# $NetBSD: Makefile.aarch64,v 1.23.12.1 2023/09/11 13:35:37 martin Exp $ # Makefile for NetBSD # # This makefile is constructed from a machine description: # config machineid # Most changes should be made in the machine description # /sys/arch//conf/``machineid'' # after which you should do # config machineid # Machine generic makefile changes should be made in # /sys/arch/arm/conf/Makefile.arm # after which config should be rerun for all machines of that type. # # To specify debugging, add the config line: makeoptions DEBUG="-g" # A better way is to specify -g only for a few files. # # makeoptions DEBUGLIST="uvm* trap if_*" USETOOLS?= no NEED_OWN_INSTALL_TARGET?=no .include ## ## (1) port identification ## THISARM= $S/arch/${MACHINE} ARM= $S/arch/aarch64 GENASSYM_CONF= ${ARM}/aarch64/genassym.cf .-include "$S/arch/${MACHINE}/conf/Makefile.${MACHINE}.inc" ## ## (2) compile settings ## # CPPFLAGS set by platform-specific Makefile fragment. CFLAGS+= -march=armv8-a+nofp+nosimd #CFLAGS+= -fomit-frame-pointer CFLAGS+= -fno-omit-frame-pointer CFLAGS+= -mno-omit-leaf-frame-pointer #CFLAGS+= -mno-unaligned-access .if defined(PROF) && ${HAVE_GCC:U0} > 0 # For accurate profiling, it is better to suppress the tail call. CFLAGS+= -fno-optimize-sibling-calls .endif .if ${ARMV83_PAC:U0} > 0 && ${ARMV85_BTI:U0} > 0 CFLAGS+= -mbranch-protection=pac-ret+bti .else .if ${ARMV83_PAC:U0} > 0 CFLAGS+= -mbranch-protection=pac-ret .endif .if ${ARMV85_BTI:U0} > 0 CFLAGS+= -mbranch-protection=bti .endif .endif .if ${KASAN:U0} > 0 && ${HAVE_GCC:U0} > 0 KASANFLAGS= -fsanitize=kernel-address \ --param asan-globals=1 --param asan-stack=1 \ --param asan-instrument-allocas=1 \ -fsanitize-address-use-after-scope \ -fasan-shadow-offset=0xDFFF600000000000 .for f in subr_asan.c KASANFLAGS.${f}= # empty .endfor CFLAGS+= ${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}} .endif ## ## (3) libkern and compat ## OPT_MODULAR= %MODULAR% ## ## (4) local objects, compile rules, and dependencies ## MD_OBJS+= ${SYSTEM_FIRST_OBJ} locore.o MD_CFILES+= MD_SFILES+= ${SYSTEM_FIRST_SFILE} ${ARM}/aarch64/locore.S .if defined(SYSTEM_FIRST_OBJ) ${SYSTEM_FIRST_OBJ}: ${SYSTEM_FIRST_SFILE} assym.h ${NORMAL_S} .endif locore.o: ${ARM}/aarch64/locore.S assym.h ${NORMAL_S} ## ## (5) link settings ## KERNLDSCRIPT?= ${ARM}/conf/kern.ldscript LOADADDRESS?= 0xffffc00000000000 LINKFLAGS_NORMAL= -X # Strip AArch64 mapping symbols from the kernel image, as they interfere # with ddb, but don't strip them in netbsd.gdb. See Makefile.kern.inc. ARCH_STRIP_SYMBOLS= --strip-symbol='[$$][dx]' \ --strip-symbol='[$$][dx]\.*' ## ## (6) port specific target dependencies ## # depend on DIAGNOSTIC etc. cpuswitch.o fault.o machdep.o: Makefile # various assembly files that depend on assym.h atomic.o bcopy_page.o bcopyinout.o copystr.o cpuswitch.o cpu_in_cksum.o: assym.h exception.o sigcode.o: assym.h spl.o vectors.o: assym.h ## ## (7) misc settings ## # define .MAIN _before_ the make() check, so that implicit target # would be defined .MAIN: all .if !make(obj) && !make(clean) && !make(cleandir) .BEGIN:: -@rm -f arm && \ ln -s $S/arch/arm/include arm .endif ## ## (8) config(8) generated machinery ## %INCLUDES %OBJS %CFILES %SFILES %LOAD %RULES ## ## (9) after the config file is inserted ## ## ## (10) port independent kernel machinery ## .include "$S/conf/Makefile.kern.inc" ## ## (11) Appending make options. ## %MAKEOPTIONSAPPEND