188d3a278e
This patch fix trampoline build. inckern.S increases stack and calls _startC of elf_trampoline, so inckern.S should be called before elf_trampoline. gcc4.2 puts text (code) into image according to order of source files in this call, so order has changed. In addition make will install trampoline kernel. It allows to use kernel for firmware build. Submitted by: Michael Zhilin <mizhka@gmail.com> Differential Revision: https://reviews.freebsd.org/D6242
103 lines
2.6 KiB
Makefile
103 lines
2.6 KiB
Makefile
# Makefile.mips
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# $FreeBSD$
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#
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# Makefile for FreeBSD
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#
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# This makefile is constructed from a machine description:
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# config machineid
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# Most changes should be made in the machine description
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# /sys/mips/conf/``machineid''
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# after which you should do
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# config machineid
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# Generic makefile changes should be made in
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# /sys/conf/Makefile.mips
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# after which config should be rerun for all machines.
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#
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# Which version of config(8) is required.
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%VERSREQ= 600012
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STD8X16FONT?= iso
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.if !defined(S)
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.if exists(./@/.)
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S= ./@
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.else
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S= ../../..
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.endif
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.endif
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.include "$S/conf/kern.pre.mk"
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INCLUDES+= -I$S/contrib/libfdt
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LDSCRIPT_NAME?=ldscript.$M
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SYSTEM_LD:= ${SYSTEM_LD:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
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SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/${LDSCRIPT_NAME}=${LDSCRIPT_NAME}}
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KERNLOADADDR?=0x80001000
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# This obscure value is defined by CFE for WR160N
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# To be changed later
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TRAMPLOADADDR?=0x807963c0
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# We default to the MIPS32 ISA, if none specified in the
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# kernel configuration file.
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ARCH_FLAGS?=-march=mips32
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EXTRA_FLAGS=-fno-pic -mno-abicalls -G0 -DKERNLOADADDR=${KERNLOADADDR}
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HACK_EXTRA_FLAGS=-shared
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# We add the -fno-pic flag to kernels because otherwise performance
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# is extremely poor, as well as -mno-abicalls to force no ABI usage.
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CFLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
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HACK_EXTRA_FLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS)
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TRAMP_ARCH_FLAGS?=$(ARCH_FLAGS)
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TRAMP_EXTRA_FLAGS=${EXTRA_FLAGS} ${TRAMP_ARCH_FLAGS}
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.if ${MACHINE_ARCH:Mmips64*} != ""
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TRAMP_ELFSIZE=64
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.else
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TRAMP_ELFSIZE=32
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.endif
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ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE
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.if !defined(WITHOUT_KERNEL_TRAMPOLINE)
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KERNEL_EXTRA=trampoline
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KERNEL_EXTRA_INSTALL=${KERNEL_KO}.tramp.bin
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trampoline: ${KERNEL_KO}.tramp.bin
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${KERNEL_KO}.tramp.bin: ${KERNEL_KO} $S/$M/$M/elf_trampoline.c \
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$S/$M/$M/inckern.S
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${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
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-g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
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sed -e s/${KERNLOADADDR}/${TRAMPLOADADDR}/ -e s/" + SIZEOF_HEADERS"// \
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${LDSCRIPT_NAME} > ${LDSCRIPT_NAME}.tramp.noheader
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${CC} -O -nostdlib -I. -I$S ${TRAMP_EXTRA_FLAGS} ${TRAMP_LDFLAGS} -Xlinker \
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-T -Xlinker ${LDSCRIPT_NAME}.tramp.noheader \
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-DKERNNAME="\"${KERNEL_KO}.tmp\"" -DELFSIZE=${TRAMP_ELFSIZE} \
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$S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c \
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-o ${KERNEL_KO}.tramp.elf
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${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.elf \
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${KERNEL_KO}.tramp.bin
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.endif
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%BEFORE_DEPEND
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%OBJS
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%FILES.c
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%FILES.s
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%FILES.m
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%CLEAN
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CLEAN+= ${LDSCRIPT_NAME} ${LDSCRIPT_NAME}.tramp.noheader \
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${KERNEL_KO}.tramp.elf ${KERNEL_KO}.tramp.bin
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${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME}
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sed s/KERNLOADADDR/${KERNLOADADDR}/g $S/conf/${LDSCRIPT_NAME} \
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> ${LDSCRIPT_NAME}
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%RULES
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.include "$S/conf/kern.post.mk"
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