gdb/testsuite/gdb.xml/extra-regs.xml

<target>
  <xi:include href="core-regs.xml"/>
  <feature name="extra">
    <vector id="v4int8" type="int8" count="4"/>
    <vector id="v2int16" type="int16" count="2"/>
    <union id="vecint">
      <field name="v4" type="v4int8"/>
      <field name="v2" type="v2int16"/>
    </union>

    <struct id="struct1">
      <field name="v4" type="v4int8"/>
      <field name="v2" type="v2int16"/>
    </struct>

    <struct id="struct2" size="8">
      <field name="f1" start="0" end="34"/>
      <field name="f2" start="63" end="63"/>
    </struct>

    <flags id="flags" size="4">
      <field name="X" start="0" end="0"/>
      <field name="Y" start="2" end="2"/>
    </flags>

    <enum id="Z_values" size="4">
      <evalue name="yes" value="1"/>
      <evalue name="no" value="0"/>
      <evalue name="maybe" value="2"/>
      <evalue name="so" value="3"/>
    </enum>

    <flags id="mixed_flags" size="4">
      <!-- Elided end and type. -->
      <field name="A" start="0"/>
      <!-- Elided end, unsigned int. -->
      <field name="B" start="1" type="uint32"/>
      <!-- Elided end, bool. -->
      <field name="C" start="2" type="bool"/>
      <!-- Elided type, single bitfield. -->
      <field name="D" start="3" end="3"/>
      <!-- Anonymous field. -->
      <field name="" start="4" end="5"/>
      <!-- Multi-bit bitfield, elided type. -->
      <field name="E" start="6" end="7"/>
      <!-- Enum bitfield. -->
      <field name="Z" start="8" end="9" type="Z_values"/>
    </flags>

    <reg name="extrareg" bitsize="32"/>
    <reg name="uintreg" bitsize="32" type="uint32"/>
    <reg name="vecreg" bitsize="32" type="v4int8"/>
    <reg name="unionreg" bitsize="32" type="vecint"/>
    <reg name="structreg" bitsize="64" type="struct1"/>
    <reg name="bitfields" bitsize="64" type="struct2"/>
    <reg name="flags" bitsize="32" type="flags"/>
    <reg name="mixed_flags" bitsize="32" type="mixed_flags"/>
  </feature>
</target>