Commit 851b147e authored by Linus Torvalds's avatar Linus Torvalds

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.
parents 8e44e434 85233c43
#ifndef _ASM_M32R_PAGE_H #ifndef _ASM_M32R_PAGE_H
#define _ASM_M32R_PAGE_H #define _ASM_M32R_PAGE_H
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */ /* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12 #define PAGE_SHIFT 12
#define PAGE_SIZE (1UL << PAGE_SHIFT) #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1)) #define PAGE_MASK (~(PAGE_SIZE-1))
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
......
...@@ -140,8 +140,6 @@ unsigned long get_wchan(struct task_struct *p); ...@@ -140,8 +140,6 @@ unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) ((tsk)->thread.lr) #define KSTK_EIP(tsk) ((tsk)->thread.lr)
#define KSTK_ESP(tsk) ((tsk)->thread.sp) #define KSTK_ESP(tsk) ((tsk)->thread.sp)
#define THREAD_SIZE (2*PAGE_SIZE)
#define cpu_relax() barrier() #define cpu_relax() barrier()
#endif /* _ASM_M32R_PROCESSOR_H */ #endif /* _ASM_M32R_PROCESSOR_H */
...@@ -55,6 +55,8 @@ struct thread_info { ...@@ -55,6 +55,8 @@ struct thread_info {
#define PREEMPT_ACTIVE 0x10000000 #define PREEMPT_ACTIVE 0x10000000
#define THREAD_SIZE (PAGE_SIZE << 1)
/* /*
* macros/functions for gaining access to the thread information structure * macros/functions for gaining access to the thread information structure
*/ */
...@@ -76,8 +78,6 @@ struct thread_info { ...@@ -76,8 +78,6 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info) #define init_thread_info (init_thread_union.thread_info)
#define init_stack (init_thread_union.stack) #define init_stack (init_thread_union.stack)
#define THREAD_SIZE (2*PAGE_SIZE)
/* how to get the thread information struct from C */ /* how to get the thread information struct from C */
static inline struct thread_info *current_thread_info(void) static inline struct thread_info *current_thread_info(void)
{ {
...@@ -125,17 +125,6 @@ static inline unsigned int get_thread_fault_code(void) ...@@ -125,17 +125,6 @@ static inline unsigned int get_thread_fault_code(void)
return ti->flags >> TI_FLAG_FAULT_CODE_SHIFT; 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 #endif
/* /*
......
...@@ -118,6 +118,13 @@ ...@@ -118,6 +118,13 @@
#define resume_kernel restore_all #define resume_kernel restore_all
#endif #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) ENTRY(ret_from_fork)
pop r0 pop r0
bl schedule_tail bl schedule_tail
......
...@@ -268,13 +268,13 @@ ENTRY(empty_zero_page) ...@@ -268,13 +268,13 @@ ENTRY(empty_zero_page)
/*------------------------------------------------------------------------ /*------------------------------------------------------------------------
* Stack area * Stack area
*/ */
.section .spi .section .init.data, "aw"
ALIGN ALIGN
.global spi_stack_top .global spi_stack_top
.zero 1024 .zero 1024
spi_stack_top: spi_stack_top:
.section .spu .section .init.data, "aw"
ALIGN ALIGN
.global spu_stack_top .global spu_stack_top
.zero 1024 .zero 1024
......
...@@ -4,6 +4,7 @@ ...@@ -4,6 +4,7 @@
#include <asm-generic/vmlinux.lds.h> #include <asm-generic/vmlinux.lds.h>
#include <asm/addrspace.h> #include <asm/addrspace.h>
#include <asm/page.h> #include <asm/page.h>
#include <asm/thread_info.h>
OUTPUT_ARCH(m32r) OUTPUT_ARCH(m32r)
#if defined(__LITTLE_ENDIAN__) #if defined(__LITTLE_ENDIAN__)
...@@ -40,83 +41,22 @@ SECTIONS ...@@ -40,83 +41,22 @@ SECTIONS
#endif #endif
_etext = .; /* End of text section */ _etext = .; /* End of text section */
. = ALIGN(16); /* Exception table */ EXCEPTION_TABLE(16)
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
RODATA RODATA
RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
/* 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) }
_edata = .; /* End of data section */ _edata = .; /* End of data section */
. = ALIGN(8192); /* init_task */
.data.init_task : { *(.data.init_task) }
/* will be freed after init */ /* will be freed after init */
. = ALIGN(4096); /* Init code and data */ . = ALIGN(PAGE_SIZE); /* Init code and data */
__init_begin = .; __init_begin = .;
.init.text : { INIT_TEXT_SECTION(PAGE_SIZE)
_sinittext = .; INIT_DATA_SECTION(16)
INIT_TEXT PERCPU(PAGE_SIZE)
_einittext = .; . = ALIGN(PAGE_SIZE);
}
.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_end = .; __init_end = .;
/* freed after init ends here */ /* freed after init ends here */
__bss_start = .; /* BSS */ BSS_SECTION(0, 0, 4)
.bss : { *(.bss) }
. = ALIGN(4);
__bss_stop = .;
_end = . ; _end = . ;
......
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