ppc64_linux_convert_from_func_ptr_addr broken

ppc64_linux_convert_from_func_ptr_addr is broken in many
ways:

- despite its name get_target_memory_unsigned does not read
memory, but
  section contents, thus it will return some unrelocated
value instead of
  the real memory contents.
- target_section_by_addr also matches unrelocated section
addresses, thus
  can return a section that has nothing to do with the
running process.

I get much better results when reverting the function to the
state before
this commit:

2003-10-24  Andrew Cagney  <cagneyredhat.com>

	* target.c: Include "gdbcore.h".
	(get_target_memory, get_target_memory_unsigned): New
functions.
	* target.h (get_target_memory, get_target_memory_unsigned):
Declare.
	* ppc-linux-tdep.c
(ppc64_linux_convert_from_func_ptr_addr):
	Use get_target_memory_unsigned.
	* Makefile.in (target.o): Update dependencies.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwabsuse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg,
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