| 1 | |
| 2 | * Handling of different ABIs (personalities).
|
| 3 | *
|
| 4 | * We group personalities into execution domains which have their
|
| 5 | * own handlers for kernel entry points, signal mapping, etc...
|
| 6 | *
|
| 7 | * 2001-05-06 Complete rewrite, Christoph Hellwig ([email protected])
|
| 8 |
|
| 9 |
|
| 10 | #include <linux/init.h>
|
| 11 | #include <linux/kernel.h>
|
| 12 | #include <linux/kmod.h>
|
| 13 | #include <linux/module.h>
|
| 14 | #include <linux/personality.h>
|
| 15 | #include <linux/proc_fs.h>
|
| 16 | #include <linux/sched.h>
|
| 17 | #include <linux/seq_file.h>
|
| 18 | #include <linux/syscalls.h>
|
| 19 | #include <linux/sysctl.h>
|
| 20 | #include <linux/types.h>
|
| 21 | #include <linux/fs_struct.h>
|
| 22 |
|
| 23 | #ifdef CONFIG_PROC_FS
|
| 24 | static int execdomains_proc_show(struct seq_file *m, void *v)
|
| 25 | {
|
| 26 | seq_puts(m, "0-0\tLinux \t[kernel]\n");
|
| 27 | return 0;
|
| 28 | }
|
| 29 |
|
| 30 | static int execdomains_proc_open(struct inode *inode, struct file *file)
|
| 31 | {
|
| 32 | return single_open(file, execdomains_proc_show, NULL);
|
| 33 | }
|
| 34 |
|
| 35 | static const struct file_operations execdomains_proc_fops = {
|
| 36 | .open = execdomains_proc_open,
|
| 37 | .read = seq_read,
|
| 38 | .llseek = seq_lseek,
|
| 39 | .release = single_release,
|
| 40 | };
|
| 41 |
|
| 42 | static int __init proc_execdomains_init(void)
|
| 43 | {
|
| 44 | proc_create("execdomains", 0, NULL, &execdomains_proc_fops);
|
| 45 | return 0;
|
| 46 | }
|
| 47 | module_init(proc_execdomains_init);
|
| 48 | #endif
|
| 49 |
|
| 50 | SYSCALL_DEFINE1(personality, unsigned int, personality)
|
| 51 | {
|
| 52 | unsigned int old = current->personality;
|
| 53 |
|
| 54 | if (personality != 0xffffffff)
|
| 55 | set_personality(personality);
|
| 56 |
|
| 57 | return old;
|
| 58 | }
|