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Makefile.riscv revision 1.3 
      1 #	$NetBSD: Makefile.riscv,v 1.3 2018/09/22 12:24:03 rin Exp $
      2 
      3 # Makefile for NetBSD
      4 #
      5 # This makefile is constructed from a machine description:
      6 #	config machineid
      7 # Most changes should be made in the machine description
      8 #	/sys/arch/<machine>/conf/``machineid''
      9 # after which you should do
     10 #	config machineid
     11 # Machine generic makefile changes should be made in
     12 #	/sys/arch/riscv/conf/Makefile.riscv
     13 # after which config should be rerun for all machines of that type.
     14 #
     15 # To specify debugging, add the config line: makeoptions DEBUG="-g"
     16 # A better way is to specify -g only for a few files.
     17 #
     18 #	makeoptions DEBUGLIST="uvm* trap if_*"
     19 
     20 USETOOLS?=	no
     21 NEED_OWN_INSTALL_TARGET?=no
     22 .include <bsd.own.mk>
     23 
     24 ##
     25 ## (1) port identification
     26 ##
     27 .ifndef S
     28 S=		../../../..
     29 .endif
     30 THISRISCV=	$S/arch/${MACHINE}
     31 RISCV=		$S/arch/riscv
     32 GENASSYM_CONF=	${RISCV}/riscv/genassym.cf
     33 .-include "${THISRISCV}/conf/Makefile.${MACHINE}.inc"
     34 
     35 ##
     36 ## (2) compile settings
     37 ##
     38 ## Note: -ffixed-?? must be kept in sync with cpu.h.
     39 ##
     40 CPPFLAGS+=	-D${MACHINE}
     41 CFLAGS+=	-mcmodel=medany
     42 CFLAGS+=	-msoft-float
     43 .if !defined(LP64) || ${LP64} == "no"
     44 CFLAGS+=	-m32
     45 AFLAGS+=	-m32
     46 LDFLAGS+=	-m elf32lriscv
     47 LINKFORMAT+=	-m elf32lriscv
     48 SYSTEM_LD_TAIL_EXTRA+= \
     49 		;echo ${OBJCOPY} -O elf32-littleriscv $@ $@.elf32; \
     50 		${OBJCOPY} -O elf32-littleriscv $@ $@.elf32
     51 .endif # LP64=no
     52 AFLAGS+=	-x assembler-with-cpp ${AOPTS}
     53 
     54 ##
     55 ## (3) libkern and compat
     56 ##
     57 OPT_MODULAR=	%MODULAR%
     58 
     59 ##
     60 ## (4) local objects, compile rules, and dependencies
     61 ##
     62 MD_OBJS=	locore.o
     63 MD_CFILES=
     64 MD_SFILES=	${RISCV}/riscv/locore.S
     65 
     66 locore.o: ${RISCV}/riscv/locore.S assym.h
     67 	${NORMAL_S}
     68 
     69 ##
     70 ## (5) link settings
     71 ##
     72 .if ${MACHINE_ARCH} == "riscv64" && ${LP64:Uyes} == "yes"
     73 TEXTADDR?=              0xFFFFFFFF80002000
     74 .else   
     75 TEXTADDR?=		0xC0001000
     76 .endif
     77 KERNLDSCRIPT?=		${RISCV}/conf/kern.ldscript
     78 LINKFORMAT+=		-T ${KERNLDSCRIPT}
     79 EXTRA_LINKFLAGS=	${LDOPTS} --relax
     80 LINKFLAGS_NORMAL=	-X
     81 STRIPFLAGS=		-g -X
     82 
     83 ##
     84 ## (6) port specific target dependencies
     85 ##
     86 
     87 # depend on CPU configuration
     88 machdep.o mainbus.o trap.o: Makefile
     89 
     90 # depend on System V IPC/shmem options
     91 riscv_machdep.o pmap.o: Makefile
     92 
     93 # various assembly files that depend on assym.h
     94 locore.o: assym.h
     95 
     96 ##
     97 ## (7) misc settings
     98 ##
     99 RAMDISKDIR!=    cd ${NETBSDSRCDIR}/distrib/riscv/ramdisk && ${PRINTOBJDIR}
    100 
    101 .if defined(NEED_MDSETIMAGE) && ${NEED_MDSETIMAGE} != "no" \
    102     && defined(RAMDISKDIR) && exists(${RAMDISKDIR}/ramdisk.fs)
    103 SYSTEM_DEP+=    ${RAMDISKDIR}/ramdisk.fs 
    104 SYSTEM_LD_TAIL_EXTRA+=; \
    105 	echo ${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs; \
    106 	${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs
    107 .if !empty(DEBUG:M-g*)
    108 SYSTEM_LD_TAIL_EXTRA+=; \
    109 	echo ${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs; \
    110 	${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs
    111 .endif
    112 .endif
    113 
    114 ##
    115 ## (8) config(8) generated machinery
    116 ##
    117 %INCLUDES
    118 
    119 %OBJS
    120 
    121 %CFILES
    122 
    123 %SFILES
    124 
    125 %LOAD
    126 
    127 %RULES
    128 
    129 ##
    130 ## (9) port independent kernel machinery
    131 ##
    132 .include "$S/conf/Makefile.kern.inc"
    133 
    134 ##
    135 ## (10) Appending make options.
    136 ##
    137 %MAKEOPTIONSAPPEND
    138