xref: /freebsd/sys/conf/Makefile.arm64 (revision 3494f7c0) 
1# Makefile.arm64 -- with config changes.
2# Copyright 1990 W. Jolitz
3#	from FreeBSD: src/sys/conf/Makefile.i386,v 1.255 2002/02/20 23:35:49
4#
5# Makefile for FreeBSD
6#
7# This makefile is constructed from a machine description:
8#	config machineid
9# Most changes should be made in the machine description
10#	/sys/arm64/conf/``machineid''
11# after which you should do
12#	 config machineid
13# Generic makefile changes should be made in
14#	/sys/conf/Makefile.arm64
15# after which config should be rerun for all machines.
16#
17
18# Which version of config(8) is required.
19%VERSREQ=	600012
20
21.if !defined(S)
22S=	../../..
23.endif
24.include "$S/conf/kern.pre.mk"
25
26INCLUDES+= -I$S/contrib/libfdt -I$S/contrib/device-tree/include
27
28LINUX_DTS_VERSION!=	awk '/freebsd,dts-version/ { sub(/;$$/,"", $$NF); print $$NF }' $S/dts/freebsd-compatible.dts
29CFLAGS += -DLINUX_DTS_VERSION=\"${LINUX_DTS_VERSION}\"
30
31PERTHREAD_SSP_ENABLED!=	grep PERTHREAD_SSP opt_global.h || true ; echo
32.if !empty(PERTHREAD_SSP_ENABLED)
33. if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 130000
34ARM64_SSP_CFLAGS = -mstack-protector-guard=sysreg
35ARM64_SSP_CFLAGS += -mstack-protector-guard-reg=sp_el0
36ARM64_SSP_CFLAGS += -mstack-protector-guard-offset=0
37. else
38ARM64_SSP_CFLAGS += -DPERTHREAD_SSP_WARNING
39.  warning "Compiler is too old to support PERTHREAD_SSP"
40. endif
41CFLAGS += ${ARM64_SSP_CFLAGS}
42ARCH_FLAGS += ${ARM64_SSP_CFLAGS}
43.endif
44
45# Use a custom SYSTEM_LD command to generate the elf kernel, so we can
46# set the text segment start address, and also strip the "arm mapping
47# symbols" which have names like $a.0 and $d.2; see the document
48# "ELF for the ARM architecture" for more info on the mapping symbols.
49SYSTEM_LD= \
50	${SYSTEM_LD_BASECMD} \
51	    --defsym='text_start=kernbase + SIZEOF_HEADERS' \
52	    -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \
53	$(OBJCOPY) \
54	    --wildcard \
55	    --strip-symbol='$$[adtx]*' \
56	    ${.TARGET}
57
58.if !empty(DDB_ENABLED) || !empty(DTRACE_ENABLED) || !empty(HWPMC_ENABLED)
59CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
60.endif
61
62%BEFORE_DEPEND
63
64%OBJS
65
66%FILES.c
67
68%FILES.s
69
70%FILES.m
71
72%CLEAN
73
74%RULES
75
76.include "$S/conf/kern.post.mk"
77
78# Create a kernel.bin file...
79# Copy the kernel to u-boot's booti image format (the elf headers are
80# stripped and a custom binary head blob is prepended), saving the
81# output in a temp file.  We also strip arm "marker" symbols which are
82# used only by elf toolchains.  Read the symbols from kernel.full and pass
83# them to arm_kernel_boothdr.awk, which generates a binary header blob
84# that goes on the front of the stripped kernel.  Cat the header blob
85# and the temp file together to make the kernel.bin file.
86${KERNEL_KO}.bin: ${FULLKERNEL}
87	@${OBJCOPY} --wildcard --strip-symbol='$$[adtx]*' \
88	    --output-target=binary ${FULLKERNEL} ${.TARGET}.temp
89	@{ ${NM} ${FULLKERNEL} | \
90	    ${AWK} -f $S/tools/arm_kernel_boothdr.awk -v hdrtype=v8booti && \
91	    cat ${.TARGET}.temp; \
92	 } > ${.TARGET}
93	@rm ${.TARGET}.temp
94	@echo "created ${.TARGET} from ${.ALLSRC}"
95