MIPS / RT-AC branch for 4 MB devices E1000v1+Netgears - can we safe a few more bytes here ?

[maverick3005]

As, usual, i have snmp included and tuned a lot for the 4 MB devices (like no IPv6, etc.):

f:
@$(MAKE) bin USB="" B=F MULTIWAN=y NO_CIFS=y NO_JFFS=y NO_ZEBRA=y BCMNAT=y OPTIMIZE_SIZE_MORE=y KERN_SIZE_OPT_MORE=y PROXY=y MDNS=y NO_FTP=y NO_HTTPS=y NO_XXTP=y SNMP=y ROAM=y BUILD_DESC="MiniIPv4-SNMP"

By using this (special) config my filesize is now at the absolute maximum of:

3866624 - freshtomato-K26MIPSR2_RTN-NVRAM32K-2026.1-MiniIPv4-SNMP.trx

The options above are the absolute minimum requirements to work with such devices as an AP.
Have we any chance, to save somewhere a few bytes more to have again 1-5 kbyte free for future script changes ?

[pedro0311]

I don't have good news for you: after this commit FreshTomato-Project/freshtomato-arm#236, you can be sure we'll exceed 3866624 bytes - I know this because the r2j target built with it no longer fits the limit.

I don't really know what else can be done to somehow reduce these 4MB images...

[maverick3005]

Yeah, yesterday the latest trunk was exactly 3866624 with this specific configuration. There is anyway a little blockrounding when packing the image. The Only idea i have to remove some not needed options from busybox (so bare basic for small devices...) or recheck again the snmp building. I bet, with an optimized compiler "size" option, remove some module options, or similar i can save the needed room. The mini-snmp version i mentioned for long time, instead the full snmp package looks like not an option - but there exists an 64 bit counter patch for this older openwrt-package. This can save 1 - 1,5 MB and is optimal for just get the counters from any interfaces. Downside is only the interface order will continous changing when an interface gets reloaded/restartet.
Removing the CTF/BCMNAT-Module is another option, because this devices works usualy as bare L2-Bridge/AP - so no active Routing is needed. Eventualy the PROXY-Module i can disable, too.

[maverick3005]

Yeah... for a while this helped:

removed "PROXY=Y" for now (not really needed for an AP....)

New Size: 3837952 and before: 3866624

...The Big SNMP-Package is really a pain :-(