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[PATCH] m68k: m68k-specific thread_info changes

Browse Source 
a) added embedded thread_info [m68k processor.h]

b) added missing symbols in asm-offsets.c

c) task_thread_info() and friends in asm-m68k/thread_info.h

d) made m68k thread_info.h included by m68k processor.h, not the other way
   round.

Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro 2005-11-13 16:06:58 -08:00 committed by Linus Torvalds
parent f037360f2e
commit abd03753bd
3 changed files with 17 additions and 4 deletions
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5
arch/m68k/kernel/asm-offsets.c
View File

@ -31,6 +31,7 @@ int main(void)
DEFINE(TASK_SIGPENDING, offsetof(struct task_struct, thread.work.sigpending));
DEFINE(TASK_NOTIFY_RESUME, offsetof(struct task_struct, thread.work.notify_resume));
DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
DEFINE(TASK_MM, offsetof(struct task_struct, mm));
DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
@ -45,6 +46,10 @@ int main(void)
DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
/* offsets into the thread_info struct */
DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
/* offsets into the pt_regs */
DEFINE(PT_D0, offsetof(struct pt_regs, d0));
DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));

2
include/asm-m68k/processor.h
View File

@ -14,6 +14,7 @@
#define current_text_addr() ({ __label__ _l; _l: &&_l;})
#include <linux/config.h>
#include <linux/thread_info.h>
#include <asm/segment.h>
#include <asm/fpu.h>
#include <asm/ptrace.h>
@ -79,6 +80,7 @@ struct thread_struct {
unsigned long fpcntl[3]; /* fp control regs */
unsigned char fpstate[FPSTATESIZE]; /* floating point state */
struct task_work work;
struct thread_info info;
};
#define INIT_THREAD { \

14
include/asm-m68k/thread_info.h
View File

@ -2,7 +2,6 @@
#define _ASM_M68K_THREAD_INFO_H
#include <asm/types.h>
#include <asm/processor.h>
#include <asm/page.h>
struct thread_info {
@ -35,14 +34,21 @@ struct thread_info {
#define free_thread_info(ti) free_pages((unsigned long)(ti),1)
#endif /* PAGE_SHIFT == 13 */
//#define init_thread_info (init_task.thread.info)
#define init_thread_info (init_task.thread.info)
#define init_stack (init_thread_union.stack)
#define current_thread_info() (current->thread_info)
#define task_thread_info(tsk) (&(tsk)->thread.info)
#define current_thread_info() task_thread_info(current)
#define __HAVE_THREAD_FUNCTIONS
#define setup_thread_stack(p, org) ({ \
*(struct task_struct **)(p)->thread_info = (p); \
task_thread_info(p)->task = (p); \
})
#define end_of_stack(p) ((unsigned long *)(p)->thread_info + 1)
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
#define TIF_DELAYED_TRACE 1 /* single step a syscall */
#define TIF_NOTIFY_RESUME 2 /* resumption notification requested */