From: Al Viro <[email protected]>
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 <[email protected]>
Signed-off-by: Roman Zippel <[email protected]>
---
arch/m68k/kernel/asm-offsets.c | 5 +++++
include/asm-m68k/processor.h | 2 ++
include/asm-m68k/thread_info.h | 14 ++++++++++----
3 files changed, 17 insertions(+), 4 deletions(-)
Index: linux-2.6-mm/arch/m68k/kernel/asm-offsets.c
===================================================================
--- linux-2.6-mm.orig/arch/m68k/kernel/asm-offsets.c 2005-09-01 13:21:50.000000000 +0200
+++ linux-2.6-mm/arch/m68k/kernel/asm-offsets.c 2005-09-01 21:04:36.173703799 +0200
@@ -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));
Index: linux-2.6-mm/include/asm-m68k/processor.h
===================================================================
--- linux-2.6-mm.orig/include/asm-m68k/processor.h 2005-09-01 13:21:50.000000000 +0200
+++ linux-2.6-mm/include/asm-m68k/processor.h 2005-09-01 21:04:36.184701909 +0200
@@ -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 { \
Index: linux-2.6-mm/include/asm-m68k/thread_info.h
===================================================================
--- linux-2.6-mm.orig/include/asm-m68k/thread_info.h 2005-09-01 13:21:50.000000000 +0200
+++ linux-2.6-mm/include/asm-m68k/thread_info.h 2005-09-01 21:04:36.216696412 +0200
@@ -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 */
-
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