1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
4  * with some changes for UML.
5  */
6 
7 #include <linux/linkage.h>
8 #include <linux/sys.h>
9 #include <linux/cache.h>
10 #include <asm/syscall.h>
11 
12 #define __NO_STUBS
13 
14 /*
15  * Below you can see, in terms of #define's, the differences between the x86-64
16  * and the UML syscall table.
17  */
18 
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
22 
23 #define sys_vm86old sys_ni_syscall
24 #define sys_vm86 sys_ni_syscall
25 
26 #define old_mmap sys_old_mmap
27 
28 #define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, native)
29 
30 #define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
31 #include <asm/syscalls_32.h>
32 
33 #undef __SYSCALL
34 #define __SYSCALL(nr, sym) sym,
35 
36 extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
37 
38 const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
39 #include <asm/syscalls_32.h>
40 };
41 
42 int syscall_table_size = sizeof(sys_call_table);
43