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Commit 9058f3b3 authored by Richard Weinberger's avatar Richard Weinberger
Browse files

Remove rest of exec domains. 



It is gone from all archs, now we can remove
the final bits.

Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent fa41b1c7

include/linux/personality.h

+1 −39
Original line number Diff line number Diff line
@@ -3,52 +3,14 @@ 


#include <uapi/linux/personality.h>





/*

 * Handling of different ABIs (personalities).

 */



struct exec_domain;

struct pt_regs;



extern int		register_exec_domain(struct exec_domain *);

extern int		unregister_exec_domain(struct exec_domain *);

extern int		__set_personality(unsigned int);





/*

 * Description of an execution domain.

 * 

 * The first two members are refernced from assembly source

 * and should stay where they are unless explicitly needed.

 */

typedef void (*handler_t)(int, struct pt_regs *);



struct exec_domain {

	const char		*name;		/* name of the execdomain */

	handler_t		handler;	/* handler for syscalls */

	unsigned char		pers_low;	/* lowest personality */

	unsigned char		pers_high;	/* highest personality */

	unsigned long		*signal_map;	/* signal mapping */

	unsigned long		*signal_invmap;	/* reverse signal mapping */

	struct map_segment	*err_map;	/* error mapping */

	struct map_segment	*socktype_map;	/* socket type mapping */

	struct map_segment	*sockopt_map;	/* socket option mapping */

	struct map_segment	*af_map;	/* address family mapping */

	struct module		*module;	/* module context of the ed. */

	struct exec_domain	*next;		/* linked list (internal) */

};



/*

 * Return the base personality without flags.

 */

#define personality(pers)	(pers & PER_MASK)





/*

 * Change personality of the currently running process.

 */

#define set_personality(pers) \

	((current->personality == (pers)) ? 0 : __set_personality(pers))

#define set_personality(pers)	(current->personality = (pers))



#endif /* _LINUX_PERSONALITY_H */

include/linux/sched.h

+0 −6
Original line number Diff line number Diff line
@@ -125,7 +125,6 @@ struct sched_attr { 
	u64 sched_period;

};



struct exec_domain;

struct futex_pi_state;

struct robust_list_head;

struct bio_list;
@@ -2288,11 +2287,6 @@ extern void set_curr_task(int cpu, struct task_struct *p); 


void yield(void);



/*

 * The default (Linux) execution domain.

 */

extern struct exec_domain	default_exec_domain;



union thread_union {

	struct thread_info thread_info;

	unsigned long stack[THREAD_SIZE/sizeof(long)];

kernel/exec_domain.c

+0 −37
Original line number Diff line number Diff line
@@ -20,43 +20,6 @@ 
#include <linux/types.h>

#include <linux/fs_struct.h>



static void default_handler(int, struct pt_regs *);

static unsigned long ident_map[32] = {

	0,	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

};



struct exec_domain default_exec_domain = {

	.name		= "Linux",		/* name */

	.handler	= default_handler,	/* lcall7 causes a seg fault. */

	.pers_low	= 0,			/* PER_LINUX personality. */

	.pers_high	= 0,			/* PER_LINUX personality. */

	.signal_map	= ident_map,		/* Identity map signals. */

	.signal_invmap	= ident_map,		/*  - both ways. */

};





static void

default_handler(int segment, struct pt_regs *regp)

{

	set_personality(0);



	if (current_thread_info()->exec_domain->handler != default_handler)

		current_thread_info()->exec_domain->handler(segment, regp);

	else

		send_sig(SIGSEGV, current, 1);

}



int __set_personality(unsigned int personality)

{

	current->personality = personality;



	return 0;

}

EXPORT_SYMBOL(__set_personality);



#ifdef CONFIG_PROC_FS

static int execdomains_proc_show(struct seq_file *m, void *v)

{