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No longer works on recent kernels because kallsyms_lookup_name is unexported. #1

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Hello1024 opened this issue Mar 3, 2021 · 0 comments · May be fixed by #2
Open

No longer works on recent kernels because kallsyms_lookup_name is unexported. #1

Hello1024 opened this issue Mar 3, 2021 · 0 comments · May be fixed by #2

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@Hello1024
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# make
make -C /lib/modules/5.8.0-43-generic/build M=/home/foo/devmem-full-access modules
make[1]: Entering directory '/usr/src/linux-headers-5.8.0-43-generic'
  MODPOST /home/foo/devmem-full-access/Module.symvers
ERROR: modpost: "kallsyms_lookup_name" [/home/foo/devmem-full-access/devmem-full-access.ko] undefined!
make[2]: *** [scripts/Makefile.modpost:111: /home/foo/devmem-full-access/Module.symvers] Error 1
make[2]: *** Deleting file '/home/foo/devmem-full-access/Module.symvers'
make[1]: *** [Makefile:1693: modules] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-5.8.0-43-generic'
make: *** [Makefile:12: all] Error 2

Looks like this code will need to be migrated to the livepatch API.
@Hello1024 Hello1024 linked a pull request Mar 3, 2021 that will close this issue
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Update module to use livepatch Hello1024/devmem-full-access
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@Hello1024