[RFA] Make type of $pc a pointer to function

[Joel Brobecker <brobecker at adacore dot com>]

Hello,

This is a followup on:
http://www.sourceware.org/ml/gdb-patches/2008-01/msg00699.html.

I introduced a test for "ptype $pc", and Daniel remarked that some
targets where not returning a function pointer type, except that
they should.

I found that we're not outputing the expected type on ia64 (used
ia64-linux to demonstrate the problem), and traced it down to
std-regs.c:value_of_builtin_frame_pc_reg which creates a value
whose type is builtin_type_void_data_ptr. So this explains why
we get "void *" as the type of $pc.

2008-01-31  Joel Brobecker  <brobecker@adacore.com>

        * std-regs.c (value_of_builtin_frame_pc_reg): Change the returned
        value type to builtin_type_void_func_ptr.

Tested on ia64-linux, fixes gdb.base/ptype.exp: ptype $pc.
No regression.

Does this look OK?

Thanks,
-- 
Joel

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