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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * Handling of different ABIs (personalities). | |
4 | * | |
5 | * We group personalities into execution domains which have their | |
6 | * own handlers for kernel entry points, signal mapping, etc... | |
7 | * | |
8 | * 2001-05-06 Complete rewrite, Christoph Hellwig ([email protected]) | |
9 | */ | |
10 | ||
1da177e4 LT |
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> | |
6e62775e | 16 | #include <linux/proc_fs.h> |
1da177e4 | 17 | #include <linux/sched.h> |
6e62775e | 18 | #include <linux/seq_file.h> |
1da177e4 LT |
19 | #include <linux/syscalls.h> |
20 | #include <linux/sysctl.h> | |
21 | #include <linux/types.h> | |
22 | ||
6e62775e AD |
23 | #ifdef CONFIG_PROC_FS |
24 | static int execdomains_proc_show(struct seq_file *m, void *v) | |
1da177e4 | 25 | { |
973f911f | 26 | seq_puts(m, "0-0\tLinux \t[kernel]\n"); |
6e62775e AD |
27 | return 0; |
28 | } | |
29 | ||
6e62775e AD |
30 | static int __init proc_execdomains_init(void) |
31 | { | |
3f3942ac | 32 | proc_create_single("execdomains", 0, NULL, execdomains_proc_show); |
6e62775e | 33 | return 0; |
1da177e4 | 34 | } |
6e62775e AD |
35 | module_init(proc_execdomains_init); |
36 | #endif | |
1da177e4 | 37 | |
485d5276 | 38 | SYSCALL_DEFINE1(personality, unsigned int, personality) |
1da177e4 | 39 | { |
485d5276 | 40 | unsigned int old = current->personality; |
1da177e4 | 41 | |
2ee7c922 | 42 | if (personality != 0xffffffff) |
1da177e4 | 43 | set_personality(personality); |
1da177e4 | 44 | |
485d5276 | 45 | return old; |
1da177e4 | 46 | } |