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[RFC v3 7/8] Add privileged registers for s390x


The Linux kernel and thus the linux-kernel target needs access to S390x's
privileged registers. Define new features and prepare s390-tdep.* to use
them in new Linux kernel code.

gdb/ChangeLog:

	* features/s390-cr.xml: New file.
	* features/s390x-cr-linux64.xml: New file
	* features/s390x-vxcr-linux64.xml: New file
	* features/Makefile: Add s390x-cr-linux64-expedite and
	s390x-vxcr-linux64-expedite
	(WICH): Add s390x-cr-linux64.xml and s390x-vxcr-linux64.xml
	(XMLTOC): Add s390x-cr-linux64.xml and s390x-vxcr-linux64.xml
	* features/s390x-cr-linux64.c: Generated.
	* features/s390x-vxcr-linux64.c: Generated.
	* regformats/s390x-cr-linux64.dat: Generated.
	* regformats/s390x-vxcr-linux64.dat: Generated.
	* s390-tdep.h: Define regnums for control registers.
	(S390_NUM_REGS): Adjust.
	* s390-tdep.c: (s390_dwarf_regmat): Add control registers.
---
 gdb/features/Makefile                 |  11 ++-
 gdb/features/s390-cr.xml              |  26 ++++++
 gdb/features/s390x-cr-linux64.c       |  99 ++++++++++++++++++++
 gdb/features/s390x-cr-linux64.xml     |  24 +++++
 gdb/features/s390x-vxcr-linux64.c     | 169 ++++++++++++++++++++++++++++++++++
 gdb/features/s390x-vxcr-linux64.xml   |  25 +++++
 gdb/regformats/s390x-cr-linux64.dat   |  76 +++++++++++++++
 gdb/regformats/s390x-vxcr-linux64.dat | 108 ++++++++++++++++++++++
 gdb/s390-tdep.c                       |   8 +-
 gdb/s390-tdep.h                       |  23 ++++-
 10 files changed, 562 insertions(+), 7 deletions(-)
 create mode 100644 gdb/features/s390-cr.xml
 create mode 100644 gdb/features/s390x-cr-linux64.c
 create mode 100644 gdb/features/s390x-cr-linux64.xml
 create mode 100644 gdb/features/s390x-vxcr-linux64.c
 create mode 100644 gdb/features/s390x-vxcr-linux64.xml
 create mode 100644 gdb/regformats/s390x-cr-linux64.dat
 create mode 100644 gdb/regformats/s390x-vxcr-linux64.dat

diff --git a/gdb/features/Makefile b/gdb/features/Makefile
index 3bc8b5a..ac34c4e 100644
--- a/gdb/features/Makefile
+++ b/gdb/features/Makefile
@@ -78,6 +78,7 @@ WHICH = aarch64 \
 	s390-linux32v2 s390-linux64v2 s390x-linux64v2 \
 	s390-te-linux64 s390x-te-linux64 s390-vx-linux64 s390x-vx-linux64 \
 	s390-tevx-linux64 s390x-tevx-linux64 \
+	s390x-cr-linux64 s390x-vxcr-linux64 \
 	tic6x-c64xp tic6x-c64x tic6x-c62x \
 	tic6x-c64xp-linux tic6x-c64x-linux tic6x-c62x-linux
 
@@ -111,6 +112,8 @@ s390x-linux64v2-expedite = r14,r15,pswa
 s390x-te-linux64-expedite = r14,r15,pswa
 s390x-vx-linux64-expedite = r14,r15,pswa
 s390x-tevx-linux64-expedite = r14,r15,pswa
+s390x-cr-linux64-expedite = r14,r15,pswa
+s390x-vxcr-linux64-expedite = r14,r15,pswa
 tic6x-c64xp-expedite = A15,PC
 tic6x-c64x-expedite = A15,PC
 tic6x-c62x-expedite = A15,PC
@@ -220,14 +223,16 @@ XMLTOC = \
 	s390-linux64v1.xml \
 	s390-linux64v2.xml \
 	s390-te-linux64.xml \
+	s390-vx-linux64.xml \
+	s390-tevx-linux64.xml \
 	s390x-linux64.xml \
 	s390x-linux64v1.xml \
 	s390x-linux64v2.xml \
 	s390x-te-linux64.xml \
-	s390-tevx-linux64.xml \
-	s390-vx-linux64.xml \
-	s390x-tevx-linux64.xml \
 	s390x-vx-linux64.xml \
+	s390x-cr-linux64.xml \
+	s390x-tevx-linux64.xml \
+	s390x-vxcr-linux64.xml \
 	tic6x-c62x-linux.xml \
 	tic6x-c62x.xml \
 	tic6x-c64x-linux.xml \
diff --git a/gdb/features/s390-cr.xml b/gdb/features/s390-cr.xml
new file mode 100644
index 0000000..15ae4f9
--- /dev/null
+++ b/gdb/features/s390-cr.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2016 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.s390.cr">
+  <reg name="cr0" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr1" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr2" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr3" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr4" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr5" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr6" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr7" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr8" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr9" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr10" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr11" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr12" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr13" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr14" bitsize="64" type="uint64" group="control"/>
+  <reg name="cr15" bitsize="64" type="uint64" group="control"/>
+</feature>
diff --git a/gdb/features/s390x-cr-linux64.c b/gdb/features/s390x-cr-linux64.c
new file mode 100644
index 0000000..caf535b
--- /dev/null
+++ b/gdb/features/s390x-cr-linux64.c
@@ -0,0 +1,99 @@
+/* THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi:set ro:
+  Original: s390x-cr-linux64.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_s390x_cr_linux64;
+static void
+initialize_tdesc_s390x_cr_linux64 (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  struct tdesc_feature *feature;
+
+  set_tdesc_architecture (result, bfd_scan_arch ("s390:64-bit"));
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.core");
+  tdesc_create_reg (feature, "pswm", 0, 1, "psw", 64, "uint64");
+  tdesc_create_reg (feature, "pswa", 1, 1, "psw", 64, "uint64");
+  tdesc_create_reg (feature, "r0", 2, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r1", 3, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r2", 4, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r3", 5, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r4", 6, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r5", 7, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r6", 8, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r7", 9, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r8", 10, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r9", 11, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r10", 12, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r11", 13, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r12", 14, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r13", 15, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r14", 16, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r15", 17, 1, "general", 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.acr");
+  tdesc_create_reg (feature, "acr0", 18, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr1", 19, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr2", 20, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr3", 21, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr4", 22, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr5", 23, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr6", 24, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr7", 25, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr8", 26, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr9", 27, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr10", 28, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr11", 29, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr12", 30, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr13", 31, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr14", 32, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr15", 33, 1, "access", 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.fpr");
+  tdesc_create_reg (feature, "fpc", 34, 1, "float", 32, "uint32");
+  tdesc_create_reg (feature, "f0", 35, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f1", 36, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f2", 37, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f3", 38, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f4", 39, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f5", 40, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f6", 41, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f7", 42, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f8", 43, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f9", 44, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f10", 45, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f11", 46, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f12", 47, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f13", 48, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f14", 49, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f15", 50, 1, "float", 64, "ieee_double");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.cr");
+  tdesc_create_reg (feature, "cr0", 51, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr1", 52, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr2", 53, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr3", 54, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr4", 55, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr5", 56, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr6", 57, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr7", 58, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr8", 59, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr9", 60, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr10", 61, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr11", 62, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr12", 63, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr13", 64, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr14", 65, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr15", 66, 1, "control", 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.privileged");
+  tdesc_create_reg (feature, "timer", 67, 1, "system", 64, "uint64");
+  tdesc_create_reg (feature, "todcmp", 68, 1, "system", 64, "uint64");
+  tdesc_create_reg (feature, "todpreg", 69, 1, "system", 32, "uint32");
+  tdesc_create_reg (feature, "prefix", 70, 1, "system", 32, "uint32");
+
+  tdesc_s390x_cr_linux64 = result;
+}
diff --git a/gdb/features/s390x-cr-linux64.xml b/gdb/features/s390x-cr-linux64.xml
new file mode 100644
index 0000000..d38bc35
--- /dev/null
+++ b/gdb/features/s390x-cr-linux64.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2016 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!-- S/390 64-bit kernel-level code.  -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>s390:64-bit</architecture>
+  <xi:include href="s390x-core64.xml"/>
+  <xi:include href="s390-acr.xml"/>
+  <xi:include href="s390-fpr.xml"/>
+  <xi:include href="s390-cr.xml"/>
+
+  <feature name="org.gnu.gdb.s390.privileged">
+    <reg name="timer" bitsize="64" type="uint64" group="system"/>
+    <reg name="todcmp" bitsize="64" type="uint64" group="system"/>
+    <reg name="todpreg" bitsize="32" type="uint32" group="system"/>
+    <reg name="prefix" bitsize="32" type="uint32" group="system"/>
+  </feature>
+</target>
diff --git a/gdb/features/s390x-vxcr-linux64.c b/gdb/features/s390x-vxcr-linux64.c
new file mode 100644
index 0000000..36453d2
--- /dev/null
+++ b/gdb/features/s390x-vxcr-linux64.c
@@ -0,0 +1,169 @@
+/* THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi:set ro:
+  Original: s390x-vxcr-linux64.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_s390x_vxcr_linux64;
+static void
+initialize_tdesc_s390x_vxcr_linux64 (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  struct tdesc_feature *feature;
+  struct tdesc_type *field_type;
+  struct tdesc_type *type;
+
+  set_tdesc_architecture (result, bfd_scan_arch ("s390:64-bit"));
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.core");
+  tdesc_create_reg (feature, "pswm", 0, 1, "psw", 64, "uint64");
+  tdesc_create_reg (feature, "pswa", 1, 1, "psw", 64, "uint64");
+  tdesc_create_reg (feature, "r0", 2, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r1", 3, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r2", 4, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r3", 5, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r4", 6, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r5", 7, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r6", 8, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r7", 9, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r8", 10, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r9", 11, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r10", 12, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r11", 13, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r12", 14, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r13", 15, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r14", 16, 1, "general", 64, "uint64");
+  tdesc_create_reg (feature, "r15", 17, 1, "general", 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.acr");
+  tdesc_create_reg (feature, "acr0", 18, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr1", 19, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr2", 20, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr3", 21, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr4", 22, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr5", 23, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr6", 24, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr7", 25, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr8", 26, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr9", 27, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr10", 28, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr11", 29, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr12", 30, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr13", 31, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr14", 32, 1, "access", 32, "uint32");
+  tdesc_create_reg (feature, "acr15", 33, 1, "access", 32, "uint32");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.fpr");
+  tdesc_create_reg (feature, "fpc", 34, 1, "float", 32, "uint32");
+  tdesc_create_reg (feature, "f0", 35, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f1", 36, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f2", 37, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f3", 38, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f4", 39, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f5", 40, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f6", 41, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f7", 42, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f8", 43, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f9", 44, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f10", 45, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f11", 46, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f12", 47, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f13", 48, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f14", 49, 1, "float", 64, "ieee_double");
+  tdesc_create_reg (feature, "f15", 50, 1, "float", 64, "ieee_double");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.vx");
+  field_type = tdesc_named_type (feature, "ieee_single");
+  tdesc_create_vector (feature, "v4f", field_type, 4);
+
+  field_type = tdesc_named_type (feature, "ieee_double");
+  tdesc_create_vector (feature, "v2d", field_type, 2);
+
+  field_type = tdesc_named_type (feature, "int8");
+  tdesc_create_vector (feature, "v16i8", field_type, 16);
+
+  field_type = tdesc_named_type (feature, "int16");
+  tdesc_create_vector (feature, "v8i16", field_type, 8);
+
+  field_type = tdesc_named_type (feature, "int32");
+  tdesc_create_vector (feature, "v4i32", field_type, 4);
+
+  field_type = tdesc_named_type (feature, "int64");
+  tdesc_create_vector (feature, "v2i64", field_type, 2);
+
+  type = tdesc_create_union (feature, "vec128");
+  field_type = tdesc_named_type (feature, "v4f");
+  tdesc_add_field (type, "v4_float", field_type);
+  field_type = tdesc_named_type (feature, "v2d");
+  tdesc_add_field (type, "v2_double", field_type);
+  field_type = tdesc_named_type (feature, "v16i8");
+  tdesc_add_field (type, "v16_int8", field_type);
+  field_type = tdesc_named_type (feature, "v8i16");
+  tdesc_add_field (type, "v8_int16", field_type);
+  field_type = tdesc_named_type (feature, "v4i32");
+  tdesc_add_field (type, "v4_int32", field_type);
+  field_type = tdesc_named_type (feature, "v2i64");
+  tdesc_add_field (type, "v2_int64", field_type);
+  field_type = tdesc_named_type (feature, "uint128");
+  tdesc_add_field (type, "uint128", field_type);
+
+  tdesc_create_reg (feature, "v0l", 51, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v1l", 52, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v2l", 53, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v3l", 54, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v4l", 55, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v5l", 56, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v6l", 57, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v7l", 58, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v8l", 59, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v9l", 60, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v10l", 61, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v11l", 62, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v12l", 63, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v13l", 64, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v14l", 65, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v15l", 66, 1, NULL, 64, "uint64");
+  tdesc_create_reg (feature, "v16", 67, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v17", 68, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v18", 69, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v19", 70, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v20", 71, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v21", 72, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v22", 73, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v23", 74, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v24", 75, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v25", 76, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v26", 77, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v27", 78, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v28", 79, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v29", 80, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v30", 81, 1, NULL, 128, "vec128");
+  tdesc_create_reg (feature, "v31", 82, 1, NULL, 128, "vec128");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.cr");
+  tdesc_create_reg (feature, "cr0", 83, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr1", 84, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr2", 85, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr3", 86, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr4", 87, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr5", 88, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr6", 89, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr7", 90, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr8", 91, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr9", 92, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr10", 93, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr11", 94, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr12", 95, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr13", 96, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr14", 97, 1, "control", 64, "uint64");
+  tdesc_create_reg (feature, "cr15", 98, 1, "control", 64, "uint64");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.s390.privileged");
+  tdesc_create_reg (feature, "timer", 99, 1, "system", 64, "uint64");
+  tdesc_create_reg (feature, "todcmp", 100, 1, "system", 64, "uint64");
+  tdesc_create_reg (feature, "todpreg", 101, 1, "system", 32, "uint32");
+  tdesc_create_reg (feature, "prefix", 102, 1, "system", 32, "uint32");
+
+  tdesc_s390x_vxcr_linux64 = result;
+}
diff --git a/gdb/features/s390x-vxcr-linux64.xml b/gdb/features/s390x-vxcr-linux64.xml
new file mode 100644
index 0000000..30a1ceb
--- /dev/null
+++ b/gdb/features/s390x-vxcr-linux64.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2016 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!-- S/390 64-bit kernel-level code.  -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>s390:64-bit</architecture>
+  <xi:include href="s390x-core64.xml"/>
+  <xi:include href="s390-acr.xml"/>
+  <xi:include href="s390-fpr.xml"/>
+  <xi:include href="s390-vx.xml"/>
+  <xi:include href="s390-cr.xml"/>
+
+  <feature name="org.gnu.gdb.s390.privileged">
+    <reg name="timer" bitsize="64" type="uint64" group="system"/>
+    <reg name="todcmp" bitsize="64" type="uint64" group="system"/>
+    <reg name="todpreg" bitsize="32" type="uint32" group="system"/>
+    <reg name="prefix" bitsize="32" type="uint32" group="system"/>
+  </feature>
+</target>
diff --git a/gdb/regformats/s390x-cr-linux64.dat b/gdb/regformats/s390x-cr-linux64.dat
new file mode 100644
index 0000000..e8a4dd7
--- /dev/null
+++ b/gdb/regformats/s390x-cr-linux64.dat
@@ -0,0 +1,76 @@
+# THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi :set ro:
+# Generated from: s390x-cr-linux64.xml
+name:s390x_cr_linux64
+xmltarget:s390x-cr-linux64.xml
+expedite:r14,r15,pswa
+64:pswm
+64:pswa
+64:r0
+64:r1
+64:r2
+64:r3
+64:r4
+64:r5
+64:r6
+64:r7
+64:r8
+64:r9
+64:r10
+64:r11
+64:r12
+64:r13
+64:r14
+64:r15
+32:acr0
+32:acr1
+32:acr2
+32:acr3
+32:acr4
+32:acr5
+32:acr6
+32:acr7
+32:acr8
+32:acr9
+32:acr10
+32:acr11
+32:acr12
+32:acr13
+32:acr14
+32:acr15
+32:fpc
+64:f0
+64:f1
+64:f2
+64:f3
+64:f4
+64:f5
+64:f6
+64:f7
+64:f8
+64:f9
+64:f10
+64:f11
+64:f12
+64:f13
+64:f14
+64:f15
+64:cr0
+64:cr1
+64:cr2
+64:cr3
+64:cr4
+64:cr5
+64:cr6
+64:cr7
+64:cr8
+64:cr9
+64:cr10
+64:cr11
+64:cr12
+64:cr13
+64:cr14
+64:cr15
+64:timer
+64:todcmp
+32:todpreg
+32:prefix
diff --git a/gdb/regformats/s390x-vxcr-linux64.dat b/gdb/regformats/s390x-vxcr-linux64.dat
new file mode 100644
index 0000000..8c28fd1
--- /dev/null
+++ b/gdb/regformats/s390x-vxcr-linux64.dat
@@ -0,0 +1,108 @@
+# THIS FILE IS GENERATED.  -*- buffer-read-only: t -*- vi :set ro:
+# Generated from: s390x-vxcr-linux64.xml
+name:s390x_vxcr_linux64
+xmltarget:s390x-vxcr-linux64.xml
+expedite:r14,r15,pswa
+64:pswm
+64:pswa
+64:r0
+64:r1
+64:r2
+64:r3
+64:r4
+64:r5
+64:r6
+64:r7
+64:r8
+64:r9
+64:r10
+64:r11
+64:r12
+64:r13
+64:r14
+64:r15
+32:acr0
+32:acr1
+32:acr2
+32:acr3
+32:acr4
+32:acr5
+32:acr6
+32:acr7
+32:acr8
+32:acr9
+32:acr10
+32:acr11
+32:acr12
+32:acr13
+32:acr14
+32:acr15
+32:fpc
+64:f0
+64:f1
+64:f2
+64:f3
+64:f4
+64:f5
+64:f6
+64:f7
+64:f8
+64:f9
+64:f10
+64:f11
+64:f12
+64:f13
+64:f14
+64:f15
+64:v0l
+64:v1l
+64:v2l
+64:v3l
+64:v4l
+64:v5l
+64:v6l
+64:v7l
+64:v8l
+64:v9l
+64:v10l
+64:v11l
+64:v12l
+64:v13l
+64:v14l
+64:v15l
+128:v16
+128:v17
+128:v18
+128:v19
+128:v20
+128:v21
+128:v22
+128:v23
+128:v24
+128:v25
+128:v26
+128:v27
+128:v28
+128:v29
+128:v30
+128:v31
+64:cr0
+64:cr1
+64:cr2
+64:cr3
+64:cr4
+64:cr5
+64:cr6
+64:cr7
+64:cr8
+64:cr9
+64:cr10
+64:cr11
+64:cr12
+64:cr13
+64:cr14
+64:cr15
+64:timer
+64:todcmp
+32:todpreg
+32:prefix
diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index 53f50fe..78757fa 100644
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -915,9 +915,11 @@ static const short s390_dwarf_regmap[] =
   S390_F8_REGNUM, S390_F10_REGNUM, S390_F12_REGNUM, S390_F14_REGNUM,
   S390_F9_REGNUM, S390_F11_REGNUM, S390_F13_REGNUM, S390_F15_REGNUM,
 
-  /* 32-47: Control Registers (not mapped).  */
-  -1, -1, -1, -1, -1, -1, -1, -1,
-  -1, -1, -1, -1, -1, -1, -1, -1,
+  /* 32-47: Control Registers.  */
+  S390_CR0_REGNUM, S390_CR1_REGNUM, S390_CR2_REGNUM, S390_CR3_REGNUM,
+  S390_CR4_REGNUM, S390_CR5_REGNUM, S390_CR6_REGNUM, S390_CR7_REGNUM,
+  S390_CR8_REGNUM, S390_CR9_REGNUM, S390_CR10_REGNUM, S390_CR11_REGNUM,
+  S390_CR12_REGNUM, S390_CR13_REGNUM, S390_CR14_REGNUM, S390_CR15_REGNUM,
 
   /* 48-63: Access Registers.  */
   S390_A0_REGNUM, S390_A1_REGNUM, S390_A2_REGNUM, S390_A3_REGNUM,
diff --git a/gdb/s390-tdep.h b/gdb/s390-tdep.h
index 21dcb12..8d0da72 100644
--- a/gdb/s390-tdep.h
+++ b/gdb/s390-tdep.h
@@ -274,9 +274,30 @@ enum
 #define S390_V29_REGNUM 119
 #define S390_V30_REGNUM 120
 #define S390_V31_REGNUM 121
+/* Control registers.  */
+#define S390_TIMER_REGNUM 122
+#define S390_TODCMP_REGNUM 123
+#define S390_TODPREG_REGNUM 124
+#define S390_CR0_REGNUM 125
+#define S390_CR1_REGNUM 126
+#define S390_CR2_REGNUM 127
+#define S390_CR3_REGNUM 128
+#define S390_CR4_REGNUM 129
+#define S390_CR5_REGNUM 130
+#define S390_CR6_REGNUM 131
+#define S390_CR7_REGNUM 132
+#define S390_CR8_REGNUM 133
+#define S390_CR9_REGNUM 134
+#define S390_CR10_REGNUM 135
+#define S390_CR11_REGNUM 136
+#define S390_CR12_REGNUM 137
+#define S390_CR13_REGNUM 138
+#define S390_CR14_REGNUM 139
+#define S390_CR15_REGNUM 140
+#define S390_PREFIX_REGNUM 141
 
 /* Total.  */
-#define S390_NUM_REGS 122
+#define S390_NUM_REGS 142
 #define S390_NUM_GPRS 16
 #define S390_NUM_FPRS 16
 
-- 
2.8.4


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