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kernel/linux-rt-4.4.41/arch/x86/um/sys_call_table_32.c 1.27 KB
5113f6f70   김현기   kernel add
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  /*
   * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
   * with some changes for UML.
   */
  
  #include <linux/linkage.h>
  #include <linux/sys.h>
  #include <linux/cache.h>
  #include <generated/user_constants.h>
  #include <asm/syscall.h>
  
  #define __NO_STUBS
  
  /*
   * Below you can see, in terms of #define's, the differences between the x86-64
   * and the UML syscall table.
   */
  
  /* Not going to be implemented by UML, since we have no hardware. */
  #define sys_iopl sys_ni_syscall
  #define sys_ioperm sys_ni_syscall
  
  #define sys_vm86old sys_ni_syscall
  #define sys_vm86 sys_ni_syscall
  
  #define old_mmap sys_old_mmap
  
  #define __SYSCALL_I386(nr, sym, compat) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
  #include <asm/syscalls_32.h>
  
  #undef __SYSCALL_I386
  #define __SYSCALL_I386(nr, sym, compat) [ nr ] = sym,
  
  extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  
  const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
  	/*
  	 * Smells like a compiler bug -- it doesn't work
  	 * when the & below is removed.
  	 */
  	[0 ... __NR_syscall_max] = &sys_ni_syscall,
  #include <asm/syscalls_32.h>
  };
  
  int syscall_table_size = sizeof(sys_call_table);