linux/arch/x86/entry/syscall_64.c
Brian Gerst cc42c045af x86/entry/64: Move sys_ni_syscall stub to common.c
so it can be available to multiple syscall tables.  Also directly return
-ENOSYS instead of bouncing to the generic sys_ni_syscall().

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200313195144.164260-7-brgerst@gmail.com
2020-03-21 16:03:20 +01:00

50 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
/* System call table for x86-64. */
#include <linux/linkage.h>
#include <linux/sys.h>
#include <linux/cache.h>
#include <linux/syscalls.h>
#include <asm/asm-offsets.h>
#include <asm/syscall.h>
#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *);
#define __SYSCALL_X32(nr, sym, qual) __SYSCALL_64(nr, sym, qual)
#include <asm/syscalls_64.h>
#undef __SYSCALL_64
#undef __SYSCALL_X32
#define __SYSCALL_64(nr, sym, qual) [nr] = sym,
#define __SYSCALL_X32(nr, sym, qual)
asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
/*
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.
*/
[0 ... __NR_syscall_max] = &__x64_sys_ni_syscall,
#include <asm/syscalls_64.h>
};
#undef __SYSCALL_64
#undef __SYSCALL_X32
#ifdef CONFIG_X86_X32_ABI
#define __SYSCALL_64(nr, sym, qual)
#define __SYSCALL_X32(nr, sym, qual) [nr] = sym,
asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_syscall_x32_max+1] = {
/*
* Smells like a compiler bug -- it doesn't work
* when the & below is removed.
*/
[0 ... __NR_syscall_x32_max] = &__x64_sys_ni_syscall,
#include <asm/syscalls_64.h>
};
#undef __SYSCALL_64
#undef __SYSCALL_X32
#endif