arch/x86/entry/syscall_64.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* System call table for x86-64. */
   3
   4 #include <linux/linkage.h>
   5 #include <linux/sys.h>
   6 #include <linux/cache.h>
   7 #include <asm/asm-offsets.h>
   8 #include <asm/syscall.h>
   9
  10 #define __SYSCALL_64_QUAL_(sym) sym
  11 #define __SYSCALL_64_QUAL_ptregs(sym) ptregs_##sym
  12
  13 #define __SYSCALL_64(nr, sym, qual) extern asmlinkage long __SYSCALL_64_QUAL_##qual(sym)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  14 #include <asm/syscalls_64.h>
  15 #undef __SYSCALL_64
  16
  17 #define __SYSCALL_64(nr, sym, qual) [nr] = __SYSCALL_64_QUAL_##qual(sym),
  18
  19 extern long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  20
  21 asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
  22         /*
  23          * Smells like a compiler bug -- it doesn't work
  24          * when the & below is removed.
  25          */
  26         [0 ... __NR_syscall_max] = &sys_ni_syscall,
  27 #include <asm/syscalls_64.h>
  28 };