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Makefile.riscv revision 1.7 
      1 #	$NetBSD: Makefile.riscv,v 1.7 2021/05/01 07:13:21 skrll 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 EXTRA_LINKFLAGS=	${LDOPTS} --relax
     78 LINKFLAGS_NORMAL=	-X
     79 STRIPFLAGS=		-g -X
     80 
     81 # Set the physical load address (aka LMA) to the address that OpenSBI's
     82 # fw_jump jumps to.  This allows us to load the kernel with the -kernel flag
     83 # in QEMU without having to embed it inside BBL or OpenSBI's fw_payload first.
     84 #
     85 KERNEL_PHYS?=		0x80200000
     86 EXTRA_LINKFLAGS+=	--defsym='KERNEL_PHYS=${KERNEL_PHYS}'
     87 
     88 ##
     89 ## (6) port specific target dependencies
     90 ##
     91 
     92 # depend on CPU configuration
     93 machdep.o mainbus.o trap.o: Makefile
     94 
     95 # depend on System V IPC/shmem options
     96 riscv_machdep.o pmap.o: Makefile
     97 
     98 # various assembly files that depend on assym.h
     99 locore.o: assym.h
    100 
    101 ##
    102 ## (7) misc settings
    103 ##
    104 RAMDISKDIR!=    cd ${NETBSDSRCDIR}/distrib/riscv/ramdisk && ${PRINTOBJDIR}
    105 
    106 .if defined(NEED_MDSETIMAGE) && ${NEED_MDSETIMAGE} != "no" \
    107     && defined(RAMDISKDIR) && exists(${RAMDISKDIR}/ramdisk.fs)
    108 SYSTEM_DEP+=    ${RAMDISKDIR}/ramdisk.fs
    109 SYSTEM_LD_TAIL_EXTRA+=; \
    110 	echo ${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs; \
    111 	${TOOL_MDSETIMAGE} -s $@ ${RAMDISKDIR}/ramdisk.fs
    112 .if !empty(DEBUG:M-g*)
    113 SYSTEM_LD_TAIL_EXTRA+=; \
    114 	echo ${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs; \
    115 	${TOOL_MDSETIMAGE} -s $@.gdb ${RAMDISKDIR}/ramdisk.fs
    116 .endif
    117 .endif
    118 
    119 ##
    120 ## (8) config(8) generated machinery
    121 ##
    122 %INCLUDES
    123 
    124 %OBJS
    125 
    126 %CFILES
    127 
    128 %SFILES
    129 
    130 %LOAD
    131 
    132 %RULES
    133 
    134 ##
    135 ## (9) port independent kernel machinery
    136 ##
    137 .include "$S/conf/Makefile.kern.inc"
    138 
    139 ##
    140 ## (10) Appending make options.
    141 ##
    142 %MAKEOPTIONSAPPEND
    143