annotate simple-root-filesystem.sh @ 1206:99c49806ea6d

Ahem. Change the user of sources/native-root to sources/root-filesystem.
author Rob Landley <rob@landley.net>
date Fri, 13 Aug 2010 17:19:28 -0500
parents 78e786334c5b
children 6a4968ae5ac8
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177
6b4844b708b9 dash->bash.
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1 #!/bin/bash
43
6d16887ec084 Intermediate snapshot. Doesn't work yet.
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2
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2b68517f5b62 Break out simple-root-filesystem.sh and root-filesystem.sh (adding native-compiler.sh output), and use NO_NATIVE_COMPILER to determine which to use. Rename STATIC_CC_HOST to CROSS_HOST_ARCH.
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3 # Build a basic busybox+uClibc root filesystem for a given target.
888
626288dd5cf3 Lots of comments.
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4
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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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5 # Requires a cross-compiler (or simple-cross-compiler) in the $PATH or in
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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6 # the build directory. In theory you can supply your own as long as the
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7 # prefix- name is correct.
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8
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1cf41855bb85 More error checking.
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9 source sources/include.sh || exit 1
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759adf5a0fe9 Refactor so include.sh mostly just sets environment variables. Move read_arch_dir to function and call it explicitly (no more need for $NO_ARCH). Make blank_tempdir a function, called explicitly by stages when needed, with some sanity checks. Insert prerequisite tests to later stages so they can detect failure early and provide an explicit erro rmessage, and have those tests happen before blanking $WORK dir, to preserve debugging info. Make buildall.sh depend on prerequisite tests rather than trying to avoid calling later stages (and thus do flow control from asynchronous context). Add FAIL_QUIET option so buildall.sh doesn't spam the log with the new prerequisite error messages.
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10 read_arch_dir "$1"
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11 check_for_base_arch || exit 0
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7dd3fb4dd333 Minor cleanups and comments, introduce check_prerequisite function.
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12 check_prerequisite "${ARCH}-cc"
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90ab1a1f4db5 Teach build not to rebuild base architecture toolchains. Factor out some common code while there.
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13
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14 # Announce start of stage.
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15
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16 echo "=== Building $STAGE_NAME"
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17
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dc5512d734f0 Actually put MANIFEST into mini-native.
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18 # Determine which directory layout we're using
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19
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20 if [ -z "$ROOT_NODIRS" ]
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d2820523ee06 When doing BUILD_SHORT (without development tools), use / instead of /tools.
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21 then
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22 mkdir -p "$STAGE_DIR"/{tmp,proc,sys,dev,home,mnt} &&
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23 chmod a+rwxt "$STAGE_DIR/tmp" || dienow
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2c6d799f0451 Fix a dangling symlink that confuses root-filesystem.sh, and add some comments.
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24
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25 # Having lots of repeated locations at / and also under /usr is silly, so
2c6d799f0451 Fix a dangling symlink that confuses root-filesystem.sh, and add some comments.
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26 # symlink them together. (The duplication happened back in the 1970's
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27 # when Ken and Dennis ran out of space on their first RK05 disk pack and
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28 # leaked the OS into the disk containing the user home directories. It's
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29 # been mindlessly duplicated ever since.)
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30 for i in bin sbin lib etc
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31 do
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32 mkdir -p "$STAGE_DIR/usr/$i" &&
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33 ln -s "usr/$i" "$STAGE_DIR/$i" || dienow
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34 done
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35
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36 STAGE_DIR="$STAGE_DIR/usr"
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37 else
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38 mkdir -p "$STAGE_DIR/bin" || dienow
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39 fi
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c2b290c1df40 Upgrade BUILD_SHORT to make a small busybox+uClibc system in /usr, with top level symlinks (/bin, /lib, etc) and adjustments to boot script and run-emulator.
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40
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41 # Copy qemu setup script and so on.
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42
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99c49806ea6d Ahem. Change the user of sources/native-root to sources/root-filesystem.
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43 cp -r "${SOURCES}/root-filesystem/." "$STAGE_DIR/" &&
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44 cp "$SRCDIR"/MANIFEST "$STAGE_DIR/src" || dienow
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45
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46 # If user specified different files to put in the root filesystem, add them.
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47 # (This overwrites existing files.)
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48
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49 if [ ! -z "$SIMPLE_ROOT_OVERLAY" ]
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50 then
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51 cd "$TOP"
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52 cp -r "$SIMPLE_ROOT_OVERLAY/." "$STAGE_DIR/" || dienow
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53 fi
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54
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55 # Build busybox and toybox
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56
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57 build_section busybox
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58 cp "$WORK"/config-busybox "$STAGE_DIR"/src || dienow
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00ee362817e1 Cross-compile a native distcc for target.
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60 # Build the world's simplest init program: spawns one task with a controlling
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61 # TTY, waits (reaping zombies) until it exits, then shuts down the system.
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62
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63 ${ARCH}-cc "$SOURCES/toys/oneit.c" -Os $CFLAGS -o "$STAGE_DIR/sbin/oneit" ||
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64 dienow
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65
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66 # Put statically and dynamically linked hello world programs on there for
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67 # test purposes.
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68
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69 "${ARCH}-cc" "${SOURCES}/toys/hello.c" -Os $CFLAGS -o "$STAGE_DIR/bin/hello-dynamic" || dienow
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70
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71 if [ "$BUILD_STATIC" != none ]
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72 then
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73 "${ARCH}-cc" "${SOURCES}/toys/hello.c" -Os $CFLAGS -static -o "$STAGE_DIR/bin/hello-static" || dienow
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74 fi
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75
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76 # Do we need shared libraries?
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77
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78 if [ "$BUILD_STATIC" != all ]
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79 then
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80 echo Copying compiler libraries...
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81 mkdir -p "$STAGE_DIR/lib" || dienow
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82 (path_search \
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83 "$("$ARCH-cc" --print-search-dirs | sed -n 's/^libraries: =*//p')" \
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84 "*.so*" 'cp -H "$DIR/$FILE" "$STAGE_DIR/lib/$FILE"' \
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85 || dienow) | dotprogress
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86
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87 [ -z "$SKIP_STRIP" ] &&
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88 "${ARCH}-strip" --strip-unneeded "$STAGE_DIR"/lib/*.so
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89 fi
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90
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91 # Clean up and package the result
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92
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93 [ -z "$SKIP_STRIP" ] &&
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94 "${ARCH}-strip" "$STAGE_DIR"/{bin/*,sbin/*}
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3fd961e31444 Build a gcc wrapper for _target_, and add a "strip" command to halve the
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95
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96 create_stage_tarball
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036dbe218036 Add BASE_ARCH support, so a hardware architecture can specify a base architecture and just provide a different kernel.
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97
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98 # Color back to normal
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99 echo -e "\e[0mBuild complete"