Makefile.arm revision 344379 
1# Makefile.arm -- with config changes.
2# Copyright 1990 W. Jolitz
3#	from: @(#)Makefile.i386	7.1 5/10/91
4# $FreeBSD: stable/11/sys/conf/Makefile.arm 344379 2019-02-20 19:32:02Z kevans $
5#
6# Makefile for FreeBSD
7#
8# This makefile is constructed from a machine description:
9#	config machineid
10# Most changes should be made in the machine description
11#	/sys/arm/conf/``machineid''
12# after which you should do
13#	 config machineid
14# Generic makefile changes should be made in
15#	/sys/conf/Makefile.arm
16# after which config should be rerun for all machines.
17#
18
19# Which version of config(8) is required.
20%VERSREQ=	600013
21
22STD8X16FONT?=	iso
23
24.if !defined(S)
25.if exists(./@/.)
26S=	./@
27.else
28S=	../../..
29.endif
30.endif
31.include "$S/conf/kern.pre.mk"
32
33INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include 
34
35SYSTEM_LD:= ${SYSTEM_LD:$S/conf/ldscript.$M=ldscript.$M}
36SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
37
38.if !defined(DEBUG) && !defined(PROFLEVEL)
39STRIP_FLAGS = -S
40.endif
41
42# We don't support gcc's thump interwork stuff, so disable it
43CFLAGS.gcc += -mno-thumb-interwork
44
45# We generally don't want fpu instructions in the kernel.
46CFLAGS.clang += -mfpu=none
47
48.if !empty(DDB_ENABLED)
49CFLAGS += -funwind-tables
50.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30500
51# clang < 3.5.0 requires us to tell it to emit assembly with unwind information
52CFLAGS += -mllvm -arm-enable-ehabi
53.endif
54.endif
55
56# "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
57.if empty(KERNVIRTADDR)
58KERNVIRTADDR= 0xc0000000
59.endif
60
61# hack because genassym.c includes sys/bus.h which includes these.
62genassym.o: bus_if.h device_if.h
63
64SYSTEM_LD_ = ${LD} -Bdynamic -T ldscript.$M.noheader ${_LDFLAGS} \
65	  -warn-common -export-dynamic -dynamic-linker /red/herring -o \
66	   ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
67SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
68		>ldscript.$M.noheader; \
69		${SYSTEM_LD_}; \
70		${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
71		${KERNEL_KO}.bin; \
72		rm ${FULLKERNEL}.noheader
73
74FILES_CPU_FUNC = \
75	$S/$M/$M/cpufunc_asm_arm9.S \
76	$S/$M/$M/cpufunc_asm_xscale.S $S/$M/$M/cpufunc_asm.S \
77	$S/$M/$M/cpufunc_asm_xscale_c3.S $S/$M/$M/cpufunc_asm_armv5_ec.S \
78	$S/$M/$M/cpufunc_asm_fa526.S $S/$M/$M/cpufunc_asm_sheeva.S \
79	$S/$M/$M/cpufunc_asm_pj4b.S $S/$M/$M/cpufunc_asm_armv6.S \
80	$S/$M/$M/cpufunc_asm_armv7.S
81
82.if ${MACHINE_ARCH} != "armv6" && defined(KERNPHYSADDR)
83KERNEL_EXTRA=trampoline
84KERNEL_EXTRA_INSTALL=kernel.gz.tramp
85trampoline: ${KERNEL_KO}.tramp
86${KERNEL_KO}.tramp: ${KERNEL_KO} $S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c
87	echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h 
88	sed s/${KERNVIRTADDR}/${KERNPHYSADDR}/ ldscript.$M > ldscript.$M.tramp
89	sed s/" + SIZEOF_HEADERS"// ldscript.$M.tramp > \
90	    ldscript.$M.tramp.noheader
91	echo "#include <machine/asm.h>" >tmphack.S
92	echo "ENTRY(_start)" >>tmphack.S
93	echo "bl _startC" >>tmphack.S
94	${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
95	    -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
96	eval $$(stat -s ${KERNEL_KO}.tmp) && \
97	    echo "#define KERNSIZE $$st_size" >>opt_kernname.h
98	${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker ldscript.$M.tramp \
99	    tmphack.S $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
100	    ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp
101	${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker \
102	    ldscript.$M.tramp.noheader \
103	    tmphack.S $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
104	    ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp.noheader 
105	${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
106	    ${KERNEL_KO}.tramp.bin 
107	${OBJCOPY} ${STRIP_FLAGS} ${KERNEL_KO}.tmp 
108	echo "#define KERNNAME \"${KERNEL_KO}.tmp.gz\"" >opt_kernname.h 
109	eval $$(stat -s ${KERNEL_KO}.tmp) && \
110	    echo "#define KERNSIZE $$st_size" >>opt_kernname.h
111	gzip -f9 ${KERNEL_KO}.tmp
112	eval $$(stat -s ${KERNEL_KO}.tmp.gz) && \
113	    echo "#define KERNCOMPSIZE $$st_size" >>opt_kernname.h
114	${CC} -O2 -ffreestanding -DKZIP -I. -I$S -c $S/kern/subr_inflate.c -o \
115	    inflate-tramp.o
116	${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker ldscript.$M.tramp \
117	    -DKZIP tmphack.S $S/$M/$M/elf_trampoline.c inflate-tramp.o \
118	    $S/$M/$M/inckern.S ${FILES_CPU_FUNC} -o ${KERNEL_KO}.gz.tramp
119	${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker \
120	    ldscript.$M.tramp.noheader \
121	    -DKZIP tmphack.S $S/$M/$M/elf_trampoline.c inflate-tramp.o \
122	    $S/$M/$M/inckern.S ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp.noheader
123	${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
124	    ${KERNEL_KO}.gz.tramp.bin
125	rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \
126	    inflate-tramp.o tmphack.S
127.endif
128
129%BEFORE_DEPEND
130
131%OBJS
132
133%FILES.c
134
135%FILES.s
136
137%FILES.m
138
139%CLEAN
140
141CLEAN+=	ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
142
143CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
144	ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
145	${KERNEL_KO}.gz.tramp.bin
146
147ldscript.$M: $S/conf/ldscript.$M
148	cat $S/conf/ldscript.$M|sed s/KERNPHYSADDR/${KERNPHYSADDR}/g| \
149	  sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M
150%RULES
151	
152.include "$S/conf/kern.post.mk"
153