diff options
Diffstat (limited to 'arch/sh/kernel/asm-offsets.c')
-rw-r--r-- | arch/sh/kernel/asm-offsets.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/sh/kernel/asm-offsets.c b/arch/sh/kernel/asm-offsets.c new file mode 100644 index 000000000000..dc6725c51a89 --- /dev/null +++ b/arch/sh/kernel/asm-offsets.c | |||
@@ -0,0 +1,32 @@ | |||
1 | /* | ||
2 | * This program is used to generate definitions needed by | ||
3 | * assembly language modules. | ||
4 | * | ||
5 | * We use the technique used in the OSF Mach kernel code: | ||
6 | * generate asm statements containing #defines, | ||
7 | * compile this file to assembler, and then extract the | ||
8 | * #defines from the assembly-language output. | ||
9 | */ | ||
10 | |||
11 | #include <linux/stddef.h> | ||
12 | #include <linux/types.h> | ||
13 | #include <linux/mm.h> | ||
14 | #include <asm/thread_info.h> | ||
15 | |||
16 | #define DEFINE(sym, val) \ | ||
17 | asm volatile("\n->" #sym " %0 " #val : : "i" (val)) | ||
18 | |||
19 | #define BLANK() asm volatile("\n->" : : ) | ||
20 | |||
21 | int main(void) | ||
22 | { | ||
23 | /* offsets into the thread_info struct */ | ||
24 | DEFINE(TI_TASK, offsetof(struct thread_info, task)); | ||
25 | DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain)); | ||
26 | DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); | ||
27 | DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); | ||
28 | DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count)); | ||
29 | DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block)); | ||
30 | |||
31 | return 0; | ||
32 | } | ||