Created attachment 4077 [details]
diffoscope output,  gawk

This is a weird one, highly reproducible, maybe even 100%.
I noticed this when building core-image-minimal (gawk_4.1.4-r0_i386.deb is built as part of the build).

The .gnu_debuglink contains either:

1. ​gawk-​4.​1.​4
or
2. ​gawk

The .gnu_debuglink checksum is the same in both cases.

1. local.conf
PACKAGE_CLASSES="package_deb"

2. local.conf:
PACKAGE_CLASSES="package_deb"
INHERIT+="rm_work"
TMPDIR="/tmp/ramdisk/gawk"
DEPLOY_DIR="/data/master-master/poky-contrib/gawk/tmp/deploy"

Basically, when I use ramdisk as TMPDIR, I get different result.

I could also reproduce this by building an individual package:

$ bitbake gawk


Build in two different folders, each containing local.conf as per above.
In ramdisk I need to use "rm_work", else I run out of memory, but I don't think that is the culprit.

I also witnessed other similar anomalies with respect to .gnu_debuglink:
e2fsprogs-e2fsck
e2fsprogs-mke2fs