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Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc

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Pull exec domain removal from Richard Weinberger:
 "This series removes execution domain support from Linux.

  The idea behind exec domains was to support different ABIs.  The
  feature was never complete nor stable.  Let's rip it out and make the
  kernel signal handling code less complicated"

* 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (27 commits)
  arm64: Removed unused variable
  sparc: Fix execution domain removal
  Remove rest of exec domains.
  arch: Remove exec_domain from remaining archs
  arc: Remove signal translation and exec_domain
  xtensa: Remove signal translation and exec_domain
  xtensa: Autogenerate offsets in struct thread_info
  x86: Remove signal translation and exec_domain
  unicore32: Remove signal translation and exec_domain
  um: Remove signal translation and exec_domain
  tile: Remove signal translation and exec_domain
  sparc: Remove signal translation and exec_domain
  sh: Remove signal translation and exec_domain
  s390: Remove signal translation and exec_domain
  mn10300: Remove signal translation and exec_domain
  microblaze: Remove signal translation and exec_domain
  m68k: Remove signal translation and exec_domain
  m32r: Remove signal translation and exec_domain
  m32r: Autogenerate offsets in struct thread_info
  frv: Remove signal translation and exec_domain
  ...
This commit is contained in:
Linus Torvalds 2015-04-15 13:53:55 -07:00
commit fa2e5c073a
85 changed files with 86 additions and 675 deletions
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40
include/linux/personality.h
View file

@ -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 */

6
include/linux/sched.h
View file

@ -125,7 +125,6 @@ struct sched_attr {
u64 sched_period;
};
struct exec_domain;
struct futex_pi_state;
struct robust_list_head;
struct bio_list;
@ -2311,11 +2310,6 @@ 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)];