Headers 4.19.75-v7l+ (Buster on PI3B+) and modules compile

[dobova86]

I'm facing a new problem recompiling modules for qmi_wwan drivers on 4.19.75 new kernel.

Code: Select all

rm -rf *~ .tmp_versions modules.order Module.symvers
find . -type f -name *~ -o -name *.o -o -name *.ko -o -name *.cmd -o -name *.mod.c -o -name *.ur-safe |  xargs rm -rf
make -C /lib/modules/4.19.75-v7l+/build M=/home/pi/files/drivers modules
make[1]: ingresso nella directory "/usr/src/linux-headers-4.19.75-v7l+"
  CC [M]  /home/pi/files/drivers/./drivers/usb/serial/usb_wwan.o
[b]/bin/sh: 1: scripts/basic/fixdep: Exec format error[/b]
make[2]: *** [scripts/Makefile.build:310: /home/pi/files/drivers/./drivers/usb/serial/usb_wwan.o] Error 2
make[1]: *** [Makefile:1519: _module_/home/pi/files/drivers] Error 2
make[1]: uscita dalla directory "/usr/src/linux-headers-4.19.75-v7l+"
make: *** [Makefile:10: modules] Error 2

I have manually compiled fixdep, and than it worked again but then stops at genksyms with same error

fixdep create problems, and also genksyms .. What's changes with this new version headers? How can fix this?

Dome

[dobova86]

For what I see, many scripts in the linux-headers-4.19.75-v7l+ dir don’t work. I needed to make recompile all scripts .. they are probably 64bit version

[DougieLawson]

75+ is 32-bit Arm6 (1B, Zero)
75-v7+ is 32-bit Arm7 (2B, 3B, 3A+, 3B+)
75-v7l+ is BCM2711 32-bit (4B)
75-v8+ is 64-bit Arm8 (3B, 3A+, later 2Bs, 3B+ or 4B)

[ShiftPlusOne]

https://github.com/raspberrypi/linux/issues/3279

[dobova86]

https://github.com/raspberrypi/linux/issues/3279

Yes I suspected they were 64bit exec in erroneus directory.

Anyway, my P3B+ is using kernel "v7l+" and not "v7+". New kernel v8 seems to be the default one with 4.19.75 also on PI3B+ .. is it true?
I had to force, in config.txt, the kernelv7l.img (i need 32bit kernel)