linux32.c revision dbda6ac0897603f6c6dfadbbc37f9882177ec7ac
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Conversion between 32-bit and 64-bit native system calls. 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000 Silicon Graphics, Inc. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Written by Ulf Carlsson (ulfc@engr.sgi.com) 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sys32_execve from ia64/ia32 code, Feb 2000, Kanoj Sarcar (kanoj@sgi.com) 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compiler.h> 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/mm.h> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/errno.h> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/file.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/smp_lock.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/highuid.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/resource.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/highmem.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/time.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/times.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/poll.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/skbuff.h> 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/filter.h> 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/shm.h> 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sem.h> 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/msg.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/icmpv6.h> 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/syscalls.h> 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/sysctl.h> 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/utime.h> 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/utsname.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/personality.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dnotify.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/binfmts.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/security.h> 35dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle#include <linux/syscalls.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/compat.h> 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/vfs.h> 38cba4fbbff2e9722e93b28e18fa7714b9013cbddaAdrian Bunk#include <linux/ipc.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/sock.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <net/scm.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 43431dc8040354db65e4f8d4d4e21ae4fab41f5bc3Ralf Baechle#include <asm/compat-signal.h> 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/sim.h> 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/uaccess.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/mmu_context.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/mman.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* Use this to get at 32-bit user passed pointers. */ 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* A() macro should be used for places where you e.g. 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds have some internal variable u32 and just want to get 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds rid of a compiler warning. AA() has to be used in 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds places where you want to convert a function argument 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds to 32bit pointer or when you e.g. access pt_regs 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds structure and want to consider 32bit registers only. 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define A(__x) ((unsigned long)(__x)) 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define AA(__x) ((unsigned long)((int)__x)) 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __MIPSEB__ 6121a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle#define merge_64(r1, r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL)) 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __MIPSEL__ 6421a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL)) 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 67dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_mmap2, unsigned long, addr, unsigned long, len, 68dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, prot, unsigned long, flags, unsigned long, fd, 69dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, pgoff) 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct file * file = NULL; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long error; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EINVAL; 75947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin if (pgoff & (~PAGE_MASK >> 12)) 76947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin goto out; 77947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin pgoff >>= PAGE_SHIFT-12; 78947df17cb1be4c7239280a77263c249fde1379efH. Peter Anvin 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(flags & MAP_ANONYMOUS)) { 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EBADF; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds file = fget(fd); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!file) 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down_write(¤t->mm->mmap_sem); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up_write(¤t->mm->mmap_sem); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (file) 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fput(file); 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sys_execve() executes a new program. 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsasmlinkage int sys32_execve(nabi_no_regargs struct pt_regs regs) 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char * filename; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds filename = getname(compat_ptr(regs.regs[4])); 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = PTR_ERR(filename); 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (IS_ERR(filename)) 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = compat_do_execve(filename, compat_ptr(regs.regs[5]), 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_ptr(regs.regs[6]), ®s); 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds putname(filename); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RLIM_INFINITY32 0x7fffffff 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x) 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct rlimit32 { 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rlim_cur; 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int rlim_max; 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 125dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_truncate64, const char __user *, path, 126dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, __dummy, unsigned long, a2, unsigned long, a3) 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 128d4e9cffa161da806cb4bc9df4a4e49d287156bfaRalf Baechle return sys_truncate(path, merge_64(a2, a3)); 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 131dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy, 132dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, a2, unsigned long, a3) 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 134d4e9cffa161da806cb4bc9df4a4e49d287156bfaRalf Baechle return sys_ftruncate(fd, merge_64(a2, a3)); 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 137dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high, 138dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, offset_low, loff_t __user *, result, 139dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, origin) 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sys_llseek(fd, offset_high, offset_low, result, origin); 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op + 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lseek back to original location. They fail just like lseek does on 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds non-seekable files. */ 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 148dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count, 149dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, unused, unsigned long, a4, unsigned long, a5) 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1516ad0013b316367671ef316cff91ab2d912e309c9Al Viro return sys_pread64(fd, buf, count, merge_64(a4, a5)); 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 154dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf, 155dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle size_t, count, u32, unused, u64, a4, u64, a5) 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1576ad0013b316367671ef316cff91ab2d912e309c9Al Viro return sys_pwrite64(fd, buf, count, merge_64(a4, a5)); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 160dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE2(32_sched_rr_get_interval, compat_pid_t, pid, 161dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle struct compat_timespec __user *, interval) 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct timespec t; 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 16549a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle mm_segment_t old_fs = get_fs(); 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 16749a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle set_fs(KERNEL_DS); 168219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); 16949a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle set_fs(old_fs); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (put_user (t.tv_sec, &interval->tv_sec) || 17149a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle __put_user(t.tv_nsec, &interval->tv_nsec)) 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 17665f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#ifdef CONFIG_SYSVIPC 17765f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 178dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third, 179dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle unsigned long, ptr, unsigned long, fifth) 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int version, err; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds version = call >> 16; /* hack for backward compatibility */ 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds call &= 0xffff; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (call) { 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMOP: 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* struct sembuf is the same on 32 and 64bit :)) */ 18905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_semtimedop(first, compat_ptr(ptr), second, NULL); 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMTIMEDOP: 19205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_semtimedop(first, compat_ptr(ptr), second, 19305e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto compat_ptr(fifth)); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMGET: 19605e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_semget(first, second, third); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SEMCTL: 19905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_semctl(first, second, third, compat_ptr(ptr)); 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGSND: 20205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr)); 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGRCV: 20505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgrcv(first, second, fifth, third, 20605e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto version, compat_ptr(ptr)); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGGET: 20905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_msgget((key_t) first, second); 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case MSGCTL: 21205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_msgctl(first, second, compat_ptr(ptr)); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMAT: 21505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_shmat(first, second, third, version, 21605e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto compat_ptr(ptr)); 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMDT: 21905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_shmdt(compat_ptr(ptr)); 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMGET: 22205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = sys_shmget(first, (unsigned)second, third); 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case SHMCTL: 22505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto err = compat_sys_shmctl(first, second, compat_ptr(ptr)); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds default: 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -EINVAL; 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 23565f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#else 23665f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 237dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third, 238dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle u32, ptr, u32 fifth) 23965f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle{ 24065f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle return -ENOSYS; 24165f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle} 24265f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 24365f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle#endif /* CONFIG_SYSVIPC */ 24465f8ebe0630ffadce19a3ed11c7eb41bc6cfabceRalf Baechle 24505e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto#ifdef CONFIG_MIPS32_N32 246dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg) 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 24805e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto /* compat_sys_semctl expects a pointer to union semun */ 24905e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto u32 __user *uptr = compat_alloc_user_space(sizeof(u32)); 250e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto if (put_user(arg, uptr)) 25105e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto return -EFAULT; 25205e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto return compat_sys_semctl(semid, semnum, cmd, uptr); 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 254e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto 255dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz, 256dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle int, msgflg) 257e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto{ 258e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp)); 259e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto} 260e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto 261dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, 262dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle int, msgtyp, int, msgflg) 263e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto{ 264e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64, 265e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto compat_ptr(msgp)); 266e16d8df0be26c8e82c4a1188af8143f2d466b12aAtsushi Nemoto} 26705e4396651ca1cac51d8da9ff4992741c9dc1e39Atsushi Nemoto#endif 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct sysctl_args32 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_caddr_t name; 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int nlen; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_caddr_t oldval; 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_caddr_t oldlenp; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_caddr_t newval; 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_size_t newlen; 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int __unused[4]; 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 280b89a81712f486e4f7a606987413e387605fdeaf4Eric W. Biederman#ifdef CONFIG_SYSCTL_SYSCALL 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 282dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args) 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct sysctl_args32 tmp; 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 286219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto size_t oldlen; 287219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto size_t __user *oldlenp = NULL; 288219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_from_user(&tmp, args, sizeof(tmp))) 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tmp.oldval && tmp.oldlenp) { 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Duh, this is ugly and might not work if sysctl_args 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds is in read-only memory, but do_sysctl does indirectly 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds a lot of uaccess in both directions and we'd have to 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds basically copy the whole sysctl.c here, and 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds glibc's __sysctl uses rw memory for the structure 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds anyway. */ 300219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto if (get_user(oldlen, (u32 __user *)A(tmp.oldlenp)) || 301219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto put_user(oldlen, (size_t __user *)addr)) 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 303219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto oldlenp = (size_t __user *)addr; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds lock_kernel(); 307219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto error = do_sysctl((int __user *)A(tmp.name), tmp.nlen, (void __user *)A(tmp.oldval), 308219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto oldlenp, (void __user *)A(tmp.newval), tmp.newlen); 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unlock_kernel(); 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (oldlenp) { 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!error) { 312219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto if (get_user(oldlen, (size_t __user *)addr) || 313219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto put_user(oldlen, (u32 __user *)A(tmp.oldlenp))) 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds error = -EFAULT; 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)); 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return error; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 321dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle#else 322dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle 323dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE1(32_sysctl, struct sysctl_args32 __user *, args) 324dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle{ 325dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle return -ENOSYS; 326dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle} 327dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle 328b89a81712f486e4f7a606987413e387605fdeaf4Eric W. Biederman#endif /* CONFIG_SYSCTL_SYSCALL */ 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 330dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret = 0; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds down_read(&uts_sem); 335e9ff3990f08e9a0c2839cc22808b01732ea5b3e4Serge E. Hallyn if (copy_to_user(name, utsname(), sizeof *name)) 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = -EFAULT; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds up_read(&uts_sem); 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (current->personality == PER_LINUX32 && !ret) 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (copy_to_user(name->machine, "mips\0\0\0", 8)) 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = -EFAULT; 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 346dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE1(32_personality, unsigned long, personality) 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 34953571ce47010562f5e67782ea00206f379a5cd65Thiemo Seufer personality &= 0xffffffff; 35053571ce47010562f5e67782ea00206f379a5cd65Thiemo Seufer if (personality(current->personality) == PER_LINUX32 && 35153571ce47010562f5e67782ea00206f379a5cd65Thiemo Seufer personality == PER_LINUX) 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds personality = PER_LINUX32; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = sys_personality(personality); 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret == PER_LINUX32) 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = PER_LINUX; 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* ustat compatibility */ 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct ustat32 { 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_daddr_t f_tfree; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds compat_ino_t f_tinode; 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char f_fname[6]; 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char f_fpack[6]; 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 367219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemotoextern asmlinkage long sys_ustat(dev_t dev, struct ustat __user * ubuf); 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 369dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE2(32_ustat, dev_t, dev, struct ustat32 __user *, ubuf32) 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 372e0daad449c5195fa4552c60392eeee4e5c58d31cRalf Baechle struct ustat tmp; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ustat32 tmp32; 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mm_segment_t old_fs = get_fs(); 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fs(KERNEL_DS); 377219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto err = sys_ustat(dev, (struct ustat __user *)&tmp); 37849a89efbbbcc178a39555c43bd59a7593c429664Ralf Baechle set_fs(old_fs); 3791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) 3811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38321a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle memset(&tmp32, 0, sizeof(struct ustat32)); 384e0daad449c5195fa4552c60392eeee4e5c58d31cRalf Baechle tmp32.f_tfree = tmp.f_tfree; 385e0daad449c5195fa4552c60392eeee4e5c58d31cRalf Baechle tmp32.f_tinode = tmp.f_tinode; 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38721a151d8ca3aa74ee79f9791a9d4dc370d3e0636Ralf Baechle err = copy_to_user(ubuf32, &tmp32, sizeof(struct ustat32)) ? -EFAULT : 0; 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 393dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf BaechleSYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd, 394dbda6ac0897603f6c6dfadbbc37f9882177ec7acRalf Baechle compat_off_t __user *, offset, s32, count) 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mm_segment_t old_fs = get_fs(); 3971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 3981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds off_t of; 39942a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset && get_user(of, offset)) 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 40242a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fs(KERNEL_DS); 404219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count); 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds set_fs(old_fs); 40642a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (offset && put_user(of, offset)) 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EFAULT; 40942a3b4f25af8f8d77feddf27f839fa0628dbff1aRalf Baechle 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsasmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3, 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds size_t count) 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return sys_readahead(fd, merge_64(a2, a3), count); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 419a8d587a71b76328447de165b12495650721b9286Ralf Baechleasmlinkage long sys32_sync_file_range(int fd, int __pad, 420a8d587a71b76328447de165b12495650721b9286Ralf Baechle unsigned long a2, unsigned long a3, 421a8d587a71b76328447de165b12495650721b9286Ralf Baechle unsigned long a4, unsigned long a5, 422a8d587a71b76328447de165b12495650721b9286Ralf Baechle int flags) 423a8d587a71b76328447de165b12495650721b9286Ralf Baechle{ 424a8d587a71b76328447de165b12495650721b9286Ralf Baechle return sys_sync_file_range(fd, 425a8d587a71b76328447de165b12495650721b9286Ralf Baechle merge_64(a2, a3), merge_64(a4, a5), 426a8d587a71b76328447de165b12495650721b9286Ralf Baechle flags); 427a8d587a71b76328447de165b12495650721b9286Ralf Baechle} 428a8d587a71b76328447de165b12495650721b9286Ralf Baechle 4298676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemotoasmlinkage long sys32_fadvise64_64(int fd, int __pad, 4308676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto unsigned long a2, unsigned long a3, 4318676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto unsigned long a4, unsigned long a5, 4328676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto int flags) 4338676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto{ 4348676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto return sys_fadvise64_64(fd, 4358676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto merge_64(a2, a3), merge_64(a4, a5), 4368676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto flags); 4378676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto} 4388676d2e0244cbef294c7d9ad6e50048f9dfba9e0Atsushi Nemoto 4394dc467756e77838c592a6dc797434f11761d33f5Ralf Baechleasmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2, 4404dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle unsigned offset_a3, unsigned len_a4, unsigned len_a5) 4414dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle{ 4424dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle return sys_fallocate(fd, mode, merge_64(offset_a2, offset_a3), 4434dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle merge_64(len_a4, len_a5)); 4444dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle} 4454dc467756e77838c592a6dc797434f11761d33f5Ralf Baechle 4463c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechlesave_static_function(sys32_clone); 447f5dbeaf5ed3938beea8e58ee473982a4bcadc172David Rientjesstatic int noinline __used 4483c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle_sys32_clone(nabi_no_regargs struct pt_regs regs) 4493c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle{ 4503c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle unsigned long clone_flags; 4513c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle unsigned long newsp; 4523c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle int __user *parent_tidptr, *child_tidptr; 4533c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle 4543c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle clone_flags = regs.regs[4]; 4553c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle newsp = regs.regs[5]; 4563c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle if (!newsp) 4573c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle newsp = regs.regs[29]; 458219ac73a7ad17a3ae3d5c07b4fc8c280645a073aAtsushi Nemoto parent_tidptr = (int __user *) regs.regs[6]; 4593c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle 4603c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle /* Use __dummy4 instead of getting it off the stack, so that 4613c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle syscall() works. */ 4623c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle child_tidptr = (int __user *) __dummy4; 4633c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle return do_fork(clone_flags, newsp, ®s, 0, 4643c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle parent_tidptr, child_tidptr); 4653c37026d43c47bec4710cbda286f4a17f416f5e6Ralf Baechle} 466