Dongsu Park 706cc0eb21 dev-util/dwarves: update to 1.19 for CONFIG_DEBUG_INFO_BTF
It is already possible to enable kernel config `CONFIG_DEBUG_INFO_BTF`
using dwarves 1.18 included in the current Flatcar SDK, as long as its
arch is amd64.

However, Kernel build fails in case of arm64, when Kernel version is
>= 5.9 and dwarves version is <= 1.18, like the following:

```
+ pahole -J .tmp_vmlinux.btf
PAHOLE: Error: Found symbol of zero size when encoding btf
(sym: '__kvm_nvhe_arm64_ssbd_callback_required', cu: '../source/arch/arm64/kernel/cpu_errata.c').
PAHOLE: Error: Use '-j' or '--force' to ignore such symbols and force emit the btf.
../source/scripts/link-vmlinux.sh: line 141: 1929102 Segmentation fault
```

The bug was fixed via
https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=2e719cca6672,
("btf_encoder: revamp how per-CPU variables are encoded").
The fix was first included in dwarves
[1.19](https://git.kernel.org/pub/scm/devel/pahole/pahole.git/tag/?h=v1.19).
Thus we need to get dwarves 1.19 included in Flatcar SDK, so that the
next Alpha Kernels could have `CONFIG_DEBUG_INFO_BTF` enabled.
2020-11-30 14:54:16 +01:00
..