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      1 # $NetBSD: Makefile.bootprogs,v 1.6 2022/05/28 22:16:43 andvar Exp $
      2 
      3 NOSSP=yes
      4 NOPIE=yes
      5 
      6 .include <bsd.own.mk>
      7 .include <bsd.klinks.mk>
      8 
      9 S=	${.CURDIR}/../../../../..
     10 COMMON=	${.CURDIR}/../common
     11 
     12 .PATH:	${COMMON}
     13 
     14 .if ${MACHINE_ARCH:M*64*}
     15 .	if ${MACHINE_ARCH:M*eb}
     16 LDABI=	-melf32btsmipn32
     17 .	else
     18 LDABI=	-melf32ltsmipn32
     19 .	endif
     20 CPUFLAGS+=	-mabi=n32
     21 .endif
     22 
     23 STRIPFLAG=
     24 BINMODE= 444
     25 
     26 # XXX SHOULD NOT NEED TO DEFINE THESE!
     27 LIBCRT0=
     28 LIBCRTI=
     29 LIBC=
     30 LIBCRTBEGIN=
     31 LIBCRTEND=
     32 
     33 STRIP?=	strip
     34 
     35 CHECKSIZE_CMD=	SIZE=${SIZE} ${HOST_SH} ${COMMON}/checksize.sh
     36 
     37 AFLAGS+=	-DASSEMBLER -D_LOCORE -mno-abicalls -mips64 -msoft-float
     38 # -I${.CURDIR}/../.. done by Makefile.inc
     39 CPPFLAGS+=	-nostdinc -I${.OBJDIR} -D_STANDALONE -I${S}
     40 CFLAGS=		-Os -g -ffreestanding -mno-abicalls -msoft-float -G 0
     41 CFLAGS+=	-mips64
     42 CFLAGS+=	-Werror ${CWARNFLAGS}
     43 
     44 NETBSD_VERS!=${HOST_SH} ${S}/conf/osrelease.sh
     45 CPPFLAGS+= -DNETBSD_VERS='"${NETBSD_VERS}"'
     46 
     47 CWARNFLAGS+=	-Wno-main 
     48 CWARNFLAGS+=	-Wall -Wmissing-prototypes -Wstrict-prototypes -Wpointer-arith
     49 CWARNFLAGS+=	-Wno-pointer-sign
     50 
     51 VERSIONFLAGS+=-n
     52 .include "${S}/conf/newvers_stand.mk"
     53 
     54 # 
     55 # Refer to CFE documentation for a description of these regions.
     56 # 
     57 
     58 REGION1_START=		0x20000000		# "Region 1 start"
     59 REGION1_SIZE!=		expr 256 \* 1024	# 256k
     60 
     61 LDSCRIPT=		${COMMON}/boot.ldscript
     62 
     63 # our memory lauout:
     64 
     65 #	'unified' boot loaders (e.g. netboot) can consume all of region
     66 #	1 for their text+data, or text+data+bss.
     67 
     68 UNIFIED_LOAD_ADDRESS=	${REGION1_START}
     69 UNIFIED_MAX_LOAD!=	expr ${REGION1_SIZE}
     70 UNIFIED_MAX_TOTAL!=	expr ${REGION1_SIZE}
     71 
     72 #UNIFIED_HEAP_START=	right after secondary bss
     73 UNIFIED_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     74 
     75 #	two-stage boot loaders must share region 1.  The first stage
     76 #	loads into the lowest portion, and uses the highest portion
     77 #	for its heap.  The second stage loads in between the primary image
     78 #	and the heap, and can reuse the memory after it (i.e. the primary's
     79 #	heap) for its own heap.
     80 
     81 PRIMARY_LOAD_ADDRESS=	${REGION1_START}
     82 #PRIMARY_MAX_LOAD=	booter dependent, no more than ${PRIMARY_MAX_TOTAL}
     83 PRIMARY_MAX_TOTAL!=	expr 16 \* 1024
     84 
     85 # XXX SECONDARY_LOAD_ADDRESS should be
     86 # XXX (${PRIMARY_LOAD_ADDRESS} + ${PRIMARY_MAX_TOTAL}) bt there's no easy
     87 # XXX way to do that calculation and 'ld' wants a single number.
     88 SECONDARY_LOAD_ADDRESS=	0x20004000	# XXX
     89 SECONDARY_MAX_LOAD!=	expr 112 \* 1024
     90 SECONDARY_MAX_TOTAL!=	expr ${REGION1_SIZE} - ${PRIMARY_MAX_TOTAL}
     91 
     92 PRIMARY_HEAP_START=	(${SECONDARY_LOAD_ADDRESS} + ${SECONDARY_MAX_LOAD})
     93 PRIMARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     94 
     95 #SECONDARY_HEAP_START=	right after secondary bss
     96 SECONDARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     97 
     98 #	standalone programs are like kernels.  They load at
     99 #	0xfffffc0000300000 and can use the rest of memory.
    100 
    101 STANDPROG_LOAD_ADDRESS=	0xfffffc0000300000
    102 
    103 
    104 FILE_FORMAT_CPPFLAGS=	-DBOOT_ELF
    105 
    106 UNIFIED_CPPFLAGS=	-DUNIFIED_BOOTBLOCK \
    107 			-DHEAP_LIMIT="${UNIFIED_HEAP_LIMIT}" \
    108 			${FILE_FORMAT_CPPFLAGS}
    109 
    110 PRIMARY_CPPFLAGS=	-DPRIMARY_BOOTBLOCK \
    111 			-DSECONDARY_LOAD_ADDRESS="${SECONDARY_LOAD_ADDRESS}" \
    112 			-DSECONDARY_MAX_LOAD="${SECONDARY_MAX_LOAD}" \
    113 			-DHEAP_LIMIT="${PRIMARY_HEAP_LIMIT}" \
    114 			-DHEAP_START="${PRIMARY_HEAP_START}"
    115 
    116 SECONDARY_CPPFLAGS=	-DSECONDARY_BOOTBLOCK \
    117 			-DHEAP_LIMIT="${SECONDARY_HEAP_LIMIT}" \
    118 			${FILE_FORMAT_CPPFLAGS}
    119 
    120 STANDPROG_CPPFLAGS=	-DSTANDALONE_PROGRAM
    121 
    122 .include <bsd.prog.mk>
    123 
    124 ### find out what to use for libkern
    125 KERN_AS=	library
    126 .include "${S}/lib/libkern/Makefile.inc"
    127 LIBKERN=	${KERNLIB}
    128 
    129 ### find out what to use for libz
    130 Z_AS=		library
    131 .include "${S}/lib/libz/Makefile.inc"
    132 LIBZ=		${ZLIB}
    133 
    134 ### find out what to use for libsa
    135 SA_AS=		library
    136 SAMISCMAKEFLAGS+="SA_USE_LOADFILE=yes"
    137 .include "${S}/lib/libsa/Makefile.inc"
    138 LIBSA=		${SALIB}
    139 
    140 /usr/lib/crt0.o:
    141 	true
    142 
    143 /usr/lib/crtbegin.o:
    144 	true
    145 
    146 /usr/lib/crtend.o:
    147 	true
    148 
    149 cleandir: .WAIT cleandirlocal
    150 cleandirlocal:
    151 	-rm -rf lib
    152