110 lines
3 KiB
C
110 lines
3 KiB
C
/*
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* sys_parisc32.c: Conversion between 32bit and 64bit native syscalls.
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*
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* Copyright (C) 2000-2001 Hewlett Packard Company
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* Copyright (C) 2000 John Marvin
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* Copyright (C) 2001 Matthew Wilcox
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* environment. Based heavily on sys_ia32.c and sys_sparc32.c.
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*/
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#include <linux/compat.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/fs.h>
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#include <linux/mm.h>
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#include <linux/file.h>
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#include <linux/signal.h>
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#include <linux/resource.h>
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#include <linux/times.h>
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#include <linux/time.h>
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#include <linux/smp.h>
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#include <linux/sem.h>
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#include <linux/shm.h>
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#include <linux/slab.h>
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#include <linux/uio.h>
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#include <linux/ncp_fs.h>
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#include <linux/poll.h>
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#include <linux/personality.h>
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#include <linux/stat.h>
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#include <linux/highmem.h>
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#include <linux/highuid.h>
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#include <linux/mman.h>
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#include <linux/binfmts.h>
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#include <linux/namei.h>
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#include <linux/vfs.h>
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#include <linux/ptrace.h>
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#include <linux/swap.h>
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#include <linux/syscalls.h>
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#include <asm/types.h>
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#include <asm/uaccess.h>
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#include <asm/mmu_context.h>
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#include "sys32.h"
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#undef DEBUG
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#ifdef DEBUG
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#define DBG(x) printk x
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#else
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#define DBG(x)
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#endif
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asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
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int r22, int r21, int r20)
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{
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printk(KERN_ERR "%s(%d): Unimplemented 32 on 64 syscall #%d!\n",
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current->comm, current->pid, r20);
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return -ENOSYS;
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}
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/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, with the
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* corresponding cast to a signed int to insure that the proper conversion
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* (sign extension) between the register representation of a signed int (msr in
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* 32-bit mode) and the register representation of a signed int (msr in 64-bit
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* mode) is performed.
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*/
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asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd,
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compat_off_t __user *offset, compat_size_t count)
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{
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return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count);
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}
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asmlinkage long sys32_sendfile64(u32 out_fd, u32 in_fd,
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compat_loff_t __user *offset, compat_size_t count)
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{
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return sys_sendfile64((int)out_fd, (int)in_fd,
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(loff_t __user *)offset, count);
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}
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asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
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{
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union semun u;
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if (cmd == SETVAL) {
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/* Ugh. arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
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* The int should be in the first 4, but our argument
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* frobbing has left it in the last 4.
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*/
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u.val = *((int *)&arg + 1);
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return sys_semctl (semid, semnum, cmd, u);
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}
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return sys_semctl (semid, semnum, cmd, arg);
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}
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long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
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size_t len)
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{
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return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
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buf, len);
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}
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asmlinkage long compat_sys_fanotify_mark(int fan_fd, int flags, u32 mask_hi,
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u32 mask_lo, int fd,
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const char __user *pathname)
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{
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return sys_fanotify_mark(fan_fd, flags, ((u64)mask_hi << 32) | mask_lo,
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fd, pathname);
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}
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