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Makefile.riscv revision 1.2.22.3 
      1 #	$NetBSD: Makefile.riscv,v 1.2.22.3 2020/04/13 08:04:05 martin 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 .if !defined(LP64) || ${LP64} == "no"
     43 CFLAGS+=	-m32
     44 AFLAGS+=	-m32
     45 LDFLAGS+=	-m elf32lriscv
     46 LINKFORMAT+=	-m elf32lriscv
     47 SYSTEM_LD_TAIL_EXTRA+= \
     48 		;echo ${OBJCOPY} -O elf32-littleriscv $@ $@.elf32; \
     49 		${OBJCOPY} -O elf32-littleriscv $@ $@.elf32
     50 .endif # LP64=no
     51 AFLAGS+=	-x assembler-with-cpp ${AOPTS}
     52 
     53 ##
     54 ## (3) libkern and compat
     55 ##
     56 OPT_MODULAR=	%MODULAR%
     57 
     58 ##
     59 ## (4) local objects, compile rules, and dependencies
     60 ##
     61 MD_OBJS=	locore.o
     62 MD_CFILES=
     63 MD_SFILES=	${RISCV}/riscv/locore.S
     64 
     65 locore.o: ${RISCV}/riscv/locore.S assym.h
     66 	${NORMAL_S}
     67 
     68 ##
     69 ## (5) link settings
     70 ##
     71 .if ${MACHINE_ARCH} == "riscv64" && ${LP64:Uyes} == "yes"
     72 TEXTADDR?=		0xFFFFFFC000000000
     73 .else
     74 TEXTADDR?=		0xC0001000
     75 .endif
     76 KERNLDSCRIPT?=		${RISCV}/conf/kern.ldscript
     77 LINKFORMAT+=		-T ${KERNLDSCRIPT}
     78 EXTRA_LINKFLAGS=	${LDOPTS} --relax
     79 LINKFLAGS_NORMAL=	-X
     80 STRIPFLAGS=		-g -X
     81 
     82 ##
     83 ## (6) port specific target dependencies
     84 ##
     85 
     86 # depend on CPU configuration
     87 machdep.o mainbus.o trap.o: Makefile
     88 
     89 # depend on System V IPC/shmem options
     90 riscv_machdep.o pmap.o: Makefile
     91 
     92 # various assembly files that depend on assym.h
     93 locore.o: assym.h
     94 
     95 ##
     96 ## (7) misc settings
     97 ##
     98 RAMDISKDIR!=    cd ${NETBSDSRCDIR}/distrib/riscv/ramdisk && ${PRINTOBJDIR}
     99 
    100 .if defined(NEED_MDSETIMAGE) && ${NEED_MDSETIMAGE} != "no" \
    101     && defined(RAMDISKDIR) && exists(${RAMDISKDIR}/ramdisk.fs)
    102 SYSTEM_DEP+=    ${RAMDISKDIR}/ramdisk.fs
    103 SYSTEM_LD_TAIL_EXTRA+=; \
    104 	echo ${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs; \
    105 	${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs
    106 .if !empty(DEBUG:M-g*)
    107 SYSTEM_LD_TAIL_EXTRA+=; \
    108 	echo ${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs; \
    109 	${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs
    110 .endif
    111 .endif
    112 
    113 ##
    114 ## (8) config(8) generated machinery
    115 ##
    116 %INCLUDES
    117 
    118 %OBJS
    119 
    120 %CFILES
    121 
    122 %SFILES
    123 
    124 %LOAD
    125 
    126 %RULES
    127 
    128 ##
    129 ## (9) port independent kernel machinery
    130 ##
    131 .include "$S/conf/Makefile.kern.inc"
    132 
    133 ##
    134 ## (10) Appending make options.
    135 ##
    136 %MAKEOPTIONSAPPEND
    137