xref: /freebsd/sys/conf/Makefile.arm64 (revision c697fb7f)
1# Makefile.arm64 -- with config changes.
2# Copyright 1990 W. Jolitz
3#	from: @(#)Makefile.i386	7.1 5/10/91
4#	from FreeBSD: src/sys/conf/Makefile.i386,v 1.255 2002/02/20 23:35:49
5# $FreeBSD$
6#
7# Makefile for FreeBSD
8#
9# This makefile is constructed from a machine description:
10#	config machineid
11# Most changes should be made in the machine description
12#	/sys/arm64/conf/``machineid''
13# after which you should do
14#	 config machineid
15# Generic makefile changes should be made in
16#	/sys/conf/Makefile.arm64
17# after which config should be rerun for all machines.
18#
19
20# Which version of config(8) is required.
21%VERSREQ=	600012
22
23.if !defined(S)
24S=	../../..
25.endif
26.include "$S/conf/kern.pre.mk"
27
28INCLUDES+= -I$S/contrib/libfdt
29
30# Use a custom SYSTEM_LD command to generate the elf kernel, so we can
31# set the text segment start address, and also strip the "arm mapping
32# symbols" which have names like $a.0 and $d.2; see the document
33# "ELF for the ARM architecture" for more info on the mapping symbols.
34SYSTEM_LD= \
35	${SYSTEM_LD_BASECMD} \
36	    --defsym='text_start=kernbase + SIZEOF_HEADERS' \
37	    -o ${.TARGET} ${SYSTEM_OBJS} vers.o; \
38	$(OBJCOPY) \
39	    --wildcard \
40	    --strip-symbol='$$[adtx]*' \
41	    ${.TARGET}
42
43# Generate the .bin (no elf headers) kernel as an extra build output.
44# We must relink to generate the .bin kernel, because without headers the
45# location of everything changes.  We also strip the ARM marker symbols.
46KERNEL_EXTRA+= ${KERNEL_KO}.bin
47KERNEL_EXTRA_INSTALL+= ${KERNEL_KO}.bin
48
49${KERNEL_KO}.bin: ${SYSTEM_DEP} vers.o
50	@echo "linking ${.TARGET}"
51	@${SYSTEM_LD_BASECMD} \
52	    --defsym='text_start=kernbase' \
53	    -o ${.TARGET} ${SYSTEM_OBJS} vers.o
54	${SIZE} ${.TARGET}
55	@${OBJCOPY} \
56	    --wildcard \
57	    --strip-symbol='$$[adtx]*' \
58	    --output-target=binary \
59	    ${.TARGET}
60	@chmod 755 ${.TARGET}
61
62.if !empty(DDB_ENABLED)
63CFLAGS += -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
64.endif
65
66%BEFORE_DEPEND
67
68%OBJS
69
70%FILES.c
71
72%FILES.s
73
74%FILES.m
75
76%CLEAN
77CLEAN+=	${KERNEL_KO}.bin
78
79%RULES
80
81.include "$S/conf/kern.post.mk"
82