arch/x86/um/sys_call_table_32.c

   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 #include <asm/syscall.h>
  11
  12 #define __NO_STUBS
  13
  14 /*
  15  * Below you can see, in terms of #define's, the differences between the x86-64
  16  * and the UML syscall table.
  17  */
  18
  19 /* Not going to be implemented by UML, since we have no hardware. */
  20 #define sys_iopl sys_ni_syscall
  21 #define sys_ioperm sys_ni_syscall
  22
  23 #define sys_vm86old sys_ni_syscall
  24 #define sys_vm86 sys_ni_syscall
  25
  26 #define old_mmap sys_old_mmap
  27
  28 #define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
  29 #include <asm/syscalls_32.h>
  30
  31 #undef __SYSCALL_I386
  32 #define __SYSCALL_I386(nr, sym, qual) [ nr ] = sym,
  33
  34 extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  35
  36 const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
  37         /*
  38          * Smells like a compiler bug -- it doesn't work
  39          * when the & below is removed.
  40          */
  41         [0 ... __NR_syscall_max] = &sys_ni_syscall,
  42 #include <asm/syscalls_32.h>
  43 };
  44
  45 int syscall_table_size = sizeof(sys_call_table);