IA64 has a special crafted version of init_task, but I could not
figure out why it couldn't work with the generic one.
The special Makefile treatment is pointless 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@xxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
---
arch/ia64/Kconfig | 1 +
arch/ia64/Makefile | 2 +-
arch/ia64/kernel/Makefile | 2 +-
arch/ia64/kernel/init_task.c | 42 ------------------------------------------
4 files changed, 3 insertions(+), 44 deletions(-)
Index: tip/arch/ia64/Kconfig
===================================================================
--- tip.orig/arch/ia64/Kconfig
+++ tip/arch/ia64/Kconfig
@@ -34,6 +34,7 @@ config IA64
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_IOMAP
select GENERIC_SMP_IDLE_THREAD
+ select HAVE_GENERIC_INIT_TASK
default y
help
The Itanium Processor Family is Intel's 64-bit successor to
Index: tip/arch/ia64/Makefile
===================================================================
--- tip.orig/arch/ia64/Makefile
+++ tip/arch/ia64/Makefile
@@ -42,7 +42,7 @@ $(error Sorry, you need a newer version
endif
KBUILD_CFLAGS += $(cflags-y)
-head-y := arch/ia64/kernel/head.o arch/ia64/kernel/init_task.o
+head-y := arch/ia64/kernel/head.o
libs-y += arch/ia64/lib/
core-y += arch/ia64/kernel/ arch/ia64/mm/
Index: tip/arch/ia64/kernel/Makefile
===================================================================
--- tip.orig/arch/ia64/kernel/Makefile
+++ tip/arch/ia64/kernel/Makefile
@@ -6,7 +6,7 @@ ifdef CONFIG_DYNAMIC_FTRACE
CFLAGS_REMOVE_ftrace.o = -pg
endif
-extra-y := head.o init_task.o vmlinux.lds
+extra-y := head.o vmlinux.lds
obj-y := entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o \
irq_lsapic.o ivt.o machvec.o pal.o paravirt_patchlist.o patch.o process.o perfmon.o ptrace.o sal.o \
Index: tip/arch/ia64/kernel/init_task.c
===================================================================
--- tip.orig/arch/ia64/kernel/init_task.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * This is where we statically allocate and initialize the initial
- * task.
- *
- * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@xxxxxxxxxx>
- */
-
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.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);
-/*
- * Initial task structure.
- *
- * We need to make sure that this is properly aligned due to the way process stacks are
- * handled. This is done by having a special ".data..init_task" section...
- */
-#define init_thread_info init_task_mem.s.thread_info
-
-union {
- struct {
- struct task_struct task;
- struct thread_info thread_info;
- } s;
- unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
-} init_task_mem asm ("init_task") __init_task_data =
- {{
- .task = INIT_TASK(init_task_mem.s.task),
- .thread_info = INIT_THREAD_INFO(init_task_mem.s.task)
-}};
-
-EXPORT_SYMBOL(init_task);
--
To unsubscribe from this list: send the line "unsubscribe linux-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
