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Commit 2957c9e6 authored by Ralf Baechle's avatar Ralf Baechle
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[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: default avatarRalf Baechle <ralf@linux-mips.org>
parent 99728851
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Showing with 5 additions and 5843 deletions
arch/mips/Kconfig
View file @ 2957c9e6
......@@ -2064,10 +2064,6 @@ source "fs/Kconfig.binfmt"
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
View file @ 2957c9e6
......@@ -20,9 +20,6 @@ obj-$(CONFIG_CSRC_R4K) += csrc-r4k.o
obj-$(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-$(CONFIG_MODULES) += mips_ksyms.o module.o
......@@ -70,7 +67,6 @@ obj-$(CONFIG_IRQ_GIC) += irq-gic.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 deleted 100644 → 0
View file @ 99728851
/*
* 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 <dm@engr.sgi.com>
* Copyright (C) 2004 Steven J. Hill <sjhill@realitydiluted.com>
*/
#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
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sys irix_unimp 0
sys irix_unimp 0
sys irix_unimp 0
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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 deleted 100644 → 0
View file @ 99728851
/*
* 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 <ericy@cais.com>
* Copyright (C) 1996 - 2004 David S. Miller <dm@engr.sgi.com>
* Copyright (C) 2004 - 2005 Steven J. Hill <sjhill@realitydiluted.com>
*/
#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 <jeremy@sw.oz.au>
*/
/* 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 deleted 100644 → 0
View file @ 99728851
/*
* 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 deleted 100644 → 0
View file @ 99728851
/*
* irixioctl.c: A fucking mess...
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
*/
#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 linux-mips@linux-mips.org\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 deleted 100644 → 0
View file @ 99728851
/*
* irixsig.c: WHEEE, IRIX signals! YOW, am I compatible or what?!?!
*
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
* Copyright (C) 1997 - 2000 Ralf Baechle (ralf@gnu.org)
* 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
View file @ 2957c9e6
......@@ -125,13 +125,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
*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
View file @ 2957c9e6
......@@ -34,12 +34,8 @@ NESTED(handle_sys, PT_SIZE, sp)
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
......@@ -264,22 +260,14 @@ bad_alignment:
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
......@@ -324,13 +312,6 @@ einval: li v0, -EINVAL
.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 deleted 100644 → 0
View file @ 99728851
/*
* 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 deleted 100644 → 0
View file @ 99728851
/*
* 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
View file @ 2957c9e6
#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 deleted 100644 → 0
View file @ 99728851
/*
* 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
View file @ 2957c9e6
......@@ -119,9 +119,6 @@ struct sigaction {
struct k_sigaction {
struct sigaction sa;
#ifdef CONFIG_BINFMT_IRIX
void (*sa_restorer)(void);
#endif
};
/* IRIX compatible stack_t */
......
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