[Linuxarm] [RESEND PATCH v2 0/2] scripts/gdb: clarify the platforms supporting lx_current and add arm64 support

lx_current depends on per_cpu current_task variable which exists on x86 only. so it actually works on x86 only. the 1st patch documents this clearly; the 2nd patch adds support for arm64.

-resend resending to Andrew as Kieran Bingham explained patches of scripts/gdb usually go through the tree of Andrew Morton;

Barry Song (2): scripts/gdb: document lx_current is only supported by x86 scripts/gdb: add lx_current support for arm64

.../dev-tools/gdb-kernel-debugging.rst | 2 +- scripts/gdb/linux/cpus.py | 23 +++++++++++++++++-- 2 files changed, 22 insertions(+), 3 deletions(-)