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Makefile.aarch64 revision 1.13 
      1 #	$NetBSD: Makefile.aarch64,v 1.13 2018/11/01 20:34:49 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 && ${HAVE_GCC:U0} > 0
     43 KASANFLAGS=	-fsanitize=kernel-address \
     44 		--param asan-globals=1
     45 .for f in subr_asan.c
     46 KASANFLAGS.${f}=	# empty
     47 .endfor
     48 CFLAGS+=	${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}}
     49 .endif
     50 
     51 ##
     52 ## (3) libkern and compat
     53 ##
     54 OPT_MODULAR=	%MODULAR%
     55 
     56 ##
     57 ## (4) local objects, compile rules, and dependencies
     58 ##
     59 MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
     60 MD_CFILES+=
     61 MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
     62 
     63 .if defined(SYSTEM_FIRST_OBJ)
     64 ${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
     65 	${NORMAL_S}
     66 .endif
     67 
     68 locore.o: ${ARM}/aarch64/locore.S assym.h
     69 	${NORMAL_S}
     70 
     71 ##
     72 ## (5) link settings
     73 ##
     74 KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
     75 LOADADDRESS?=	0xffffffc000000040
     76 LINKFLAGS_NORMAL=	-X
     77 
     78 # Strip AArch64 mapping symbols from the kernel image, as they interfere
     79 # with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
     80 .if !defined(DEBUG) || empty(DEBUG:M-g*)
     81 SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
     82 				   --strip-symbol='[$$][dx]\.*' $@ ;\
     83 			${SIZE} $@; chmod 755 $@
     84 .else
     85 STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
     86 .endif
     87 
     88 ##
     89 ## (6) port specific target dependencies
     90 ##
     91 
     92 # depend on DIAGNOSTIC etc.
     93 cpuswitch.o fault.o machdep.o: Makefile
     94 
     95 # various assembly files that depend on assym.h
     96 atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
     97 exception.o sigcode.o: assym.h
     98 spl.o vectors.o: assym.h
     99 
    100 ##
    101 ## (7) misc settings
    102 ##
    103 
    104 # define .MAIN _before_ the make() check, so that implicit target
    105 # would be defined
    106 .MAIN: all
    107 
    108 .if !make(obj) && !make(clean) && !make(cleandir)
    109 .BEGIN::
    110 	-@rm -f arm && \
    111 		ln -s $S/arch/arm/include arm
    112 .endif
    113 
    114 ##
    115 ## (8) config(8) generated machinery
    116 ##
    117 %INCLUDES
    118 
    119 %OBJS
    120 
    121 %CFILES
    122 
    123 %SFILES
    124 
    125 %LOAD
    126 
    127 %RULES
    128 
    129 ##
    130 ## (9) after the config file is inserted
    131 ##
    132 
    133 ##
    134 ## (10) port independent kernel machinery
    135 ##
    136 
    137 .include "$S/conf/Makefile.kern.inc"
    138 
    139 ##
    140 ## (11) Appending make options.
    141 ##
    142 %MAKEOPTIONSAPPEND
    143