I forgot to add the ChangeLog entries for these 2 patches:
b13599da1ae gdbserver: Add GNU/Linux support for ARC
e26d3e9b761 arc: Rename "arc_gdbarch_features" struct
+2020-10-07 Shahab Vahedi <shahab@synopsys.com>
+
+ * arch/arc.h: Rename "arc_gdbarch_features" to
+ "arc_arch_features".
+ * arc-tdep.h: Likewise.
+ * arc-tdep.c: Likewise.
+
2020-09-28 Gareth Rees <grees@undo.io> (tiny change)
PR python/26586
+2020-10-07 Anton Kolesov <anton.kolesov@synopsys.com>
+
+ * configure.srv: Support ARC architecture.
+ * Makefile.in: Add linux-arc-low.cc and arch/arc.o.
+ * linux-arc-low.cc: New file.
+
2020-09-23 Hannes Domani <ssbssa@yahoo.de>
* win32-low.cc: Remove local wow64_process variable.