It is not 64-bit only; like the normal loader, it can load both 32-bit and 64-bit kernels. Those two flags are probably obsolete at this point and were for compatibility with pre-2.17.5 versions of binutils. Can you do a test build with the -CFLAGS+= -Wa,-mppc64bridge line removed?

On 07/11/16 03:55, Mark Millard wrote:
Is the following something that should be updated something like is indicated 
below for 11.0-BETA1? Is kboot powerpc64 specific?

# svnlite diff /usr/src/sys/boot/powerpc/Makefile
Index: /usr/src/sys/boot/powerpc/Makefile
--- /usr/src/sys/boot/powerpc/Makefile  (revision 302457)
+++ /usr/src/sys/boot/powerpc/Makefile  (working copy)
@@ -1,5 +1,9 @@
  # $FreeBSD$
-SUBDIR= boot1.chrp kboot ofw ps3 uboot
+SUBDIR=                boot1.chrp
+.if ${MACHINE_ARCH} == "powerpc64"
+SUBDIR+=               kboot
+SUBDIR+=               ofw ps3 uboot
.include <>

I ask because I'd submitted 206303 back on 2016-jan-16 reporting that 
TARGET_ARCH=powerpc WITH_BOOT= was stopped by getting a -Wc,-mppc64bride and a 
-mcpu=powerpc64 (one of the base/head/sys/boot/powerpc/kboot/Makefile SRCS 
being ppc64_elf_freebsd.c).

Mark Millard
markmi at

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