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Makefile.aarch64 revision 1.14 
      1 #	$NetBSD: Makefile.aarch64,v 1.14 2018/11/08 08:28:07 maxv 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/<arch>/conf/``machineid''
      9 # after which you should do
     10 #	config machineid
     11 # Machine generic makefile changes should be made in
     12 #	/sys/arch/arm/conf/Makefile.arm
     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 THISARM=	$S/arch/${MACHINE}
     28 ARM=		$S/arch/aarch64
     29 GENASSYM_CONF=	${ARM}/aarch64/genassym.cf
     30 .-include "$S/arch/${MACHINE}/conf/Makefile.${MACHINE}.inc"
     31 
     32 ##
     33 ## (2) compile settings
     34 ##
     35 # CPPFLAGS set by platform-specific Makefile fragment.
     36 CFLAGS+=	-march=armv8-a+nofp+nosimd
     37 #CFLAGS+=	-fomit-frame-pointer
     38 CFLAGS+=	-fno-omit-frame-pointer
     39 CFLAGS+=	-mno-omit-leaf-frame-pointer
     40 #CFLAGS+=	-mno-unaligned-access
     41 
     42 .if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0
     43 KASANFLAGS=	-fsanitize=kernel-address \
     44 		--param asan-globals=1 --param asan-stack=1 \
     45 		-fasan-shadow-offset=0xDFFF208000000000
     46 .for f in subr_asan.c
     47 KASANFLAGS.${f}=	# empty
     48 .endfor
     49 CFLAGS+=	${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}}
     50 .endif
     51 
     52 ##
     53 ## (3) libkern and compat
     54 ##
     55 OPT_MODULAR=	%MODULAR%
     56 
     57 ##
     58 ## (4) local objects, compile rules, and dependencies
     59 ##
     60 MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
     61 MD_CFILES+=
     62 MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
     63 
     64 .if defined(SYSTEM_FIRST_OBJ)
     65 ${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
     66 	${NORMAL_S}
     67 .endif
     68 
     69 locore.o: ${ARM}/aarch64/locore.S assym.h
     70 	${NORMAL_S}
     71 
     72 ##
     73 ## (5) link settings
     74 ##
     75 KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
     76 LOADADDRESS?=	0xffffffc000000040
     77 LINKFLAGS_NORMAL=	-X
     78 
     79 # Strip AArch64 mapping symbols from the kernel image, as they interfere
     80 # with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
     81 .if !defined(DEBUG) || empty(DEBUG:M-g*)
     82 SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
     83 				   --strip-symbol='[$$][dx]\.*' $@ ;\
     84 			${SIZE} $@; chmod 755 $@
     85 .else
     86 STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
     87 .endif
     88 
     89 ##
     90 ## (6) port specific target dependencies
     91 ##
     92 
     93 # depend on DIAGNOSTIC etc.
     94 cpuswitch.o fault.o machdep.o: Makefile
     95 
     96 # various assembly files that depend on assym.h
     97 atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
     98 exception.o sigcode.o: assym.h
     99 spl.o vectors.o: assym.h
    100 
    101 ##
    102 ## (7) misc settings
    103 ##
    104 
    105 # define .MAIN _before_ the make() check, so that implicit target
    106 # would be defined
    107 .MAIN: all
    108 
    109 .if !make(obj) && !make(clean) && !make(cleandir)
    110 .BEGIN::
    111 	-@rm -f arm && \
    112 		ln -s $S/arch/arm/include arm
    113 .endif
    114 
    115 ##
    116 ## (8) config(8) generated machinery
    117 ##
    118 %INCLUDES
    119 
    120 %OBJS
    121 
    122 %CFILES
    123 
    124 %SFILES
    125 
    126 %LOAD
    127 
    128 %RULES
    129 
    130 ##
    131 ## (9) after the config file is inserted
    132 ##
    133 
    134 ##
    135 ## (10) port independent kernel machinery
    136 ##
    137 
    138 .include "$S/conf/Makefile.kern.inc"
    139 
    140 ##
    141 ## (11) Appending make options.
    142 ##
    143 %MAKEOPTIONSAPPEND
    144