x32: Add struct ucontext_x32

Add a definition for struct ucontext_x32; this is inherently a mix of
the 32- and 64-bit versions.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index 1f7e625..c6435ab 100644 (file)
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -43,6 +43,15 @@ struct ucontext_ia32 {
        compat_sigset_t   uc_sigmask;   /* mask last for extensibility */
 };
 
+struct ucontext_x32 {
+       unsigned int      uc_flags;
+       unsigned int      uc_link;
+       stack_ia32_t      uc_stack;
+       unsigned int      uc__pad0;     /* needed for alignment */
+       struct sigcontext uc_mcontext;  /* the 64-bit sigcontext type */
+       compat_sigset_t   uc_sigmask;   /* mask last for extensibility */
+};
+
 /* This matches struct stat64 in glibc2.2, hence the absolutely
  * insane amounts of padding around dev_t's.
  */