wmctrl fails with "cannot execute: required file not found"

HamishB commented 1 month ago

Describe the bug

Hi, I'm trying to run wmctrl on a RPi 3B with Raspian-Bookworm to tell a window to maximize (it's a kiosk display), but it is failing:

 wmctrl 
-bash: /usr/bin/wmctrl: cannot execute: required file not found

Works fine on regular Debian Bookworm amd64 on my desktop computer. I don't have a non-RPi arm Debian system to test it on.

Some websearching indicated that maybe it was a problem with 32/64 bit cross compiling, or a failure to find the dynamic loader.

Debian bug #362068 speaks of 64/32bit changes in wmctrl breaking other stuff.

Nothing jumping out at me in ldd. Other stuff on the RPi all seems to work fine.

$ file `which wmctrl`
/usr/bin/wmctrl: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/arm-linux-gnueabihf/ld-linux.so.3, for GNU/Linux 2.6.26, BuildID[sha1]=c73e024bc544b26de8c591016e5ffa6de17dddb3, stripped

$ ldd `which wmctrl`
        linux-vdso.so.1 (0x7eede000)
        /usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so => /usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so (0x76f20000)
        libX11.so.6 => /lib/arm-linux-gnueabihf/libX11.so.6 (0x76dab000)
        libXmu.so.6 => /lib/arm-linux-gnueabihf/libXmu.so.6 (0x76d80000)
        libglib-2.0.so.0 => /lib/arm-linux-gnueabihf/libglib-2.0.so.0 (0x76c64000)
        libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0x76aeb000)
        /lib/arm-linux-gnueabihf/ld-linux.so.3 => /lib/ld-linux-armhf.so.3 (0x76f3e000)
        libxcb.so.1 => /lib/arm-linux-gnueabihf/libxcb.so.1 (0x76ab0000)
        libXt.so.6 => /lib/arm-linux-gnueabihf/libXt.so.6 (0x76a5d000)
        libXext.so.6 => /lib/arm-linux-gnueabihf/libXext.so.6 (0x76a30000)
        libpcre2-8.so.0 => /lib/arm-linux-gnueabihf/libpcre2-8.so.0 (0x76980000)
        libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0x76939000)
        libXau.so.6 => /lib/arm-linux-gnueabihf/libXau.so.6 (0x76920000)
        libXdmcp.so.6 => /lib/arm-linux-gnueabihf/libXdmcp.so.6 (0x76900000)
        libSM.so.6 => /lib/arm-linux-gnueabihf/libSM.so.6 (0x768e0000)
        libICE.so.6 => /lib/arm-linux-gnueabihf/libICE.so.6 (0x768b0000)
        libbsd.so.0 => /lib/arm-linux-gnueabihf/libbsd.so.0 (0x76880000)
        libuuid.so.1 => /lib/arm-linux-gnueabihf/libuuid.so.1 (0x76a52000)
        libmd.so.0 => /lib/arm-linux-gnueabihf/libmd.so.0 (0x76860000)

$ ls -l /lib/arm-linux-gnueabihf/ld-linux-armhf.so.3
-rwxr-xr-x 1 root root 167464 May  7 19:37 /lib/arm-linux-gnueabihf/ld-linux-armhf.so.3

Steps to reproduce the behaviour

$ sudo apt install wmctrl
$ wmctrl
-bash: /usr/bin/wmctrl: cannot execute: required file not found

Device (s)

Raspberry Pi 3 Mod. B

System

$ cat /etc/rpi-issue 
Raspberry Pi reference 2023-10-10
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, fb56ad562991cf3ae5c96ab50983e1deeaefc7b6, stage4

$ vcgencmd version
Aug 10 2023 15:35:01 
Copyright (c) 2012 Broadcom
version 03dc77429335caee083e22ddc8eec09c07f12a7a (clean) (release) (start)

$ uname -a
Linux seispi 6.1.0-rpi4-rpi-v7 raspberrypi/linux#1 SMP Raspbian 1:6.1.54-1+rpt2 (2023-10-05) armv7l GNU/Linux

Logs

No response

Additional context

Thanks.

popcornmix commented 1 month ago

Moved to bookworm-feedback repo as this issue has nothing to do with linux kernel.

jcapona commented 1 month ago

hey @HamishB - just ran into the same issue.

The binary fails to execute because it needs /lib/arm-linux-gnueabihf/ld-linux-armhf.so.3 (according to ldd) but the file doesn't exist.

$ file /lib/arm-linux-gnueabihf/ld-linux.so.3
/lib/arm-linux-gnueabihf/ld-linux.so.3: cannot open `/lib/arm-linux-gnueabihf/ld-linux.so.3' (No such file or directory)

however, if you check the output of ldd you'll see that this file should be a link to /lib/ld-linux-armhf.so.3 which in my case exists:

$ file /lib/ld-linux-armhf.so.3
/lib/ld-linux-armhf.so.3: symbolic link to arm-linux-gnueabihf/ld-linux-armhf.so.3

so your issue will be fixed if you create the missing file as a link to this library:

$ sudo ln -s /lib/ld-linux-armhf.so.3 /lib/arm-linux-gnueabihf/ld-linux.so.3
$ DISPLAY=:0 wmctrl -l
0x01e00003 -1 pi pcmanfm
0x01c00006 -1 pi panel
0x02a00003  0 pi pi@raspberrypi: ~

Not sure if this is an issue for the RPi OS devs or one for the maintainers of wmctrl since it's compiled using a 'non standard' location of the libraries (or maybe an older version of libc where this file was provided?).

The missing file was provided by libc until bullseye but it disappeared on the bookworm release of the package; check:

HamishB commented 1 month ago

Yeah, adding the missing symlink got it working, thanks!

# cd /usr/lib/arm-linux-gnueabihf
# ln -s ld-linux-armhf.so.3 ld-linux.so.3

lurch commented 3 weeks ago

@XECDesign is currently on holiday, but when he gets back: Is this an "us problem" or an "upstream Raspbian" problem? Or is it a bug in upstream wmctrl?

XECDesign commented 3 weeks ago

It's a Raspbian bug, but the fix is just to rebuild the package, so I've fixed it on our end instead.

lurch commented 1 day ago

I've fixed it on our end instead.

Closing this issue as fixed. Please add additional comments if it's still not working correctly.

raspberrypi / bookworm-feedback