/usr/sbin/etcupdate -D/usr/obj/DESTDIRs/main-CA7-chroot -s /usr/main-src -M TARGET_ARCH=armv7 ends up building dtc !

From: Mark Millard <marklmi_at_yahoo.com>
Date: Sun, 13 Aug 2023 07:32:39 UTC
I'd noticed that the etcupdate part of my build procedure has been taking
much time. So I looked with a ps -axldww while it was going on. An
example was:

`-- /bin/sh /usr/sbin/etcupdate -D/usr/obj/DESTDIRs/main-CA7-chroot -s /usr/main-src -M TARGET_ARCH=armv7
  `-- make TARGET_ARCH=armv7 -DNO_FILEMON buildetc
    `-- make -m /usr/main-src/share/mk -f Makefile.inc1 TARGET=arm TARGET_ARCH=armv7 buildetc
      `-- make -f Makefile.inc1 _bootstrap-tools MK_CROSS_COMPILER=no MK_TOOLCHAIN=no
        . . .
             `-- /bin/sh -e -c echo "===> usr.bin/dtc (obj,all,install)";  cd /usr/main-src/usr.bin/dtc;. . . install
               `-- make DIRPRFX=usr.bin/dtc/ all
                 `-- c++ -O2 -pipe -fno-common -DNDEBUG . . . -c /usr/main-src/usr.bin/dtc/fdt.cc -o fdt.o

More may build. This is just what was present
when I happened to look.

Seems an odd thing to be happening for an etcupdate .

I'll note that aarch64 targeting aarch64 (self hosted
build) also spends notable time and is likely doing
similarly.

===
Mark Millard
marklmi at yahoo.com