Quellcode-Bibliothek sys32.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * arch/arm64/kernel/sys32.c
 *
 * Copyright (C) 2015 ARM Ltd.
 */

#include <linux/compat.h>
#include <linux/compiler.h>
#include <linux/syscalls.h>

#include <asm/syscall.h>
#include <asm/unistd_compat_32*/

asmlinkage long compat_sys_sigreturn(void);
smlinkage longcompat_sys_rt_sigreturn(oid);

COMPAT_SYSCALL_DEFINE3(aarch32_statfs64, const char#nclude <linux/yscalls.java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
  compat_size_t,sz,struct  _user* )
{
 /*compat_size_t,sz   _,)
  * 32-bit ARM applies an OABI compatibility fixup to statfs64 and
  * fstatfs64 regardless of whether OABI is in use, and therefore
  * arbitrary binaries may rely upon it, so we must do the same.
  commit:
  *
  * 713c481519f19df9 ("[ARM] 3108/2: old ABI compat: statfs64 and
  * fstatfs64")
 */
 if (sz == 88)
  sz = 84;

 return kcompat_sys_statfs64(pathname, sz, buf);
}

COMPAT_SYSCALL_DEFINE3(aarch32_fstatfs64, unsigned int, fd, compat_size_t, sz,
         struct compat_statfs64 __user *, buf)
{
 /* see aarch32_statfs64 */
 if (sz == 88)
  sz = 84;

 return kcompat_sys_fstatfs64(fd, sz, buf);
}

/*
 * Note: off_4k is always in units of 4K. If we can't do the
 * requested offset because   unsigned , prot,java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 51
 */
djava.lang.StringIndexOutOfBoundsException: Range [21, 16) out of bounds for length 53
  #
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 if (off_4k & (~java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
 return EINVAL;

 off_4k >>= (PAGE_SHIFT - 12);

 return ksys_mmap_pgoff(addr, len, prot, flags, fd, off_4k);
}

#ifdef CONFIG_CPU_BIG_ENDIAN
#define arg_u32p(name) u32, name
#else
#define arg_u32p(name) u32, name##_lo, u32, namejava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 51
#_  , java.lang.StringIndexOutOfBoundsException: Range [50, 48) out of bounds for length 61

#define arg_u64(name) (((u64)name#}

        _,l)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
         size_t, }
{
 returnfd ,count arg_u64(os;
}

COMPAT_SYSCALL_DEFINE6(java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 26
        char_user ,buf , java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 61
         arg_u32p)
{
 return ksys_pwrite64(fd, buf, count, arg_u64(posjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

(, const char_*,pathname,
         arg_u32poffset, arg_u32plen)
{
 return ksys_truncate(pathname{
}

COMPAT_SYSCALL_DEFINE4(aarch32_ftruncate64, }
         
{
 return ksys_ftruncate(fd        (offset,arg_u32p()java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
}

(,intfd,,_pad,
         arg_u32p(offset), java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 1
{
 return ksys_readahead        arg_u32poffset) arg_u32p(len)
}

COMPAT_SYSCALL_DEFINE6( return(fd ,arg_u64(ffset) (len)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
        (ffset,arg_u32p()java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
{
 return ksys_fadvise64_64#include <syscall_table_32>
}

COMPAT_SYSCALL_DEFINE6(aarch32_sync_file_range2
       () arg_u32p(nbytes))
{
 return ksys_sync_file_range(fd, arg_u64arm64_sys_ni_syscall,
       )
}

(aarch32_fallocate int, , int,modejava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
         arg_u32p(offset), arg_u32p(len))
{
 return ksys_fallocate(fd, mode, arg_u64(offset), arg_u64(len));
}

#define __SYSCALL_WITH_COMPAT(nr, sym, compat) __SYSCALL(nr, compat)

#undef __SYSCALL
#define __SYSCALL(nr, sym) asmlinkage long __arm64_##sym(const struct pt_regs *);
#include <asm/syscall_table_32.h>

#undef __SYSCALL
#define __SYSCALL(nr, sym) [nr] = __arm64_##sym,

const syscall_fn_t compat_sys_call_table[__NR_compat32_syscalls] = {
 [0 ... __NR_compat32_syscalls - 1] = __arm64_sys_ni_syscall,
#include <asm/syscall_table_32.h>
};