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/*
13 * Below you can see, in terms of #define's, the differences between the x86-64
14 * and the UML syscall table.
15 */
16
17/* Not going to be implemented by UML, since we have no hardware. */
18#define sys_iopl sys_ni_syscall
19#define sys_ioperm sys_ni_syscall
20
21#define sys_vm86old sys_ni_syscall
22#define sys_vm86 sys_ni_syscall
23
24#define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, native)
25
26#define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
27#include <asm/syscalls_32.h>
28
29#undef __SYSCALL
30#define __SYSCALL(nr, sym) sym,
 
 
31
32extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
33
34const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
 
 
 
 
 
35#include <asm/syscalls_32.h>
36};
37
38int syscall_table_size = sizeof(sys_call_table);

 
 1/*
 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. */
19#define sys_iopl sys_ni_syscall
20#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
27#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
33typedef asmlinkage void (*sys_call_ptr_t)(void);
34
35extern asmlinkage void sys_ni_syscall(void);
36
37const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
38	/*
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);