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/syscall.h> 9 10 #define __SYSCALL(nr, sym) extern long __x64_##sym(const struct pt_regs *); 11 #define __SYSCALL_NORETURN(nr, sym) extern long __noreturn __x64_##sym(const struct pt_regs *); 12 #include <asm/syscalls_64.h> 13 #undef __SYSCALL 14 15 #undef __SYSCALL_NORETURN 16 #define __SYSCALL_NORETURN __SYSCALL 17 18 /* 19 * The sys_call_table[] is no longer used for system calls, but 20 * kernel/trace/trace_syscalls.c still wants to know the system 21 * call address. 22 */ 23 #define __SYSCALL(nr, sym) __x64_##sym, 24 const sys_call_ptr_t sys_call_table[] = { 25 #include <asm/syscalls_64.h> 26 }; 27 #undef __SYSCALL 28 29 #define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs); 30 long x64_sys_call(const struct pt_regs *regs, unsigned int nr) 31 { 32 switch (nr) { 33 #include <asm/syscalls_64.h> 34 default: return __x64_sys_ni_syscall(regs); 35 } 36 }; 37