1 // SPDX-License-Identifier: GPL-2.0
3 * System call table for UML/x86-64, copied from arch/x86/kernel/syscall_*.c
4 * with some changes for UML.
7 #include <linux/linkage.h>
9 #include <linux/cache.h>
10 #include <asm/syscall.h>
15 * Below you can see, in terms of #define's, the differences between the x86-64
16 * and the UML syscall table.
19 /* Not going to be implemented by UML, since we have no hardware. */
20 #define sys_iopl sys_ni_syscall
21 #define sys_ioperm sys_ni_syscall
24 * The UML TLS problem. Note that x86_64 does not implement this, so the below
25 * is needed only for the ia32 compatibility.
28 /* On UML we call it this way ("old" means it's not mmap2) */
29 #define sys_mmap old_mmap
31 #define stub_clone sys_clone
32 #define stub_fork sys_fork
33 #define stub_vfork sys_vfork
34 #define stub_execve sys_execve
35 #define stub_execveat sys_execveat
36 #define stub_rt_sigreturn sys_rt_sigreturn
38 #define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
39 #include <asm/syscalls_64.h>
42 #define __SYSCALL(nr, sym) sym,
44 extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
46 const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
47 #include <asm/syscalls_64.h>
50 int syscall_table_size = sizeof(sys_call_table);