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      1 # 	$NetBSD: Makefile.sparc64,v 1.85 2018/09/22 12:24:03 rin Exp $
      2 
      3 #=========================================================================
      4 #
      5 #			***** WARNING ******
      6 #
      7 # ANYONE WHO CHANGES THIS MAKEFILE AND DOES NOT TEST BOTH A 32-BIT
      8 # AND 64-BIT KERNEL WILL BE SHOT.
      9 #
     10 #=========================================================================
     11 
     12 
     13 # Makefile for NetBSD
     14 #
     15 # This makefile is constructed from a machine description:
     16 #	config machineid
     17 # Most changes should be made in the machine description
     18 #	/sys/arch/sparc64/conf/``machineid''
     19 # after which you should do
     20 #	config machineid
     21 # Machine generic makefile changes should be made in
     22 #	/sys/arch/sparc64/conf/Makefile.sparc64
     23 # after which config should be rerun for all machines of that type.
     24 #
     25 # To specify debugging, add the config line: makeoptions DEBUG="-g"
     26 # A better way is to specify -g only for a few files.
     27 #
     28 #	makeoptions DEBUGLIST="uvm* trap if_*"
     29 
     30 # Default to 32-bit.  Set the MACHINE_ARCH accordingly.
     31 #
     32 # You must also be using the correct toolchain or the kernel build
     33 # will fail.
     34 #
     35 LP64?=	no
     36 .if ${LP64} == "yes"
     37 MACHINE_ARCH=sparc64
     38 .else
     39 MACHINE_ARCH=sparc
     40 .endif
     41 
     42 USETOOLS?=	no
     43 NEED_OWN_INSTALL_TARGET?=no
     44 .include <bsd.own.mk>
     45 
     46 USE_SSP?=	yes
     47 
     48 ##
     49 ## (1) port identification
     50 ##
     51 SPARC64=	$S/arch/sparc64
     52 GENASSYM_CONF=	${SPARC64}/sparc64/genassym.cf
     53 
     54 ##
     55 ## (2) compile settings
     56 ##
     57 CPPFLAGS+=	-Dsparc64 -D__sparc64__
     58 .if ${LP64} == "yes"
     59 # 64-bit kernels
     60 CPPFLAGS+=	-D_LP64 -Wa,-Av9a
     61 CPPFLAGS+=	${${ACTIVE_CC} == "clang":? -Qunused-arguments :}
     62 AFLAGS+=	-Wa,-Av9a
     63 .if defined(PROF)
     64 # Profiling is only supported in the medium low memory model.
     65 CFLAGS+=	${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :}
     66 CFLAGS+=	${${ACTIVE_CC} == "clang":? -mcmodel=small :}
     67 .else
     68 # Since the kernel resides in the lower 32 bits, use medium low for now anyway.
     69 CFLAGS+=	${${ACTIVE_CC} == "gcc":? -mcmodel=medlow :}
     70 CFLAGS+=	${${ACTIVE_CC} == "clang":? -mcmodel=small :}
     71 .endif
     72 .else
     73 # 32-bit kernels
     74 CPPFLAGS+=	-m32 -Wa,-Av8plusa -mcpu=ultrasparc
     75 CPPFLAGS+=	${${ACTIVE_CC} == "clang":? -Qunused-arguments :}
     76 AFLAGS+=	-Wa,-Av8plusa
     77 AFLAGS+=	${${ACTIVE_CC} == "clang":? -Qunused-arguments :}
     78 .endif
     79 CFLAGS+=	${${ACTIVE_CC} == "gcc":? -mno-fpu :}
     80 AFLAGS+=	-x assembler-with-cpp
     81 
     82 ##
     83 ## (3) libkern and compat
     84 ##
     85 OPT_MODULAR=	%MODULAR%
     86 
     87 ##
     88 ## (4) local objects, compile rules, and dependencies
     89 ##
     90 MD_OBJS=	locore.o copy.o mp_subr.o
     91 MD_CFILES=
     92 MD_SFILES=	${SPARC64}/sparc64/locore.s ${SPARC64}/sparc64/copy.S \
     93 	 ${SPARC64}/sparc64/mp_subr.S
     94 
     95 locore.o: ${SPARC64}/sparc64/locore.s assym.h
     96 	${NORMAL_S}
     97 
     98 copy.o:	${SPARC64}/sparc64/copy.S assym.h
     99 	${NORMAL_S}
    100 
    101 mp_subr.o:	${SPARC64}/sparc64/mp_subr.S assym.h
    102 	${NORMAL_S}
    103 
    104 # Our libkern needs stuff from assym.h for memcpy and memset.
    105 dependkernlib:	assym.h
    106 
    107 ##
    108 ## (5) link settings
    109 ##
    110 TEXTADDR?=	01000000
    111 .if ${LP64} == "yes"
    112 KERNLDSCRIPT?= ${SPARC64}/conf/kern.ldscript
    113 .else
    114 KERNLDSCRIPT?= ${SPARC64}/conf/kern32.ldscript
    115 .endif
    116 
    117 ##
    118 ## (6) port specific target dependencies
    119 ##
    120 
    121 # depend on CPU configuration
    122 bwtwo.o cgsix.o cgthree.o cgtwo.o cons.o dma.o esp.o fb.o if_ie.o: Makefile
    123 ms.c obio.o zs.c autoconf.o clock.o cpu.o disksubr.o locore.o: Makefile
    124 machdep.o mem.o openprom.o pmap.o vm_machdep.o: Makefile
    125 
    126 cpu_in_cksum.o lock_stubs.o: assym.h
    127 
    128 ##
    129 ## (7) misc settings
    130 ##
    131 
    132 # define .MAIN _before_ the make() check, so that implicit target
    133 # would be defined
    134 .MAIN: all
    135 
    136 .if !make(obj) && !make(clean) && !make(cleandir)
    137 .BEGIN::
    138 	-@rm -f sparc && \
    139 		ln -s $S/arch/sparc/include sparc
    140 .endif
    141 
    142 ##
    143 ## (8) config(8) generated machinery
    144 ##
    145 %INCLUDES
    146 
    147 %OBJS
    148 
    149 %CFILES
    150 
    151 %SFILES
    152 
    153 %LOAD
    154 
    155 %RULES
    156 
    157 ##
    158 ## (9) port independent kernel machinery
    159 ##
    160 _SKIP_DTS=yes
    161 .include "$S/conf/Makefile.kern.inc"
    162 
    163 ##
    164 ## (10) Appending make options.
    165 ##
    166 %MAKEOPTIONSAPPEND
    167