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| author |   Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:20:16 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-09-27 18:20:16 +0900 |
| commit | d153ea88dccf003173315b5d21acabebb897fb4a (patch) | |
| tree | 5cdc96ef0ec58026d82c03f76250ac1833f566d4 /include/asm-sh/thread_info.h | |
| parent | sh: select CONFIG_EMBEDDED. (diff) | |
| download | linux-dev-d153ea88dccf003173315b5d21acabebb897fb4a.tar.xz linux-dev-d153ea88dccf003173315b5d21acabebb897fb4a.zip | |
sh: stack debugging support.
This adds a DEBUG_STACK_USAGE and DEBUG_STACKOVERFLOW for SH.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/thread_info.h')
| -rw-r--r-- | include/asm-sh/thread_info.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 5eb874b065a6..605259f88113 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -29,6 +29,8 @@ struct thread_info { #endif #define PREEMPT_ACTIVE 0x10000000 +#define THREAD_SIZE (PAGE_SIZE * 2) +#define STACK_WARN (THREAD_SIZE / 8) /* * macros/functions for gaining access to the thread information structure @@ -50,8 +52,6 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) -#define THREAD_SIZE (2*PAGE_SIZE) - /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { @@ -73,8 +73,12 @@ static inline struct thread_info *current_thread_info(void) } /* thread information allocation */ -#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) +#ifdef CONFIG_DEBUG_STACK_USAGE +#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) +#else +#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL) +#endif +#define free_thread_info(ti) kfree(ti) #else /* !__ASSEMBLY__ */ |