[OpenWrt-Devel] [PATCH] Allow kernel modules to keep build ID debug symbol.

[Toke Høiland-Jørgensen]

Felix Fietkau <nbd at openwrt.org> writes:

> How is this more useful than simply checking a hash of the kernel
> module in /lib/modules and comparing that with the corresponding file
> on the host?

Because the value in /sys/module/ is from the *loaded* module. So it
catches the case where the module file is updated but not reloaded (was
bitten by this a couple of times).

Also, you can put the module source git hash as the build id, so it can
be referred back to the source, rather than the compiled file.

-Toke
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