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      1 # $NetBSD: Makefile.bootprogs,v 1.15 2022/05/28 22:16:43 andvar Exp $
      2 
      3 .include <bsd.own.mk>
      4 .include <bsd.klinks.mk>
      5 
      6 S=	${.CURDIR}/../../../..
      7 
      8 .PATH:	${.CURDIR}/../common
      9 
     10 STRIPFLAG=
     11 BINMODE= 444
     12 
     13 # XXX SHOULD NOT NEED TO DEFINE THESE!
     14 LIBCRT0=
     15 LIBCRTI=
     16 LIBC=
     17 LIBCRTBEGIN=
     18 LIBCRTEND=
     19 
     20 STRIP?=	strip
     21 
     22 CHECKSIZE_CMD=	SIZE=${SIZE} ${HOST_SH} ${.CURDIR}/../common/checksize.sh
     23 
     24 AFLAGS+=	-DASSEMBLER -D_LOCORE -mno-abicalls -mips64
     25 # -I${.CURDIR}/../.. done by Makefile.inc
     26 CPPFLAGS+=	-nostdinc -I${.OBJDIR} -D_STANDALONE -I${S}
     27 CFLAGS=		-Os -g -ffreestanding -mno-abicalls -msoft-float -G 0
     28 CFLAGS+=	-mips64
     29 CFLAGS+=	-Werror ${CWARNFLAGS}
     30 
     31 NETBSD_VERS!=${HOST_SH} ${.CURDIR}/../../../../conf/osrelease.sh
     32 CPPFLAGS+= -DNETBSD_VERS='"${NETBSD_VERS}"'
     33 
     34 CWARNFLAGS+=	-Wno-main 
     35 CWARNFLAGS+=	-Wall -Wmissing-prototypes -Wstrict-prototypes -Wpointer-arith
     36 CWARNFLAGS+=	-Wno-pointer-sign
     37 
     38 VERSIONFLAGS+=-n
     39 .include "${S}/conf/newvers_stand.mk"
     40 
     41 # 
     42 # Refer to CFE documentation for a description of these regions.
     43 # 
     44 
     45 REGION1_START=		0x20000000		# "Region 1 start"
     46 REGION1_SIZE!=		expr 256 \* 1024	# 256k
     47 
     48 LDSCRIPT=		${.CURDIR}/../common/boot.ldscript
     49 
     50 # our memory lauout:
     51 
     52 #	'unified' boot loaders (e.g. netboot) can consume all of region
     53 #	1 for their text+data, or text+data+bss.
     54 
     55 UNIFIED_LOAD_ADDRESS=	${REGION1_START}
     56 UNIFIED_MAX_LOAD!=	expr ${REGION1_SIZE}
     57 UNIFIED_MAX_TOTAL!=	expr ${REGION1_SIZE}
     58 
     59 #UNIFIED_HEAP_START=	right after secondary bss
     60 UNIFIED_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     61 
     62 #	two-stage boot loaders must share region 1.  The first stage
     63 #	loads into the lowest portion, and uses the highest portion
     64 #	for its heap.  The second stage loads in between the primary image
     65 #	and the heap, and can reuse the memory after it (i.e. the primary's
     66 #	heap) for its own heap.
     67 
     68 PRIMARY_LOAD_ADDRESS=	${REGION1_START}
     69 #PRIMARY_MAX_LOAD=	booter dependent, no more than ${PRIMARY_MAX_TOTAL}
     70 PRIMARY_MAX_TOTAL!=	expr 16 \* 1024
     71 
     72 # XXX SECONDARY_LOAD_ADDRESS should be
     73 # XXX (${PRIMARY_LOAD_ADDRESS} + ${PRIMARY_MAX_TOTAL}) bt there's no easy
     74 # XXX way to do that calculation and 'ld' wants a single number.
     75 SECONDARY_LOAD_ADDRESS=	0x20004000	# XXX
     76 SECONDARY_MAX_LOAD!=	expr 112 \* 1024
     77 SECONDARY_MAX_TOTAL!=	expr ${REGION1_SIZE} - ${PRIMARY_MAX_TOTAL}
     78 
     79 PRIMARY_HEAP_START=	(${SECONDARY_LOAD_ADDRESS} + ${SECONDARY_MAX_LOAD})
     80 PRIMARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     81 
     82 #SECONDARY_HEAP_START=	right after secondary bss
     83 SECONDARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     84 
     85 #	standalone programs are like kernels.  They load at
     86 #	0xfffffc0000300000 and can use the rest of memory.
     87 
     88 STANDPROG_LOAD_ADDRESS=	0xfffffc0000300000
     89 
     90 
     91 FILE_FORMAT_CPPFLAGS=	-DBOOT_ELF
     92 
     93 UNIFIED_CPPFLAGS=	-DUNIFIED_BOOTBLOCK \
     94 			-DHEAP_LIMIT="${UNIFIED_HEAP_LIMIT}" \
     95 			${FILE_FORMAT_CPPFLAGS}
     96 
     97 PRIMARY_CPPFLAGS=	-DPRIMARY_BOOTBLOCK \
     98 			-DSECONDARY_LOAD_ADDRESS="${SECONDARY_LOAD_ADDRESS}" \
     99 			-DSECONDARY_MAX_LOAD="${SECONDARY_MAX_LOAD}" \
    100 			-DHEAP_LIMIT="${PRIMARY_HEAP_LIMIT}" \
    101 			-DHEAP_START="${PRIMARY_HEAP_START}"
    102 
    103 SECONDARY_CPPFLAGS=	-DSECONDARY_BOOTBLOCK \
    104 			-DHEAP_LIMIT="${SECONDARY_HEAP_LIMIT}" \
    105 			${FILE_FORMAT_CPPFLAGS}
    106 
    107 STANDPROG_CPPFLAGS=	-DSTANDALONE_PROGRAM
    108 
    109 .include <bsd.prog.mk>
    110 
    111 ### find out what to use for libkern
    112 KERN_AS=	library
    113 .include "${S}/lib/libkern/Makefile.inc"
    114 LIBKERN=	${KERNLIB}
    115 
    116 ### find out what to use for libz
    117 Z_AS=		library
    118 .include "${S}/lib/libz/Makefile.inc"
    119 LIBZ=		${ZLIB}
    120 
    121 ### find out what to use for libsa
    122 SA_AS=		library
    123 SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes"
    124 .include "${S}/lib/libsa/Makefile.inc"
    125 LIBSA=		${SALIB}
    126 
    127 /usr/lib/crt0.o:
    128 	true
    129 
    130 /usr/lib/crtbegin.o:
    131 	true
    132 
    133 /usr/lib/crtend.o:
    134 	true
    135 
    136 cleandir: .WAIT cleandirlocal
    137 cleandirlocal:
    138 	-rm -rf lib
    139