607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
#ifndef _LINUX_PERSONALITY_H
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#define _LINUX_PERSONALITY_H
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#include <uapi/linux/personality.h>
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/*
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* Handling of different ABIs (personalities).
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*/
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struct exec_domain;
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struct pt_regs;
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extern int register_exec_domain(struct exec_domain *);
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extern int unregister_exec_domain(struct exec_domain *);
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extern int __set_personality(unsigned int);
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/*
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* Description of an execution domain.
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*
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* The first two members are refernced from assembly source
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* and should stay where they are unless explicitly needed.
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*/
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typedef void (*handler_t)(int, struct pt_regs *);
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struct exec_domain {
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const char *name; /* name of the execdomain */
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handler_t handler; /* handler for syscalls */
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unsigned char pers_low; /* lowest personality */
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unsigned char pers_high; /* highest personality */
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unsigned long *signal_map; /* signal mapping */
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unsigned long *signal_invmap; /* reverse signal mapping */
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struct map_segment *err_map; /* error mapping */
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struct map_segment *socktype_map; /* socket type mapping */
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struct map_segment *sockopt_map; /* socket option mapping */
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struct map_segment *af_map; /* address family mapping */
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struct module *module; /* module context of the ed. */
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struct exec_domain *next; /* linked list (internal) */
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};
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/*
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* Return the base personality without flags.
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*/
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#define personality(pers) (pers & PER_MASK)
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/*
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* Change personality of the currently running process.
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*/
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#define set_personality(pers) \
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((current->personality == (pers)) ? 0 : __set_personality(pers))
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#endif /* _LINUX_PERSONALITY_H */
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