Update x86_64 bits/sigcontext.h from kernel 3.4.0

ChangeLog

@@ -1,6 +1,16 @@
 2012-06-04  H.J. Lu  <[email protected]>
 
 	[BZ #14117]
+	* sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h (FP_XSTATE_MAGIC1):
+	New macro from Linux kernel 3.4.0.
+	(FP_XSTATE_MAGIC2): Likewise.
+	(FP_XSTATE_MAGIC2_SIZE): Likewise.
+	(X86_FXSR_MAGIC): New macro from Linux i386 kernel.
+	(struct _fpx_sw_bytes): New struct.
+	(struct _xsave_hdr): Likewise.
+	(struct _ymmh_state): Likewise.
+	(struct _xstate): Likewise.
+
 	* sysdeps/unix/sysv/linux/i386/sys/debugreg.h: Removed.
 	* sysdeps/unix/sysv/linux/i386/sys/reg.h: Likewise.
 	* sysdeps/unix/sysv/linux/x86_64/sys/debugreg.h: Renamed to ...

sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h

@@ -22,6 +22,19 @@
 # error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
 #endif
 
+#define FP_XSTATE_MAGIC1	0x46505853U
+#define FP_XSTATE_MAGIC2	0x46505845U
+#define FP_XSTATE_MAGIC2_SIZE	sizeof(FP_XSTATE_MAGIC2)
+
+struct _fpx_sw_bytes
+{
+  __uint32_t magic1;
+  __uint32_t extended_size;
+  __uint64_t xstate_bv;
+  __uint32_t xstate_size;
+  __uint32_t padding[7];
+};
+
 struct _fpreg
 {
   unsigned short significand[4];
@@ -75,6 +88,8 @@ struct _fpstate
 # define sigcontext_struct sigcontext
 #endif
 
+#define X86_FXSR_MAGIC		0x0000
+
 struct sigcontext
 {
   unsigned short gs, __gsh;
@@ -157,4 +172,23 @@ struct sigcontext
 
 #endif /* __x86_64__ */
 
+struct _xsave_hdr
+{
+  __uint64_t xstate_bv;
+  __uint64_t reserved1[2];
+  __uint64_t reserved2[5];
+};
+
+struct _ymmh_state
+{
+  __uint32_t ymmh_space[64];
+};
+
+struct _xstate
+{
+  struct _fpstate fpstate;
+  struct _xsave_hdr xstate_hdr;
+  struct _ymmh_state ymmh;
+};
+
 #endif /* _BITS_SIGCONTEXT_H */