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 - <h3 class="section">F.4 Varying Target Capabilities</h3>
 - 
 - <p>Some targets don’t support floating-point, and some would rather not
 - have to deal with <code>long long</code> operations.  Also, different targets
 - will have different stack sizes, and different bytecode buffer lengths.
 - </p>
 - <p>Thus, GDB needs a way to ask the target about itself.  We haven’t worked
 - out the details yet, but in general, GDB should be able to send the
 - target a packet asking it to describe itself.  The reply should be a
 - packet whose length is explicit, so we can add new information to the
 - packet in future revisions of the agent, without confusing old versions
 - of GDB, and it should contain a version number.  It should contain at
 - least the following information:
 - </p>
 - <ul>
 - <li> whether floating point is supported
 - 
 - </li><li> whether <code>long long</code> is supported
 - 
 - </li><li> maximum acceptable size of bytecode stack
 - 
 - </li><li> maximum acceptable length of bytecode expressions
 - 
 - </li><li> which registers are actually available for collection
 - 
 - </li><li> whether the target supports disabled tracepoints
 - 
 - </li></ul>
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