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'unzip' can uncompress and load raw multiboot images and ELF files. Usage together with the PXE bootloader ease life running the muen hypervisor together with a Genode/x86_64 VM, where the raw boot image is typically quite large. Ref #2358
77 lines
2.1 KiB
Plaintext
77 lines
2.1 KiB
Plaintext
##
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# Load files needed by the scenario via TFTP
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#
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# \param --load-tftp-base-dir base directory of TFTP
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# \param --load-tftp-offset-dir offset directory within TFTP
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# \param --load-tftp-absolute path is absolute, i.e. /base_dir/offset_dir
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# instead of only /offset_dir is used
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#
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source [genode_dir]/tool/run/load.inc
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##
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# The files are loaded implicitly via TFTP to the target machine
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#
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proc run_load { } {
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global load_spawn_id
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set load_spawn_id -1
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return true
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}
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proc load_tftp_base_dir { } { return [get_cmd_arg --load-tftp-base-dir ""] }
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proc load_tftp_offset_dir { } { return [get_cmd_arg --load-tftp-offset-dir ""] }
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proc load_tftp_use_absolute { } { return [get_cmd_switch --load-tftp-absolute] }
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##
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# Install files needed to boot via PXE
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#
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proc install_pxe_bootloader_to_run_dir { } {
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exec mkdir -p [run_dir]/boot
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exec cp [genode_dir]/tool/boot/pulsar [run_dir]/boot/pulsar
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exec chmod a+r [run_dir]/boot/pulsar
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exec cp [genode_dir]/tool/boot/bender [run_dir]/boot/bender
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exec chmod a+r [run_dir]/boot/bender
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exec cp [genode_dir]/tool/boot/unzip [run_dir]/boot/unzip
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exec chmod a+r [run_dir]/boot/unzip
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}
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##
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# Generate pulsar config file used for loading files from TFTP
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#
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proc generate_tftp_config { } {
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set tftp_base_dir [load_tftp_base_dir]
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set tftp_offset_dir [load_tftp_offset_dir]
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if {[string length $tftp_base_dir] > 0 && [string length $tftp_offset_dir] > 0} {
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# if the link target exists as directory this leads to bad behavior
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if {[file exists $tftp_base_dir$tftp_offset_dir] &&
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[string compare [file type $tftp_base_dir$tftp_offset_dir] "directory"] == 0} {
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puts stderr "Error: TFTP symlink target $tftp_base_dir$tftp_offset_dir is a directory"
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exit -1
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}
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exec ln -nfs "[pwd]" "$tftp_base_dir$tftp_offset_dir"
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set tftp_base ""
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if {[load_tftp_use_absolute]} {
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set tftp_base $tftp_base_dir
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}
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set fh [open "$tftp_base_dir$tftp_offset_dir/config-00-00-00-00-00-00" "WRONLY CREAT TRUNC"]
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puts $fh " root $tftp_base$tftp_offset_dir/[run_dir]"
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puts $fh " config config-52-54-00-12-34-56"
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close $fh
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} else {
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puts "Warning, TFTP base directory or TFTP offset directory not set."
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}
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}
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