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: head/sys/conf/Makefile.arm 336829 2018-07-28 12:50:09Z andrew $
    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} -m ${LD_EMULATION} -Bdynamic -T ldscript.$M.noheader \
   65         ${_LDFLAGS} --no-warn-mismatch --warn-common --export-dynamic \
   66         --dynamic-linker /red/herring \
   67         -o ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
   68 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
   69                 >ldscript.$M.noheader; \
   70                 ${SYSTEM_LD_}; \
   71                 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
   72                 ${KERNEL_KO}.bin; \
   73                 rm ${FULLKERNEL}.noheader
   74 
   75 FILES_CPU_FUNC = \
   76         $S/$M/$M/cpufunc_asm_armv5_ec.S \
   77         $S/$M/$M/cpufunc_asm_sheeva.S
   78 
   79 .if ${MACHINE_ARCH:Marmv[67]*} == "" && defined(KERNPHYSADDR)
   80 KERNEL_EXTRA=trampoline
   81 KERNEL_EXTRA_INSTALL=kernel.gz.tramp
   82 trampoline: ${KERNEL_KO}.tramp
   83 ${KERNEL_KO}.tramp: ${KERNEL_KO} $S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c
   84         echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h 
   85         sed s/${KERNVIRTADDR}/${KERNPHYSADDR}/ ldscript.$M > ldscript.$M.tramp
   86         sed s/" + SIZEOF_HEADERS"// ldscript.$M.tramp > \
   87             ldscript.$M.tramp.noheader
   88         echo "#include <machine/asm.h>" >tmphack.S
   89         echo "ENTRY(_start)" >>tmphack.S
   90         echo "bl _startC" >>tmphack.S
   91         ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
   92             -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
   93         eval $$(stat -s ${KERNEL_KO}.tmp) && \
   94             echo "#define KERNSIZE $$st_size" >>opt_kernname.h
   95         ${CC} -O -nostdlib -I. -I$S \
   96             -Xlinker -T -Xlinker ldscript.$M.tramp \
   97             -DELF_TRAMPOLINE \
   98             tmphack.S \
   99             $S/$M/$M/elf_trampoline.c \
  100             $S/$M/$M/inckern.S \
  101             ${FILES_CPU_FUNC} \
  102             -o ${KERNEL_KO}.tramp
  103         ${CC} -O -nostdlib -I. -I$S \
  104             -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
  105             -DELF_TRAMPOLINE \
  106             tmphack.S \
  107             $S/$M/$M/elf_trampoline.c \
  108             $S/$M/$M/inckern.S \
  109             ${FILES_CPU_FUNC} \
  110             -o ${KERNEL_KO}.tramp.noheader 
  111         ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
  112             ${KERNEL_KO}.tramp.bin 
  113         ${OBJCOPY} ${STRIP_FLAGS} ${KERNEL_KO}.tmp 
  114         echo "#define KERNNAME \"${KERNEL_KO}.tmp.gz\"" >opt_kernname.h 
  115         eval $$(stat -s ${KERNEL_KO}.tmp) && \
  116             echo "#define KERNSIZE $$st_size" >>opt_kernname.h
  117         gzip -f9 ${KERNEL_KO}.tmp
  118         eval $$(stat -s ${KERNEL_KO}.tmp.gz) && \
  119             echo "#define KERNCOMPSIZE $$st_size" >>opt_kernname.h
  120         ${CC} -O2 -ffreestanding -I. -I$S -c \
  121             -DKZIP -DELF_TRAMPOLINE \
  122             $S/kern/subr_inflate.c \
  123             -o inflate-tramp.o
  124         ${CC} -O -nostdlib -I. -I$S \
  125             -Xlinker -T -Xlinker ldscript.$M.tramp \
  126             -DKZIP -DELF_TRAMPOLINE \
  127             tmphack.S \
  128             $S/$M/$M/elf_trampoline.c \
  129             inflate-tramp.o \
  130             $S/$M/$M/inckern.S \
  131             ${FILES_CPU_FUNC} \
  132             -o ${KERNEL_KO}.gz.tramp
  133         ${CC} -O -nostdlib -I. -I$S \
  134             -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
  135             -DKZIP -DELF_TRAMPOLINE \
  136             tmphack.S \
  137             $S/$M/$M/elf_trampoline.c \
  138             inflate-tramp.o \
  139             $S/$M/$M/inckern.S \
  140             ${FILES_CPU_FUNC} \
  141             -o ${KERNEL_KO}.tramp.noheader
  142         ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
  143             ${KERNEL_KO}.gz.tramp.bin
  144         rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \
  145             inflate-tramp.o tmphack.S
  146 .endif
  147 
  148 %BEFORE_DEPEND
  149 
  150 %OBJS
  151 
  152 %FILES.c
  153 
  154 %FILES.s
  155 
  156 %FILES.m
  157 
  158 %CLEAN
  159 
  160 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
  161 
  162 CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
  163         ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
  164         ${KERNEL_KO}.gz.tramp.bin
  165 
  166 ldscript.$M: $S/conf/ldscript.$M
  167         cat $S/conf/ldscript.$M|sed s/KERNPHYSADDR/${KERNPHYSADDR}/g| \
  168           sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M
  169 %RULES
  170         
  171 .include "$S/conf/kern.post.mk"

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