[RFC] patch to refactor ppc64 specific code from ppc-linux-tdep

[Andreas Tobler <andreast-list at fgznet dot ch>]

Hi all,

in order to avoid code duplication for the FreeBSD powerpc port I
started to cut off common code from ppc-linux-tdep.c into a new file to
be used for FreeBSD and GNU/Linux PowerPC 64-bit. The file name is open
so far. Better namings are welcome.

Attached my first attempt, tested on GNU/Linux ppc64, Fedora 17 and on
x86_64-*freebsd* with --eanble-targets=all. On the Linux side I do not
see any regression.
So far I have only covered functions which I can use on FreeBSD
powerpc64. There might be others too but I do not see any for now.

I'd appreciate comments, corrections.

TIA,
Andreas

2012-12-19  Andreas Tobler  <andreast@neon.andreas.nets>

	* Makefile.in (ALL_TARGET_OBS): Add new file ppc64-common-tdep.o
	(HFILES_NO_SRCDIR): Likewise.
	(ALLDEPFILES): Likewise.
	* configure.tgt: Add new file for powerpc-linux.
	* ppc64-common-tdep.h: New file.
	* ppc64-common-tdep.c New file.
	(insn_d, insn_ds, insn_xfx, read_insn)
	(insns_match_pattern, insn_d_field, insn_ds_field)
	(ppc64_desc_entry_point): Move from ppc-linux-tdep.c to here.
	(PPC64_STANDARD_LINKAGE1_LEN, PPC64_STANDARD_LINKAGE2_LEN)
	(PPC64_STANDARD_LINKAGE2_LEN): Likewise and use ARRAY_SIZE macro.
	(ppc64_standard_linkage1_target, ppc64_standard_linkage2_target)
	(ppc64_standard_linkage3_target, ppc64_skip_trampoline_code): Move
	from ppc-linux-tdep.c to here.
	(ppc64_convert_from_func_ptr_addr): Rename it from
	ppc64_linux_convert_from_func_ptr_addr to
	ppc64_convert_from_func_ptr_addr and move it from ppc-linux-tdep.c to
	here.
	* ppc-linux-tdep.c: Include ppc64-common-tdep.h.
	Removed above functions.
	(ppc_linux_init_abi): Rename
	ppc64_linux_convert_from_func_ptr_addr to
	ppc64_linux_convert_from_func_ptr_addr.

Attachment: ppc64_common.diff
Description: Text document