[binutils-gdb] Add cpsr_flags to aarch64 core regs.

[Doug Evans <devans at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=89c200ed1bb37d6b879f6dbadbeaf143b7782224

commit 89c200ed1bb37d6b879f6dbadbeaf143b7782224
Author: Doug Evans <dje@google.com>
Date:   Tue Mar 15 14:43:49 2016 -0700

    Add cpsr_flags to aarch64 core regs.
    
    gdb/ChangeLog:
    
    	* features/aarch64-core.xml (cpsr_flags): New flags type.
    	(cpsr): Use it.
    	* features/aarch64.c: Regenerate.

Diff:
---
 gdb/ChangeLog                 |  6 ++++++
 gdb/features/aarch64-core.xml | 23 ++++++++++++++++++++++-
 gdb/features/aarch64.c        | 19 ++++++++++++++++++-
 3 files changed, 46 insertions(+), 2 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 2f95046..ac542f0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
 2016-03-15  Doug Evans  <dje@google.com>
 
+	* features/aarch64-core.xml (cpsr_flags): New flags type.
+	(cpsr): Use it.
+	* features/aarch64.c: Regenerate.
+
+2016-03-15  Doug Evans  <dje@google.com>
+
 	* features/i386/32bit-core.xml (i386_eflags): Remove "end" spec.
 	* features/i386/32bit-sse.xml (i386_eflags): Ditto.
 	* features/i386/64bit-core.xml (i386_eflags): Ditto.
diff --git a/gdb/features/aarch64-core.xml b/gdb/features/aarch64-core.xml
index b5944fc..8f96296 100644
--- a/gdb/features/aarch64-core.xml
+++ b/gdb/features/aarch64-core.xml
@@ -42,5 +42,26 @@
   <reg name="sp" bitsize="64" type="data_ptr"/>
 
   <reg name="pc" bitsize="64" type="code_ptr"/>
-  <reg name="cpsr" bitsize="32"/>
+
+  <flags id="cpsr_flags" size="4">
+    <field name="SP" start="0" type="bool"/>
+    <field name="" start="1" end="1"/>
+    <field name="EL" start="2" end="3"/>
+    <field name="nRW" start="4" type="bool"/>
+    <field name="" start="5" end="5"/>
+    <field name="F" start="6" type="bool"/>
+    <field name="I" start="7" type="bool"/>
+    <field name="A" start="8" type="bool"/>
+    <field name="D" start="9" type="bool"/>
+
+    <field name="IL" start="20" type="bool"/>
+    <field name="SS" start="21" type="bool"/>
+
+    <field name="V" start="28" type="bool"/>
+    <field name="C" start="29" type="bool"/>
+    <field name="Z" start="30" type="bool"/>
+    <field name="N" start="31" type="bool"/>
+  </flags>
+  <reg name="cpsr" bitsize="32" type="cpsr_flags"/>
+
 </feature>
diff --git a/gdb/features/aarch64.c b/gdb/features/aarch64.c
index 1e9a99d..cec6956 100644
--- a/gdb/features/aarch64.c
+++ b/gdb/features/aarch64.c
@@ -17,6 +17,23 @@ initialize_tdesc_aarch64 (void)
   set_tdesc_architecture (result, bfd_scan_arch ("aarch64"));
 
   feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.core");
+  type = tdesc_create_flags (feature, "cpsr_flags", 4);
+  tdesc_add_flag (type, 0, "SP");
+  tdesc_add_bitfield (type, "", 1, 1);
+  tdesc_add_bitfield (type, "EL", 2, 3);
+  tdesc_add_flag (type, 4, "nRW");
+  tdesc_add_bitfield (type, "", 5, 5);
+  tdesc_add_flag (type, 6, "F");
+  tdesc_add_flag (type, 7, "I");
+  tdesc_add_flag (type, 8, "A");
+  tdesc_add_flag (type, 9, "D");
+  tdesc_add_flag (type, 20, "IL");
+  tdesc_add_flag (type, 21, "SS");
+  tdesc_add_flag (type, 28, "V");
+  tdesc_add_flag (type, 29, "C");
+  tdesc_add_flag (type, 30, "Z");
+  tdesc_add_flag (type, 31, "N");
+
   tdesc_create_reg (feature, "x0", 0, 1, NULL, 64, "int");
   tdesc_create_reg (feature, "x1", 1, 1, NULL, 64, "int");
   tdesc_create_reg (feature, "x2", 2, 1, NULL, 64, "int");
@@ -50,7 +67,7 @@ initialize_tdesc_aarch64 (void)
   tdesc_create_reg (feature, "x30", 30, 1, NULL, 64, "int");
   tdesc_create_reg (feature, "sp", 31, 1, NULL, 64, "data_ptr");
   tdesc_create_reg (feature, "pc", 32, 1, NULL, 64, "code_ptr");
-  tdesc_create_reg (feature, "cpsr", 33, 1, NULL, 32, "int");
+  tdesc_create_reg (feature, "cpsr", 33, 1, NULL, 32, "cpsr_flags");
 
   feature = tdesc_create_feature (result, "org.gnu.gdb.aarch64.fpu");
   field_type = tdesc_named_type (feature, "ieee_double");