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#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
/* 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_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)
/* Prototype for an lcall7 syscall handler. */
typedef asmlinkage 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 {
char *name;
lcall7_func handler;
unsigned char pers_low, pers_high;
unsigned long * signal_map;
unsigned long * signal_invmap;
int *use_count;
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);
extern asmlinkage int sys_personality(unsigned long personality);
#endif /* _PERSONALITY_H */
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