1 // SPDX-License-Identifier: GPL-2.0
3 * Handling of different ABIs (personalities).
5 * We group personalities into execution domains which have their
6 * own handlers for kernel entry points, signal mapping, etc...
8 * 2001-05-06 Complete rewrite, Christoph Hellwig (hch@infradead.org)
11 #include <linux/init.h>
12 #include <linux/kernel.h>
13 #include <linux/kmod.h>
14 #include <linux/module.h>
15 #include <linux/personality.h>
16 #include <linux/proc_fs.h>
17 #include <linux/sched.h>
18 #include <linux/seq_file.h>
19 #include <linux/syscalls.h>
20 #include <linux/sysctl.h>
21 #include <linux/types.h>
22 #include <linux/fs_struct.h>
25 static int execdomains_proc_show(struct seq_file *m, void *v)
27 seq_puts(m, "0-0\tLinux \t[kernel]\n");
31 static int execdomains_proc_open(struct inode *inode, struct file *file)
33 return single_open(file, execdomains_proc_show, NULL);
36 static const struct file_operations execdomains_proc_fops = {
37 .open = execdomains_proc_open,
40 .release = single_release,
43 static int __init proc_execdomains_init(void)
45 proc_create("execdomains", 0, NULL, &execdomains_proc_fops);
48 module_init(proc_execdomains_init);
51 SYSCALL_DEFINE1(personality, unsigned int, personality)
53 unsigned int old = current->personality;
55 if (personality != 0xffffffff)
56 set_personality(personality);