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[patch 22/29] sh: Use generic init_task

 

 

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tglx at linutronix

Apr 30, 2012, 1:16 PM

Post #1 of 2 (59 views)
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[patch 22/29] sh: Use generic init_task

Same code. Use the generic version. The special Makefile treatment is
pointless anyway as init_task.o contains only data which is handled by
the linker script. So no point on being treated like head text.

Signed-off-by: Thomas Gleixner <tglx [at] linutronix>
Cc: Paul Mundt <lethal [at] linux-sh>
---
arch/sh/Kconfig | 1 +
arch/sh/Makefile | 2 +-
arch/sh/kernel/Makefile | 2 +-
arch/sh/kernel/init_task.c | 30 ------------------------------
4 files changed, 3 insertions(+), 32 deletions(-)

Index: tip/arch/sh/Kconfig
===================================================================
--- tip.orig/arch/sh/Kconfig
+++ tip/arch/sh/Kconfig
@@ -29,6 +29,7 @@ config SUPERH
select GENERIC_ATOMIC64
select GENERIC_IRQ_SHOW
select GENERIC_SMP_IDLE_THREAD
+ select HAVE_GENERIC_INIT_TASK
help
The SuperH is a RISC processor targeted for use in embedded systems
and consumer electronics; it was also used in the Sega Dreamcast
Index: tip/arch/sh/Makefile
===================================================================
--- tip.orig/arch/sh/Makefile
+++ tip/arch/sh/Makefile
@@ -124,7 +124,7 @@ endif

export ld-bfd BITS

-head-y := arch/sh/kernel/init_task.o arch/sh/kernel/head_$(BITS).o
+head-y := arch/sh/kernel/head_$(BITS).o

core-y += arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/
Index: tip/arch/sh/kernel/Makefile
===================================================================
--- tip.orig/arch/sh/kernel/Makefile
+++ tip/arch/sh/kernel/Makefile
@@ -2,7 +2,7 @@
# Makefile for the Linux/SuperH kernel.
#

-extra-y := head_$(BITS).o init_task.o vmlinux.lds
+extra-y := head_$(BITS).o vmlinux.lds

ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
Index: tip/arch/sh/kernel/init_task.c
===================================================================
--- tip.orig/arch/sh/kernel/init_task.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-#include <linux/fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct pt_regs fake_swapper_regs;
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is 8192-byte aligned due to the
- * way process stacks are handled. This is done by having a special
- * "init_task" linker map entry..
- */
-union thread_union init_thread_union __init_task_data =
- { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);


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lethal at linux-sh

Apr 30, 2012, 3:57 PM

Post #2 of 2 (63 views)
Permalink
Re: [patch 22/29] sh: Use generic init_task [In reply to]

On Mon, Apr 30, 2012 at 08:16:02PM -0000, Thomas Gleixner wrote:
> Same code. Use the generic version. The special Makefile treatment is
> pointless anyway as init_task.o contains only data which is handled by
> the linker script. So no point on being treated like head text.
>
> Signed-off-by: Thomas Gleixner <tglx [at] linutronix>
> Cc: Paul Mundt <lethal [at] linux-sh>

Acked-by: Paul Mundt <lethal [at] linux-sh>
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