LXR linux/arch/x86/um/sys_call_table

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
   4 * with some changes for UML.
   5 */
   6
   7#include <linux/linkage.h>
   8#include <linux/sys.h>
   9#include <linux/cache.h>
  10#include <generated/user_constants.h>
  11#include <asm/syscall.h>
  12
  13#define __NO_STUBS
  14
  15/*
  16 * Below you can see, in terms of #define's, the differences between the x86-64
  17 * and the UML syscall table.
  18 */
  19
  20/* Not going to be implemented by UML, since we have no hardware. */
  21#define sys_iopl sys_ni_syscall
  22#define sys_ioperm sys_ni_syscall
  23
  24#define sys_vm86old sys_ni_syscall
  25#define sys_vm86 sys_ni_syscall
  26
  27#define old_mmap sys_old_mmap
  28
  29#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
  30#include <asm/syscalls_32.h>
  31
  32#undef __SYSCALL_I386
  33#define __SYSCALL_I386(nr, sym, qual) [ nr ] = sym,
  34
  35extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  36
  37const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
  38        /*
  39         * Smells like a compiler bug -- it doesn't work
  40         * when the & below is removed.
  41         */
  42        [0 ... __NR_syscall_max] = &sys_ni_syscall,
  43#include <asm/syscalls_32.h>
  44};
  45
  46int syscall_table_size = sizeof(sys_call_table);
  47