- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add rs6000 to the architectures on PowerPC. It's needed by gdb(1).

MAJOR cleanup of the Bmake framework.
This includes removing all vestiges of the old not-really supported
ability to build cross tools targeting non-FreeBSD systems, such as
m68k Lynx and NetBSD. Move as much duplicated code from platform
Makefiles into the shared Makefiles. Add a simple mechanism for
specifying ELF 'ldscripts'. Also share as many .h files as possible
(now a single bfd.h vs. one per platform).

Move the elf32-target.h and elf64-target.h targets from the MD
makefiles to the centralized makefile. This not only reduces
duplication, it also makes the MD quirks stand out better and
thus improves maintenance.

Cleaner support of a DEFAULT_VECTOR.

Handle the "HAVE_" defines via the VECS list.

Update to Binutils 2.12.0 and stick to the native emulation for now.
This lets us get on the with the task at hand -- porting FreeBSD.
We can get fancy later on.

Clean up the formatting.

s/MACHINE_ARCH/TARGET_ARCH/g

The target machine is represented by TARGET_ARCH. MACHINE_ARCH always
represents the host machine. When TARGET_ARCH is not defined, it is
assumed to be equal to MACHINE_ARCH. This means that we're building a
native toolset by default. We're creating cross-compilation tools when
MACHINE_ARCH != TARGET_ARCH.

TARGET_ARCH is defined when building binutils as part of the bootstrap
build and is set to reflect the architecture we're currently cross-
building. With this change binutils is ready for cross-building.

Add support for additional architectures.