annotate host-tools.sh @ 1582:6a8114c148d1

Lots of small improvements: check for toybox instead of busybox for host-tools $PATH adjustment, better manifest generation (with toybox in list), make package_cache function to find extracted source (so root-image.sh works when packages contains linux-git snapshot), fix more/record-commands.sh path adjustment.
author Rob Landley <rob@landley.net>
date Sun, 17 Feb 2013 22:25:00 -0600
parents c3b91b70cc42
children a242ea5d6bb4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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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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6a8114c148d1 Lots of small improvements: check for toybox instead of busybox for host-tools $PATH adjustment, better manifest generation (with toybox in list), make package_cache function to find extracted source (so root-image.sh works when packages contains linux-git snapshot), fix more/record-commands.sh path adjustment.
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27 SAVEPATH="$PATH"
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1cf41855bb85 More error checking.
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28 source sources/include.sh || exit 1
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29
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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 $CROSS, and system-image.sh was using SYSIMAGE.)
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30 STAGE_DIR="${HOSTTOOLS}"
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32 # Blank $WORK but accept $STAGE_DIR if it exists. Re-running this script
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33 # should be a NOP.
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35 blank_tempdir "$WORK"
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36 mkdir -p "$STAGE_DIR" || dienow
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37
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38 # If we're not recording the host command lines, then populate a directory
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39 # with host versions of all the command line utilities we're going to install
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40 # into root-filesystem. When we're done, PATH can be set to include just this
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41 # directory and nothing else.
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42
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43 # This serves three purposes:
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44 #
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45 # 1) Enumerate exactly what we need to build the system, so we can make sure
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46 # root-filesystem has everything it needs to rebuild us. If anything is
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47 # missing from this list, the resulting root-filesystem probably won't have
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48 # it either, so it's nice to know as early as possible that we actually
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49 # needed it.
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50 #
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51 # 2) Quick smoke test that the versions of the tools we're using can compile
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52 # everything from source correctly, and thus root-filesystem should be able
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53 # to rebuild from source using those same tools.
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54 #
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55 # 3) Reduce variation from distro to distro. The build always uses the
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56 # same command line utilities no matter where we're running, because we
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57 # provide our own.
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59 # Use the new tools we build preferentially, as soon as they become
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60 # available.
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62 PATH="$(hosttools_path):$PATH"
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64 # Sanity test for the host supporting static linking.
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65
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66 if [ "$BUILD_STATIC" != none ]
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67 then
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68 $CC "$SOURCES/toys/hello.c" --static -o "$STAGE_DIR/hello-$$" &&
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69 rm "$STAGE_DIR/hello-$$"
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70
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71 if [ $? -ne 0 ]
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72 then
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73 echo "Your host toolchain does not support static linking." >&2
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74 echo "Either install support, or export BUILD_STATIC=none" >&2
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75
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76 dienow
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77 fi
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78 fi
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79
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81 # Start by building busybox. We have no idea what strange things our host
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82 # system has (or lacks, such as "which"), so throw busybox at it first
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83 # thing.
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84
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85 [ ! -f "$STAGE_DIR/busybox" ] && build_section busybox
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86 [ ! -f "$STAGE_DIR/toybox" ] && build_section toybox
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87
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88 # Create symlinks to the host toolchain. We need a usable existing host
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89 # toolchain in order to build anything else (even a new host toolchain),
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90 # and we don't really want to have to care what the host type is, so
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91 # just use the toolchain that's already there.
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93 # This is a little more complicated than it needs to be, because the host
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94 # toolchain may be using ccache and/or distcc, which means we need every
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95 # instance of these tools that occurs in the $PATH, in order, each in its
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96 # own fallback directory.
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97
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98 for i in ar as nm cc make ld gcc $HOST_EXTRA
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99 do
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100 if [ ! -f "$STAGE_DIR/$i" ]
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101 then
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102 # Loop through each instance, populating fallback directories.
796
5f793a1ca658 Teach host-tools.sh to create multiple symlinks in fallback directories for ccache and distcc.
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103
899
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104 X=0
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105 FALLBACK="$STAGE_DIR"
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6a8114c148d1 Lots of small improvements: check for toybox instead of busybox for host-tools $PATH adjustment, better manifest generation (with toybox in list), make package_cache function to find extracted source (so root-image.sh works when packages contains linux-git snapshot), fix more/record-commands.sh path adjustment.
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parents: 1552
diff changeset
106 PATH="$SAVEPATH" "$STAGE_DIR/which" -a "$i" | while read j
899
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Rob Landley <rob@landley.net>
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diff changeset
107 do
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parents: 1482
diff changeset
108 if [ ! -e "$FALLBACK/$i" ]
8e98296410f3 Another attempt to make more/record-commands.sh and host-tools.sh play together.
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109 then
8e98296410f3 Another attempt to make more/record-commands.sh and host-tools.sh play together.
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diff changeset
110 mkdir -p "$FALLBACK" &&
8e98296410f3 Another attempt to make more/record-commands.sh and host-tools.sh play together.
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parents: 1482
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111 ln -sf "$j" "$FALLBACK/$i" || dienow
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diff changeset
112 fi
796
5f793a1ca658 Teach host-tools.sh to create multiple symlinks in fallback directories for ccache and distcc.
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113
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Rob Landley <rob@landley.net>
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114 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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115 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.
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parents: 897
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116 done
1041
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117
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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parents: 1024
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118 if [ ! -f "$STAGE_DIR/$i" ]
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parents: 1024
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119 then
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parents: 1024
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120 echo "Toolchain component missing: $i" >&2
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parents: 1024
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121 dienow
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parents: 1024
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122 fi
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123 fi
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Rob Landley <rob@landley.net>
parents: 897
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124 done
792
b364ed2adf49 Fedora 11 hasn't got "which", so move the busybox build up and the host toolchain symlinks down to the end. Make sure toybox patch replaces busybox patch, and host toolchain ar replaces busybox ar.
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parents: 783
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125
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parents: 1024
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126 # Workaround for a bug in Ubuntu 10.04 where gcc became a perl script calling
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parents: 1024
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127 # gcc.real. Systems that aren't crazy don't need this.
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128
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129 ET_TU_UBUNTU="$(PATH="$SAVEPATH" "$STAGE_DIR/which" gcc.real)"
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130 [ ! -z "$ET_TU_UBUNTU" ] && ln -s "$ET_TU_UBUNTU" "$STAGE_DIR/gcc.real" 2>/dev/null
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131
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132 # We now have all the tools we need in $STAGE_DIR, so trim the $PATH to
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133 # remove the old ones.
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b364ed2adf49 Fedora 11 hasn't got "which", so move the busybox build up and the host toolchain symlinks down to the end. Make sure toybox patch replaces busybox patch, and host toolchain ar replaces busybox ar.
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134
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135 PATH="$(hosttools_path)"
311
a791ca629d9c Upgrade to toybox-0.0.5 and linux-2.6.25-rc7. Remove use of perl in the kernel
Rob Landley <rob@landley.net>
parents: 301
diff changeset
136
711
20ba34b54140 Rename mini-native.sh to root-filesystem.sh, since that's what it builds.
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parents: 682
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137 # 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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138 # 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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parents: 301
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139 # the cross compiler, but it needs to be on the host system in order to
a791ca629d9c Upgrade to toybox-0.0.5 and linux-2.6.25-rc7. Remove use of perl in the kernel
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140 # 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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parents: 281
diff changeset
141
571
f07d714321fe Fix a couple brown paper bag bugs (oops) and general cleanups.
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142 # 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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parents: 514
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143 # the system image runs. The build doesn't actually use it, we only bother
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parents: 514
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144 # to build it at all here as a convenience for run-from-build.sh.
f07d714321fe Fix a couple brown paper bag bugs (oops) and general cleanups.
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parents: 514
diff changeset
145
318
b3cf2e4b74f0 Patch from Andre Ruiz to fix host-tools rebuild check. (If busybox is already
Rob Landley <rob@landley.net>
parents: 311
diff changeset
146 # Build distcc (if it's not in $PATH)
609
3c30ce98c273 And genext2fs could suffer the same symlink loop problem with RECORD_COMMANDS, so don't symlink. (The point of host-tools.sh is to build what we can from source anyway, linking to anything but the host toolchain defeats the purpose.)
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diff changeset
147 if [ -z "$(which distccd)" ]
277
ffef8c1fe240 Build distcc on host if it's not already installed.
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diff changeset
148 then
571
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diff changeset
149 setupfor distcc &&
624
7641e1038cb6 The new distcc is dumb enough to use -Werror by default. Make it stop.
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150 ./configure --with-included-popt --disable-Werror &&
571
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151 make -j "$CPUS" &&
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152 cp distcc distccd "${STAGE_DIR}"
277
ffef8c1fe240 Build distcc on host if it's not already installed.
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diff changeset
153
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154 cleanup
277
ffef8c1fe240 Build distcc on host if it's not already installed.
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diff changeset
155 fi
ffef8c1fe240 Build distcc on host if it's not already installed.
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parents: 276
diff changeset
156
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
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157 # 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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diff changeset
158 # in system-image.sh.
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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159
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 $CROSS, and system-image.sh was using SYSIMAGE.)
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160 if [ ! -f "${STAGE_DIR}"/genext2fs ]
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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parents: 505
diff changeset
161 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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parents: 608
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162 setupfor genext2fs &&
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parents: 608
diff changeset
163 ./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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parents: 608
diff changeset
164 make -j $CPUS &&
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165 cp genext2fs "${STAGE_DIR}"
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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parents: 505
diff changeset
166
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167 cleanup
508
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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diff changeset
168 fi
909a4921273d Move genext2fs build to host-tools, remove dead code, add comments.
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169
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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170 # Build e2fsprogs.
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171
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
172 # 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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parents: 625
diff changeset
173 # 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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parents: 625
diff changeset
174 # (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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diff changeset
175
1001
c381381fa460 Comment tweak.
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diff changeset
176 # system-image.sh will also use resize2fs from this package if
c381381fa460 Comment tweak.
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177 # SYSIMAGE_TYPE=ext2 to expand the image to SYSIMAGE_HDA_MEGS, because
c381381fa460 Comment tweak.
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diff changeset
178 # genext2fs is unreasonably slow at creating large files. (It has a -b
c381381fa460 Comment tweak.
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diff changeset
179 # option that should do this... if you want your 8-way server with 32 gigs
c381381fa460 Comment tweak.
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180 # of ram to sit there and drool for over 10 minutes to create a 2 gig file
c381381fa460 Comment tweak.
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diff changeset
181 # that's mostly empty. Yeah: not doing that.)
c381381fa460 Comment tweak.
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182
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b9319aa31df8 Always make mke2fs, run-from-build.sh can't make hdb.img otherwise.
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diff changeset
183 if [ ! -f "${STAGE_DIR}"/mke2fs ]
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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parents: 625
diff changeset
184 then
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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diff changeset
185 setupfor e2fsprogs &&
911
b69d7013e16e Fix e2fsprogs on uClibc build.
Rob Landley <rob@landley.net>
parents: 910
diff changeset
186 ./configure --disable-tls --disable-nls --enable-htree &&
642
c92dc77da038 Since gene2fs can't produce large images in a reasonable amount of time, make a 64 meg image and resize it if necessary. (This means the minimum image size is 64 megs, because gene2fs won't run unless you specify a size, but it knows right away if the size you gave it wasn't big enough. I don't understand this either.)
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parents: 625
diff changeset
187 make -j "$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 $CROSS, and system-image.sh was using SYSIMAGE.)
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parents: 796
diff changeset
188 cp misc/{mke2fs,tune2fs} resize/resize2fs "${STAGE_DIR}" &&
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parents: 813
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189 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
diff changeset
190
815
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.
Rob Landley <rob@landley.net>
parents: 813
diff changeset
191 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
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192 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.)
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193
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c3b91b70cc42 Remove USE_ALT option, I have a better idea (upcoming patch).
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194 # Squashfs is the default packaging option.
301
309b574a5059 Redo the $CLEANUP logic to a cleanup function in include.sh (meaning if a
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195
932
61e95d49f520 Have host-tools.sh only make e2fs or squashfs tools if we need them.
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196 if [ ! -f "${STAGE_DIR}"/mksquashfs ] &&
61e95d49f520 Have host-tools.sh only make e2fs or squashfs tools if we need them.
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197 ([ -z "$SYSIMAGE_TYPE" ] || [ "$SYSIMAGE_TYPE" == squashfs ])
648
a72f7f70c003 Now that the 2.6.29 kernel is out with squashfs, add squashfs to host-tools.sh and system-image.sh.
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198 then
1024
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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199 setupfor zlib &&
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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200 ./configure &&
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
Rob Landley <rob@landley.net>
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201 make -j $CPUS &&
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
Rob Landley <rob@landley.net>
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202 mv z*.h libz.a ..
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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203
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
Rob Landley <rob@landley.net>
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204 cleanup
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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205
648
a72f7f70c003 Now that the 2.6.29 kernel is out with squashfs, add squashfs to host-tools.sh and system-image.sh.
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parents: 642
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206 setupfor squashfs &&
a72f7f70c003 Now that the 2.6.29 kernel is out with squashfs, add squashfs to host-tools.sh and system-image.sh.
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207 cd squashfs-tools &&
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918501f802d1 Update squashfs and kernel to current versions.
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208 # Disable xattr support, uClibc doesn't support it and it's deeply pointless
918501f802d1 Update squashfs and kernel to current versions.
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209 # anyway. (I left extended attributes behind with OS/2, thanks.)
918501f802d1 Update squashfs and kernel to current versions.
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210 sed -i "/^XATTR_/d" Makefile &&
1024
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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211 CC="$CC -I ../.. -L ../.." make -j $CPUS &&
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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parents: 1020
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212 cp mksquashfs unsquashfs "${STAGE_DIR}" &&
0fd90ff771dc Build zlib for squashfs, so we don't depend on the host having it.
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parents: 1020
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213 rm ../../{z*.h,libz.a}
648
a72f7f70c003 Now that the 2.6.29 kernel is out with squashfs, add squashfs to host-tools.sh and system-image.sh.
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214
815
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.
Rob Landley <rob@landley.net>
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215 cleanup
648
a72f7f70c003 Now that the 2.6.29 kernel is out with squashfs, add squashfs to host-tools.sh and system-image.sh.
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216 fi
108
b66d638a3844 Build User Mode Linux and have that do the ext2 packaging (for now, anyway).
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217
93
153ba1a0b427 Break out the qemu build (and squashfs) into something easy to comment out,
Rob Landley <rob@landley.net>
parents:
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218 echo -e "\e[32mHost tools build complete.\e[0m"