1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
#ifndef _PERSONALITY_H
#define _PERSONALITY_H
#include <linux/linkage.h>
#include <linux/ptrace.h>
/* Flags for bug emulation. These occupy the top three bytes. */
#define STICKY_TIMEOUTS 0x4000000
#define WHOLE_SECONDS 0x2000000
#define ADDR_LIMIT_32BIT 0x0800000
/* Personality types. These go in the low byte. Avoid using the top bit,
* it will conflict with error returns.
*/
#define PER_MASK (0x00ff)
#define PER_LINUX (0x0000)
#define PER_LINUX_32BIT (0x0000 | ADDR_LIMIT_32BIT)
#define PER_SVR4 (0x0001 | STICKY_TIMEOUTS)
#define PER_SVR3 (0x0002 | STICKY_TIMEOUTS)
#define PER_SCOSVR3 (0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS)
#define PER_WYSEV386 (0x0004 | STICKY_TIMEOUTS)
#define PER_ISCR4 (0x0005 | STICKY_TIMEOUTS)
#define PER_BSD (0x0006)
#define PER_XENIX (0x0007 | STICKY_TIMEOUTS)
#define PER_LINUX32 (0x0008)
/* Prototype for an lcall7 syscall handler. */
typedef void (*lcall7_func)(struct pt_regs *);
/* Description of an execution domain - personality range supported,
* lcall7 syscall handler, start up / shut down functions etc.
* N.B. The name and lcall7 handler must be where they are since the
* offset of the handler is hard coded in kernel/sys_call.S.
*/
struct exec_domain {
const char *name;
lcall7_func handler;
unsigned char pers_low, pers_high;
unsigned long * signal_map;
unsigned long * signal_invmap;
struct module * module;
struct exec_domain *next;
};
extern struct exec_domain default_exec_domain;
extern struct exec_domain *lookup_exec_domain(unsigned long personality);
extern int register_exec_domain(struct exec_domain *it);
extern int unregister_exec_domain(struct exec_domain *it);
asmlinkage int sys_personality(unsigned long personality);
#endif /* _PERSONALITY_H */
|
