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Makefile.bootprogs revision 1.38 
      1 # $NetBSD: Makefile.bootprogs,v 1.38 2026/06/01 20:34:18 andvar Exp $
      2 
      3 NOMAN=			# defined
      4 
      5 .include <bsd.own.mk>
      6 
      7 S=	${.CURDIR}/../../../..
      8 
      9 .PATH:	${.CURDIR}/../common
     10 
     11 BINMODE= 444
     12 
     13 STRIP?=	strip
     14 
     15 # XXX SHOULD NOT NEED TO DEFINE THESE!
     16 LIBCRT0=
     17 LIBCRTI=
     18 LIBC=
     19 LIBCRTBEGIN=
     20 LIBCRTEND=
     21 
     22 CHECKSIZE_CMD=	SIZE=${SIZE} ${HOST_SH} ${.CURDIR}/../common/checksize.sh
     23 
     24 realall: ${PROG}
     25 
     26 AFLAGS+=	-DASSEMBLER
     27 # -I${.CURDIR}/../.. done by Makefile.inc
     28 CPPFLAGS+=	-nostdinc -I${.OBJDIR} -D_STANDALONE -I${S}
     29 CFLAGS=		-ffreestanding -mno-fp-regs -g
     30 
     31 NETBSD_VERS!=${HOST_SH} ${.CURDIR}/../../../../conf/osrelease.sh
     32 CPPFLAGS+= -DNETBSD_VERS='"${NETBSD_VERS}"'
     33 
     34 CWARNFLAGS+=	-Wall -Wmissing-prototypes -Wstrict-prototypes -Wpointer-arith
     35 CFLAGS+=	-Werror ${CWARNFLAGS}
     36 
     37 .include "${S}/conf/newvers_stand.mk"
     38 
     39 
     40 # For descriptions of regions available to bootstrap programs, see
     41 # section 3.4.1.2 (pp. III 3-14 - III 3-18) of the second edition of
     42 # the Alpha AXP Architecture Reference Manual.
     43 
     44 REGION1_START=		0x20000000		# "Region 1 start"
     45 REGION1_SIZE!=		expr 256 \* 1024	# 256k
     46 
     47 # our memory layout:
     48 
     49 #	'unified' boot loaders (e.g. netboot) can consume all of region
     50 #	1 for their text+data, or text+data+bss.
     51 
     52 UNIFIED_LOAD_ADDRESS=	${REGION1_START}
     53 UNIFIED_MAX_LOAD!=	expr ${REGION1_SIZE}
     54 UNIFIED_MAX_TOTAL!=	expr ${REGION1_SIZE}
     55 
     56 #UNIFIED_HEAP_START=	right after secondary bss
     57 UNIFIED_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     58 
     59 #	two-stage boot loaders must share region 1.  The first stage
     60 #	loads into the lowest portion, and uses the highest portion
     61 #	for its heap.  The second stage loads in between the primary image
     62 #	and the heap, and can reuse the memory after it (i.e. the primary's
     63 #	heap) for its own heap.
     64 
     65 PRIMARY_LOAD_ADDRESS=	${REGION1_START}
     66 #PRIMARY_MAX_LOAD=	booter dependent, no more than ${PRIMARY_MAX_TOTAL}
     67 PRIMARY_MAX_TOTAL!=	expr 16 \* 1024
     68 
     69 # XXX SECONDARY_LOAD_ADDRESS should be
     70 # XXX (${PRIMARY_LOAD_ADDRESS} + ${PRIMARY_MAX_TOTAL}) bt there's no easy
     71 # XXX way to do that calculation and 'ld' wants a single number.
     72 SECONDARY_LOAD_ADDRESS=	0x20004000	# XXX
     73 SECONDARY_MAX_LOAD!=	expr 112 \* 1024
     74 SECONDARY_MAX_TOTAL!=	expr ${REGION1_SIZE} - ${PRIMARY_MAX_TOTAL}
     75 
     76 PRIMARY_HEAP_START=	(${SECONDARY_LOAD_ADDRESS} + ${SECONDARY_MAX_LOAD})
     77 PRIMARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     78 
     79 #SECONDARY_HEAP_START=	right after secondary bss
     80 SECONDARY_HEAP_LIMIT=	(${REGION1_START} + ${REGION1_SIZE})
     81 
     82 #	standalone programs are like kernels.  They load at
     83 #	0xfffffc0000800000 and can use the rest of memory.
     84 
     85 STANDPROG_LOAD_ADDRESS=	0xfffffc0000800000
     86 
     87 
     88 FILE_FORMAT_CPPFLAGS=	-DBOOT_ECOFF -DBOOT_ELF64
     89 
     90 UNIFIED_CPPFLAGS=	-DUNIFIED_BOOTBLOCK \
     91 			-DHEAP_LIMIT="${UNIFIED_HEAP_LIMIT}" \
     92 			${FILE_FORMAT_CPPFLAGS}
     93 
     94 PRIMARY_CPPFLAGS=	-DPRIMARY_BOOTBLOCK \
     95 			-DSECONDARY_LOAD_ADDRESS="${SECONDARY_LOAD_ADDRESS}" \
     96 			-DSECONDARY_MAX_LOAD="${SECONDARY_MAX_LOAD}" \
     97 			-DHEAP_LIMIT="${PRIMARY_HEAP_LIMIT}" \
     98 			-DHEAP_START="${PRIMARY_HEAP_START}"
     99 
    100 SECONDARY_CPPFLAGS=	-DSECONDARY_BOOTBLOCK \
    101 			-DHEAP_LIMIT="${SECONDARY_HEAP_LIMIT}" \
    102 			${FILE_FORMAT_CPPFLAGS}
    103 
    104 STANDPROG_CPPFLAGS=	-DSTANDALONE_PROGRAM
    105 
    106 .include <bsd.prog.mk>
    107 .include <bsd.klinks.mk>
    108 
    109 STRIPFLAG=	# override values in ${MAKECONF}
    110 COPTS+=-Os	# override -O supplied by user
    111 
    112 ### find out what to use for libkern
    113 KERN_AS=	library
    114 .include "${S}/lib/libkern/Makefile.inc"
    115 LIBKERN=	${KERNLIB}
    116 
    117 ### find out what to use for libz
    118 Z_AS=		library
    119 .include "${S}/lib/libz/Makefile.inc"
    120 LIBZ=		${ZLIB}
    121 
    122 ### find out what to use for libsa
    123 SA_AS=		library
    124 SAMISCMAKEFLAGS+=SA_USE_LOADFILE=yes
    125 .include "${S}/lib/libsa/Makefile.inc"
    126 LIBSA=		${SALIB}
    127