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Remove rest of exec domains. 

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

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2015-04-11 21:45:22 +02:00
parent fa41b1c7df
commit 9058f3b326
3 changed files with 1 additions and 82 deletions
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40
include/linux/personality.h
View File

@ -3,52 +3,14 @@
#include <uapi/linux/personality.h> #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. * Return the base personality without flags.
*/ */
#define personality(pers) (pers & PER_MASK) #define personality(pers) (pers & PER_MASK)
/* /*
* Change personality of the currently running process. * Change personality of the currently running process.
*/ */
#define set_personality(pers) \ #define set_personality(pers) (current->personality = (pers))
((current->personality == (pers)) ? 0 : __set_personality(pers))
#endif /* _LINUX_PERSONALITY_H */ #endif /* _LINUX_PERSONALITY_H */

6
include/linux/sched.h
View File

@ -125,7 +125,6 @@ struct sched_attr {
u64 sched_period; u64 sched_period;
}; };
struct exec_domain;
struct futex_pi_state; struct futex_pi_state;
struct robust_list_head; struct robust_list_head;
struct bio_list; struct bio_list;
@ -2288,11 +2287,6 @@ extern void set_curr_task(int cpu, struct task_struct *p);
void yield(void); void yield(void);
/*
* The default (Linux) execution domain.
*/
extern struct exec_domain default_exec_domain;
union thread_union { union thread_union {
struct thread_info thread_info; struct thread_info thread_info;
unsigned long stack[THREAD_SIZE/sizeof(long)]; unsigned long stack[THREAD_SIZE/sizeof(long)];

37
kernel/exec_domain.c
View File

@ -20,43 +20,6 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/fs_struct.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 #ifdef CONFIG_PROC_FS
static int execdomains_proc_show(struct seq_file *m, void *v) static int execdomains_proc_show(struct seq_file *m, void *v)
{ {