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m32r: Autogenerate offsets in struct thread_info 

Maintaining offsets by hand is no fun.

Signed-off-by: Richard Weinberger <richard@nod.at>
wifi-calibration
Richard Weinberger 2015-04-03 18:20:58 +02:00
parent 7bd8301084
commit 37f078ff4c
4 changed files with 17 additions and 13 deletions
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1
arch/m32r/include/asm/asm-offsets.h 100644
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@ -0,0 +1 @@
#include <generated/asm-offsets.h>

13
arch/m32r/include/asm/thread_info.h
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@ -38,18 +38,7 @@ struct thread_info {
__u8 supervisor_stack[0];
};
#else /* !__ASSEMBLY__ */
/* offsets into the thread_info struct for assembly code access */
#define TI_TASK 0x00000000
#define TI_EXEC_DOMAIN 0x00000004
#define TI_FLAGS 0x00000008
#define TI_STATUS 0x0000000C
#define TI_CPU 0x00000010
#define TI_PRE_COUNT 0x00000014
#define TI_ADDR_LIMIT 0x00000018
#endif
#endif /* !__ASSEMBLY__ */
#define THREAD_SIZE (PAGE_SIZE << 1)
#define THREAD_SIZE_ORDER 1

15
arch/m32r/kernel/asm-offsets.c
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@ -1 +1,14 @@
/* Dummy asm-offsets.c file. Required by kbuild and ready to be used - hint! */
#include <linux/thread_info.h>
#include <linux/kbuild.h>
int foo(void)
{
OFFSET(TI_TASK, thread_info, task);
OFFSET(TI_FLAGS, thread_info, flags);
OFFSET(TI_STATUS, thread_info, status);
OFFSET(TI_CPU, thread_info, cpu);
OFFSET(TI_PRE_COUNT, thread_info, preempt_count);
OFFSET(TI_ADDR_LIMIT, thread_info, addr_limit);
return 0;
}

1
arch/m32r/kernel/entry.S
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@ -65,6 +65,7 @@
#include <asm/page.h>
#include <asm/m32r.h>
#include <asm/mmu_context.h>
#include <asm/asm-offsets.h>
#if !defined(CONFIG_MMU)
#define sys_madvise sys_ni_syscall