New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/25702#issuecomment-711283867

Comment:
I tried removing the `-mgeneral-regs-only` flag and hit another error before linking `vmlinux` when `pahole`  is run:
```cc
  GEN     modules.builtin
  LD      .tmp_vmlinux.btf
  BTF     .btf.vmlinux.bin.o
PAHOLE: Error: Found symbol of zero size when encoding btf (sym: '__kvm_nvhe_arm64_ssbd_callback_required', cu: 'arch/arm64/kernel/cpu_errata.c').
PAHOLE: Error: Use '-j' or '--force' to ignore such symbols and force emit the btf.
scripts/link-vmlinux.sh: line 141: 43837 Segmentation fault      LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${1}
  LD      .tmp_vmlinux.kallsyms1
  KSYM    .tmp_vmlinux.kallsyms1.o
  LD      .tmp_vmlinux.kallsyms2
  KSYM    .tmp_vmlinux.kallsyms2.o
  LD      vmlinux
  BTFIDS  vmlinux
FAILED: load BTF from vmlinux: Unknown error -2make: *** [Makefile:1162: vmlinux] Error 255
=> ERROR: linux5.9-5.9.1_1: do_build: 'make ARCH=$arch ${_version} ${_cross} ${makejobs} ${_args}' exited with 2
=> ERROR:   in do_build() at srcpkgs/linux5.9/template:110
```

Perhaps `${PAHOLE} -J` should be `${PAHOLE} -j`. The manual page `pahole(1)` lists neither of these flags...