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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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11
arch/blackfin/include/asm/thread_info.h
View file

@ -37,7 +37,6 @@ typedef unsigned long mm_segment_t;
struct thread_info {
struct task_struct *task; /* main task structure */
struct exec_domain *exec_domain; /* execution domain */
unsigned long flags; /* low level flags */
int cpu; /* cpu we're on */
int preempt_count; /* 0 => preemptable, <0 => BUG */
@ -53,7 +52,6 @@ struct thread_info {
#define INIT_THREAD_INFO(tsk) \
{ \
.task = &tsk, \
.exec_domain = &default_exec_domain, \
.flags = 0, \
.cpu = 0, \
.preempt_count = INIT_PREEMPT_COUNT, \
@ -75,15 +73,6 @@ static inline struct thread_info *current_thread_info(void)
#endif /* __ASSEMBLY__ */
/*
* Offsets in thread_info structure, used in assembly code
*/
#define TI_TASK 0
#define TI_EXECDOMAIN 4
#define TI_FLAGS 8
#define TI_CPU 12
#define TI_PREEMPT 16
/*
* thread information flag bit numbers
*/

6
arch/blackfin/kernel/asm-offsets.c
View file

@ -42,6 +42,12 @@ int main(void)
DEFINE(THREAD_PC, offsetof(struct thread_struct, pc));
DEFINE(KERNEL_STACK_SIZE, THREAD_SIZE);
/* offsets in thread_info struct */
OFFSET(TI_TASK, thread_info, task);
OFFSET(TI_FLAGS, thread_info, flags);
OFFSET(TI_CPU, thread_info, cpu);
OFFSET(TI_PREEMPT, thread_info, preempt_count);
/* offsets into the pt_regs */
DEFINE(PT_ORIG_R0, offsetof(struct pt_regs, orig_r0));
DEFINE(PT_ORIG_P0, offsetof(struct pt_regs, orig_p0));

6
arch/blackfin/kernel/signal.c
View file

@ -151,11 +151,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs)
frame = get_sigframe(ksig, sizeof(*frame));
err |= __put_user((current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
&& ksig->sig < 32
? current_thread_info()->exec_domain->
signal_invmap[ksig->sig] : ksig->sig), &frame->sig);
err |= __put_user(ksig->sig, &frame->sig);
err |= __put_user(&frame->info, &frame->pinfo);
err |= __put_user(&frame->uc, &frame->puc);

1
arch/blackfin/kernel/traps.c
View file

@ -18,6 +18,7 @@
#include <asm/fixed_code.h>
#include <asm/pseudo_instructions.h>
#include <asm/pda.h>
#include <asm/asm-offsets.h>
#ifdef CONFIG_KGDB
# include <linux/kgdb.h>