[RFC 09/10] alpha: vmlinux.lds cleanup - use THREAD_SIZE macro

gorcunov
2008-02-27T21:03:29Z

[-- Attachment #1: alpha-vmlinux --]
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This patch modifies thread_info.h header to be able to include it
into linker script and then we're able to use THREAD_SIZE in
vmlinux.lds

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
---

arch/alpha/kernel/vmlinux.lds.S | 3 ++-
include/asm-alpha/thread_info.h | 9 ++++++---
2 files changed, 8 insertions(+), 4 deletions(-)

Index: linux-2.6.git/arch/alpha/kernel/vmlinux.lds.S
===================================================================
--- linux-2.6.git.orig/arch/alpha/kernel/vmlinux.lds.S 2008-02-27 21:48:19.000000000 +0300
+++ linux-2.6.git/arch/alpha/kernel/vmlinux.lds.S 2008-02-27 22:05:37.000000000 +0300
@@ -1,5 +1,6 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
+#include <asm/thread_info.h>

OUTPUT_FORMAT("elf64-alpha")
OUTPUT_ARCH(alpha)
@@ -88,7 +89,7 @@ SECTIONS

PERCPU(PAGE_SIZE)

- . = ALIGN(2 * PAGE_SIZE);
+ . = ALIGN(THREAD_SIZE);
__init_end = .;
/* Freed after init ends here */

Index: linux-2.6.git/include/asm-alpha/thread_info.h
===================================================================
--- linux-2.6.git.orig/include/asm-alpha/thread_info.h 2008-02-27 21:48:28.000000000 +0300
+++ linux-2.6.git/include/asm-alpha/thread_info.h 2008-02-27 22:05:37.000000000 +0300
@@ -7,9 +7,7 @@
#include <asm/processor.h>
#include <asm/types.h>
#include <asm/hwrpb.h>
-#endif

-#ifndef __ASSEMBLY__
struct thread_info {
struct pcb_struct pcb; /* palcode state */

@@ -50,13 +48,14 @@ register struct thread_info *__current_t
#define current_thread_info() __current_thread_info

/* Thread information allocation. */
-#define THREAD_SIZE (2*PAGE_SIZE)
#define alloc_thread_info(tsk) \
((struct thread_info *) __get_free_pages(GFP_KERNEL,1))
#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)

#endif /* __ASSEMBLY__ */

+#define THREAD_SIZE (2 * PAGE_SIZE)
+
#define PREEMPT_ACTIVE 0x40000000

/*
@@ -94,6 +93,8 @@ register struct thread_info *__current_t
#define ALPHA_UAC_MASK (1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
1 << TIF_UAC_SIGBUS)

+#ifndef __ASSEMBLY__
+
#define SET_UNALIGN_CTL(task,value) ({ \
task_thread_info(task)->flags = ((task_thread_info(task)->flags & \
~ALPHA_UAC_MASK) \
@@ -112,5 +113,7 @@ register struct thread_info *__current_t
(int __user *)(value)); \
})

+#endif /* __ASSEMBLY__ */
+
#endif /* __KERNEL__ */
#endif /* _ALPHA_THREAD_INFO_H */

--