Running app error when executed with /lib/ld-musl-x86_64.so.1.

[GamePlayer-8]

Heyo,

I have a little problem with running compiled a compiled PyInstaller file inside AppImage, built on Alpine Linux.
The error what I'm getting says:

[22992] Cannot open PyInstaller archive from executable (/tmp/.mount_ticloctzbPnm/lib/ld-musl-x86_64.so.1) or external archive (/tmp/.mount_ticloctzbPnm/lib/ld-musl-x86_64.so.1.pkg)

Is there any way to tell PyInstaller to look for a second argument ($1) instead of first one ($0), which is lib/ld-musl-x86_64.so.1?

The AppRun script looks like so:

#!/bin/sh
TICLOCK_RUNPATH="$(dirname "$(readlink -f "${0}")")"
TICLOCK_EXEC="${TICLOCK_RUNPATH}"/usr/bin/ticlock
export LD_LIBRARY_PATH="${TICLOCK_RUNPATH}"/lib:"${TICLOCK_RUNPATH}"/lib64:$LD_LIBRARY_PATH
export LIBRARY_PATH="${TICLOCK_RUNPATH}"/lib:"${TICLOCK_RUNPATH}"/lib64:"${TICLOCK_RUNPATH}"/usr/lib:"${TICLOCK_RUNPATH}"/usr/lib64:$LIBRARY_PATH
export PATH="${TICLOCK_RUNPATH}/usr/bin/:${TICLOCK_RUNPATH}/usr/sbin/:${TICLOCK_RUNPATH}/usr/games/:${TICLOCK_RUNPATH}/bin/:${TICLOCK_RUNPATH}/sbin/${PATH:+:$PATH}"
exec "${TICLOCK_RUNPATH}"/lib/ld-musl-x86_64.so.1 "${TICLOCK_EXEC}" "$@"

where ticlock is a compiled PyInstaller file.

[rokm]

Is there any way to tell PyInstaller to look for a second argument ($1) instead of first one ($0), which is lib/ld-musl-x86_64.so.1?

That's not really what is happening - the argv[0] is in fact the executable passed via ${TICLOCK_EXEC}, as one would expect. But what happens is that PyInstaller's bootloader tries to look up its actual name via /proc/self/exe, and that causes it to end up with the path to ld-musl-x86_64.so.1:

pyinstaller/bootloader/src/pyi_path.c

Lines 297 to 303 in 6fc2cc0

	#if defined(__linux__) || defined(__CYGWIN__)
	name_len = readlink("/proc/self/exe", execfile, PATH_MAX-1); /* Linux, Cygwin */
	#elif defined(__FreeBSD__)
	name_len = readlink("/proc/curproc/file", execfile, PATH_MAX-1); /* FreeBSD */
	#elif defined(__sun)
	name_len = readlink("/proc/self/path/a.out", execfile, PATH_MAX-1); /* Solaris */
	#endif

So if you want to run the executable via ld-musl-x86_64.so.1, you'll need to disable that block in bootloader's code, rebuild the bootloader, and then rebuild your program with updated bootloader.

The /proc/self/exe resolution was re-added in #5232 in response to several issue reports, so I think it will stay there by default. But I'm not opposed to allowing it to be disabled via environment variable (e.g., PYINSTALLER_EXECUTABLE_NAME_LOOKUP=0) to cover scenarios such as yours.

[GamePlayer-8]

So at the moment I need to recompile PyInstaller?

[rokm]

Yes, you need to check out PyInstaller's source, modify and recompile the bootloader, and then install and use the modified PyInstaller version.

[rokm]

This should be fixed in next release (#7556); the bootloader will try to detect if /proc/self/exe points to ld.so, and fall back to manual executable path resolution.

[GamePlayer-8]

Thank you!