sigframe_ia32
OFFSET(IA32_SIGFRAME_sigcontext, sigframe_ia32, sc);
# define MAX_FRAME_SIGINFO_UCTXT_SIZE sizeof(struct sigframe_ia32)
struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
struct sigframe_ia32 __user *frame;