text: /*
   * System call table for UML/x86-64, 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
  
  /*
   * The UML TLS problem. Note that x86_64 does not implement this, so the below
   * is needed only for the ia32 compatibility.
   */
  
  /* On UML we call it this way ("old" means it's not mmap2) */
  #define sys_mmap old_mmap
  
  #define stub_clone sys_clone
  #define stub_fork sys_fork
  #define stub_vfork sys_vfork
  #define stub_execve sys_execve
  #define stub_execveat sys_execveat
  #define stub_rt_sigreturn sys_rt_sigreturn
  
  #define __SYSCALL_COMMON(nr, sym, compat) __SYSCALL_64(nr, sym, compat)
  #define __SYSCALL_X32(nr, sym, compat) /* Not supported */
  
  #define __SYSCALL_64(nr, sym, compat) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
  #include <asm/syscalls_64.h>
  
  #undef __SYSCALL_64
  #define __SYSCALL_64(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_64.h>
  };
  
  int syscall_table_size = sizeof(sys_call_table);
  