1# $OpenBSD: Makefile.i386,v 1.145 2024/01/28 00:40:22 deraadt 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 15 16# source tree is located via $S relative to the compilation directory 17.ifndef S 18S!= cd ../../../..; pwd 19.endif 20 21_machdir?= $S/arch/${_mach} 22_archdir?= $S/arch/${_arch} 23 24INCLUDES= -nostdinc -I$S -I${.OBJDIR} -I$S/arch \ 25 -I$S/dev/pci/drm/include \ 26 -I$S/dev/pci/drm/include/uapi \ 27 -I$S/dev/pci/drm/i915 28CPPFLAGS= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -MD -MP 29CWARNFLAGS= -Werror -Wall -Wimplicit-function-declaration \ 30 -Wno-pointer-sign \ 31 -Wframe-larger-than=2047 32 33CMACHFLAGS= 34CMACHFLAGS+= -ffreestanding ${NOPIE_FLAGS} 35SORTR= sort -R 36.if ${IDENT:M-DNO_PROPOLICE} 37CMACHFLAGS+= -fno-stack-protector 38.endif 39.if ${IDENT:M-DSMALL_KERNEL} 40SORTR= cat 41COPTIMIZE?= -Oz -mno-retpoline 42.elif ${COMPILER_VERSION:Mclang} 43CMACHFLAGS+= -mretpoline 44.endif 45.if ${COMPILER_VERSION:Mclang} 46NO_INTEGR_AS= -no-integrated-as 47CWARNFLAGS+= -Wno-address-of-packed-member -Wno-constant-conversion \ 48 -Wno-unused-but-set-variable -Wno-gnu-folding-constant 49.endif 50 51DEBUG?= -g 52COPTIMIZE?= -O2 53CFLAGS= ${DEBUG} ${CWARNFLAGS} ${CMACHFLAGS} ${COPTIMIZE} ${COPTS} ${PIPE} 54AFLAGS= -D_LOCORE -x assembler-with-cpp ${CWARNFLAGS} ${CMACHFLAGS} 55LINKFLAGS= -T ld.script -X --warn-common -nopie 56 57.if ${MACHINE} == "amd64" 58CFLAGS+= -m32 59AFLAGS+= -m32 60LDFLAGS= -melf_i386 61LINKFLAGS+= ${LDFLAGS} 62.endif 63 64HOSTCC?= ${CC} 65HOSTED_CPPFLAGS=${CPPFLAGS:S/^-nostdinc$//} 66HOSTED_CFLAGS= ${CFLAGS} 67HOSTED_C= ${HOSTCC} ${HOSTED_CFLAGS} ${HOSTED_CPPFLAGS} -c $< 68 69NORMAL_C_NOP= ${CC} ${CFLAGS} ${CPPFLAGS} -fno-stack-protector -c $< 70NORMAL_C= ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< 71NORMAL_S= ${CC} ${AFLAGS} ${CPPFLAGS} ${PROF} -c $< 72 73%OBJS 74 75%CFILES 76 77%SFILES 78 79# load lines for config "xxx" will be emitted as: 80# xxx: ${SYSTEM_DEP} swapxxx.o 81# ${SYSTEM_LD_HEAD} 82# ${SYSTEM_LD} swapxxx.o 83# ${SYSTEM_LD_TAIL} 84SYSTEM_HEAD= locore0.o gap.o 85SYSTEM_OBJ= ${SYSTEM_HEAD} ${OBJS} param.o ioconf.o 86SYSTEM_DEP= Makefile ${SYSTEM_OBJ} ld.script 87SYSTEM_LD_HEAD= @rm -f $@ 88SYSTEM_LD= @echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_HEAD} vers.o $${OBJS}'; \ 89 umask 007; \ 90 echo ${OBJS} param.o ioconf.o vers.o | tr " " "\n" | ${SORTR} > lorder; \ 91 ${LD} ${LINKFLAGS} -o $@ ${SYSTEM_HEAD} `cat lorder` 92SYSTEM_LD_TAIL= @${SIZE} $@ 93 94.if ${DEBUG} == "-g" 95STRIPFLAGS= -S 96SYSTEM_LD_TAIL+=; umask 007; \ 97 echo mv $@ $@.gdb; rm -f $@.gdb; mv $@ $@.gdb; \ 98 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ 99 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb 100.else 101LINKFLAGS+= -S 102.endif 103 104.if ${SYSTEM_OBJ:Mkcov.o} && ${COMPILER_VERSION:Mclang} 105PROF= -fsanitize-coverage=trace-pc,trace-cmp 106.endif 107 108%LOAD 109 110# cc's -MD puts the source and output paths in the dependency file; 111# since those are temp files here we need to fix it up. It also 112# puts the file in /tmp, so we use -MF to put it in the current 113# directory as assym.P and then generate assym.d from it with a 114# good target name 115assym.h: $S/kern/genassym.sh Makefile \ 116 ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf 117 cat ${_archdir}/${_arch}/genassym.cf ${_machdir}/${_mach}/genassym.cf | \ 118 sh $S/kern/genassym.sh ${CC} ${NO_INTEGR_AS} ${CFLAGS} ${CPPFLAGS} -MF assym.P > assym.h.tmp 119 sed '1s/.*/assym.h: \\/' assym.P > assym.d 120 sort -u assym.h.tmp > assym.h 121 122param.c: $S/conf/param.c 123 rm -f param.c 124 cp $S/conf/param.c . 125 126param.o: param.c Makefile 127 ${NORMAL_C} 128 129mcount.o: $S/lib/libkern/mcount.c Makefile 130 ${NORMAL_C_NOP} 131 132ioconf.o: ioconf.c 133 ${NORMAL_C} 134 135ld.script: ${_machdir}/conf/ld.script 136 cp ${_machdir}/conf/ld.script $@ 137 138gapdummy.o: 139 echo '__asm(".section .rodata,\"a\"");' > gapdummy.c 140 ${CC} -c ${CFLAGS} ${CPPFLAGS} gapdummy.c -o $@ 141 142makegap.sh: 143 cp $S/conf/makegap.sh $@ 144 145MAKE_GAP = LD="${LD}" LDFLAGS="${LDFLAGS}" sh makegap.sh 0xcccccccc gapdummy.o 146 147gap.o: Makefile makegap.sh gapdummy.o vers.o 148 ${MAKE_GAP} 149 150vers.o: ${SYSTEM_DEP:Ngap.o} 151 sh $S/conf/newvers.sh 152 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c 153 154.if ${SYSTEM_OBJ:Mkcov.o} && ${COMPILER_VERSION:Mclang} 155kcov.o: $S/dev/kcov.c 156 ${NORMAL_C} -fno-sanitize-coverage=trace-pc,trace-cmp 157.endif 158 159clean: 160 rm -f *bsd *bsd.gdb *.[dio] [a-z]*.s assym.* \ 161 gap.link gapdummy.c ld.script lorder makegap.sh param.c 162 163cleandir: clean 164 rm -f Makefile *.h ioconf.c options machine ${_mach} vers.c 165 166depend obj: 167 168locore0.o: ${_machdir}/${_mach}/locore0.S assym.h 169locore.o mutex.o in_cksum.o mptramp.o: assym.h 170acpi_wakecode.o: assym.h 171 172hardlink-obsd: 173 [[ ! -f /bsd ]] || cmp -s bsd /bsd || ln -f /bsd /obsd 174 175newinstall: 176 install -F -m 700 bsd /bsd && sha256 -h /var/db/kernel.SHA256 /bsd 177 178install: update-link hardlink-obsd newinstall 179 180# pull in the dependency information 181.ifnmake clean 182. for o in ${SYSTEM_OBJ:Ngap.o} assym.h 183. if exists(${o:R}.d) 184. include "${o:R}.d" 185. elif exists($o) 186 .PHONY: $o 187. endif 188. endfor 189.endif 190 191%RULES 192