1# $NetBSD: Makefile.amd64,v 1.86 2023/01/06 15:35:06 christos 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/amd64/conf/``machineid'' 9# after which you should do 10# config machineid 11# Machine generic makefile changes should be made in 12# /sys/arch/amd64/conf/Makefile.amd64 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 20MACHINE_ARCH=x86_64 21USETOOLS?= no 22NEED_OWN_INSTALL_TARGET?=no 23NOSANITIZER= 24.include <bsd.init.mk> 25 26USE_SSP?= yes 27 28## 29## (1) port identification 30## 31AMD64= $S/arch/amd64 32GENASSYM_CONF= ${AMD64}/amd64/genassym.cf 33 34## 35## (2) compile settings 36## 37DEFCOPTS= -O2 -fno-omit-frame-pointer 38CPPFLAGS+= -Damd64 -Dx86_64 39CFLAGS+= -mcmodel=kernel 40# -mno-sse implies -mno-sse2 (etc), explicitly disable avx to be extra sure 41CFLAGS+= -mno-red-zone -mno-mmx -mno-sse -mno-avx 42# make absolutely sure we don't get x87 registers used as well 43CFLAGS+= -msoft-float 44# For gcc we might need this, but other compilers barf 45# CFLAGS+= -mno-fp-ret-in-387 46 47.if ${SPECTRE_V2_GCC_MITIGATION:U0} > 0 48CFLAGS+= ${${ACTIVE_CC} == "gcc" :? -mindirect-branch=thunk :} 49CFLAGS+= ${${ACTIVE_CC} == "gcc" :? -mindirect-branch-register :} 50.endif 51 52.if ${KASAN:U0} > 0 53.if ${HAVE_GCC:U0} > 0 54KASANFLAGS= -fsanitize=kernel-address \ 55 --param asan-globals=1 --param asan-stack=1 \ 56 --param asan-instrument-allocas=1 \ 57 -fsanitize-address-use-after-scope \ 58 -fasan-shadow-offset=0xDFFF900000000000 59.elif ${HAVE_LLVM:Uno} == "yes" 60KASANFLAGS= -fsanitize=kernel-address \ 61 -mllvm -asan-globals=1 -mllvm -asan-stack=1 \ 62 -mllvm -asan-instrument-dynamic-allocas=1 \ 63 -mllvm -asan-use-after-scope=1 \ 64 -mllvm -asan-instrumentation-with-call-threshold=0 \ 65 -mllvm -asan-mapping-offset=0xDFFF900000000000 66.endif 67.for f in subr_asan.c subr_kcov.c 68KASANFLAGS.${f}= # empty 69.endfor 70CFLAGS+= ${KASANFLAGS.${.IMPSRC:T}:U${KASANFLAGS}} 71.endif 72 73.if ${KCSAN:U0} > 0 && ${HAVE_GCC:U0} > 0 74KCSANFLAGS= -fsanitize=thread 75.for f in subr_csan.c subr_kcov.c clock.c lapic.c 76KCSANFLAGS.${f}= # empty 77.endfor 78CFLAGS+= ${KCSANFLAGS.${.IMPSRC:T}:U${KCSANFLAGS}} 79.endif 80 81.if ${KMSAN:U0} > 0 && ${HAVE_LLVM:Uno} == "yes" 82KMSANFLAGS= -fsanitize=kernel-memory 83.for f in subr_msan.c 84KMSANFLAGS.${f}= # empty 85.endfor 86CFLAGS+= ${KMSANFLAGS.${.IMPSRC:T}:U${KMSANFLAGS}} 87.endif 88 89EXTRA_INCLUDES= -I$S/external/mit/xen-include-public/dist/ 90 91## 92## (3) libkern and compat 93## 94OPT_MODULAR= %MODULAR% 95 96## 97## (4) local objects, compile rules, and dependencies 98## 99 100## 101## (5) link settings 102## 103TEXTADDR?= 0xffffffff80200000 104.if defined(KASLR) 105EXTRA_LINKFLAGS= --split-by-file=0x100000 -r -d 106KERNLDSCRIPT?= ${AMD64}/conf/kern.ldscript.kaslr 107.else 108EXTRA_LINKFLAGS= -z max-page-size=0x200000 109KERNLDSCRIPT?= ${AMD64}/conf/kern.ldscript 110.endif 111LINKFLAGS_NORMAL= -X 112EXTRA_LINKFLAGS+= -z noseparate-code 113 114## 115## (6) port specific target dependencies 116## 117 118# depend on CPU configuration 119locore.o machdep.o: Makefile 120 121acpi_wakeup_low.o busfunc.o cpufunc.o cpu_in_cksum.o: assym.h 122linux_sigcode.o linux32_sigcode.o lock_stubs.o mptramp.o: assym.h 123netbsd32_sigcode.o: assym.h 124 125## 126## (7) misc settings 127## 128 129## 130## (8) config(8) generated machinery 131## 132%INCLUDES 133 134%OBJS 135 136%CFILES 137 138%SFILES 139 140%LOAD 141 142%RULES 143 144## 145## (9) port independent kernel machinery 146## 147.include "$S/conf/Makefile.kern.inc" 148 149## Include rules for ACPI wakecode 150.include "$S/arch/x86/acpi/Makefile.wakecode.inc" 151 152## 153## (10) Appending make options. 154## 155%MAKEOPTIONSAPPEND 156