Author: wma
Date: Fri Sep 29 06:36:19 2017
New Revision: 324099
URL: https://svnweb.freebsd.org/changeset/base/324099
Log:
Compile loader as Little-Endian on PPC64/POWER8
Add flag to the makefile to allow loader compilation as
Little-Endian 32-bit executable.
Usage:
make WITH_LOADER_FORCE_LE=yes -C sys/boot all
Submitted by: Wojciech Macek <w...@freebsd.org>
Reviewed by: imp, nwhitehorn
Obtained from: Semihalf
Sponsored by: QCM Technologies
Differential revision: https://reviews.freebsd.org/D12421
Modified:
head/share/mk/src.opts.mk
head/sys/boot/Makefile.inc
Modified: head/share/mk/src.opts.mk
==============================================================================
--- head/share/mk/src.opts.mk Fri Sep 29 06:24:45 2017 (r324098)
+++ head/share/mk/src.opts.mk Fri Sep 29 06:36:19 2017 (r324099)
@@ -180,6 +180,7 @@ __DEFAULT_NO_OPTIONS = \
GNU_GREP_COMPAT \
HESIOD \
LIBSOFT \
+ LOADER_FORCE_LE \
NAND \
OFED \
OPENLDAP \
Modified: head/sys/boot/Makefile.inc
==============================================================================
--- head/sys/boot/Makefile.inc Fri Sep 29 06:24:45 2017 (r324098)
+++ head/sys/boot/Makefile.inc Fri Sep 29 06:36:19 2017 (r324099)
@@ -1,6 +1,6 @@
# $FreeBSD$
-.include <bsd.own.mk>
+.include <src.opts.mk>
SSP_CFLAGS=
@@ -22,3 +22,11 @@ CFLAGS.clang+= -mfpu=none
# when this test succeeds rather than require dd to be a bootstrap tool.
DD_NOSTATUS!=(dd status=none count=0 2> /dev/null && echo status=none) || true
DD=dd ${DD_NOSTATUS}
+
+.if ${MK_LOADER_FORCE_LE} != "no"
+
+.if ${MACHINE_ARCH} == "powerpc64"
+CFLAGS+= -mlittle-endian
+.endif
+
+.endif
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