Makefile.aarch64 revision 1.19
1 # $NetBSD: Makefile.aarch64,v 1.19 2020/04/13 05:40:25 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 ${HAVE_LLVM:Uno} == "yes" 43 .if ${ARMV83_PAC:U0} > 0 && ${ARMV85_BTI:U0} > 0 44 CFLAGS+= -mbranch-protection=pac-ret+bti 45 .else 46 .if ${ARMV83_PAC:U0} > 0 47 CFLAGS+= -mbranch-protection=pac-ret 48 .endif 49 .if ${ARMV85_BTI:U0} > 0 50 CFLAGS+= -mbranch-protection=bti 51 .endif 52 .endif 53 .endif 54 55 .if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0 56 KASANFLAGS= -fsanitize=kernel-address \ 57 --param asan-globals=1 --param asan-stack=1 \ 58 -fsanitize-address-use-after-scope \ 59 -fasan-shadow-offset=0xDFFF600000000000 60 .for f in subr_asan.c 61 KASANFLAGS.${f}= # empty 62 .endfor 63 CFLAGS+= ${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}} 64 .endif 65 66 ## 67 ## (3) libkern and compat 68 ## 69 OPT_MODULAR= %MODULAR% 70 71 ## 72 ## (4) local objects, compile rules, and dependencies 73 ## 74 MD_OBJS+= ${SYSTEM_FIRST_OBJ} locore.o 75 MD_CFILES+= 76 MD_SFILES+= ${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S 77 78 .if defined(SYSTEM_FIRST_OBJ) 79 ${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h 80 ${NORMAL_S} 81 .endif 82 83 locore.o: ${ARM}/aarch64/locore.S assym.h 84 ${NORMAL_S} 85 86 ## 87 ## (5) link settings 88 ## 89 KERNLDSCRIPT?= ${ARM}/conf/kern.ldscript 90 LOADADDRESS?= 0xffffc00000000000 91 LINKFLAGS_NORMAL= -X 92 93 # Strip AArch64 mapping symbols from the kernel image, as they interfere 94 # with ddb. Do it differently if 'makeoptions DEBUG="-g"' was specified. 95 .if !defined(DEBUG) || empty(DEBUG:M-g*) 96 SYSTEM_LD_TAIL?= ${OBJCOPY} -w --strip-symbol='[$$][dx]' \ 97 --strip-symbol='[$$][dx]\.*' $@ ;\ 98 ${SIZE} $@; chmod 755 $@ 99 .else 100 STRIPFLAGS=-g --strip-symbol='$$x' --strip-symbol='$$d' 101 .endif 102 103 ## 104 ## (6) port specific target dependencies 105 ## 106 107 # depend on DIAGNOSTIC etc. 108 cpuswitch.o fault.o machdep.o: Makefile 109 110 # various assembly files that depend on assym.h 111 atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h 112 exception.o sigcode.o: assym.h 113 spl.o vectors.o: assym.h 114 115 ## 116 ## (7) misc settings 117 ## 118 119 # define .MAIN _before_ the make() check, so that implicit target 120 # would be defined 121 .MAIN: all 122 123 .if !make(obj) && !make(clean) && !make(cleandir) 124 .BEGIN:: 125 -@rm -f arm && \ 126 ln -s $S/arch/arm/include arm 127 .endif 128 129 ## 130 ## (8) config(8) generated machinery 131 ## 132 %INCLUDES 133 134 %OBJS 135 136 %CFILES 137 138 %SFILES 139 140 %LOAD 141 142 %RULES 143 144 ## 145 ## (9) after the config file is inserted 146 ## 147 148 ## 149 ## (10) port independent kernel machinery 150 ## 151 152 .include "$S/conf/Makefile.kern.inc" 153 154 ## 155 ## (11) Appending make options. 156 ## 157 %MAKEOPTIONSAPPEND 158
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