LXR linux/arch/x86/um/sys_call_table

   1/*
   2 * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
   3 * with some changes for UML.
   4 */
   5
   6#include <linux/linkage.h>
   7#include <linux/sys.h>
   8#include <linux/cache.h>
   9#include <generated/user_constants.h>
  10
  11#define __NO_STUBS
  12
  13/*
  14 * Below you can see, in terms of #define's, the differences between the x86-64
  15 * and the UML syscall table.
  16 */
  17
  18/* Not going to be implemented by UML, since we have no hardware. */
  19#define sys_iopl sys_ni_syscall
  20#define sys_ioperm sys_ni_syscall
  21
  22#define sys_vm86old sys_ni_syscall
  23#define sys_vm86 sys_ni_syscall
  24
  25#define old_mmap sys_old_mmap
  26
  27#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
  28#include <asm/syscalls_32.h>
  29
  30#undef __SYSCALL_I386
  31#define __SYSCALL_I386(nr, sym, compat) [ nr ] = sym,
  32
  33typedef asmlinkage void (*sys_call_ptr_t)(void);
  34
  35extern asmlinkage void sys_ni_syscall(void);
  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