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annotate system-image.sh @ 1807:312b0b928854 draft

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Added tag 1.4.3 for changeset d7921aa5ea60
author Rob Landley <rob@landley.net>
date Thu, 05 Nov 2015 03:36:46 -0600
parents 108f69f2c952
children 92d542aa6ceb
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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d9dae1196ea7 Package ext2 filesystem image using UML.
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2
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7eabfa815c90 Split up system-image.sh into root-image.sh, linux-kernel.sh, and system-image.sh. Rename CROSS_HOST_ARCH to CROSS_COMPILER_HOST.
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3 # Combine a filesystem image and kernel with emulator launch scripts.
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4
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5 # Package a root filesystem directory into a filesystem image file
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6
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1cf41855bb85 More error checking.
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7 source sources/include.sh || exit 1
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8
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9 # Parse sources/targets/$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
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11 load_target "$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 $WORK dir, to preserve debugging info. Make buildall.sh depend on prerequisite tests rather than trying to avoid calling later stages (and thus do flow control from asynchronous context). Add FAIL_QUIET option so buildall.sh doesn't spam the log with the new prerequisite error messages.
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12
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13 # Provide qemu's common command line options between architectures.
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14
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15 qemu_defaults()
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51bcd6de223d Redo plumbing that constructs run-emulator.sh. Group common qemu command
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16 {
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17 echo -n "-nographic -no-reboot -kernel linux"
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18 [ "$SYSIMAGE_TYPE" != "rootfs" ] && echo -n " -initrd rootfs.cpio.gz"
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19 echo -n " -append \"panic=1 console=$CONSOLE HOST=$ARCH \$KERNEL_EXTRA\""
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20 echo -n " \$QEMU_EXTRA"
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21 }
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22
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23 # Write out a script to call the appropriate emulator. We split out the
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24 # filesystem, kernel, and base kernel command line arguments in case you want
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25 # to use an emulator other than qemu, but put the default case in qemu_defaults
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26
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27 cat > "$STAGE_DIR/run-emulator.sh" << EOF &&
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28 #!/bin/bash
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29
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30 # Boot the emulated system to a shell prompt.
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31
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32 ARCH=$ARCH
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33 run_emulator()
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34 {
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35 [ ! -z "\$DEBUG" ] && set -x
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36 $(emulator_command)
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37 }
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38
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39 if [ "\$1" != "--norun" ]
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40 then
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41 run_emulator
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42 fi
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43 EOF
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44 chmod +x "$STAGE_DIR/run-emulator.sh" &&
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45
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46 # Write out development wrapper scripts, substituting INCLUDE lines.
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47
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48 for FILE in dev-environment.sh native-build.sh
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49 do
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50 (export IFS="$(echo -e "\n")"
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51 cat "$SOURCES/toys/$FILE" | while read -r i
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52 do
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53 if [ "${i:0:8}" == "INCLUDE " ]
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54 then
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55 cat "$SOURCES/toys/${i:8}" || dienow
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56 else
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57 # because echo doesn't support --, that's why.
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58 echo "$i" || dienow
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59 fi
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60 done
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61 ) > "$STAGE_DIR/$FILE"
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62
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63 chmod +x "$STAGE_DIR/$FILE" || dienow
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64 done
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65
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66 # Package root-filesystem into cpio file for initramfs
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67
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68 SYSIMAGE_TYPE=cpio image_filesystem "$BUILD/root-filesystem-$ARCH" \
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69 "$STAGE_DIR/rootfs" &&
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70 if [ -d "$BUILD/native-compiler-$ARCH" ]
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71 then
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72 SYSIMAGE_TYPE=squashfs image_filesystem "$BUILD/native-compiler-$ARCH" \
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73 "$STAGE_DIR/toolchain" || dienow
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74 fi
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75
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76 # Build linux kernel for the target
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77
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78 if [ -z "$NO_CLEANUP" ] || [ ! -e "$STAGE_DIR/linux" ]
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79 then
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80 setupfor linux
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81 getconfig linux > mini.conf
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82 [ "$SYSIMAGE_TYPE" == rootfs ] &&
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83 echo -e "CONFIG_INITRAMFS_SOURCE=\"$STAGE_DIR/rootfs.cpio.gz\"\n" \
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84 >> mini.conf
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85 make ARCH=${BOOT_KARCH:-$KARCH} $LINUX_FLAGS KCONFIG_ALLCONFIG=mini.conf \
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86 allnoconfig >/dev/null &&
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87 make -j $CPUS ARCH=${BOOT_KARCH:-$KARCH} $DO_CROSS $LINUX_FLAGS $VERBOSITY &&
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88 cp "$KERNEL_PATH" "$STAGE_DIR/linux"
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89 cleanup
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90 fi
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91 # Tar it up.
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92
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93 ARCH="$ARCH_NAME" create_stage_tarball
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94
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95 announce "Packaging complete"