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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 17:25:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 17:25:09 -0700
commit851b147e4411df6a1e7e90e2a609773c277eefd2 (patch)
tree3d3dd17a4e3ff0a6fd0c571d449085d411f7dc17 /arch/m32r
parent8e44e4347735229b518cc02938c351428bcd7492 (diff)
parent85233c43f7fece10a3ea8ed34f0d546b8dd3a435 (diff)
downloadlinux-stericsson-851b147e4411df6a1e7e90e2a609773c277eefd2.tar.gz
Merge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev
* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev: m32r: Cleanup linker script using new linker script macros. m32r: Move the spi_stack_top and spu_stack_top into .init.data section. m32r: Remove unused .altinstructions and .exit.* code from linker script. m32r: Move GET_THREAD_INFO definition out of asm/thread_info.h. m32r: Define THREAD_SIZE only once. m32r: make PAGE_SIZE available to assembly.
Diffstat (limited to 'arch/m32r')
-rw-r--r--arch/m32r/include/asm/page.h4
-rw-r--r--arch/m32r/include/asm/processor.h2
-rw-r--r--arch/m32r/include/asm/thread_info.h15
-rw-r--r--arch/m32r/kernel/entry.S7
-rw-r--r--arch/m32r/kernel/head.S4
-rw-r--r--arch/m32r/kernel/vmlinux.lds.S78
6 files changed, 23 insertions, 87 deletions
diff --git a/arch/m32r/include/asm/page.h b/arch/m32r/include/asm/page.h
index 11777f7a5628..725ede8f2889 100644
--- a/arch/m32r/include/asm/page.h
+++ b/arch/m32r/include/asm/page.h
@@ -1,9 +1,11 @@
#ifndef _ASM_M32R_PAGE_H
#define _ASM_M32R_PAGE_H
+#include <linux/const.h>
+
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
#ifndef __ASSEMBLY__
diff --git a/arch/m32r/include/asm/processor.h b/arch/m32r/include/asm/processor.h
index 1a997fc148a2..8397c249989b 100644
--- a/arch/m32r/include/asm/processor.h
+++ b/arch/m32r/include/asm/processor.h
@@ -140,8 +140,6 @@ unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.lr)
#define KSTK_ESP(tsk) ((tsk)->thread.sp)
-#define THREAD_SIZE (2*PAGE_SIZE)
-
#define cpu_relax() barrier()
#endif /* _ASM_M32R_PROCESSOR_H */
diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h
index 71578151a403..ed240b6e8e77 100644
--- a/arch/m32r/include/asm/thread_info.h
+++ b/arch/m32r/include/asm/thread_info.h
@@ -55,6 +55,8 @@ struct thread_info {
#define PREEMPT_ACTIVE 0x10000000
+#define THREAD_SIZE (PAGE_SIZE << 1)
+
/*
* macros/functions for gaining access to the thread information structure
*/
@@ -76,8 +78,6 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack)
-#define THREAD_SIZE (2*PAGE_SIZE)
-
/* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void)
{
@@ -125,17 +125,6 @@ static inline unsigned int get_thread_fault_code(void)
return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT;
}
-#else /* !__ASSEMBLY__ */
-
-#define THREAD_SIZE 8192
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg) GET_THREAD_INFO reg
- .macro GET_THREAD_INFO reg
- ldi \reg, #-THREAD_SIZE
- and \reg, sp
- .endm
-
#endif
/*
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 612d35b082a6..403869833b98 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -118,6 +118,13 @@
#define resume_kernel restore_all
#endif
+/* how to get the thread information struct from ASM */
+#define GET_THREAD_INFO(reg) GET_THREAD_INFO reg
+ .macro GET_THREAD_INFO reg
+ ldi \reg, #-THREAD_SIZE
+ and \reg, sp
+ .endm
+
ENTRY(ret_from_fork)
pop r0
bl schedule_tail
diff --git a/arch/m32r/kernel/head.S b/arch/m32r/kernel/head.S
index 0a7194439eb1..a46652dd83e6 100644
--- a/arch/m32r/kernel/head.S
+++ b/arch/m32r/kernel/head.S
@@ -268,13 +268,13 @@ ENTRY(empty_zero_page)
/*------------------------------------------------------------------------
* Stack area
*/
- .section .spi
+ .section .init.data, "aw"
ALIGN
.global spi_stack_top
.zero 1024
spi_stack_top:
- .section .spu
+ .section .init.data, "aw"
ALIGN
.global spu_stack_top
.zero 1024
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index de5e21cca6a5..8ceb6181d805 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -4,6 +4,7 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/addrspace.h>
#include <asm/page.h>
+#include <asm/thread_info.h>
OUTPUT_ARCH(m32r)
#if defined(__LITTLE_ENDIAN__)
@@ -40,83 +41,22 @@ SECTIONS
#endif
_etext = .; /* End of text section */
- . = ALIGN(16); /* Exception table */
- __start___ex_table = .;
- __ex_table : { *(__ex_table) }
- __stop___ex_table = .;
-
+ EXCEPTION_TABLE(16)
RODATA
-
- /* writeable */
- .data : { /* Data */
- *(.spu)
- *(.spi)
- DATA_DATA
- CONSTRUCTORS
- }
-
- . = ALIGN(4096);
- __nosave_begin = .;
- .data_nosave : { *(.data.nosave) }
- . = ALIGN(4096);
- __nosave_end = .;
-
- . = ALIGN(32);
- .data.cacheline_aligned : { *(.data.cacheline_aligned) }
-
+ RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
_edata = .; /* End of data section */
- . = ALIGN(8192); /* init_task */
- .data.init_task : { *(.data.init_task) }
-
/* will be freed after init */
- . = ALIGN(4096); /* Init code and data */
+ . = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .;
- .init.text : {
- _sinittext = .;
- INIT_TEXT
- _einittext = .;
- }
- .init.data : { INIT_DATA }
- . = ALIGN(16);
- __setup_start = .;
- .init.setup : { *(.init.setup) }
- __setup_end = .;
- __initcall_start = .;
- .initcall.init : {
- INITCALLS
- }
- __initcall_end = .;
- __con_initcall_start = .;
- .con_initcall.init : { *(.con_initcall.init) }
- __con_initcall_end = .;
- SECURITY_INIT
- . = ALIGN(4);
- __alt_instructions = .;
- .altinstructions : { *(.altinstructions) }
- __alt_instructions_end = .;
- .altinstr_replacement : { *(.altinstr_replacement) }
- /* .exit.text is discard at runtime, not link time, to deal with references
- from .altinstructions and .eh_frame */
- .exit.text : { EXIT_TEXT }
- .exit.data : { EXIT_DATA }
-
-#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(4096);
- __initramfs_start = .;
- .init.ramfs : { *(.init.ramfs) }
- __initramfs_end = .;
-#endif
-
- PERCPU(4096)
- . = ALIGN(4096);
+ INIT_TEXT_SECTION(PAGE_SIZE)
+ INIT_DATA_SECTION(16)
+ PERCPU(PAGE_SIZE)
+ . = ALIGN(PAGE_SIZE);
__init_end = .;
/* freed after init ends here */
- __bss_start = .; /* BSS */
- .bss : { *(.bss) }
- . = ALIGN(4);
- __bss_stop = .;
+ BSS_SECTION(0, 0, 4)
_end = . ;