Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/conf/Makefile.mips
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1 # Makefile.mips 2 # $FreeBSD: releng/8.3/sys/conf/Makefile.mips 215938 2010-11-27 12:26:40Z jchandra $ 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 # XXX: Such sweeping assumptions... 36 MACHINE=mips 37 MACHINE_ARCH=mips 38 KERNLOADADDR?=0x80001000 39 # This obscure value is defined by CFE for WR160N 40 # To be changed later 41 TRAMPLOADADDR?=0x807963c0 42 43 MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 44 45 # We default to the MIPS32 ISA, if none specified in the 46 # kernel configuration file. 47 ARCH_FLAGS?=-march=mips32 48 EXTRA_FLAGS=-fno-pic -mno-abicalls -G0 49 50 HACK_EXTRA_FLAGS=-shared 51 .if defined(TARGET_BIG_ENDIAN) 52 CFLAGS+=-EB 53 SYSTEM_LD+=-EB 54 EXTRA_FLAGS+=-EB 55 TRAMP_LDFLAGS+=-Wl,-EB 56 HACK_EXTRA_FLAGS+=-EB -Wl,-EB 57 .else 58 CFLAGS+=-EL 59 SYSTEM_LD+=-EL 60 EXTRA_FLAGS+=-EL 61 TRAMP_LDFLAGS+=-Wl,-EL 62 HACK_EXTRA_FLAGS+=-EL -Wl,-EL 63 .endif 64 65 66 # We add the -fno-pic flag to kernels because otherwise performance 67 # is extremely poor, as well as -mno-abicalls to force no ABI usage. 68 CFLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS) 69 HACK_EXTRA_FLAGS+=${EXTRA_FLAGS} $(ARCH_FLAGS) 70 71 # XXX hardcoded kernel entry point 72 ASM_CFLAGS+=${CFLAGS} -D_LOCORE -DLOCORE 73 74 KERNEL_EXTRA=trampoline 75 trampoline: ${KERNEL_KO}.tramp.bin 76 ${KERNEL_KO}.tramp.bin: ${KERNEL_KO} $S/$M/$M/elf_trampoline.c \ 77 $S/$M/$M/inckern.S 78 ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \ 79 -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp 80 sed s/${KERNLOADADDR}/${TRAMPLOADADDR}/ ${LDSCRIPT_NAME} | \ 81 sed s/" + SIZEOF_HEADERS"// > ${LDSCRIPT_NAME}.tramp.noheader 82 # Generate .S file that setups stack and jumps to trampoline 83 echo "#include <machine/asm.h>" >tmphack.S 84 echo "ENTRY(_start)" >>tmphack.S 85 echo "PTR_LA t0, kernel_end" >>tmphack.S 86 echo "move sp, t0" >>tmphack.S 87 echo "add sp, 0x2000" >>tmphack.S 88 echo "and sp, ~0x7" >>tmphack.S 89 echo "PTR_LA t0, _startC" >>tmphack.S 90 echo "j t0" >>tmphack.S 91 echo "END(_start)" >>tmphack.S 92 echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h 93 ${CC} -O -nostdlib -I. -I$S ${HACK_EXTRA_FLAGS} ${TRAMP_LDFLAGS} -Xlinker \ 94 -T -Xlinker ${LDSCRIPT_NAME}.tramp.noheader tmphack.S \ 95 $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \ 96 -o ${KERNEL_KO}.tramp.noheader 97 ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \ 98 ${KERNEL_KO}.tramp.bin \ 99 100 %BEFORE_DEPEND 101 102 %OBJS 103 104 %FILES.c 105 106 %FILES.s 107 108 %FILES.m 109 110 %CLEAN 111 112 CLEAN+= ${LDSCRIPT_NAME} ${LDSCRIPT_NAME}.tramp.noheader \ 113 ${KERNEL_KO}.tramp.noheader ${KERNEL_KO}.tramp.bin 114 115 ${LDSCRIPT_NAME}: $S/conf/${LDSCRIPT_NAME} 116 cat $S/conf/${LDSCRIPT_NAME}|sed s/KERNLOADADDR/${KERNLOADADDR}/g \ 117 > ${LDSCRIPT_NAME} 118 %RULES 119 120 .include "$S/conf/kern.post.mk"
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