mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
133 lines
3.5 KiB
133 lines
3.5 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
|
* Conversion between 32-bit and 64-bit native system calls. |
|
* |
|
* Copyright (C) 2000 Silicon Graphics, Inc. |
|
* Written by Ulf Carlsson ([email protected]) |
|
*/ |
|
#include <linux/compiler.h> |
|
#include <linux/mm.h> |
|
#include <linux/errno.h> |
|
#include <linux/file.h> |
|
#include <linux/highuid.h> |
|
#include <linux/resource.h> |
|
#include <linux/highmem.h> |
|
#include <linux/time.h> |
|
#include <linux/times.h> |
|
#include <linux/poll.h> |
|
#include <linux/skbuff.h> |
|
#include <linux/filter.h> |
|
#include <linux/shm.h> |
|
#include <linux/sem.h> |
|
#include <linux/msg.h> |
|
#include <linux/icmpv6.h> |
|
#include <linux/syscalls.h> |
|
#include <linux/sysctl.h> |
|
#include <linux/utime.h> |
|
#include <linux/utsname.h> |
|
#include <linux/personality.h> |
|
#include <linux/dnotify.h> |
|
#include <linux/binfmts.h> |
|
#include <linux/security.h> |
|
#include <linux/compat.h> |
|
#include <linux/vfs.h> |
|
#include <linux/ipc.h> |
|
#include <linux/slab.h> |
|
|
|
#include <net/sock.h> |
|
#include <net/scm.h> |
|
|
|
#include <asm/compat-signal.h> |
|
#include <asm/sim.h> |
|
#include <linux/uaccess.h> |
|
#include <asm/mmu_context.h> |
|
#include <asm/mman.h> |
|
|
|
#ifdef __MIPSEB__ |
|
#define merge_64(r1, r2) ((((r1) & 0xffffffffUL) << 32) + ((r2) & 0xffffffffUL)) |
|
#endif |
|
#ifdef __MIPSEL__ |
|
#define merge_64(r1, r2) ((((r2) & 0xffffffffUL) << 32) + ((r1) & 0xffffffffUL)) |
|
#endif |
|
|
|
SYSCALL_DEFINE4(32_truncate64, const char __user *, path, |
|
unsigned long, __dummy, unsigned long, a2, unsigned long, a3) |
|
{ |
|
return ksys_truncate(path, merge_64(a2, a3)); |
|
} |
|
|
|
SYSCALL_DEFINE4(32_ftruncate64, unsigned long, fd, unsigned long, __dummy, |
|
unsigned long, a2, unsigned long, a3) |
|
{ |
|
return ksys_ftruncate(fd, merge_64(a2, a3)); |
|
} |
|
|
|
SYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high, |
|
unsigned int, offset_low, loff_t __user *, result, |
|
unsigned int, origin) |
|
{ |
|
return sys_llseek(fd, offset_high, offset_low, result, origin); |
|
} |
|
|
|
/* From the Single Unix Spec: pread & pwrite act like lseek to pos + op + |
|
lseek back to original location. They fail just like lseek does on |
|
non-seekable files. */ |
|
|
|
SYSCALL_DEFINE6(32_pread, unsigned long, fd, char __user *, buf, size_t, count, |
|
unsigned long, unused, unsigned long, a4, unsigned long, a5) |
|
{ |
|
return ksys_pread64(fd, buf, count, merge_64(a4, a5)); |
|
} |
|
|
|
SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf, |
|
size_t, count, u32, unused, u64, a4, u64, a5) |
|
{ |
|
return ksys_pwrite64(fd, buf, count, merge_64(a4, a5)); |
|
} |
|
|
|
SYSCALL_DEFINE1(32_personality, unsigned long, personality) |
|
{ |
|
unsigned int p = personality & 0xffffffff; |
|
int ret; |
|
|
|
if (personality(current->personality) == PER_LINUX32 && |
|
personality(p) == PER_LINUX) |
|
p = (p & ~PER_MASK) | PER_LINUX32; |
|
ret = sys_personality(p); |
|
if (ret != -1 && personality(ret) == PER_LINUX32) |
|
ret = (ret & ~PER_MASK) | PER_LINUX; |
|
return ret; |
|
} |
|
|
|
asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3, |
|
size_t count) |
|
{ |
|
return ksys_readahead(fd, merge_64(a2, a3), count); |
|
} |
|
|
|
asmlinkage long sys32_sync_file_range(int fd, int __pad, |
|
unsigned long a2, unsigned long a3, |
|
unsigned long a4, unsigned long a5, |
|
int flags) |
|
{ |
|
return ksys_sync_file_range(fd, |
|
merge_64(a2, a3), merge_64(a4, a5), |
|
flags); |
|
} |
|
|
|
asmlinkage long sys32_fadvise64_64(int fd, int __pad, |
|
unsigned long a2, unsigned long a3, |
|
unsigned long a4, unsigned long a5, |
|
int flags) |
|
{ |
|
return ksys_fadvise64_64(fd, |
|
merge_64(a2, a3), merge_64(a4, a5), |
|
flags); |
|
} |
|
|
|
asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2, |
|
unsigned offset_a3, unsigned len_a4, unsigned len_a5) |
|
{ |
|
return ksys_fallocate(fd, mode, merge_64(offset_a2, offset_a3), |
|
merge_64(len_a4, len_a5)); |
|
}
|
|
|