blackfin: Autogenerate offsets in struct thread_info

Maintaining offsets by hand is no fun.

Signed-off-by: Richard Weinberger <richard@nod.at>

diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h
index 57c3a8b..962be3f 100644 (file)
--- a/arch/blackfin/include/asm/thread_info.h
+++ b/arch/blackfin/include/asm/thread_info.h
@@ -75,15 +75,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif                         /* __ASSEMBLY__ */
 
-/*
- * Offsets in thread_info structure, used in assembly code
- */
-#define TI_TASK                0
-#define TI_EXECDOMAIN  4
-#define TI_FLAGS       8
-#define TI_CPU         12
-#define TI_PREEMPT     16
-
 /*
  * thread information flag bit numbers
  */

diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c
index 37fcae9..486560a 100644 (file)
--- a/arch/blackfin/kernel/asm-offsets.c
+++ b/arch/blackfin/kernel/asm-offsets.c
@@ -42,6 +42,12 @@ int main(void)
        DEFINE(THREAD_PC, offsetof(struct thread_struct, pc));
        DEFINE(KERNEL_STACK_SIZE, THREAD_SIZE);
 
+       /* offsets in thread_info struct */
+       OFFSET(TI_TASK, thread_info, task);
+       OFFSET(TI_FLAGS, thread_info, flags);
+       OFFSET(TI_CPU, thread_info, cpu);
+       OFFSET(TI_PREEMPT, thread_info, preempt_count);
+
        /* offsets into the pt_regs */
        DEFINE(PT_ORIG_R0, offsetof(struct pt_regs, orig_r0));
        DEFINE(PT_ORIG_P0, offsetof(struct pt_regs, orig_p0));

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index de5c2c3..1ed85dd 100644 (file)
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -18,6 +18,7 @@
 #include <asm/fixed_code.h>
 #include <asm/pseudo_instructions.h>
 #include <asm/pda.h>
+#include <asm/asm-offsets.h>
 
 #ifdef CONFIG_KGDB
 # include <linux/kgdb.h>