1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * System call table for UML/x86-64, 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 __SYSCALL_NORETURN __SYSCALL
 
 
 
 
 
 
 
 
 
 
 
 
 
26
27#define __SYSCALL(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
28#include <asm/syscalls_64.h>
29#undef  __SYSCALL
30
 
31#define __SYSCALL(nr, sym) sym,
 
 
 
32const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
33#include <asm/syscalls_64.h>
34};
35
36int syscall_table_size = sizeof(sys_call_table);

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * System call table for UML/x86-64, 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/*
24 * The UML TLS problem. Note that x86_64 does not implement this, so the below
25 * is needed only for the ia32 compatibility.
26 */
27
28/* On UML we call it this way ("old" means it's not mmap2) */
29#define sys_mmap old_mmap
30
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
37
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>
 
40
41#undef __SYSCALL
42#define __SYSCALL(nr, sym) sym,
43
44extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
45
46const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
47#include <asm/syscalls_64.h>
48};
49
50int syscall_table_size = sizeof(sys_call_table);