mirror of https://github.com/upx/upx.git
61 lines
2.5 KiB
Bash
Executable File
61 lines
2.5 KiB
Bash
Executable File
#! /usr/bin/env bash
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## vim:set ts=4 sw=4 et:
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set -e; set -o pipefail
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argv0=$0; argv0abs="$(readlink -fn "$argv0")"; argv0dir="$(dirname "$argv0abs")"
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# run an interactive shell in the image
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# using a rootless Podman container
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image="$("$argv0dir/10-create-image.sh" --print-image)"
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flags=( --read-only --rm --pull=never )
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flags+=( --cap-drop=all ) # drop all capabilities
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flags+=( --network=none ) # no network needed
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flags+=( -ti -e TERM="$TERM" ) # allocate an interactive pseudo-tty and pass $TERM
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if [[ 1 == 1 ]]; then
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# run as user upx 2000:2000
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flags+=( --user 2000 )
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# map container users 0..999 to subuid-users 1..1000, and map container user 2000 to current host user
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flags+=( --uidmap=0:1:1000 --uidmap=2000:0:1 )
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# map container groups 0..999 to subgid-groups 1..1000, and map container group 2000 to current host group
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flags+=( --gidmap=0:1:1000 --gidmap=2000:0:1 )
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# NOTE: we mount the upx top-level directory read-write under /home/upx/src/upx
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# INFO: SELinux users *may* have to add ":z" to the volume mount flags; check the docs!
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flags+=( -v "${argv0dir}/../../..:/home/upx/src/upx" )
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flags+=( -w /home/upx/src/upx ) # set working directory
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flags+=( --tmpfs /home/upx/.cache:rw,exec ) # mount a writeable tmpfs
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flags+=( --tmpfs /home/upx/.local:rw,exec ) # mount a writeable tmpfs
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else
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# run as user root 0:0
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# ONLY FOR DEBUGGING THE IMAGE
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# map container user/group 0 to current host user/group
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flags+=( --user 0 )
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fi
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if [[ $# == 0 ]]; then
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podman run "${flags[@]}" "$image" bash -l
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else
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podman run "${flags[@]}" "$image" "$@"
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fi
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# now we can cross-compile UPX for Windows:
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# cd /home/upx/src/upx
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# rm -rf ./build/extra/cross-windows-mingw64/release
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# make build/extra/cross-windows-mingw64/release
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# and we can run the clang Static Analyzer (scan-build)
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# cd /home/upx/src/upx
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# rm -rf ./build/extra/scan-build/release
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# make build/extra/scan-build/release
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# and lots of other cross-compilers are installed; see "ls /usr/bin/*g++*"
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# and finally see
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# ./misc/podman/cross-compile-upx-ubuntu/build-all-inside-container.sh
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# after running that script we can do cool things like:
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# cd /home/upx/src/upx/build/cross-compile-upx-ubuntu2204/alpha-linux-gnu/debug
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# qemu-alpha -L /usr/alpha-linux-gnu ./upx --version
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# cd /home/upx/src/upx/build/cross-compile-upx-ubuntu2204/hppa-linux-gnu/debug
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# qemu-hppa -L /usr/hppa-linux-gnu ./upx --version
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# (similar for many other architectures/builds)
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