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xtensa: Autogenerate offsets in struct thread_info

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Maintaining offsets by hand is no fun.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger
2015-04-12 18:10:36 +02:00
parent 3050a35fba
commit cb418fdb33
2 changed files with 8 additions and 11 deletions
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arch/xtensa/include/asm/thread_info.h
-11
View File
@@ -61,17 +61,6 @@ struct thread_info {
xtregs_user_t xtregs_user; xtregs_user_t xtregs_user;
}; };
#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
/* /*
arch/xtensa/kernel/asm-offsets.c
+8
View File
@@ -77,6 +77,14 @@ int main(void)
DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack)); DEFINE(TASK_THREAD_INFO, offsetof (struct task_struct, stack));
DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct)); DEFINE(TASK_STRUCT_SIZE, sizeof (struct task_struct));
/* offsets in thread_info struct */
OFFSET(TI_TASK, thread_info, task);
OFFSET(TI_FLAGS, thread_info, flags);
OFFSET(TI_STSTUS, 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);
/* struct thread_info (offset from start_struct) */ /* struct thread_info (offset from start_struct) */
DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra)); DEFINE(THREAD_RA, offsetof (struct task_struct, thread.ra));
DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp)); DEFINE(THREAD_SP, offsetof (struct task_struct, thread.sp));