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# Makefile.mips
# $FreeBSD$
#
# Makefile for FreeBSD
#
# This makefile is constructed from a machine description:
# config machineid
# Most changes should be made in the machine description
# /sys/mips/conf/``machineid''
# after which you should do
# config machineid
# Generic makefile changes should be made in
# /sys/conf/Makefile.mips
# after which config should be rerun for all machines.
#
# Which version of config(8) is required.
%VERSREQ= 600012
STD8X16FONT?= iso
.if !defined(S)
.if exists(./@/.)
S= ./@
.else
S= ../../..
.endif
.endif
.include "$S/conf/kern.pre.mk"
INCLUDES+= -I$S/contrib/libfdt
LDSCRIPT_NAME?=ldscript.$M
SYSTEM_LD:= ${SYSTEM_LD:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
KERNLOADADDR?=0x80001000
# This obscure value is defined by CFE for WR160N
# To be changed later
TRAMPLOADADDR?=0x807963c0
# We default to the MIPS32 ISA, if none specified in the
# kernel configuration file.
ARCH_FLAGS?=-march=mips32
EXTRA_FLAGS=-fno-pic -mno-abicalls -G0 -DKERNLOADADDR=${KERNLOADADDR}
HACK_EXTRA_FLAGS=-shared
# We add the -fno-pic flag to kernels because otherwise performance
# is extremely poor, as well as -mno-abicalls to force no ABI usage.
CFLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
HACK_EXTRA_FLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
TRAMP_ARCH_FLAGS?=$(ARCH_FLAGS)
TRAMP_EXTRA_FLAGS=${EXTRA_FLAGS} ${TRAMP_ARCH_FLAGS}
# Kernel code is always compiled with soft-float on MIPS
TRAMP_EXTRA_FLAGS+=-msoft-float
.if ${MACHINE_ARCH:Mmips64*} != ""
TRAMP_ELFSIZE=64
.else
TRAMP_ELFSIZE=32
.endif
ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE
.if !defined(WITHOUT_KERNEL_TRAMPOLINE)
KERNEL_EXTRA=trampoline
KERNEL_EXTRA_INSTALL=${KERNEL_KO}.tramp.bin
trampoline: ${KERNEL_KO}.tramp.bin
${KERNEL_KO}.tramp.bin: ${KERNEL_KO} $S/$M/$M/elf_trampoline.c \
$S/$M/$M/inckern.S
${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
-g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
sed -e s/${KERNLOADADDR}/${TRAMPLOADADDR}/ -e s/" + SIZEOF_HEADERS"// \
${LDSCRIPT_NAME} > ${LDSCRIPT_NAME}.tramp.noheader
${CC} -O -nostdlib -I. -I$S ${TRAMP_EXTRA_FLAGS} ${TRAMP_LDFLAGS} -Xlinker \
-T -Xlinker ${LDSCRIPT_NAME}.tramp.noheader \
-DKERNNAME="\"${KERNEL_KO}.tmp\"" -DELFSIZE=${TRAMP_ELFSIZE} \
$S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c \
-o ${KERNEL_KO}.tramp.elf
${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.elf \
${KERNEL_KO}.tramp.bin
.endif
%BEFORE_DEPEND
%OBJS
%FILES.c
%FILES.s
%FILES.m
%CLEAN
CLEAN+= ${LDSCRIPT_NAME} ${LDSCRIPT_NAME}.tramp.noheader \
${KERNEL_KO}.tramp.elf ${KERNEL_KO}.tramp.bin
${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME}
sed s/KERNLOADADDR/${KERNLOADADDR}/g $S/conf/${LDSCRIPT_NAME} \
> ${LDSCRIPT_NAME}
%RULES
.include "$S/conf/kern.post.mk"
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