lkml.org 
[lkml]   [2018]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH 1/8] cris: Make THREAD_SIZE available to vmlinux.lds
From
Date
Make THREAD_SIZE available to vmlinux.lds on cris by moving it to
asm/thread_info.h and including that from the linker script.

This allows init_stack to be allocated in the linker script in a subsequent
patch.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
cc: Mikael Starvik <starvik@axis.com>
cc: Jesper Nilsson <jesper.nilsson@axis.com>
cc: linux-cris-kernel@axis.com
---

arch/cris/include/asm/processor.h | 7 -------
arch/cris/include/asm/thread_info.h | 7 +++++++
arch/cris/kernel/vmlinux.lds.S | 1 +
3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h
index 124dd5ec7f65..b50907799cb2 100644
--- a/arch/cris/include/asm/processor.h
+++ b/arch/cris/include/asm/processor.h
@@ -26,13 +26,6 @@ struct task_struct;
*/
#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))

-/* THREAD_SIZE is the size of the thread_info/kernel_stack combo.
- * normally, the stack is found by doing something like p + THREAD_SIZE
- * in CRIS, a page is 8192 bytes, which seems like a sane size
- */
-#define THREAD_SIZE PAGE_SIZE
-#define THREAD_SIZE_ORDER (0)
-
/*
* At user->kernel entry, the pt_regs struct is stacked on the top of the kernel-stack.
* This macro allows us to find those regs for a task.
diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
index 472830c90997..108f77081a3c 100644
--- a/arch/cris/include/asm/thread_info.h
+++ b/arch/cris/include/asm/thread_info.h
@@ -20,6 +20,13 @@
#endif


+/* THREAD_SIZE is the size of the thread_info/kernel_stack combo.
+ * normally, the stack is found by doing something like p + THREAD_SIZE
+ * in CRIS, a page is 8192 bytes, which seems like a sane size
+ */
+#define THREAD_SIZE PAGE_SIZE
+#define THREAD_SIZE_ORDER (0)
+
/*
* low level task data that entry.S needs immediate access to
* - this struct should fit entirely inside of one cache line
diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S
index 6d1dbc1ba767..9b232e0f673e 100644
--- a/arch/cris/kernel/vmlinux.lds.S
+++ b/arch/cris/kernel/vmlinux.lds.S
@@ -11,6 +11,7 @@

#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
+#include <asm/thread_info.h>

#ifdef CONFIG_ETRAX_VMEM_SIZE
#define __CONFIG_ETRAX_VMEM_SIZE CONFIG_ETRAX_VMEM_SIZE
\
 
 \ /
  Last update: 2018-01-18 00:21    [W:0.062 / U:1.968 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site