x86: tracehook: asm/syscall.h

Add asm/syscall.h for x86 with all the required entry points.
This will allow arch-independent tracing code for system calls.

Signed-off-by: Roland McGrath <roland@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 8a71db803da6..91a77f5c4678 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -213,6 +213,11 @@ static inline unsigned long frame_pointer(struct pt_regs *regs)
         return regs->bp;
 }
 
+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+        return regs->sp;
+}
+
 /*
  * These are defined as per linux/ptrace.h, which see.
  */