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# $OpenBSD: Makefile.i386,v 1.80 2011/04/15 02:41:28 guenther 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>
MKDEP?= mkdep
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. -I$S -I$S/arch
CPPFLAGS= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -MD -MP
CWARNFLAGS= -Werror -Wall -Wstrict-prototypes -Wmissing-prototypes \
-Wno-main -Wno-uninitialized -Wno-format \
-Wstack-larger-than-2047
CMACHFLAGS=
CMACHFLAGS+= -fno-builtin-printf -fno-builtin-snprintf \
-fno-builtin-vsnprintf -fno-builtin-log \
-fno-builtin-log2 -fno-builtin-malloc
.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 ${CMACHFLAGS}
LINKFLAGS= -Ttext 0xD0200120 -e start -N --warn-common
.if ${MACHINE} == "amd64"
CFLAGS+= -m32
AFLAGS+= -m32
LINKFLAGS+= -melf_i386_obsd
.endif
.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= locore.o param.o ioconf.o
SYSTEM_OBJ= ${SYSTEM_HEAD} ${OBJS}
SYSTEM_DEP= Makefile ${SYSTEM_OBJ}
SYSTEM_LD_HEAD= @rm -f $@
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 $@
DEBUG?=
.if ${DEBUG} == "-g"
LINKFLAGS+= -X
STRIPFLAGS= -g -x
SYSTEM_LD_TAIL+=; \
echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \
echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
.else
LINKFLAGS+= -S -x
.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 *.[io] [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.awk
${CC} ${CFLAGS} ${CPPFLAGS} -MT $@ -gstabs -c $S/ddb/db_structinfo.c
objdump -g db_structinfo.o | awk -f $S/ddb/parse_structinfo.awk > $@
rm -f db_structinfo.o
locore.o: ${_machdir}/${_mach}/locore.s assym.h
in_cksum.o mptramp.o kvm86call.o acpi_wakecode.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}:
rm -f /obsd
ln /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:.o=.d} assym.d ${DB_STRUCTINFO:.h=.d}
. if exists($o)
. include "$o"
. endif
. endfor
.endif
%RULES
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