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e9077454e4
from projects/mips to head by hand:
r197015 | imp | 2009-09-08 21:59:46 -0600 (Tue, 08 Sep 2009) | 2 lines
Prefer PTR_LA over a naked la to work with 64-bits..
r197012 | imp | 2009-09-08 21:46:04 -0600 (Tue, 08 Sep 2009) | 3 lines
Use proper set of flags to build the tramp. this gets 64-bit almost
building and lets me debug the 'almost' :)
r197004 | imp | 2009-09-08 18:47:12 -0600 (Tue, 08 Sep 2009) | 2 lines
Use ${LDSCRIPT_NAME} in preference to ldscript.$M.
r195669 | gonzo | 2009-07-13 17:03:44 -0600 (Mon, 13 Jul 2009) | 3 lines
- Remove -mno-dsp from CFLAGS. MIPS DSP ASE is off by default
now (as it should be)
r195533 | imp | 2009-07-10 01:21:26 -0600 (Fri, 10 Jul 2009) | 4 lines
Add in the emulation selection when linking... We're still not 100%
of the way there, but we're better with it. hack.so build now, but
we die when we try to link it in.
r191079 | gonzo | 2009-04-14 16:53:22 -0600 (Tue, 14 Apr 2009) | 2 lines
- Revert changes accidentally killed by merge operation
r187418 | gonzo | 2009-01-18 19:37:10 -0700 (Sun, 18 Jan 2009) | 4 lines
- Add trampoline stuff for bootloaders that do not support ELF
- Replace arm'ish KERNPHYSADDR/KERNVIRTADDR with
KERNLOADADDR/TRAMPLOADADDR and clean configs
129 lines
3.3 KiB
Makefile
129 lines
3.3 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= 600004
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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 "$S/conf/kern.pre.mk"
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LDSCRIPT_NAME?=ldscript.$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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# XXX: Such sweeping assumptions...
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MACHINE=mips
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MACHINE_ARCH=mips
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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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MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
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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
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HACK_EXTRA_FLAGS=-shared
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.if defined(TARGET_BIG_ENDIAN)
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CFLAGS+=-EB
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SYSTEM_LD+=-EB
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EXTRA_FLAGS+=-EB
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TRAMP_LDFLAGS+=-Wl,-EB
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HACK_EXTRA_FLAGS+=-EB -Wl,-EB
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.if defined(TARGET_64BIT)
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SYSTEM_LD+=-m elf64btsmip_fbsd
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HACK_EXTRA_FLAGS+=-Wl,-m,elf64btsmip_fbsd
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.endif
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.else
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CFLAGS+=-EL
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SYSTEM_LD+=-EL
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EXTRA_FLAGS+=-EL
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TRAMP_LDFLAGS+=-Wl,-EL
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HACK_EXTRA_FLAGS+=-EL -Wl,-EL
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.if defined(TARGET_64BIT)
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SYSTEM_LD+=-m elf64ltsmip_fbsd
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HACK_EXTRA_FLAGS+=-Wl,-m,elf64ltsmip_fbsd
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.endif
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.endif
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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} $(ARCH_FLAGS)
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# XXX hardcoded kernel entry point
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ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE
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KERNEL_EXTRA=trampoline
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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} ${KERNEL_KO}.tmp
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sed s/${KERNLOADADDR}/${TRAMPLOADADDR}/ ${LDSCRIPT_NAME} | \
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sed s/" + SIZEOF_HEADERS"// > ${LDSCRIPT_NAME}.tramp.noheader
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# Generate .S file that setups stack and jumps to trampoline
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echo "#include <machine/asm.h>" >tmphack.S
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echo "ENTRY(_start)" >>tmphack.S
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echo "PTR_LA t0, kernel_end" >>tmphack.S
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echo "move sp, t0" >>tmphack.S
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echo "add sp, 0x2000" >>tmphack.S
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echo "and sp, ~0x7" >>tmphack.S
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echo "PTR_LA t0, _startC" >>tmphack.S
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echo "j t0" >>tmphack.S
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echo "END(_start)" >>tmphack.S
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echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h
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${CC} -O -nostdlib -I. -I$S ${HACK_EXTRA_FLAGS} ${TRAMP_LDFLAGS} -Xlinker \
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-T -Xlinker ${LDSCRIPT_NAME}.tramp.noheader tmphack.S \
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$S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
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-o ${KERNEL_KO}.tramp.noheader
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${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
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${KERNEL_KO}.tramp.bin \
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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.noheader ${KERNEL_KO}.tramp.bin
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${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME}
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cat $S/conf/${LDSCRIPT_NAME}|sed s/KERNLOADADDR/${KERNLOADADDR}/g \
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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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