annotate host-tools.sh @ 1164:3a959ee85558

Make NO_CLEANUP work with sources/sections/gcc.sh
author Rob Landley <rob@landley.net>
date Sat, 10 Jul 2010 23:38:51 -0500
parents 8a0b2268c8ca
children 313c702a0984
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6b4844b708b9 dash->bash.
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1 #!/bin/bash
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e5f9681a8b3c Lots of comment updates. Add a NO_HOST_TOOLS=1 config option, and a few "time" calls to stages that didn't have them. Put native-compiler.sh after root-filesystem.sh in build so it's slightly easier to document.
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3 # Set up a known host environment, providing known versions of all required
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4 # prerequisites, built from source.
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5
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6 # This script serves a similar purpose to the temporary chroot system in
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7 # Linux From Scratch chapter 5, isolating the new build from the host system
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8 # so information from the host doesn't accidentally leak into the target.
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10 # This script populates a build/host directory with busybox and symlinks to
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11 # the host's toolchain, then adds the other packages (genext2fs, e2fsprogs,
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12 # squashfs-tools, distcc, and qemu) that might be needed to package and run
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13 # a system image. This lets the rest of the build run with the $PATH pointing
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14 # at the new build/host directory and nothing else.
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15
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16 # The tools provided by this stage are as similar as possible to the ones
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17 # provided in the final system image. The fact the system can build under
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18 # these tools is a good indication that it should be able to rebuild itself
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19 # under itself.
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20
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21 # This script is optional. The build runs fine without it, assuming the
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22 # host has all the necessary packages installed and doesn't have any extra
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23 # packages (such as libtool, pkg-config, python...) that might provide
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24 # false information to autoconf or attach themselves as dependencies to
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25 # the newly generated programs. (In practice, this can be quite fiddly.)
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26
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1cf41855bb85 More error checking.
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27 source sources/include.sh || exit 1
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db06a8c1bfed Lots of changes to move buildall.sh functionality into build.sh.
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29 echo "=== Building $STAGE_NAME"
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30
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e2fc10ede93f Consistently use STAGE_DIR as the output directory. (root-filesystem.sh already did, host-tools.sh was using $HOSTTOOLS, cross-compiler.sh was using $CROSS, and system-image.sh was using SYSIMAGE.)
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31 STAGE_DIR="${HOSTTOOLS}"
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33 # Blank $WORK but accept $STAGE_DIR if it exists. Re-running this script
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34 # should be a NOP.
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36 blank_tempdir "$WORK"
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37 mkdir -p "$STAGE_DIR" || dienow
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38
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39 # If we're not recording the host command lines, then populate a directory
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40 # with host versions of all the command line utilities we're going to install
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41 # into root-filesystem. When we're done, PATH can be set to include just this
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42 # directory and nothing else.
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43
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44 # This serves three purposes:
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45 #
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46 # 1) Enumerate exactly what we need to build the system, so we can make sure
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47 # root-filesystem has everything it needs to rebuild us. If anything is
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48 # missing from this list, the resulting root-filesystem probably won't have
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49 # it either, so it's nice to know as early as possible that we actually
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50 # needed it.
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51 #
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52 # 2) Quick smoke test that the versions of the tools we're using can compile
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53 # everything from source correctly, and thus root-filesystem should be able
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54 # to rebuild from source using those same tools.
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55 #
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56 # 3) Reduce variation from distro to distro. The build always uses the
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57 # same command line utilities no matter where we're running, because we
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58 # provide our own.
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60 # Use the new tools we build preferentially, as soon as they become
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61 # available.
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63 PATH="$STAGE_DIR:$PATH"
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65 # Sanity test for the host supporting static linking.
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66
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67 if [ "$BUILD_STATIC" != none ]
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68 then
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69 $CC "$SOURCES/toys/hello.c" --static -o "$STAGE_DIR/hello-$$" &&
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70 rm "$STAGE_DIR/hello-$$"
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71
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72 if [ $? -ne 0 ]
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73 then
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74 echo "Your host toolchain does not support static linking." >&2
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75 echo "Either install support, or export BUILD_STATIC=none" >&2
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76
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77 dienow
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78 fi
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79 fi
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80
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82 # Start by building busybox. We have no idea what strange things our host
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83 # system has (or lacks, such as "which"), so throw busybox at it first
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84 # thing.
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85
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86 [ ! -f "$STAGE_DIR/busybox" ] && build_section busybox
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87 [ ! -f "$STAGE_DIR/toybox" ] && build_section toybox
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89 # Create symlinks to the host toolchain. We need a usable existing host
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90 # toolchain in order to build anything else (even a new host toolchain),
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91 # and we don't really want to have to care what the host type is, so
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92 # just use the toolchain that's already there.
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94 # This is a little more complicated than it needs to be, because the host
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95 # toolchain may be using ccache and/or distcc, which means we need every
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96 # instance of these tools that occurs in the $PATH, in order, each in its
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97 # own fallback directory.
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98
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99 for i in ar as nm cc make ld gcc $HOST_EXTRA
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100 do
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101 if [ ! -f "$STAGE_DIR/$i" ]
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102 then
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103 # Loop through each instance, populating fallback directories.
796
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104
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105 X=0
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106 FALLBACK="$STAGE_DIR"
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
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107 PATH="$OLDPATH" "$STAGE_DIR/which" -a "$i" | while read j
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
Rob Landley <rob@landley.net>
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108 do
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
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109 mkdir -p "$FALLBACK" &&
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
Rob Landley <rob@landley.net>
parents: 897
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110 ln -sf "$j" "$FALLBACK/$i" || dienow
796
5f793a1ca658 Teach host-tools.sh to create multiple symlinks in fallback directories for ccache and distcc.
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111
899
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Rob Landley <rob@landley.net>
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112 X=$[$X+1]
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
Rob Landley <rob@landley.net>
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113 FALLBACK="$STAGE_DIR/fallback-$X"
726cac165450 Remove old RECORD_COMMANDS debris from host-tools.sh and simplify result (lots of white-noise from de-intenting the "else" case of an if/else), factor out wrap_path from sources/more/record-commands.sh, fix the "build host tools first, then wrap it afterwards" case.
Rob Landley <rob@landley.net>
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114 done
1041
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115
77024e0f4ccb Ubuntu 10.04 turned gcc into a perl script wrapper that calls gcc.real, so host-tools.sh has to copy that if it exists. Add some simple error checking the the host toolchain symlinking while we're at it.
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116 if [ ! -f "$STAGE_DIR/$i" ]
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parents: 1024
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117 then
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118 echo "Toolchain component missing: $i" >&2
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parents: 1024
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119 dienow
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120 fi
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121 fi
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122 done
792
b364ed2adf49 Fedora 11 hasn't got "which", so move the busybox build up and the host toolchain symlinks down to the end. Make sure toybox patch replaces busybox patch, and host toolchain ar replaces busybox ar.
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parents: 783
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123
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124 # Workaround for a bug in Ubuntu 10.04 where gcc became a perl script calling
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parents: 1024
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125 # gcc.real. Systems that aren't crazy don't need this.
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126
77024e0f4ccb Ubuntu 10.04 turned gcc into a perl script wrapper that calls gcc.real, so host-tools.sh has to copy that if it exists. Add some simple error checking the the host toolchain symlinking while we're at it.
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127 ET_TU_UBUNTU="$(PATH="$OLDPATH" "$STAGE_DIR/which" gcc.real)"
1042
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128 [ ! -z "$ET_TU_UBUNTU" ] && ln -sf "$ET_TU_UBUNTU" "$STAGE_DIR/gcc.real"
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129
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130 # We now have all the tools we need in $STAGE_DIR, so trim the $PATH to
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131 # remove the old ones.
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132
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133 PATH="$(hosttools_path)"
311
a791ca629d9c Upgrade to toybox-0.0.5 and linux-2.6.25-rc7. Remove use of perl in the kernel
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134
711
20ba34b54140 Rename mini-native.sh to root-filesystem.sh, since that's what it builds.
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135 # This is optionally used by root-filesystem to accelerate native builds when
20ba34b54140 Rename mini-native.sh to root-filesystem.sh, since that's what it builds.
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136 # running under qemu. It's not used to build root-filesystem, or to build
311
a791ca629d9c Upgrade to toybox-0.0.5 and linux-2.6.25-rc7. Remove use of perl in the kernel
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137 # the cross compiler, but it needs to be on the host system in order to
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138 # use the distcc acceleration trick.
301
309b574a5059 Redo the $CLEANUP logic to a cleanup function in include.sh (meaning if a
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139
571
f07d714321fe Fix a couple brown paper bag bugs (oops) and general cleanups.
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140 # Note that this one we can use off of the host, it's used on the host where
f07d714321fe Fix a couple brown paper bag bugs (oops) and general cleanups.
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141 # the system image runs. The build doesn't actually use it, we only bother
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142 # to build it at all here as a convenience for run-from-build.sh.
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143
318
b3cf2e4b74f0 Patch from Andre Ruiz to fix host-tools rebuild check. (If busybox is already
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144 # Build distcc (if it's not in $PATH)
609
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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145 if [ -z "$(which distccd)" ]
277
ffef8c1fe240 Build distcc on host if it's not already installed.
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diff changeset
146 then
571
f07d714321fe Fix a couple brown paper bag bugs (oops) and general cleanups.
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147 setupfor distcc &&
624
7641e1038cb6 The new distcc is dumb enough to use -Werror by default. Make it stop.
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148 ./configure --with-included-popt --disable-Werror &&
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149 make -j "$CPUS" &&
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150 cp distcc distccd "${STAGE_DIR}"
277
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151
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152 cleanup
277
ffef8c1fe240 Build distcc on host if it's not already installed.
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153 fi
ffef8c1fe240 Build distcc on host if it's not already installed.
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154
609
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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155 # Build genext2fs. We use it to build the ext2 image to boot qemu with
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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156 # in system-image.sh.
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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157
813
e2fc10ede93f Consistently use STAGE_DIR as the output directory. (root-filesystem.sh already did, host-tools.sh was using $HOSTTOOLS, cross-compiler.sh was using $CROSS, and system-image.sh was using SYSIMAGE.)
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158 if [ ! -f "${STAGE_DIR}"/genext2fs ]
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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159 then
609
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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160 setupfor genext2fs &&
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161 ./configure &&
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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162 make -j $CPUS &&
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163 cp genext2fs "${STAGE_DIR}"
508
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164
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165 cleanup
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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166 fi
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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167
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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168 # Build e2fsprogs.
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169
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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parents: 625
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170 # The hdb.img of run-emulator.sh and run-from-build.sh uses e2fsprogs'
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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171 # fsck.ext2 and tune2fs. These are installed by default in most distros
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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172 # (which genext2fs isn't), and genext2fs doesn't have ext3 support anyway.
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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173
1001
c381381fa460 Comment tweak.
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174 # system-image.sh will also use resize2fs from this package if
c381381fa460 Comment tweak.
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175 # SYSIMAGE_TYPE=ext2 to expand the image to SYSIMAGE_HDA_MEGS, because
c381381fa460 Comment tweak.
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176 # genext2fs is unreasonably slow at creating large files. (It has a -b
c381381fa460 Comment tweak.
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177 # option that should do this... if you want your 8-way server with 32 gigs
c381381fa460 Comment tweak.
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178 # of ram to sit there and drool for over 10 minutes to create a 2 gig file
c381381fa460 Comment tweak.
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179 # that's mostly empty. Yeah: not doing that.)
c381381fa460 Comment tweak.
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180
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b9319aa31df8 Always make mke2fs, run-from-build.sh can't make hdb.img otherwise.
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diff changeset
181 if [ ! -f "${STAGE_DIR}"/mke2fs ]
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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diff changeset
182 then
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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diff changeset
183 setupfor e2fsprogs &&
911
b69d7013e16e Fix e2fsprogs on uClibc build.
Rob Landley <rob@landley.net>
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diff changeset
184 ./configure --disable-tls --disable-nls --enable-htree &&
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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parents: 625
diff changeset
185 make -j "$CPUS" &&
813
e2fc10ede93f Consistently use STAGE_DIR as the output directory. (root-filesystem.sh already did, host-tools.sh was using $HOSTTOOLS, cross-compiler.sh was using $CROSS, and system-image.sh was using SYSIMAGE.)
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parents: 796
diff changeset
186 cp misc/{mke2fs,tune2fs} resize/resize2fs "${STAGE_DIR}" &&
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187 cp e2fsck/e2fsck "$STAGE_DIR"/fsck.ext2
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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parents: 625
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188
815
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189 cleanup
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
Rob Landley <rob@landley.net>
parents: 625
diff changeset
190 fi
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
Rob Landley <rob@landley.net>
parents: 625
diff changeset
191
609
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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parents: 608
diff changeset
192 # Squashfs is an alternate packaging option.
301
309b574a5059 Redo the $CLEANUP logic to a cleanup function in include.sh (meaning if a
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193
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61e95d49f520 Have host-tools.sh only make e2fs or squashfs tools if we need them.
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194 if [ ! -f "${STAGE_DIR}"/mksquashfs ] &&
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195 ([ -z "$SYSIMAGE_TYPE" ] || [ "$SYSIMAGE_TYPE" == squashfs ])
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196 then
1024
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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197 setupfor zlib &&
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198 ./configure &&
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199 make -j $CPUS &&
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200 mv z*.h libz.a ..
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201
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202 cleanup
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203
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204 setupfor squashfs &&
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205 cd squashfs-tools &&
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206 CC="$CC -I ../.. -L ../.." make -j $CPUS &&
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207 cp mksquashfs unsquashfs "${STAGE_DIR}" &&
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208 rm ../../{z*.h,libz.a}
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209
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8129df56091b Extended setupfor/cleanup to create binary package tarballs if the configure option BINARY_PACKAGE_TARBALLS is set. These tarballs extract into the current directory and add all the changed files installed by this package build, so you can pick and choose when assembling your own filesystem.
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210 cleanup
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211 fi
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b66d638a3844 Build User Mode Linux and have that do the ext2 packaging (for now, anyway).
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212
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153ba1a0b427 Break out the qemu build (and squashfs) into something easy to comment out,
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213 echo -e "\e[32mHost tools build complete.\e[0m"