The Design and Implementation of the FreeBSD Operating System, Second Edition
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.arm

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    1 # Makefile.arm -- with config changes.
    2 # Copyright 1990 W. Jolitz
    3 #       from: @(#)Makefile.i386 7.1 5/10/91
    4 # $FreeBSD: releng/11.2/sys/conf/Makefile.arm 327658 2018-01-07 00:04:13Z ian $
    5 #
    6 # Makefile for FreeBSD
    7 #
    8 # This makefile is constructed from a machine description:
    9 #       config machineid
   10 # Most changes should be made in the machine description
   11 #       /sys/arm/conf/``machineid''
   12 # after which you should do
   13 #        config machineid
   14 # Generic makefile changes should be made in
   15 #       /sys/conf/Makefile.arm
   16 # after which config should be rerun for all machines.
   17 #
   18 
   19 # Which version of config(8) is required.
   20 %VERSREQ=       600013
   21 
   22 STD8X16FONT?=   iso
   23 
   24 .if !defined(S)
   25 .if exists(./@/.)
   26 S=      ./@
   27 .else
   28 S=      ../../..
   29 .endif
   30 .endif
   31 .include "$S/conf/kern.pre.mk"
   32 
   33 INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include 
   34 
   35 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/ldscript.$M=ldscript.$M}
   36 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
   37 
   38 .if !defined(DEBUG) && !defined(PROFLEVEL)
   39 STRIP_FLAGS = -S
   40 .endif
   41 
   42 # We don't support gcc's thump interwork stuff, so disable it
   43 CFLAGS.gcc += -mno-thumb-interwork
   44 
   45 # We generally don't want fpu instructions in the kernel.
   46 CFLAGS.clang += -mfpu=none
   47 
   48 .if !empty(DDB_ENABLED)
   49 CFLAGS += -funwind-tables
   50 .if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30500
   51 # clang < 3.5.0 requires us to tell it to emit assembly with unwind information
   52 CFLAGS += -mllvm -arm-enable-ehabi
   53 .endif
   54 .endif
   55 
   56 # "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
   57 .if empty(KERNVIRTADDR)
   58 KERNVIRTADDR= 0xc0000000
   59 .endif
   60 
   61 # hack because genassym.c includes sys/bus.h which includes these.
   62 genassym.o: bus_if.h device_if.h
   63 
   64 SYSTEM_LD_ = ${LD} -Bdynamic -T ldscript.$M.noheader ${_LDFLAGS} \
   65           -warn-common -export-dynamic -dynamic-linker /red/herring -o \
   66            ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
   67 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
   68                 >ldscript.$M.noheader; \
   69                 ${SYSTEM_LD_}; \
   70                 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
   71                 ${KERNEL_KO}.bin; \
   72                 rm ${FULLKERNEL}.noheader
   73 
   74 FILES_CPU_FUNC = \
   75         $S/$M/$M/cpufunc_asm_arm9.S \
   76         $S/$M/$M/cpufunc_asm_xscale.S $S/$M/$M/cpufunc_asm.S \
   77         $S/$M/$M/cpufunc_asm_xscale_c3.S $S/$M/$M/cpufunc_asm_armv5_ec.S \
   78         $S/$M/$M/cpufunc_asm_fa526.S $S/$M/$M/cpufunc_asm_sheeva.S \
   79         $S/$M/$M/cpufunc_asm_pj4b.S $S/$M/$M/cpufunc_asm_armv6.S \
   80         $S/$M/$M/cpufunc_asm_armv7.S
   81 
   82 .if ${MACHINE_ARCH} != "armv6" && defined(KERNPHYSADDR)
   83 KERNEL_EXTRA=trampoline
   84 KERNEL_EXTRA_INSTALL=kernel.gz.tramp
   85 trampoline: ${KERNEL_KO}.tramp
   86 ${KERNEL_KO}.tramp: ${KERNEL_KO} $S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c
   87         echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h 
   88         sed s/${KERNVIRTADDR}/${KERNPHYSADDR}/ ldscript.$M > ldscript.$M.tramp
   89         sed s/" + SIZEOF_HEADERS"// ldscript.$M.tramp > \
   90             ldscript.$M.tramp.noheader
   91         echo "#include <machine/asm.h>" >tmphack.S
   92         echo "ENTRY(_start)" >>tmphack.S
   93         echo "bl _startC" >>tmphack.S
   94         ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
   95             -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
   96         eval $$(stat -s ${KERNEL_KO}.tmp) && \
   97             echo "#define KERNSIZE $$st_size" >>opt_kernname.h
   98         ${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker ldscript.$M.tramp \
   99             tmphack.S $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
  100             ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp
  101         ${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker \
  102             ldscript.$M.tramp.noheader \
  103             tmphack.S $S/$M/$M/elf_trampoline.c $S/$M/$M/inckern.S \
  104             ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp.noheader 
  105         ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
  106             ${KERNEL_KO}.tramp.bin 
  107         ${OBJCOPY} ${STRIP_FLAGS} ${KERNEL_KO}.tmp 
  108         echo "#define KERNNAME \"${KERNEL_KO}.tmp.gz\"" >opt_kernname.h 
  109         eval $$(stat -s ${KERNEL_KO}.tmp) && \
  110             echo "#define KERNSIZE $$st_size" >>opt_kernname.h
  111         gzip -f9 ${KERNEL_KO}.tmp
  112         eval $$(stat -s ${KERNEL_KO}.tmp.gz) && \
  113             echo "#define KERNCOMPSIZE $$st_size" >>opt_kernname.h
  114         ${CC} -O2 -ffreestanding -DKZIP -I. -I$S -c $S/kern/inflate.c -o \
  115             inflate-tramp.o
  116         ${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker ldscript.$M.tramp \
  117             -DKZIP tmphack.S $S/$M/$M/elf_trampoline.c inflate-tramp.o \
  118             $S/$M/$M/inckern.S ${FILES_CPU_FUNC} -o ${KERNEL_KO}.gz.tramp
  119         ${CC} -O -nostdlib -I. -I$S -Xlinker -T -Xlinker \
  120             ldscript.$M.tramp.noheader \
  121             -DKZIP tmphack.S $S/$M/$M/elf_trampoline.c inflate-tramp.o \
  122             $S/$M/$M/inckern.S ${FILES_CPU_FUNC} -o ${KERNEL_KO}.tramp.noheader
  123         ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
  124             ${KERNEL_KO}.gz.tramp.bin
  125         rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \
  126             inflate-tramp.o tmphack.S
  127 .endif
  128 
  129 %BEFORE_DEPEND
  130 
  131 %OBJS
  132 
  133 %FILES.c
  134 
  135 %FILES.s
  136 
  137 %FILES.m
  138 
  139 %CLEAN
  140 
  141 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
  142 
  143 CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
  144         ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
  145         ${KERNEL_KO}.gz.tramp.bin
  146 
  147 ldscript.$M: $S/conf/ldscript.$M
  148         cat $S/conf/ldscript.$M|sed s/KERNPHYSADDR/${KERNPHYSADDR}/g| \
  149           sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M
  150 %RULES
  151         
  152 .include "$S/conf/kern.post.mk"

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