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annotate cross-compiler.sh @ 34:ad1cfcb043c7

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Cleaup pass: Break out shell functions and variable definitions into include.sh. Also rename build.sh to cross-compiler.sh.
author Rob Landley <rob@landley.net>
date Mon, 11 Dec 2006 17:14:36 -0500
parents build.sh@bf2e771f4ba5
children 2f1a6a4645ed
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9add2b1ccdfa First version of new build script. Does nothing, but does it correctly.
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1 #!/bin/sh
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3 # Get lots of predefined environment variables and shell functions.
3
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4
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5 STAGE="build-cross"
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6 source include.sh
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8 # Build and install binutils
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9
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10 setupfor binutils build-binutils
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11 "${CURSRC}/configure" --prefix="${CROSS}" --host=${CROSS_HOST} \
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12 --target=${CROSS_TARGET} --with-lib-path=lib --disable-nls \
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13 --disable-shared --disable-multilib $BINUTILS_FLAGS &&
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14 make configure-host &&
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15 make &&
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16 make install &&
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17 cd .. &&
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18 mkdir -p "${CROSS}/include" &&
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19 cp binutils-*/include/libiberty.h "${CROSS}/include" &&
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20 $CLEANUP binutils-* build-binutils
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21
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22 [ $? -ne 0 ] && dienow
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24 # Build and install gcc
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25
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26 setupfor gcc-core build-gcc gcc-
3
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27 "${CURSRC}/configure" --prefix="${CROSS}" --host=${CROSS_HOST} \
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28 --target=${CROSS_TARGET} --disable-threads --enable-languages=c \
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29 --disable-multilib --disable-nls --disable-shared $GCC_FLAGS
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30 #--with-local-prefix="${CROSS}" \
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31 # --enable-languages=c,c++ --enable-__cxa_atexit --enable-c99 \
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32 # --enable-long-long --enable-threads=posix &&
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33 make all-gcc &&
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34 make install-gcc &&
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35 cd .. &&
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37 # Move the gcc internal libraries and headers somewhere sane.
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39 mkdir -p "${CROSS}"/gcc &&
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40 mv "${CROSS}"/lib/gcc/*/*/include "${CROSS}"/gcc/include &&
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41 mv "${CROSS}"/lib/gcc/*/* "${CROSS}"/gcc/lib &&
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42 $CLEANUP "${CURSRC}" build-gcc "${CROSS}"/{lib/gcc,gcc/lib/install-tools} &&
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43
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44 # Build and install gcc wrapper script.
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45
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46 GCCNAME="$(echo "${CROSS}"/bin/*-gcc)" &&
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47 mv "$GCCNAME" "${CROSS}"/bin/gcc-unwrapped &&
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48 gcc "${TOP}"/sources/toys/gcc-uClibc.c -Os -s -o "$GCCNAME"
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50 [ $? -ne 0 ] && dienow
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52 # Install the linux kernel, and kernel headers.
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53
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54 setupfor linux
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55 # Configure kernel
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56 ##mv "${WORK}"/config-linux .config &&
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57 ##(yes "" | make ARCH="${KARCH}" oldconfig) &&
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58 # Install Linux kernel headers (for use by uClibc).
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59 make headers_install ARCH="${KARCH}" INSTALL_HDR_PATH="${CROSS}" &&
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60 # Build bootable kernel for target.
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61 ##make ARCH="${KARCH}" CROSS_COMPILE="${CROSS_TARGET}"- &&
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62 ##cp "${KERNEL_PATH}" "${CROSS}"/zImage &&
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63 cd .. &&
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64 $CLEANUP linux-*
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65
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66 [ $? -ne 0 ] && dienow
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68 # Build and install uClibc
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69
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70 setupfor uClibc
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71 cp "${WORK}"/config-uClibc .config &&
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72 (yes "" | make CROSS="${CROSS_TARGET}"- oldconfig) &&
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73 make CROSS="${CROSS_TARGET}"- KERNEL_SOURCE="${CROSS}" &&
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74 #make CROSS="${CROSS_TARGET}"- utils &&
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75 # The kernel headers are already installed, but uClibc's install will try to
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76 # be "helpful" and copy them over themselves, at which point hilarity ensues.
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77 # Make it not do that.
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78 rm include/{asm,asm-generic,linux} &&
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79 make CROSS="${CROSS_TARGET}"- KERNEL_SOURCE="${CROSS}"/ \
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80 RUNTIME_PREFIX="${CROSS}"/ DEVEL_PREFIX="${CROSS}"/ \
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81 install_runtime install_dev &&
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82 # The uClibc build uses ./include instead of ${CROSS}/include, so the symlinks
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83 # need to come back. (Yes, it links against the _headers_ from the source,
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84 # but against the _libraries_ from the destination. Hence needing to install
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85 # libc.so before building utils.)
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86 ln -s "${CROSS}"/include/linux include/linux &&
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87 ln -s "${CROSS}"/include/asm include/asm &&
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88 ln -s "${CROSS}"/include/asm-generic include/asm-generic &&
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89 make CROSS=${CROSS_TARGET}- RUNTIME_PREFIX="${CROSS}"/ install_utils &&
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90 cd .. &&
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91 $CLEANUP uClibc*
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92
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93 [ $? -ne 0 ] && dienow
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94
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95 # A quick hello world program to test the cross-compiler out.
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96
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97 cat > "$WORK"/hello.c << 'EOF' &&
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98 #include <stdio.h>
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99
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100 int main(int argc, char *argv[])
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101 {
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102 printf("Hello world!\n");
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103 return 0;
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104 }
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105 EOF
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106
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107 # Build hello.c dynamic, then static, to verify header/library paths.
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108
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109 "$GCCNAME" -Os "$WORK"/hello.c -o "$WORK"/hello &&
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110 "$GCCNAME" -Os -static "$WORK"/hello.c -o "$WORK"/hello &&
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111 [ x"$(qemu-"${KARCH}" "${WORK}"/hello)" == x"Hello world!" ] &&
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112 echo Cross-toolchain seems to work.
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113
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114 [ $? -ne 0 ] && dienow
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115
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116 # Change the FSF's crazy names to something reasonable.
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117
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118 cd "${CROSS}"/bin &&
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119 for i in "${ARCH}"-*
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120 do
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121 strip "$i"
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122 mv "$i" "${ARCH}"-"$(echo "$i" | sed 's/.*-//')"
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123 done
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124
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125 cat > "${CROSS}"/README << "EOF" &&
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126 Cross compiler for $ARCH
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127 From http://landley.net/code/firmware
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128
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129 To use: Add the \"bin\" directory to your \$PATH, and use \"$ARCH-gcc\" as
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130 your compiler.
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131
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132 The syntax used to build the Linux kernel is:
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133
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134 make ARCH="${KARCH}" CROSS_COMPILE="${ARCH}"-
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135
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136 EOF
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137
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138 # Tar up the cross compiler.
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139 cd "${TOP}"
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140 tar cjvCf build cross-compiler-"${ARCH}".tar.bz2 cross-compiler-"${ARCH}" &&
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141
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142 [ $? -ne 0 ] && dienow