| 1 | #!/bin/bash
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| 2 |
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| 3 | # functions for cross-lfs gcc builds
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| 4 | # -----------------------------------------
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| 5 | # $LastChangedBy$
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| 6 | # $LastChangedDate$
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| 7 | # $LastChangedRevision$
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| 8 | # $HeadURL$
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| 9 |
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| 10 | gcc_specs_mod() {
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| 11 |
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| 12 | # LFS style build
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| 13 | #----------------
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| 14 |
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| 15 | # Set ARCH for header modifications.
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| 16 | # Set dl_hfiles to contain the list of header file(s) requiring modification
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| 17 | # of the location for the dynmamic linker.
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| 18 | # Set sf_hfiles to contain the list of header file(s) where we have to define
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| 19 | # startfile_prefix_spec.
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| 20 | case ${TGT_ARCH} in
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| 21 | i?86 | x86_64 )
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| 22 | ARCH=i386
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| 23 | dl_hfiles="${ARCH}/linux.h ${ARCH}/linux64.h"
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| 24 | sf_hfiles="linux.h"
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| 25 | ;;
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| 26 | ia64* )
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| 27 | ARCH=ia64
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| 28 | dl_hfiles="${ARCH}/linux.h"
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| 29 | sf_hfiles="linux.h"
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| 30 | ;;
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| 31 | powerpc* | ppc* )
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| 32 | ARCH=rs6000
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| 33 | dl_hfiles="${ARCH}/sysv4.h ${ARCH}/linux64.h"
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| 34 | sf_hfiles="${ARCH}/linux.h ${ARCH}/linux64.h"
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| 35 | ;;
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| 36 | sparc* )
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| 37 | ARCH=sparc
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| 38 | dl_hfiles="${ARCH}/linux.h ${ARCH}/linux64.h"
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| 39 | sf_hfiles="${ARCH}/linux.h ${ARCH}/linux64.h"
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| 40 | ;;
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| 41 | alpha )
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| 42 | ARCH=alpha
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| 43 | dl_hfiles="${ARCH}/linux-elf.h"
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| 44 | sf_hfiles="${ARCH}/linux.h"
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| 45 | ;;
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| 46 | arm* )
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| 47 | ARCH=arm
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| 48 | dl_hfiles="${ARCH}/linux-elf.h"
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| 49 | sf_hfiles="linux.h"
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| 50 | ;;
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| 51 | s390* )
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| 52 | ARCH=s390
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| 53 | dl_hfiles="${ARCH}/linux.h"
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| 54 | sf_hfiles="linux.h"
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| 55 | ;;
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| 56 | m68k )
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| 57 | ARCH=m68k
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| 58 | dl_hfiles="${ARCH}/linux.h"
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| 59 | sf_hfiles="linux.h"
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| 60 | ;;
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| 61 | m32r* )
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| 62 | ARCH=m32r
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| 63 | dl_hfiles="${ARCH}/linux.h"
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| 64 | sf_hfiles="linux.h"
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| 65 | ;;
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| 66 | mips* )
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| 67 | ARCH=mips
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| 68 | dl_hfiles="${ARCH}/linux.h ${ARCH}/linux64.h"
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| 69 | sf_hfiles="linux.h"
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| 70 | ;;
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| 71 | parisc* | hppa* )
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| 72 | ARCH=pa
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| 73 | dl_hfiles="${ARCH}/pa-linux.h"
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| 74 | sf_hfiles="linux.h"
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| 75 | ;;
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| 76 | xtensa )
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| 77 | ARCH=xtensa
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| 78 | dl_hfiles="${ARCH}/linux.h"
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| 79 | sf_hfiles="linux.h"
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| 80 | ;;
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| 81 | * )
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| 82 | # No support
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| 83 | echo "No support for ${TGT_ARCH}" 1>&2
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| 84 | barf
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| 85 | ;;
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| 86 | esac
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| 87 |
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| 88 | specs_set_dynamic_linker
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| 89 | specs_set_startfile_prefix_spec
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| 90 | }
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| 91 |
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| 92 | specs_set_dynamic_linker() {
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| 93 | # We want our new gcc to use our new dynamic linker
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| 94 | # ( ${TGT_TOOLS}/lib/ld-linux.so.2 ) so we will need to modify
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| 95 | # gcc/config/$ARCH/linux.h and or linux64.h
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| 96 | # also sysv4.h for ppc and linux-elf.h for alpha
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| 97 | # (where $ARCH is cpu-series type)
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| 98 | #
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| 99 | # LINK_SPEC needs to get defined so that
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| 100 | # -dynamic-linker is ${TGT_TOOLS}/lib/ld-linux.so.2 or
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| 101 | # ${TOOLS}/lib64/ld-linux.so.2#
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| 102 | # This sets --dynamic-linker correctly in the generated spec file
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| 103 |
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| 104 | cd ${SRC}/${PKGDIR}/gcc/config
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| 105 | for hfile in ${dl_hfiles} ; do
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| 106 | if [ -f ${hfile} ]; then
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| 107 | if [ ! -f ${hfile}-ORIG ]; then
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| 108 | cp ${hfile} ${hfile}-ORIG
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| 109 | fi
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| 110 |
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| 111 | sed -e "s@\(/lib\(\|32\|64\)\)\(/ld\(\|64\)\.so\.1\|/ld-linux\(\|-ia64\|-x86-64\)\.so\.\(1\|2\)\)@${TGT_TOOLS}&@g" \
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| 112 | -e "/elf.._sparc -Y P/s@/usr/lib@${TGT_TOOLS}/lib@g" \
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| 113 | ${hfile}-ORIG > ${hfile}
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| 114 | else
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| 115 | echo "${0}: specs_set_dynamic_linker" 1>&2
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| 116 | echo " header file ${hfile} does not exist" 1>&2
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| 117 | echo "" 1>&2
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| 118 | echo " Please check that the gcc_specs_mod function" 1>&2
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| 119 | echo " ( in cross-lfs/scripts/funcs/cross_gcc_funcs }" 1>&2
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| 120 | echo " is correct for your target arch." 1>&2
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| 121 | barf
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| 122 | fi
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| 123 | done
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| 124 |
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| 125 | }
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| 126 |
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| 127 | specs_set_startfile_prefix_spec() {
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| 128 |
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| 129 | # Set STARTFILE_PREFIX_SPEC appropriately.
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| 130 | echo " o setting STARTFILE_PREFIX_SPEC"
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| 131 |
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| 132 | cd ${SRC}/${PKGDIR}/gcc/config
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| 133 | for hfile in ${sf_hfiles} ; do
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| 134 | if [ -f ${hfile} ]; then
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| 135 | echo "" >> ${hfile}
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| 136 | echo "#undef STARTFILE_PREFIX_SPEC" >> ${hfile}
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| 137 | echo "#define STARTFILE_PREFIX_SPEC \"${TGT_TOOLS}/lib/\"" >> ${hfile}
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| 138 | else
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| 139 | echo "${0}: specs_set_startfile_prefix_spec" 1>&2
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| 140 | echo " header file ${hfile} does not exist" 1>&2
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| 141 | echo "" 1>&2
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| 142 | echo " Please check that the gcc_specs_mod function" 1>&2
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| 143 | echo " ( in cross-lfs/scripts/funcs/cross_gcc_funcs }" 1>&2
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| 144 | echo " is correct for your target arch." 1>&2
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| 145 | barf
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| 146 | fi
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| 147 | done
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| 148 | }
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| 149 |
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| 150 | cpp_set_cross_system_header_dir() {
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| 151 |
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| 152 | # Set cpp's default include search path, and the path
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| 153 | # fixincludes uses to search for headers
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| 154 | echo " o setting ${TGT_TOOLS}/include as cpp's default include search dir"
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| 155 | cd ${SRC}/${PKGDIR}/gcc
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| 156 | test -f Makefile.in-ORIG ||
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| 157 | mv Makefile.in Makefile.in-ORIG
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| 158 |
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| 159 | sed "s@\(^CROSS_SYSTEM_HEADER_DIR =\).*@\1 ${TGT_TOOLS}/include@g" \
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| 160 | Makefile.in-ORIG > Makefile.in
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| 161 | }
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| 162 |
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| 163 | cpp_undef_standard_include_dir() {
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| 164 |
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| 165 | # We need to stop cpp using /usr/include as the standard include directory
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| 166 | # when cross-building a target-native gcc.
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| 167 | # This is defined in gcc/cppdefault.c using STANDARD_INCLUDE_DIR
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| 168 | cd ${SRC}/${PKGDIR}/gcc
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| 169 | test ! -f cppdefault.c-ORIG &&
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| 170 | cp -p cppdefault.c cppdefault.c-ORIG
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| 171 |
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| 172 | sed -e '/#define STANDARD_INCLUDE_DIR/s@"/usr/include"@0@g' \
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| 173 | cppdefault.c-ORIG > cppdefault.c
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| 174 | }
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| 175 |
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| 176 | fixincludes_set_native_system_header_dir() {
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| 177 |
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| 178 | # For cross-building a target native gcc.
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| 179 | # Set the path fixincludes uses to search for headers
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| 180 | echo " o setting NATIVE_SYSTEM_HEADER_DIR to ${TGT_TOOLS}/include"
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| 181 | cd ${SRC}/${PKGDIR}/gcc
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| 182 | test -f Makefile.in-ORIG ||
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| 183 | mv Makefile.in Makefile.in-ORIG
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| 184 |
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| 185 | sed "s@\(^NATIVE_SYSTEM_HEADER_DIR =\).*@\1 ${TGT_TOOLS}/include@g" \
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| 186 | Makefile.in-ORIG > Makefile.in
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| 187 |
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| 188 | }
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| 189 |
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| 190 | configure_fix_flags_for_target() {
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| 191 |
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| 192 | # This is only necessary if
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| 193 | # o you are building a multi-lib cross-compiler
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| 194 | # o you are not building into a sys-root
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| 195 | # o if ${TGT_TOOLS} = ${HST_TOOLS}/${TARGET}
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| 196 | # but doesn't hurt to apply in general.
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| 197 |
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| 198 | if [ "${TGT_TOOLS}" = "${HST_TOOLS}/${TARGET}" -a ! "${USE_SYSROOT}" = "Y" ]
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| 199 | then
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| 200 |
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| 201 | # -B${HST_TOOLS}/${TARGET}/lib (set in FLAGS_FOR_TARGET)
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| 202 | # is passed during the build, which causes issues if you are installing
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| 203 | # all your target startfiles/libraries under
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| 204 | # ${HST_TOOLS}/${TARGET}/lib{,32,64}
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| 205 | #
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| 206 | # -B takes precedence over -L and doesn't get altered by
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| 207 | # the multilib spec, so you always end up linking in startfiles
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| 208 | # from ${HST_TOOLS}/${TARGET}/lib when creating a shared libgcc.
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| 209 | #
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| 210 | # This is kinda painful when it should be, say, linking 64bit
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| 211 | # startfiles in from under */lib64 when creating the 64bit shared libgcc
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| 212 | #
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| 213 | # Here we just remove -B*/lib from FLAGS_FOR_TARGET.
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| 214 | #
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| 215 | # NOTE: for gcc-3.3.3 all we had do edit was configure.in,
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| 216 | # FLAGS_FOR_TARGET was only specified here.
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| 217 | # As of gcc-3.4.0 we need to edit configure itself.
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| 218 | # So, we'll just attempt to edit both
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| 219 |
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| 220 | cd ${SRC}/${PKGDIR}
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| 221 | for file in configure configure.in; do
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| 222 | grep FLAGS_FOR_TARGET ${file} > /dev/null 2>&1 &&
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| 223 | {
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| 224 | test -f ${file}-ORIG ||
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| 225 | cp -p ${file} ${file}-ORIG
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| 226 |
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| 227 | sed '/FLAGS_FOR_TARGET.*\/lib\//s@-B[^ ]*/lib/@@g' \
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| 228 | ${file}-ORIG > ${file}
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| 229 | }
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| 230 | done
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| 231 | fi
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| 232 |
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| 233 | }
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| 234 |
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| 235 | export -f specs_set_startfile_prefix_spec
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| 236 | export -f specs_set_dynamic_linker
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| 237 | export -f gcc_specs_mod
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| 238 |
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| 239 | export -f fixincludes_set_native_system_header_dir
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| 240 |
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| 241 | export -f cpp_set_cross_system_header_dir
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| 242 | export -f cpp_undef_standard_include_dir
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| 243 | export -f configure_fix_flags_for_target
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