Gdb/Enum-Target-Types
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G.4 Enum Target Types
Enum target types are useful in ‘struct
’ and ‘flags
’
register descriptions. See Target Description Format.
Enum types have a name, size and a list of name/value pairs.
<enum id="id" size="size"> <evalue name="name" value="value"/> … </enum>
Enums must be defined before they are used.
<enum id="levels_type" size="4"> <evalue name="low" value="0"/> <evalue name="high" value="1"/> </enum> <flags id="flags_type" size="4"> <field name="X" start="0"/> <field name="LEVEL" start="1" end="1" type="levels_type"/> </flags> <reg name="flags" bitsize="32" type="flags_type"/>
Given that description, a value of 3 for the ‘flags
’ register
would be printed as:
(gdb) info register flags flags 0x3 [ X LEVEL=high ]