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H. Peter Anvin45db1c62011-12-05 16:08:49 -08001/*
2 * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
3 * with some changes for UML.
4 */
5
6#include <linux/linkage.h>
7#include <linux/sys.h>
8#include <linux/cache.h>
9#include <generated/user_constants.h>
10
11#define __NO_STUBS
12
13/*
14 * Below you can see, in terms of #define's, the differences between the x86-64
15 * and the UML syscall table.
16 */
17
18/* Not going to be implemented by UML, since we have no hardware. */
H. Peter Anvin47db9e72011-12-09 11:13:59 -080019#define sys_iopl sys_ni_syscall
H. Peter Anvin45db1c62011-12-05 16:08:49 -080020#define sys_ioperm sys_ni_syscall
21
22#define sys_vm86old sys_ni_syscall
23#define sys_vm86 sys_ni_syscall
24
25#define old_mmap sys_old_mmap
26
H. Peter Anvin45db1c62011-12-05 16:08:49 -080027#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
28#include <asm/syscalls_32.h>
29
30#undef __SYSCALL_I386
31#define __SYSCALL_I386(nr, sym, compat) [ nr ] = sym,
32
Martin Pelikan9271b0b2012-06-09 21:22:11 +020033typedef asmlinkage void (*sys_call_ptr_t)(void);
H. Peter Anvin45db1c62011-12-05 16:08:49 -080034
Martin Pelikan9271b0b2012-06-09 21:22:11 +020035extern asmlinkage void sys_ni_syscall(void);
H. Peter Anvin45db1c62011-12-05 16:08:49 -080036
Daniel Borkmannb4853422015-01-03 13:11:10 +010037const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
H. Peter Anvin45db1c62011-12-05 16:08:49 -080038 /*
39 * Smells like a compiler bug -- it doesn't work
40 * when the & below is removed.
41 */
42 [0 ... __NR_syscall_max] = &sys_ni_syscall,
43#include <asm/syscalls_32.h>
44};
45
46int syscall_table_size = sizeof(sys_call_table);