# $OpenBSD: Makefile.riscv64,v 1.19 2023/11/20 16:11:45 miod 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 SIZE?= size STRIP?= ctfstrip # 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$S -I${.OBJDIR} -I$S/arch \ -I$S/dev/pci/drm/include \ -I$S/dev/pci/drm/include/uapi CPPFLAGS= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__ -MD -MP CWARNFLAGS= -Werror -Wall -Wimplicit-function-declaration \ -Wno-pointer-sign \ -Wno-constant-conversion -Wno-address-of-packed-member \ -Wno-unused-but-set-variable -Wno-gnu-folding-constant \ -Wframe-larger-than=2047 CMACHFLAGS= -march=rv64gc -mcmodel=medany -mno-relax \ -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer CMACHFLAGS+= -ffreestanding ${NOPIE_FLAGS} SORTR= sort -R .if ${IDENT:M-DNO_PROPOLICE} CMACHFLAGS+= -fno-stack-protector .endif .if ${IDENT:M-DSMALL_KERNEL} SORTR= cat COPTIMIZE?= -Oz .endif DEBUG?= -g COPTIMIZE?= -O2 CFLAGS= ${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTIMIZE} ${COPTS} ${PIPE} AFLAGS= -D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS} LINKFLAGS= -T ld.script -X --warn-common -nopie HOSTCC?= ${CC} HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//} HOSTED_CFLAGS= ${CFLAGS} HOSTED_C= ${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $< NORMAL_C_NOP= ${CC} ${CFLAGS} ${CPPFLAGS} -fno-ret-protector -c $< NORMAL_C= ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< NORMAL_S= ${CC} ${AFLAGS} ${CPPFLAGS} ${PROF} -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= locore0.o gap.o SYSTEM_OBJ= ${SYSTEM_HEAD} ${OBJS} param.o ioconf.o SYSTEM_DEP= Makefile ${SYSTEM_OBJ} ld.script SYSTEM_LD_HEAD= @rm -f $@ SYSTEM_LD= @echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \ umask 007; \ echo ${OBJS} param.o ioconf.o vers.o | tr " " "\n" | ${SORTR} > lorder; \ ${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} `cat lorder` SYSTEM_LD_TAIL= @${SIZE} $@ .if ${DEBUG} == "-g" STRIPFLAGS= -S SYSTEM_LD_TAIL+=; umask 007; \ 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} -no-integrated-as -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} ld.script: ${_archdir}/conf/kern.ldscript cat ${_archdir}/conf/kern.ldscript | \ sed -e 's/@KERNEL_BASE_PHYS@/${KERNEL_BASE_PHYS}/' \ -e 's/@KERNEL_BASE_VIRT@/${KERNEL_BASE_VIRT}/' > ld.script gapdummy.o: echo '__asm(".section .rodata,\"a\"");' > gapdummy.c ${CC} -c ${CFLAGS} ${CPPFLAGS} gapdummy.c -o $@ makegap.sh: cp $S/conf/makegap.sh $@ MAKE_GAP = LD="${LD}" sh makegap.sh 0x00000000 gapdummy.o gap.o: Makefile makegap.sh gapdummy.o vers.o ${MAKE_GAP} vers.o: ${SYSTEM_DEP:Ngap.o} sh $S/conf/newvers.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c clean: rm -f *bsd *bsd.gdb *.[dio] [a-z]*.s assym.* \ gap.link gapdummy.c ld.script lorder makegap.sh param.c cleandir: clean rm -f Makefile *.h ioconf.c options machine ${_mach} vers.c depend obj: locore0.o: ${_archdir}/${_arch}/locore0.S assym.h copy.o copystr.o: assym.h pagezero.o: assym.h cpuswitch.o exception.o support.o: assym.h locore.o trampoline.o: assym.h hardlink-obsd: [[ ! -f /bsd ]] || cmp -s bsd /bsd || ln -f /bsd /obsd newinstall: install -F -m 700 bsd /bsd && sha256 -h /var/db/kernel.SHA256 /bsd install: update-link hardlink-obsd newinstall # pull in the dependency information .ifnmake clean . for o in ${SYSTEM_OBJ:Ngap.o} assym.h . if exists(${o:R}.d) . include "${o:R}.d" . elif exists($o) .PHONY: $o . endif . endfor .endif %RULES