Home | History | Annotate | Line # | Download | only in conf
Makefile.aarch64 revision 1.18 
      1 #	$NetBSD: Makefile.aarch64,v 1.18 2020/04/12 07:49:58 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 ${ARMV83_PAC:U0} > 0 && ${HAVE_LLVM:Uno} == "yes"
     43 CFLAGS+=	-mbranch-protection=pac-ret
     44 .endif
     45 
     46 .if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0
     47 KASANFLAGS=	-fsanitize=kernel-address \
     48 		--param asan-globals=1 --param asan-stack=1 \
     49 		-fsanitize-address-use-after-scope \
     50 		-fasan-shadow-offset=0xDFFF600000000000
     51 .for f in subr_asan.c
     52 KASANFLAGS.${f}=	# empty
     53 .endfor
     54 CFLAGS+=	${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}}
     55 .endif
     56 
     57 ##
     58 ## (3) libkern and compat
     59 ##
     60 OPT_MODULAR=	%MODULAR%
     61 
     62 ##
     63 ## (4) local objects, compile rules, and dependencies
     64 ##
     65 MD_OBJS+=	${SYSTEM_FIRST_OBJ} locore.o
     66 MD_CFILES+=
     67 MD_SFILES+=	${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S
     68 
     69 .if defined(SYSTEM_FIRST_OBJ)
     70 ${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h
     71 	${NORMAL_S}
     72 .endif
     73 
     74 locore.o: ${ARM}/aarch64/locore.S assym.h
     75 	${NORMAL_S}
     76 
     77 ##
     78 ## (5) link settings
     79 ##
     80 KERNLDSCRIPT?=	${ARM}/conf/kern.ldscript
     81 LOADADDRESS?=	0xffffc00000000000
     82 LINKFLAGS_NORMAL=	-X
     83 
     84 # Strip AArch64 mapping symbols from the kernel image, as they interfere
     85 # with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified.
     86 .if !defined(DEBUG) || empty(DEBUG:M-g*)
     87 SYSTEM_LD_TAIL?=	${OBJCOPY} -w --strip-symbol='[$$][dx]'	\
     88 				   --strip-symbol='[$$][dx]\.*' $@ ;\
     89 			${SIZE} $@; chmod 755 $@
     90 .else
     91 STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d'
     92 .endif
     93 
     94 ##
     95 ## (6) port specific target dependencies
     96 ##
     97 
     98 # depend on DIAGNOSTIC etc.
     99 cpuswitch.o fault.o machdep.o: Makefile
    100 
    101 # various assembly files that depend on assym.h
    102 atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h
    103 exception.o sigcode.o: assym.h
    104 spl.o vectors.o: assym.h
    105 
    106 ##
    107 ## (7) misc settings
    108 ##
    109 
    110 # define .MAIN _before_ the make() check, so that implicit target
    111 # would be defined
    112 .MAIN: all
    113 
    114 .if !make(obj) && !make(clean) && !make(cleandir)
    115 .BEGIN::
    116 	-@rm -f arm && \
    117 		ln -s $S/arch/arm/include arm
    118 .endif
    119 
    120 ##
    121 ## (8) config(8) generated machinery
    122 ##
    123 %INCLUDES
    124 
    125 %OBJS
    126 
    127 %CFILES
    128 
    129 %SFILES
    130 
    131 %LOAD
    132 
    133 %RULES
    134 
    135 ##
    136 ## (9) after the config file is inserted
    137 ##
    138 
    139 ##
    140 ## (10) port independent kernel machinery
    141 ##
    142 
    143 .include "$S/conf/Makefile.kern.inc"
    144 
    145 ##
    146 ## (11) Appending make options.
    147 ##
    148 %MAKEOPTIONSAPPEND
    149