[PATCH] sh: task_pt_regs()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/asm-sh/ptrace.h b/include/asm-sh/ptrace.h
index 0f75e16a7415..85aa0f4de819 100644
--- a/include/asm-sh/ptrace.h
+++ b/include/asm-sh/ptrace.h
@@ -91,6 +91,16 @@ struct pt_dspregs {
 #define instruction_pointer(regs) ((regs)->pc)
 extern void show_regs(struct pt_regs *);
 
+#ifdef CONFIG_SH_DSP
+#define task_pt_regs(task) \
+        ((struct pt_regs *) ((unsigned long)(task)->thread_info + THREAD_SIZE \
+                 - sizeof(struct pt_dspregs) - sizeof(unsigned long)) - 1)
+#else
+#define task_pt_regs(task) \
+        ((struct pt_regs *) ((unsigned long)(task)->thread_info + THREAD_SIZE \
+                 - sizeof(unsigned long)) - 1)
+#endif
+
 static inline unsigned long profile_pc(struct pt_regs *regs)
 {
         unsigned long pc = instruction_pointer(regs);