Main motivation for this commit is the introduction of
`-ffile-prefix-map=` which alows reproducible build path.
Compile tested on Linux and macOS without errors on the following
targets:
* ath79
* imx6
* brcm2708
* brcm63xx
* ixp4xx
* ramips
* sunxi
* x86
Thanks to Andre for the iremap fixup.
Ref: https://reproducible-builds.org/docs/build-path/
Tested-by: Andre Heider <a.heider@gmail.com>
Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Paul Spooren <mail@aparcar.org>
[refactored into separate commit]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
d509463816