1 #ifndef _PERSONALITY_H
2 #define _PERSONALITY_H
3
4 #include <linux/linkage.h>
5 #include <linux/ptrace.h>
6 #include <asm/current.h>
7
8 /* Flags for bug emulation. These occupy the top three bytes. */
9 #define STICKY_TIMEOUTS 0x4000000
10 #define WHOLE_SECONDS 0x2000000
11 #define ADDR_LIMIT_32BIT 0x0800000
12
13 /* Personality types. These go in the low byte. Avoid using the top bit,
14 * it will conflict with error returns.
15 */
16 #define PER_MASK (0x00ff)
17 #define PER_LINUX (0x0000)
18 #define PER_LINUX_32BIT (0x0000 | ADDR_LIMIT_32BIT)
19 #define PER_SVR4 (0x0001 | STICKY_TIMEOUTS)
20 #define PER_SVR3 (0x0002 | STICKY_TIMEOUTS)
21 #define PER_SCOSVR3 (0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS)
22 #define PER_WYSEV386 (0x0004 | STICKY_TIMEOUTS)
23 #define PER_ISCR4 (0x0005 | STICKY_TIMEOUTS)
24 #define PER_BSD (0x0006)
25 #define PER_SUNOS (PER_BSD | STICKY_TIMEOUTS)
26 #define PER_XENIX (0x0007 | STICKY_TIMEOUTS)
27 #define PER_LINUX32 (0x0008)
28 #define PER_IRIX32 (0x0009 | STICKY_TIMEOUTS) /* IRIX5 32-bit */
29 #define PER_IRIXN32 (0x000a | STICKY_TIMEOUTS) /* IRIX6 new 32-bit */
30 #define PER_IRIX64 (0x000b | STICKY_TIMEOUTS) /* IRIX6 64-bit */
31 #define PER_RISCOS (0x000c)
32 #define PER_SOLARIS (0x000d | STICKY_TIMEOUTS)
33
34 /* Prototype for an lcall7 syscall handler. */
35 typedef void (*lcall7_func)(int, struct pt_regs *);
36
37
38 /* Description of an execution domain - personality range supported,
39 * lcall7 syscall handler, start up / shut down functions etc.
40 * N.B. The name and lcall7 handler must be where they are since the
41 * offset of the handler is hard coded in kernel/sys_call.S.
42 */
43 struct exec_domain {
44 const char *name;
45 lcall7_func handler;
46 unsigned char pers_low, pers_high;
47 unsigned long * signal_map;
48 unsigned long * signal_invmap;
49 struct module * module;
50 struct exec_domain *next;
51 };
52
53 extern struct exec_domain default_exec_domain;
54
55 extern int register_exec_domain(struct exec_domain *it);
56 extern int unregister_exec_domain(struct exec_domain *it);
57 #define put_exec_domain(it) \
58 if (it && it->module) __MOD_DEC_USE_COUNT(it->module);
59 #define get_exec_domain(it) \
60 if (it && it->module) __MOD_INC_USE_COUNT(it->module);
61 extern void __set_personality(unsigned long personality);
62 #define set_personality(pers) do { \
63 if (current->personality != pers) \
64 __set_personality(pers); \
65 } while (0)
66 asmlinkage long sys_personality(unsigned long personality);
67
68 #endif /* _PERSONALITY_H */
69
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