6 # This makefile is constructed from a machine description:
8 # Most changes should be made in the machine description
9 # /sys/mips/conf/``machineid''
10 # after which you should do
12 # Generic makefile changes should be made in
13 # /sys/conf/Makefile.mips
14 # after which config should be rerun for all machines.
17 # Which version of config(8) is required.
29 .include "$S/conf/kern.pre.mk"
31 LDSCRIPT_NAME?=ldscript.$M
32 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
33 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
35 KERNLOADADDR?=0x80001000
36 # This obscure value is defined by CFE for WR160N
38 TRAMPLOADADDR?=0x807963c0
40 MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
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
47 HACK_EXTRA_FLAGS=-shared
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 ${MACHINE_ARCH:Mmips64*} != ""
61 # XXX hardcoded kernel entry point
62 ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE
64 KERNEL_EXTRA=trampoline
65 trampoline: ${KERNEL_KO}.tramp.bin
66 ${KERNEL_KO}.tramp.bin: ${KERNEL_KO} $S/$M/$M/elf_trampoline.c \
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
92 CLEAN+= ${LDSCRIPT_NAME} ${LDSCRIPT_NAME}.tramp.noheader \
93 ${KERNEL_KO}.tramp.elf ${KERNEL_KO}.tramp.bin
95 ${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME}
96 sed s/KERNLOADADDR/${KERNLOADADDR}/g $S/conf/${LDSCRIPT_NAME} \
100 .include "$S/conf/kern.post.mk"