LXR linux/arch/x86/entry/syscall

   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 <linux/syscalls.h>
   8#include <asm/asm-offsets.h>
   9#include <asm/syscall.h>
  10
  11extern asmlinkage long sys_ni_syscall(void);
  12
  13SYSCALL_DEFINE0(ni_syscall)
  14{
  15        return sys_ni_syscall();
  16}
  17
  18#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
  19#define __SYSCALL_X32(nr, sym, qual) __SYSCALL_64(nr, sym, qual)
  20#include <asm/syscalls_64.h>
  21#undef __SYSCALL_64
  22#undef __SYSCALL_X32
  23
  24#define __SYSCALL_64(nr, sym, qual) [nr] = sym,
  25#define __SYSCALL_X32(nr, sym, qual)
  26
  27asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
  28        /*
  29         * Smells like a compiler bug -- it doesn't work
  30         * when the & below is removed.
  31         */
  32        [0 ... __NR_syscall_max] = &__x64_sys_ni_syscall,
  33#include <asm/syscalls_64.h>
  34};
  35
  36#undef __SYSCALL_64
  37#undef __SYSCALL_X32
  38
  39#ifdef CONFIG_X86_X32_ABI
  40
  41#define __SYSCALL_64(nr, sym, qual)
  42#define __SYSCALL_X32(nr, sym, qual) [nr] = sym,
  43
  44asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_syscall_x32_max+1] = {
  45        /*
  46         * Smells like a compiler bug -- it doesn't work
  47         * when the & below is removed.
  48         */
  49        [0 ... __NR_syscall_x32_max] = &__x64_sys_ni_syscall,
  50#include <asm/syscalls_64.h>
  51};
  52
  53#undef __SYSCALL_64
  54#undef __SYSCALL_X32
  55
  56#endif
  57