1# $OpenBSD: Makefile.octeon,v 1.63 2023/09/06 01:47:37 jsg Exp $ 2 3# For instructions on building kernels consult the config(8) and options(4) 4# manual pages. 5# 6# N.B.: NO DEPENDENCIES ON FOLLOWING FLAGS ARE VISIBLE TO MAKEFILE 7# IF YOU CHANGE THE DEFINITION OF ANY OF THESE RECOMPILE EVERYTHING 8# DEBUG is set to -g by config if debugging is requested (config -g). 9# PROF is set to -pg by config if profiling is requested (config -p). 10 11.include <bsd.own.mk> 12 13SIZE?= size 14STRIP?= ctfstrip 15AS?= as 16CC?= cc 17LD?= ld ${ENDIAN} 18 19AS+=${ENDIAN} 20CC+=${ENDIAN} 21LD+=${ENDIAN} 22 23# source tree is located via $S relative to the compilation directory 24.ifndef S 25S!= cd ../../../..; pwd 26.endif 27 28_machdir?= $S/arch/${_mach} 29_archdir?= $S/arch/${_arch} 30 31INCLUDES= -nostdinc -I$S -I${.OBJDIR} -I$S/arch 32CPPFLAGS= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D__${_mach}__ -MD -MP 33CWARNFLAGS= -Werror -Wall -Wimplicit-function-declaration \ 34 -Wno-pointer-sign \ 35 -Wframe-larger-than=2047 36 37CMACHFLAGS= -march=mips64r2 -mno-abicalls ${ABI} -msoft-float -G 0 38CMACHFLAGS+= -ffreestanding ${NOPIE_FLAGS} 39SORTR= sort -R 40.if ${IDENT:M-DNO_PROPOLICE} 41CMACHFLAGS+= -fno-stack-protector 42.endif 43.if ${IDENT:M-DSMALL_KERNEL} 44SORTR= cat 45COPTIMIZE?= -Oz 46.endif 47.if ${COMPILER_VERSION:Mclang} 48NO_INTEGR_AS= -no-integrated-as 49CMACHFLAGS+= -fomit-frame-pointer 50CWARNFLAGS+= -Wno-address-of-packed-member -Wno-constant-conversion \ 51 -Wno-unused-but-set-variable -Wno-gnu-folding-constant 52.endif 53 54DEBUG?= -g 55COPTIMIZE?= -O2 56CFLAGS= ${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTIMIZE} ${COPTS} ${PIPE} 57AFLAGS= -D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS} 58LINKFLAGS= -e start -T ld.script -Ttext=${LINK_ADDRESS} --warn-common -nopie 59 60HOSTCC?= ${CC} 61HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//} 62HOSTED_CFLAGS= ${CFLAGS} 63HOSTED_C= ${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $< 64 65NORMAL_C_NOP= ${CC} ${CFLAGS} ${CPPFLAGS} -fno-ret-protector -c $< 66NORMAL_C= ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< 67NORMAL_S= ${CC} ${AFLAGS} ${CPPFLAGS} ${PROF} -c $< 68 69%OBJS 70 71%CFILES 72 73%SFILES 74 75# load lines for config "xxx" will be emitted as: 76# xxx: ${SYSTEM_DEP} swapxxx.o 77# ${SYSTEM_LD_HEAD} 78# ${SYSTEM_LD} swapxxx.o 79# ${SYSTEM_LD_TAIL} 80SYSTEM_HEAD= locore0.o gap.o 81SYSTEM_OBJ= ${SYSTEM_HEAD} ${OBJS} param.o ioconf.o 82SYSTEM_DEP= Makefile ${SYSTEM_OBJ} ld.script 83SYSTEM_LD_HEAD= @rm -f $@ 84SYSTEM_LD= @echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \ 85 umask 007; \ 86 echo ${OBJS} param.o ioconf.o vers.o | tr " " "\n" | ${SORTR} > lorder; \ 87 ${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} `cat lorder` 88SYSTEM_LD_TAIL= @${SIZE} $@ 89 90.if ${DEBUG} == "-g" 91STRIPFLAGS= -S 92SYSTEM_LD_TAIL+=; umask 007; \ 93 echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \ 94 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ 95 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb 96.else 97LINKFLAGS+= -S 98.endif 99 100%LOAD 101 102# cc's -MD puts the source and output paths in the dependency file; 103# since those are temp files here we need to fix it up. It also 104# puts the file in /tmp, so we use -MF to put it in the current 105# directory as assym.P and then generate assym.d from it with a 106# good target name 107assym.h: $S/kern/genassym.sh Makefile \ 108 ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf 109 cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \ 110 sh $S/kern/genassym.sh ${CC} ${NO_INTEGR_AS} ${CFLAGS} ${CPPFLAGS} -MF assym.P > assym.h.tmp 111 sed '1s/.*/assym.h: \\/' assym.P > assym.d 112 sort -u assym.h.tmp > assym.h 113 114param.c: $S/conf/param.c 115 rm -f param.c 116 cp $S/conf/param.c . 117 118param.o: param.c Makefile 119 ${NORMAL_C} 120 121mcount.o: $S/lib/libkern/mcount.c Makefile 122 ${NORMAL_C_NOP} 123 124ioconf.o: ioconf.c 125 ${NORMAL_C} 126 127ld.script: ${_machdir}/conf/ld.script 128.if ${IDENT:M-DNO_RANDOMIZE} 129 # Some broken firmware try to load ELF .openbsd.randomdata segment. 130 # This fails because the segment overlaps with the actual kernel 131 # ELF LOAD segment, and the firmware cannot allocate the memory region 132 # as it is already in use. Avoid this by omitting PT_OPENBSD_RANDOMIZE. 133 sed -e '/PT_OPENBSD_RANDOMIZE/d' \ 134 -e 's/ :openbsd_randomize//' \ 135 ${_machdir}/conf/ld.script > $@.tmp 136 mv $@.tmp $@ 137.else 138 cp ${_machdir}/conf/ld.script $@ 139.endif 140 141gapdummy.o: 142 echo '__asm(".section .rodata,\"a\"");' > gapdummy.c 143 ${CC} -c ${CFLAGS} ${CPPFLAGS} gapdummy.c -o $@ 144 145makegap.sh: 146 cp $S/conf/makegap.sh $@ 147 148MAKE_GAP = LD="${LD}" sh makegap.sh 0xefefefef gapdummy.o 149 150gap.o: Makefile makegap.sh gapdummy.o vers.o 151 ${MAKE_GAP} 152 153vers.o: ${SYSTEM_DEP:Ngap.o} 154 sh $S/conf/newvers.sh 155 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c 156 157clean: 158 rm -f *bsd *bsd.gdb *.[dio] [a-z]*.s assym.* \ 159 gap.link gapdummy.c ld.script lorder makegap.sh param.c 160 161cleandir: clean 162 rm -f Makefile *.h ioconf.c options machine ${_mach} vers.c 163 164depend obj: 165 166locore0.o: ${_machdir}/${_mach}/locore0.S assym.h 167context.o cp0access.o exception.o locore.o: assym.h 168lcore_access.o lcore_ddb.o lcore_float.o tlbhandler.o: assym.h 169mips64r2.o: assym.h 170 171hardlink-obsd: 172 [[ ! -f /bsd ]] || cmp -s bsd /bsd || ln -f /bsd /obsd 173 174newinstall: 175 install -F -m 700 bsd /bsd && sha256 -h /var/db/kernel.SHA256 /bsd 176 177install: update-link hardlink-obsd newinstall 178 179# pull in the dependency information 180.ifnmake clean 181. for o in ${SYSTEM_OBJ:Ngap.o} assym.h 182. if exists(${o:R}.d) 183. include "${o:R}.d" 184. elif exists($o) 185 .PHONY: $o 186. endif 187. endfor 188.endif 189 190%RULES 191