
-	return -EINVAL;
-}
-
-struct iuname {
-	char sysname[257], nodename[257], release[257];
-	char version[257], machine[257];
-	char m_type[257], base_rel[257];
-	char _unused0[257], _unused1[257], _unused2[257];
-	char _unused3[257], _unused4[257], _unused5[257];
-};
-
-asmlinkage int irix_uname(struct iuname __user *buf)
-{
-	down_read(&uts_sem);
-	if (copy_from_user(utsname()->sysname, buf->sysname, 65)
-	    || copy_from_user(utsname()->nodename, buf->nodename, 65)
-	    || copy_from_user(utsname()->release, buf->release, 65)
-	    || copy_from_user(utsname()->version, buf->version, 65)
-	    || copy_from_user(utsname()->machine, buf->machine, 65)) {
-		return -EFAULT;
-	}
-	up_read(&uts_sem);
-
-	return 1;
-}
-
-#undef DEBUG_XSTAT
-
-static int irix_xstat32_xlate(struct kstat *stat, void __user *ubuf)
-{
-	struct xstat32 {
-		u32 st_dev, st_pad1[3], st_ino, st_mode, st_nlink, st_uid, st_gid;
-		u32 st_rdev, st_pad2[2], st_size, st_pad3;
-		u32 st_atime0, st_atime1;
-		u32 st_mtime0, st_mtime1;
-		u32 st_ctime0, st_ctime1;
-		u32 st_blksize, st_blocks;
-		char st_fstype[16];
-		u32 st_pad4[8];
-	} ub;
-
-	if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
-		return -EOVERFLOW;
-	ub.st_dev     = sysv_encode_dev(stat->dev);
-	ub.st_ino     = stat->ino;
-	ub.st_mode    = stat->mode;
-	ub.st_nlink   = stat->nlink;
-	SET_UID(ub.st_uid, stat->uid);
-	SET_GID(ub.st_gid, stat->gid);
-	ub.st_rdev    = sysv_encode_dev(stat->rdev);
-#if BITS_PER_LONG == 32
-	if (stat->size > MAX_NON_LFS)
-		return -EOVERFLOW;
-#endif
-	ub.st_size    = stat->size;
-	ub.st_atime0  = stat->atime.tv_sec;
-	ub.st_atime1  = stat->atime.tv_nsec;
-	ub.st_mtime0  = stat->mtime.tv_sec;
-	ub.st_mtime1  = stat->atime.tv_nsec;
-	ub.st_ctime0  = stat->ctime.tv_sec;
-	ub.st_ctime1  = stat->atime.tv_nsec;
-	ub.st_blksize = stat->blksize;
-	ub.st_blocks  = stat->blocks;
-	strcpy(ub.st_fstype, "efs");
-
-	return copy_to_user(ubuf, &ub, sizeof(ub)) ? -EFAULT : 0;
-}
-
-static int irix_xstat64_xlate(struct kstat *stat, void __user *ubuf)
-{
-	struct xstat64 {
-		u32 st_dev; s32 st_pad1[3];
-		unsigned long long st_ino;
-		u32 st_mode;
-		u32 st_nlink; s32 st_uid; s32 st_gid; u32 st_rdev;
-		s32 st_pad2[2];
-		long long st_size;
-		s32 st_pad3;
-		struct { s32 tv_sec, tv_nsec; } st_atime, st_mtime, st_ctime;
-		s32 st_blksize;
-		long long  st_blocks;
-		char st_fstype[16];
-		s32 st_pad4[8];
-	} ks;
-
-	if (!sysv_valid_dev(stat->dev) || !sysv_valid_dev(stat->rdev))
-		return -EOVERFLOW;
-
-	ks.st_dev = sysv_encode_dev(stat->dev);
-	ks.st_pad1[0] = ks.st_pad1[1] = ks.st_pad1[2] = 0;
-	ks.st_ino = (unsigned long long) stat->ino;
-	ks.st_mode = (u32) stat->mode;
-	ks.st_nlink = (u32) stat->nlink;
-	ks.st_uid = (s32) stat->uid;
-	ks.st_gid = (s32) stat->gid;
-	ks.st_rdev = sysv_encode_dev(stat->rdev);
-	ks.st_pad2[0] = ks.st_pad2[1] = 0;
-	ks.st_size = (long long) stat->size;
-	ks.st_pad3 = 0;
-
-	/* XXX hackety hack... */
-	ks.st_atime.tv_sec = (s32) stat->atime.tv_sec;
-	ks.st_atime.tv_nsec = stat->atime.tv_nsec;
-	ks.st_mtime.tv_sec = (s32) stat->mtime.tv_sec;
-	ks.st_mtime.tv_nsec = stat->mtime.tv_nsec;
-	ks.st_ctime.tv_sec = (s32) stat->ctime.tv_sec;
-	ks.st_ctime.tv_nsec = stat->ctime.tv_nsec;
-
-	ks.st_blksize = (s32) stat->blksize;
-	ks.st_blocks = (long long) stat->blocks;
-	memset(ks.st_fstype, 0, 16);
-	ks.st_pad4[0] = ks.st_pad4[1] = ks.st_pad4[2] = ks.st_pad4[3] = 0;
-	ks.st_pad4[4] = ks.st_pad4[5] = ks.st_pad4[6] = ks.st_pad4[7] = 0;
-
-	/* Now write it all back. */
-	return copy_to_user(ubuf, &ks, sizeof(ks)) ? -EFAULT : 0;
-}
-
-asmlinkage int irix_xstat(int version, char __user *filename, struct stat __user *statbuf)
-{
-	int retval;
-	struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-	printk("[%s:%d] Wheee.. irix_xstat(%d,%s,%p) ",
-	       current->comm, current->pid, version, filename, statbuf);
-#endif
-
-	retval = vfs_stat(filename, &stat);
-	if (!retval) {
-		switch(version) {
-			case 2:
-				retval = irix_xstat32_xlate(&stat, statbuf);
-				break;
-			case 3:
-				retval = irix_xstat64_xlate(&stat, statbuf);
-				break;
-			default:
-				retval = -EINVAL;
-		}
-	}
-	return retval;
-}
-
-asmlinkage int irix_lxstat(int version, char __user *filename, struct stat __user *statbuf)
-{
-	int error;
-	struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-	printk("[%s:%d] Wheee.. irix_lxstat(%d,%s,%p) ",
-	       current->comm, current->pid, version, filename, statbuf);
-#endif
-
-	error = vfs_lstat(filename, &stat);
-
-	if (!error) {
-		switch (version) {
-			case 2:
-				error = irix_xstat32_xlate(&stat, statbuf);
-				break;
-			case 3:
-				error = irix_xstat64_xlate(&stat, statbuf);
-				break;
-			default:
-				error = -EINVAL;
-		}
-	}
-	return error;
-}
-
-asmlinkage int irix_fxstat(int version, int fd, struct stat __user *statbuf)
-{
-	int error;
-	struct kstat stat;
-
-#ifdef DEBUG_XSTAT
-	printk("[%s:%d] Wheee.. irix_fxstat(%d,%d,%p) ",
-	       current->comm, current->pid, version, fd, statbuf);
-#endif
-
-	error = vfs_fstat(fd, &stat);
-	if (!error) {
-		switch (version) {
-			case 2:
-				error = irix_xstat32_xlate(&stat, statbuf);
-				break;
-			case 3:
-				error = irix_xstat64_xlate(&stat, statbuf);
-				break;
-			default:
-				error = -EINVAL;
-		}
-	}
-	return error;
-}
-
-asmlinkage int irix_xmknod(int ver, char __user *filename, int mode, unsigned dev)
-{
-	int retval;
-	printk("[%s:%d] Wheee.. irix_xmknod(%d,%s,%x,%x)\n",
-	       current->comm, current->pid, ver, filename, mode, dev);
-
-	switch(ver) {
-	case 2:
-		/* shouldn't we convert here as well as on stat()? */
-		retval = sys_mknod(filename, mode, dev);
-		break;
-
-	default:
-		retval = -EINVAL;
-		break;
-	};
-
-	return retval;
-}
-
-asmlinkage int irix_swapctl(int cmd, char __user *arg)
-{
-	printk("[%s:%d] Wheee.. irix_swapctl(%d,%p)\n",
-	       current->comm, current->pid, cmd, arg);
-
-	return -EINVAL;
-}
-
-struct irix_statvfs {
-	u32 f_bsize; u32 f_frsize; u32 f_blocks;
-	u32 f_bfree; u32 f_bavail; u32 f_files; u32 f_ffree; u32 f_favail;
-	u32 f_fsid; char f_basetype[16];
-	u32 f_flag; u32 f_namemax;
-	char	f_fstr[32]; u32 f_filler[16];
-};
-
-asmlinkage int irix_statvfs(char __user *fname, struct irix_statvfs __user *buf)
-{
-	struct nameidata nd;
-	struct kstatfs kbuf;
-	int error, i;
-
-	printk("[%s:%d] Wheee.. irix_statvfs(%s,%p)\n",
-	       current->comm, current->pid, fname, buf);
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
-		return -EFAULT;
-
-	error = user_path_walk(fname, &nd);
-	if (error)
-		goto out;
-	error = vfs_statfs(nd.path.dentry, &kbuf);
-	if (error)
-		goto dput_and_out;
-
-	error |= __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-	error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-	error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-	error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-	for (i = 0; i < 16; i++)
-		error |= __put_user(0, &buf->f_basetype[i]);
-	error |= __put_user(0, &buf->f_flag);
-	error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-	for (i = 0; i < 32; i++)
-		error |= __put_user(0, &buf->f_fstr[i]);
-
-dput_and_out:
-	path_put(&nd.path);
-out:
-	return error;
-}
-
-asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs __user *buf)
-{
-	struct kstatfs kbuf;
-	struct file *file;
-	int error, i;
-
-	printk("[%s:%d] Wheee.. irix_fstatvfs(%d,%p)\n",
-	       current->comm, current->pid, fd, buf);
-
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs)))
-		return -EFAULT;
-
-	if (!(file = fget(fd))) {
-		error = -EBADF;
-		goto out;
-	}
-	error = vfs_statfs(file->f_path.dentry, &kbuf);
-	if (error)
-		goto out_f;
-
-	error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bavail); /* XXX hackety hack... */
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-	error |= __put_user(kbuf.f_ffree, &buf->f_favail); /* XXX hackety hack... */
-#ifdef __MIPSEB__
-	error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-	error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-	for(i = 0; i < 16; i++)
-		error |= __put_user(0, &buf->f_basetype[i]);
-	error |= __put_user(0, &buf->f_flag);
-	error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-	error |= __clear_user(&buf->f_fstr, sizeof(buf->f_fstr)) ? -EFAULT : 0;
-
-out_f:
-	fput(file);
-out:
-	return error;
-}
-
-asmlinkage int irix_priocntl(struct pt_regs *regs)
-{
-	printk("[%s:%d] Wheee.. irix_priocntl()\n",
-	       current->comm, current->pid);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_sigqueue(int pid, int sig, int code, int val)
-{
-	printk("[%s:%d] Wheee.. irix_sigqueue(%d,%d,%d,%d)\n",
-	       current->comm, current->pid, pid, sig, code, val);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_truncate64(char __user *name, int pad, int size1, int size2)
-{
-	int retval;
-
-	if (size1) {
-		retval = -EINVAL;
-		goto out;
-	}
-	retval = sys_truncate(name, size2);
-
-out:
-	return retval;
-}
-
-asmlinkage int irix_ftruncate64(int fd, int pad, int size1, int size2)
-{
-	int retval;
-
-	if (size1) {
-		retval = -EINVAL;
-		goto out;
-	}
-	retval = sys_ftruncate(fd, size2);
-
-out:
-	return retval;
-}
-
-asmlinkage int irix_mmap64(struct pt_regs *regs)
-{
-	int len, prot, flags, fd, off1, off2, error, base = 0;
-	unsigned long addr, pgoff, *sp;
-	struct file *file = NULL;
-	int err;
-
-	if (regs->regs[2] == 1000)
-		base = 1;
-	sp = (unsigned long *) (regs->regs[29] + 16);
-	addr = regs->regs[base + 4];
-	len = regs->regs[base + 5];
-	prot = regs->regs[base + 6];
-	if (!base) {
-		flags = regs->regs[base + 7];
-		if (!access_ok(VERIFY_READ, sp, (4 * sizeof(unsigned long))))
-			return -EFAULT;
-		fd = sp[0];
-		err = __get_user(off1, &sp[1]);
-		err |= __get_user(off2, &sp[2]);
-	} else {
-		if (!access_ok(VERIFY_READ, sp, (5 * sizeof(unsigned long))))
-			return -EFAULT;
-		err = __get_user(flags, &sp[0]);
-		err |= __get_user(fd, &sp[1]);
-		err |= __get_user(off1, &sp[2]);
-		err |= __get_user(off2, &sp[3]);
-	}
-
-	if (err)
-		return err;
-
-	if (off1 & PAGE_MASK)
-		return -EOVERFLOW;
-
-	pgoff = (off1 << (32 - PAGE_SHIFT)) | (off2 >> PAGE_SHIFT);
-
-	if (!(flags & MAP_ANONYMOUS)) {
-		if (!(file = fget(fd)))
-			return -EBADF;
-
-		/* Ok, bad taste hack follows, try to think in something else
-		   when reading this */
-		if (flags & IRIX_MAP_AUTOGROW) {
-			unsigned long old_pos;
-			long max_size = off2 + len;
-
-			if (max_size > file->f_path.dentry->d_inode->i_size) {
-				old_pos = sys_lseek(fd, max_size - 1, 0);
-				sys_write(fd, (void __user *) "", 1);
-				sys_lseek(fd, old_pos, 0);
-			}
-		}
-	}
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-
-	return error;
-}
-
-asmlinkage int irix_dmi(struct pt_regs *regs)
-{
-	printk("[%s:%d] Wheee.. irix_dmi()\n",
-	       current->comm, current->pid);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_pread(int fd, char __user *buf, int cnt, int off64,
-			  int off1, int off2)
-{
-	printk("[%s:%d] Wheee.. irix_pread(%d,%p,%d,%d,%d,%d)\n",
-	       current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_pwrite(int fd, char __user *buf, int cnt, int off64,
-			   int off1, int off2)
-{
-	printk("[%s:%d] Wheee.. irix_pwrite(%d,%p,%d,%d,%d,%d)\n",
-	       current->comm, current->pid, fd, buf, cnt, off64, off1, off2);
-
-	return -EINVAL;
-}
-
-asmlinkage int irix_sgifastpath(int cmd, unsigned long arg0, unsigned long arg1,
-				unsigned long arg2, unsigned long arg3,
-				unsigned long arg4, unsigned long arg5)
-{
-	printk("[%s:%d] Wheee.. irix_fastpath(%d,%08lx,%08lx,%08lx,%08lx,"
-	       "%08lx,%08lx)\n",
-	       current->comm, current->pid, cmd, arg0, arg1, arg2,
-	       arg3, arg4, arg5);
-
-	return -EINVAL;
-}
-
-struct irix_statvfs64 {
-	u32  f_bsize; u32 f_frsize;
-	u64  f_blocks; u64 f_bfree; u64 f_bavail;
-	u64  f_files; u64 f_ffree; u64 f_favail;
-	u32  f_fsid;
-	char f_basetype[16];
-	u32  f_flag; u32 f_namemax;
-	char f_fstr[32];
-	u32  f_filler[16];
-};
-
-asmlinkage int irix_statvfs64(char __user *fname, struct irix_statvfs64 __user *buf)
-{
-	struct nameidata nd;
-	struct kstatfs kbuf;
-	int error, i;
-
-	printk("[%s:%d] Wheee.. irix_statvfs64(%s,%p)\n",
-	       current->comm, current->pid, fname, buf);
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs64))) {
-		error = -EFAULT;
-		goto out;
-	}
-
-	error = user_path_walk(fname, &nd);
-	if (error)
-		goto out;
-	error = vfs_statfs(nd.path.dentry, &kbuf);
-	if (error)
-		goto dput_and_out;
-
-	error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-	error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-	error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-	error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-	for(i = 0; i < 16; i++)
-		error |= __put_user(0, &buf->f_basetype[i]);
-	error |= __put_user(0, &buf->f_flag);
-	error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-	for(i = 0; i < 32; i++)
-		error |= __put_user(0, &buf->f_fstr[i]);
-
-dput_and_out:
-	path_put(&nd.path);
-out:
-	return error;
-}
-
-asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs __user *buf)
-{
-	struct kstatfs kbuf;
-	struct file *file;
-	int error, i;
-
-	printk("[%s:%d] Wheee.. irix_fstatvfs64(%d,%p)\n",
-	       current->comm, current->pid, fd, buf);
-
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(struct irix_statvfs))) {
-		error = -EFAULT;
-		goto out;
-	}
-	if (!(file = fget(fd))) {
-		error = -EBADF;
-		goto out;
-	}
-	error = vfs_statfs(file->f_path.dentry, &kbuf);
-	if (error)
-		goto out_f;
-
-	error = __put_user(kbuf.f_bsize, &buf->f_bsize);
-	error |= __put_user(kbuf.f_frsize, &buf->f_frsize);
-	error |= __put_user(kbuf.f_blocks, &buf->f_blocks);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bfree);
-	error |= __put_user(kbuf.f_bfree, &buf->f_bavail);  /* XXX hackety hack... */
-	error |= __put_user(kbuf.f_files, &buf->f_files);
-	error |= __put_user(kbuf.f_ffree, &buf->f_ffree);
-	error |= __put_user(kbuf.f_ffree, &buf->f_favail);  /* XXX hackety hack... */
-#ifdef __MIPSEB__
-	error |= __put_user(kbuf.f_fsid.val[1], &buf->f_fsid);
-#else
-	error |= __put_user(kbuf.f_fsid.val[0], &buf->f_fsid);
-#endif
-	for(i = 0; i < 16; i++)
-		error |= __put_user(0, &buf->f_basetype[i]);
-	error |= __put_user(0, &buf->f_flag);
-	error |= __put_user(kbuf.f_namelen, &buf->f_namemax);
-	error |= __clear_user(buf->f_fstr, sizeof(buf->f_fstr[i])) ? -EFAULT : 0;
-
-out_f:
-	fput(file);
-out:
-	return error;
-}
-
-asmlinkage int irix_getmountid(char __user *fname, unsigned long __user *midbuf)
-{
-	int err;
-
-	printk("[%s:%d] irix_getmountid(%s, %p)\n",
-	       current->comm, current->pid, fname, midbuf);
-	if (!access_ok(VERIFY_WRITE, midbuf, (sizeof(unsigned long) * 4)))
-		return -EFAULT;
-
-	/*
-	 * The idea with this system call is that when trying to determine
-	 * 'pwd' and it's a toss-up for some reason, userland can use the
-	 * fsid of the filesystem to try and make the right decision, but
-	 * we don't have this so for now. XXX
-	 */
-	err = __put_user(0, &midbuf[0]);
-	err |= __put_user(0, &midbuf[1]);
-	err |= __put_user(0, &midbuf[2]);
-	err |= __put_user(0, &midbuf[3]);
-
-	return err;
-}
-
-asmlinkage int irix_nsproc(unsigned long entry, unsigned long mask,
-			   unsigned long arg, unsigned long sp, int slen)
-{
-	printk("[%s:%d] Wheee.. irix_nsproc(%08lx,%08lx,%08lx,%08lx,%d)\n",
-	       current->comm, current->pid, entry, mask, arg, sp, slen);
-
-	return -EINVAL;
-}
-
-#undef DEBUG_GETDENTS
-
-struct irix_dirent32 {
-	u32  d_ino;
-	u32  d_off;
-	unsigned short  d_reclen;
-	char d_name[1];
-};
-
-struct irix_dirent32_callback {
-	struct irix_dirent32 __user *current_dir;
-	struct irix_dirent32 __user *previous;
-	int count;
-	int error;
-};
-
-#define NAME_OFFSET32(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP32(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
-
-static int irix_filldir32(void *__buf, const char *name,
-	int namlen, loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct irix_dirent32 __user *dirent;
-	struct irix_dirent32_callback *buf = __buf;
-	unsigned short reclen = ROUND_UP32(NAME_OFFSET32(dirent) + namlen + 1);
-	int err = 0;
-	u32 d_ino;
-
-#ifdef DEBUG_GETDENTS
-	printk("\nirix_filldir32[reclen<%d>namlen<%d>count<%d>]",
-	       reclen, namlen, buf->count);
-#endif
-	buf->error = -EINVAL;	/* only used if we fail.. */
-	if (reclen > buf->count)
-		return -EINVAL;
-	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
-		return -EOVERFLOW;
-	dirent = buf->previous;
-	if (dirent)
-		err = __put_user(offset, &dirent->d_off);
-	dirent = buf->current_dir;
-	err |= __put_user(dirent, &buf->previous);
-	err |= __put_user(d_ino, &dirent->d_ino);
-	err |= __put_user(reclen, &dirent->d_reclen);
-	err |= copy_to_user((char __user *)dirent->d_name, name, namlen) ? -EFAULT : 0;
-	err |= __put_user(0, &dirent->d_name[namlen]);
-	dirent = (struct irix_dirent32 __user *) ((char __user *) dirent + reclen);
-
-	buf->current_dir = dirent;
-	buf->count -= reclen;
-
-	return err;
-}
-
-asmlinkage int irix_ngetdents(unsigned int fd, void __user * dirent,
-	unsigned int count, int __user *eob)
-{
-	struct file *file;
-	struct irix_dirent32 __user *lastdirent;
-	struct irix_dirent32_callback buf;
-	int error;
-
-#ifdef DEBUG_GETDENTS
-	printk("[%s:%d] ngetdents(%d, %p, %d, %p) ", current->comm,
-	       current->pid, fd, dirent, count, eob);
-#endif
-	error = -EBADF;
-	file = fget(fd);
-	if (!file)
-		goto out;
-
-	buf.current_dir = (struct irix_dirent32 __user *) dirent;
-	buf.previous = NULL;
-	buf.count = count;
-	buf.error = 0;
-
-	error = vfs_readdir(file, irix_filldir32, &buf);
-	if (error < 0)
-		goto out_putf;
-
-	error = buf.error;
-	lastdirent = buf.previous;
-	if (lastdirent) {
-		put_user(file->f_pos, &lastdirent->d_off);
-		error = count - buf.count;
-	}
-
-	if (put_user(0, eob) < 0) {
-		error = -EFAULT;
-		goto out_putf;
-	}
-
-#ifdef DEBUG_GETDENTS
-	printk("eob=%d returning %d\n", *eob, count - buf.count);
-#endif
-	error = count - buf.count;
-
-out_putf:
-	fput(file);
-out:
-	return error;
-}
-
-struct irix_dirent64 {
-	u64            d_ino;
-	u64            d_off;
-	unsigned short d_reclen;
-	char           d_name[1];
-};
-
-struct irix_dirent64_callback {
-	struct irix_dirent64 __user *curr;
-	struct irix_dirent64 __user *previous;
-	int count;
-	int error;
-};
-
-#define NAME_OFFSET64(de) ((int) ((de)->d_name - (char *) (de)))
-#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
-
-static int irix_filldir64(void *__buf, const char *name,
-	int namlen, loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct irix_dirent64 __user *dirent;
-	struct irix_dirent64_callback * buf = __buf;
-	unsigned short reclen = ROUND_UP64(NAME_OFFSET64(dirent) + namlen + 1);
-	int err = 0;
-
-	if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
-		return -EFAULT;
-
-	if (__put_user(-EINVAL, &buf->error))	/* only used if we fail.. */
-		return -EFAULT;
-	if (reclen > buf->count)
-		return -EINVAL;
-	dirent = buf->previous;
-	if (dirent)
-		err = __put_user(offset, &dirent->d_off);
-	dirent = buf->curr;
-	buf->previous = dirent;
-	err |= __put_user(ino, &dirent->d_ino);
-	err |= __put_user(reclen, &dirent->d_reclen);
-	err |= __copy_to_user((char __user *)dirent->d_name, name, namlen)
-	       ? -EFAULT : 0;
-	err |= __put_user(0, &dirent->d_name[namlen]);
-
-	dirent = (struct irix_dirent64 __user *) ((char __user *) dirent + reclen);
-
-	buf->curr = dirent;
-	buf->count -= reclen;
-
-	return err;
-}
-
-asmlinkage int irix_getdents64(int fd, void __user *dirent, int cnt)
-{
-	struct file *file;
-	struct irix_dirent64 __user *lastdirent;
-	struct irix_dirent64_callback buf;
-	int error;
-
-#ifdef DEBUG_GETDENTS
-	printk("[%s:%d] getdents64(%d, %p, %d) ", current->comm,
-	       current->pid, fd, dirent, cnt);
-#endif
-	error = -EBADF;
-	if (!(file = fget(fd)))
-		goto out;
-
-	error = -EFAULT;
-	if (!access_ok(VERIFY_WRITE, dirent, cnt))
-		goto out_f;
-
-	error = -EINVAL;
-	if (cnt < (sizeof(struct irix_dirent64) + 255))
-		goto out_f;
-
-	buf.curr = (struct irix_dirent64 __user *) dirent;
-	buf.previous = NULL;
-	buf.count = cnt;
-	buf.error = 0;
-	error = vfs_readdir(file, irix_filldir64, &buf);
-	if (error < 0)
-		goto out_f;
-	lastdirent = buf.previous;
-	if (!lastdirent) {
-		error = buf.error;
-		goto out_f;
-	}
-	if (put_user(file->f_pos, &lastdirent->d_off))
-		return -EFAULT;
-#ifdef DEBUG_GETDENTS
-	printk("returning %d\n", cnt - buf.count);
-#endif
-	error = cnt - buf.count;
-
-out_f:
-	fput(file);
-out:
-	return error;
-}
-
-asmlinkage int irix_ngetdents64(int fd, void __user *dirent, int cnt, int *eob)
-{
-	struct file *file;
-	struct irix_dirent64 __user *lastdirent;
-	struct irix_dirent64_callback buf;
-	int error;
-
-#ifdef DEBUG_GETDENTS
-	printk("[%s:%d] ngetdents64(%d, %p, %d) ", current->comm,
-	       current->pid, fd, dirent, cnt);
-#endif
-	error = -EBADF;
-	if (!(file = fget(fd)))
-		goto out;
-
-	error = -EFAULT;
-	if (!access_ok(VERIFY_WRITE, dirent, cnt) ||
-	    !access_ok(VERIFY_WRITE, eob, sizeof(*eob)))
-		goto out_f;
-
-	error = -EINVAL;
-	if (cnt < (sizeof(struct irix_dirent64) + 255))
-		goto out_f;
-
-	*eob = 0;
-	buf.curr = (struct irix_dirent64 __user *) dirent;
-	buf.previous = NULL;
-	buf.count = cnt;
-	buf.error = 0;
-	error = vfs_readdir(file, irix_filldir64, &buf);
-	if (error < 0)
-		goto out_f;
-	lastdirent = buf.previous;
-	if (!lastdirent) {
-		error = buf.error;
-		goto out_f;
-	}
-	if (put_user(file->f_pos, &lastdirent->d_off))
-		return -EFAULT;
-#ifdef DEBUG_GETDENTS
-	printk("eob=%d returning %d\n", *eob, cnt - buf.count);
-#endif
-	error = cnt - buf.count;
-
-out_f:
-	fput(file);
-out:
-	return error;
-}
-
-asmlinkage int irix_uadmin(unsigned long op, unsigned long func, unsigned long arg)
-{
-	int retval;
-
-	switch (op) {
-	case 1:
-		/* Reboot */
-		printk("[%s:%d] irix_uadmin: Wants to reboot...\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 2:
-		/* Shutdown */
-		printk("[%s:%d] irix_uadmin: Wants to shutdown...\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 4:
-		/* Remount-root */
-		printk("[%s:%d] irix_uadmin: Wants to remount root...\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 8:
-		/* Kill all tasks. */
-		printk("[%s:%d] irix_uadmin: Wants to kill all tasks...\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 256:
-		/* Set magic mushrooms... */
-		printk("[%s:%d] irix_uadmin: Wants to set magic mushroom[%d]...\n",
-		       current->comm, current->pid, (int) func);
-		retval = -EINVAL;
-		goto out;
-
-	default:
-		printk("[%s:%d] irix_uadmin: Unknown operation [%d]...\n",
-		       current->comm, current->pid, (int) op);
-		retval = -EINVAL;
-		goto out;
-	};
-
-out:
-	return retval;
-}
-
-asmlinkage int irix_utssys(char __user *inbuf, int arg, int type, char __user *outbuf)
-{
-	int retval;
-
-	switch(type) {
-	case 0:
-		/* uname() */
-		retval = irix_uname((struct iuname __user *)inbuf);
-		goto out;
-
-	case 2:
-		/* ustat() */
-		printk("[%s:%d] irix_utssys: Wants to do ustat()\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 3:
-		/* fusers() */
-		printk("[%s:%d] irix_utssys: Wants to do fusers()\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	default:
-		printk("[%s:%d] irix_utssys: Wants to do unknown type[%d]\n",
-		       current->comm, current->pid, (int) type);
-		retval = -EINVAL;
-		goto out;
-	}
-
-out:
-	return retval;
-}
-
-#undef DEBUG_FCNTL
-
-#define IRIX_F_ALLOCSP 10
-
-asmlinkage int irix_fcntl(int fd, int cmd, int arg)
-{
-	int retval;
-
-#ifdef DEBUG_FCNTL
-	printk("[%s:%d] irix_fcntl(%d, %d, %d) ", current->comm,
-	       current->pid, fd, cmd, arg);
-#endif
-	if (cmd == IRIX_F_ALLOCSP){
-		return 0;
-	}
-	retval = sys_fcntl(fd, cmd, arg);
-#ifdef DEBUG_FCNTL
-	printk("%d\n", retval);
-#endif
-	return retval;
-}
-
-asmlinkage int irix_ulimit(int cmd, int arg)
-{
-	int retval;
-
-	switch(cmd) {
-	case 1:
-		printk("[%s:%d] irix_ulimit: Wants to get file size limit.\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 2:
-		printk("[%s:%d] irix_ulimit: Wants to set file size limit.\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 3:
-		printk("[%s:%d] irix_ulimit: Wants to get brk limit.\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	case 4:
-#if 0
-		printk("[%s:%d] irix_ulimit: Wants to get fd limit.\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-#endif
-		retval = current->signal->rlim[RLIMIT_NOFILE].rlim_cur;
-		goto out;
-
-	case 5:
-		printk("[%s:%d] irix_ulimit: Wants to get txt offset.\n",
-		       current->comm, current->pid);
-		retval = -EINVAL;
-		goto out;
-
-	default:
-		printk("[%s:%d] irix_ulimit: Unknown command [%d].\n",
-		       current->comm, current->pid, cmd);
-		retval = -EINVAL;
-		goto out;
-	}
-out:
-	return retval;
-}
-
-asmlinkage int irix_unimp(struct pt_regs *regs)
-{
-	printk("irix_unimp [%s:%d] v0=%d v1=%d a0=%08lx a1=%08lx a2=%08lx "
-	       "a3=%08lx\n", current->comm, current->pid,
-	       (int) regs->regs[2], (int) regs->regs[3],
-	       regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
-
-	return -ENOSYS;
-}

include/asm-mips/inventory.h

···
-/*
- * Miguel de Icaza
- */
-#ifndef __ASM_INVENTORY_H
-#define __ASM_INVENTORY_H
-
-#include <linux/compiler.h>
-
-typedef struct inventory_s {
-	struct inventory_s *inv_next;
-	int    inv_class;
-	int    inv_type;
-	int    inv_controller;
-	int    inv_unit;
-	int    inv_state;
-} inventory_t;
-
-extern int inventory_items;
-
-extern void add_to_inventory(int class, int type, int controller, int unit, int state);
-extern int dump_inventory_to_user(void __user *userbuf, int size);
-extern int __init init_inventory(void);
-
-#endif /* __ASM_INVENTORY_H */

include/asm-mips/namei.h

···
 #ifndef _ASM_NAMEI_H
 #define _ASM_NAMEI_H
 
-#include <linux/personality.h>
-#include <linux/stddef.h>
+/*
+ * This dummy routine maybe changed to something useful
+ * for /usr/gnemul/ emulation stuff.
+ */
 
-#define IRIX_EMUL	"/usr/gnemul/irix/"
-#define RISCOS_EMUL	"/usr/gnemul/riscos/"
-
-static inline char *__emul_prefix(void)
-{
-	switch (current->personality) {
-	case PER_IRIX32:
-	case PER_IRIXN32:
-	case PER_IRIX64:
-		return IRIX_EMUL;
-
-	case PER_RISCOS:
-		return RISCOS_EMUL;
-
-	default:
-		return NULL;
-	}
-}
+#define __emul_prefix() NULL
 
 #endif /* _ASM_NAMEI_H */

include/asm-mips/prctl.h

···
-/*
- * IRIX prctl interface
- *
- * The IRIX kernel maps a page at PRDA_ADDRESS with the
- * contents of prda and fills it the bits on prda_sys.
- */
-
-#ifndef __PRCTL_H__
-#define __PRCTL_H__
-
-#define PRDA_ADDRESS 0x200000L
-#define PRDA ((struct prda *) PRDA_ADDRESS)
-
-struct prda_sys {
-	pid_t t_pid;
-        u32   t_hint;
-        u32   t_dlactseq;
-        u32   t_fpflags;
-        u32   t_prid;		/* processor type, $prid CP0 register */
-        u32   t_dlendseq;
-        u64   t_unused1[5];
-        pid_t t_rpid;
-        s32   t_resched;
-        u32   t_unused[8];
-        u32   t_cpu;		/* current/last cpu */
-
-	/* FIXME: The signal information, not supported by Linux now */
-	u32   t_flags;		/* if true, then the sigprocmask is in userspace */
-	u32   t_sigprocmask [1]; /* the sigprocmask */
-};
-
-struct prda {
-	char fill [0xe00];
-	struct prda_sys prda_sys;
-};
-
-#define t_sys           prda_sys
-
-ptrdiff_t prctl(int op, int v1, int v2);
-
-#endif

include/asm-mips/signal.h

···
 
 struct k_sigaction {
 	struct sigaction sa;
-#ifdef CONFIG_BINFMT_IRIX
-	void		(*sa_restorer)(void);
-#endif
 };
 
 /* IRIX compatible stack_t  */