FreeBSD/Linux Kernel Cross Reference
sys/conf/Makefile.arm
1 # Makefile.arm -- with config changes.
2 # Copyright 1990 W. Jolitz
3 # from: @(#)Makefile.i386 7.1 5/10/91
4 # $FreeBSD: releng/11.2/sys/conf/Makefile.arm 327658 2018-01-07 00:04:13Z ian $
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
22 STD8X16FONT?= iso
23
24 .if !defined(S)
25 .if exists(./@/.)
26 S= ./@
27 .else
28 S= ../../..
29 .endif
30 .endif
31 .include "$S/conf/kern.pre.mk"
32
33 INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include
34
35 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/ldscript.$M=ldscript.$M}
36 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
37
38 .if !defined(DEBUG) && !defined(PROFLEVEL)
39 STRIP_FLAGS = -S
40 .endif
41
42 # We don't support gcc's thump interwork stuff, so disable it
43 CFLAGS.gcc += -mno-thumb-interwork
44
45 # We generally don't want fpu instructions in the kernel.
46 CFLAGS.clang += -mfpu=none
47
48 .if !empty(DDB_ENABLED)
49 CFLAGS += -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
52 CFLAGS += -mllvm -arm-enable-ehabi
53 .endif
54 .endif
55
56 # "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
57 .if empty(KERNVIRTADDR)
58 KERNVIRTADDR= 0xc0000000
59 .endif
60
61 # hack because genassym.c includes sys/bus.h which includes these.
62 genassym.o: bus_if.h device_if.h
63
64 SYSTEM_LD_ = ${LD} -Bdynamic -T ldscript.$M.noheader ${_LDFLAGS} \
65 -warn-common -export-dynamic -dynamic-linker /red/herring -o \
66 ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
67 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
68 >ldscript.$M.noheader; \
69 ${SYSTEM_LD_}; \
70 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
71 ${KERNEL_KO}.bin; \
72 rm ${FULLKERNEL}.noheader
73
74 FILES_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)
83 KERNEL_EXTRA=trampoline
84 KERNEL_EXTRA_INSTALL=kernel.gz.tramp
85 trampoline: ${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/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 ${KERNEL_KO}.tramp.noheader opt_kernname.h \
126 inflate-tramp.o tmphack.S
127 .endif
128
129 %BEFORE_DEPEND
130
131 %OBJS
132
133 %FILES.c
134
135 %FILES.s
136
137 %FILES.m
138
139 %CLEAN
140
141 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
142
143 CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
144 ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
145 ${KERNEL_KO}.gz.tramp.bin
146
147 ldscript.$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"
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