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
12extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long,
13				      unsigned long, unsigned long,
14				      unsigned long, unsigned long);
15
16/*
17 * Below you can see, in terms of #define's, the differences between the x86-64
18 * and the UML syscall table.
19 */
20
21/* Not going to be implemented by UML, since we have no hardware. */
22#define sys_iopl sys_ni_syscall
23#define sys_ioperm sys_ni_syscall
24
25#define sys_vm86old sys_ni_syscall
26#define sys_vm86 sys_ni_syscall
27
28#define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, native)
29#define __SYSCALL_NORETURN __SYSCALL
30
31#define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
 
 
 
 
 
 
 
 
 
32#include <asm/syscalls_32.h>
33#undef  __SYSCALL
34
35#define __SYSCALL(nr, sym) sym,
36const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
 
 
 
 
 
 
 
 
 
 
 
37#include <asm/syscalls_32.h>
38};
39
40int 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 ptregs_fork sys_fork
28#define ptregs_execve sys_execve
29#define ptregs_iopl sys_iopl
30#define ptregs_vm86old sys_vm86old
31#define ptregs_clone sys_clone
32#define ptregs_vm86 sys_vm86
33#define ptregs_sigaltstack sys_sigaltstack
34#define ptregs_vfork sys_vfork
35
36#define __SYSCALL_I386(nr, sym, compat) extern asmlinkage void sym(void) ;
37#include <asm/syscalls_32.h>
 
38
39#undef __SYSCALL_I386
40#define __SYSCALL_I386(nr, sym, compat) [ nr ] = sym,
41
42typedef asmlinkage void (*sys_call_ptr_t)(void);
43
44extern asmlinkage void sys_ni_syscall(void);
45
46const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
47	/*
48	 * Smells like a compiler bug -- it doesn't work
49	 * when the & below is removed.
50	 */
51	[0 ... __NR_syscall_max] = &sys_ni_syscall,
52#include <asm/syscalls_32.h>
53};
54
55int syscall_table_size = sizeof(sys_call_table);