tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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);