Add flag for gdbserver build.

2013-02-27  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* build-uclibc.sh: Add ARC_LEGACY_PTRACE_ABI defintion when
	building gdbserver.
Added support for building a big endian ARC toolchain.
Don't copy the Linux src tree if --linux-dir is not within ARC_GNU

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: No need to copy Linux sources

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

Conflicts (from cherry-pick, resolved):
	ChangeLog
	build-uclibc.sh
Allow a defconfig based build if that exists in uClibc

2013-03-15  Vineet Gupta <vgupta@synopsys.com>

	* build-uclibc.sh: Allow a defconfig based uClibc build

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-03-18  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* build-all.sh: Add --big-endian to help.
Merge branch 'arc_4_8-toolchain-dev' into arc-toolchain-mainline
Correct naming following merge.

2013-03-18  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* build-all.sh: Replace "4.8" by "mainline" throughout.
	* build-elf32.sh: Likewise.
	* build-uclibc.sh: Likewise.
	* run-elf32-tests.sh: Likewise.
	* run-uclibc-tests.sh: Likewise.