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# $OpenBSD: Makefile.armish,v 1.52 2016/04/29 12:44:52 mpi Exp $
# For instructions on building kernels consult the config(8) and options(4)
# manual pages.
#
# N.B.: NO DEPENDENCIES ON FOLLOWING FLAGS ARE VISIBLE TO MAKEFILE
# IF YOU CHANGE THE DEFINITION OF ANY OF THESE RECOMPILE EVERYTHING
# DEBUG is set to -g by config if debugging is requested (config -g).
# PROF is set to -pg by config if profiling is requested (config -p).
.include <bsd.own.mk>
SIZE?= size
STRIP?= strip
# source tree is located via $S relative to the compilation directory
.ifndef S
S!= cd ../../../..; pwd
.endif
_machdir?= $S/arch/${_mach}
_archdir?= $S/arch/${_arch}
INCLUDES= -nostdinc -I$S -I. -I$S/arch
CPPFLAGS= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__ -MD -MP
CWARNFLAGS= -Werror -Wall -Wimplicit-function-declaration \
-Wno-main -Wno-uninitialized \
-Wframe-larger-than=2047
CMACHFLAGS= -ffreestanding -msoft-float # -march=armv4 -mtune=strongarm
CMACHFLAGS+= -fno-builtin-printf -fno-builtin-snprintf \
-fno-builtin-vsnprintf -fno-builtin-log \
-fno-builtin-log2 -fno-builtin-malloc ${NOPIE_FLAGS}
.if ${IDENT:M-DNO_PROPOLICE}
CMACHFLAGS+= -fno-stack-protector
.endif
COPTS?= -O2
CFLAGS= ${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTS} ${PIPE}
AFLAGS= -D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS}
LINKFLAGS= -T ldscript --warn-common -nopie
.if ${IDENT:M-DDDB_STRUCT}
DB_STRUCTINFO= db_structinfo.h
.else
DB_STRUCTINFO=
.endif
HOSTCC?= ${CC}
HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//}
HOSTED_CFLAGS= ${CFLAGS}
HOSTED_C= ${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $<
NORMAL_C_NOP= ${CC} ${CFLAGS} ${CPPFLAGS} -c $<
NORMAL_C= ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
NORMAL_S= ${CC} ${AFLAGS} ${CPPFLAGS} -c $<
%OBJS
%CFILES
%SFILES
# load lines for config "xxx" will be emitted as:
# xxx: ${SYSTEM_DEP} swapxxx.o
# ${SYSTEM_LD_HEAD}
# ${SYSTEM_LD} swapxxx.o
# ${SYSTEM_LD_TAIL}
SYSTEM_HEAD= ${_mach}_start.o locore.o param.o ioconf.o
SYSTEM_OBJ= ${SYSTEM_HEAD} ${OBJS}
SYSTEM_DEP= Makefile ${SYSTEM_OBJ}
SYSTEM_LD_HEAD= @rm -f $@
SYSTEM_LD_HEAD+=; \
cat ${_archdir}/conf/ldscript.head ${_archdir}/conf/ldscript.tail | \
sed -e 's/@KERNEL_BASE_PHYS@/${KERNEL_BASE_PHYS}/' \
-e 's/@KERNEL_BASE_VIRT@/${KERNEL_BASE_VIRT}/' > ldscript
SYSTEM_LD= @echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \
${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} vers.o ${OBJS}
SYSTEM_LD_TAIL= @${SIZE} $@; chmod 755 $@
SYSTEM_LD_TAIL+=; \
dd if=/dev/zero of=bsd bs=1 count=1 seek=95 conv=notrunc 2>/dev/null; \
dd if=/dev/zero of=bsd bs=1 count=1 seek=127 conv=notrunc 2>/dev/null; \
dd if=/dev/zero of=bsd bs=1 count=1 seek=159 conv=notrunc 2>/dev/null
DEBUG?=
.if ${DEBUG} == "-g"
STRIPFLAGS= -S
SYSTEM_LD_TAIL+=; \
echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \
echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
.else
LINKFLAGS+= -S
.endif
%LOAD
# cc's -MD puts the source and output paths in the dependency file;
# since those are temp files here we need to fix it up. It also
# puts the file in /tmp, so we use -MF to put it in the current
# directory as assym.P and then generate assym.d from it with a
# good target name
assym.h: $S/kern/genassym.sh Makefile \
${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf
cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \
sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} -MF assym.P > assym.h.tmp
sed '1s/.*/assym.h: \\/' assym.P > assym.d
sort -u assym.h.tmp > assym.h
param.c: $S/conf/param.c
rm -f param.c
cp $S/conf/param.c .
param.o: param.c Makefile
${NORMAL_C}
mcount.o: $S/lib/libkern/mcount.c Makefile
${NORMAL_C_NOP}
ioconf.o: ioconf.c
${NORMAL_C}
vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
sh $S/conf/newvers.sh
${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
clean::
rm -f eddep *bsd *bsd.gdb tags *.[dio] [a-z]*.s \
[Ee]rrs linterrs assym.h ${DB_STRUCTINFO}
lint:
@lint -hbxncez -Dvolatile= ${CPPFLAGS} -UKGDB \
${CFILES} ioconf.c param.c | \
grep -v 'static function .* unused'
depend:
@touch $@
tags:
@echo "see $S/kern/Makefile for tags"
db_structinfo.h: $S/ddb/db_structinfo.c $S/ddb/parse_structinfo.pl
${CC} ${CFLAGS} ${CPPFLAGS} -MT $@ -gstabs -c $S/ddb/db_structinfo.c
objdump -g db_structinfo.o | perl $S/ddb/parse_structinfo.pl > $@
rm -f db_structinfo.o
${_mach}_start.o: ${_machdir}/${_mach}/${_mach}_start.S
locore.o: ${_archdir}/${_arch}/locore.S assym.h
in_cksum_arm.o fiq_subr.o bcopyinout.o copystr.o sigcode.o: assym.h
vectors.o cpuswitch.o exception.o bcopy_page.o irq_dispatch.o: assym.h
# The install target can be redefined by putting a
# install-kernel-${MACHINE_NAME} target into /etc/mk.conf
MACHINE_NAME!= uname -n
install: install-kernel-${MACHINE_NAME}
.if !target(install-kernel-${MACHINE_NAME}})
install-kernel-${MACHINE_NAME}:
cmp -s bsd /bsd || ln -f /bsd /obsd
cp bsd /nbsd
mv /nbsd /bsd
.endif
# pull in the dependency information
.if !empty(DB_STRUCTINFO) && !exists(${DB_STRUCTINFO})
${SYSTEM_OBJ}: ${DB_STRUCTINFO}
.endif
.ifnmake clean
. for o in ${SYSTEM_OBJ} assym.h ${DB_STRUCTINFO}
. if exists(${o:R}.d)
. include "${o:R}.d"
. elif exists($o)
.PHONY: $o
. endif
. endfor
.endif
%RULES
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