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1 # Makefile.mips
2 # $FreeBSD$
3 #
4 # Makefile for FreeBSD
5 #
6 # This makefile is constructed from a machine description:
7 #       config machineid
8 # Most changes should be made in the machine description
9 #       /sys/mips/conf/``machineid''
10 # after which you should do
11 #        config machineid
12 # Generic makefile changes should be made in
13 #       /sys/conf/Makefile.mips
14 # after which config should be rerun for all machines.
15 #
16
17 # Which version of config(8) is required.
18 %VERSREQ=       600004
19
20 STD8X16FONT?=   iso
21
22 .if !defined(S)
23 .if exists(./@/.)
24 S=      ./@
25 .else
26 S=      ../../..
27 .endif
28 .endif
29 .include "$S/conf/kern.pre.mk"
30
31 LDSCRIPT_NAME?=ldscript.$M
32 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
33 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
34
35 KERNLOADADDR?=0x80001000
36 # This obscure value is defined by CFE for WR160N
37 # To be changed later
38 TRAMPLOADADDR?=0x807963c0
39
40 MKMODULESENV+=  MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
41
42 # We default to the MIPS32 ISA, if none specified in the
43 # kernel configuration file.
44 ARCH_FLAGS?=-march=mips32
45 EXTRA_FLAGS=-fno-pic -mno-abicalls -G0
46
47 HACK_EXTRA_FLAGS=-shared
48
49 # We add the -fno-pic flag to kernels because otherwise performance
50 # is extremely poor, as well as -mno-abicalls to force no ABI usage.
51 CFLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
52 HACK_EXTRA_FLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
53 TRAMP_ARCH_FLAGS?=$(ARCH_FLAGS)
54 TRAMP_EXTRA_FLAGS=${EXTRA_FLAGS} ${TRAMP_ARCH_FLAGS}
55 .if ${MACHINE_ARCH:Mmips64*} != ""
56 TRAMP_ELFSIZE=64
57 .else
58 TRAMP_ELFSIZE=32
59 .endif
60
61 # XXX hardcoded kernel entry point
62 ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE
63
64 KERNEL_EXTRA=trampoline
65 trampoline: ${KERNEL_KO}.tramp.bin
66 ${KERNEL_KO}.tramp.bin: ${KERNEL_KO} $S/$M/$M/elf_trampoline.c \
67         $S/$M/$M/inckern.S 
68         ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
69                 -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
70         sed -e s/${KERNLOADADDR}/${TRAMPLOADADDR}/ -e s/" + SIZEOF_HEADERS"// \
71                  ${LDSCRIPT_NAME} > ${LDSCRIPT_NAME}.tramp.noheader
72         ${CC} -O -nostdlib -I. -I$S ${TRAMP_EXTRA_FLAGS} ${TRAMP_LDFLAGS} -Xlinker \
73                 -T -Xlinker ${LDSCRIPT_NAME}.tramp.noheader \
74                 -DKERNNAME="\"${KERNEL_KO}.tmp\"" -DELFSIZE=${TRAMP_ELFSIZE} \
75                 $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
76                 -o ${KERNEL_KO}.tramp.elf
77         ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.elf \
78                 ${KERNEL_KO}.tramp.bin
79
80 %BEFORE_DEPEND
81
82 %OBJS
83
84 %FILES.c
85
86 %FILES.s
87
88 %FILES.m
89
90 %CLEAN
91
92 CLEAN+= ${LDSCRIPT_NAME} ${LDSCRIPT_NAME}.tramp.noheader \
93         ${KERNEL_KO}.tramp.elf ${KERNEL_KO}.tramp.bin
94
95 ${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME}
96         sed s/KERNLOADADDR/${KERNLOADADDR}/g $S/conf/${LDSCRIPT_NAME} \
97                 > ${LDSCRIPT_NAME}
98 %RULES
99
100 .include "$S/conf/kern.post.mk"