Why is self build DISKBOOT.BIN larger than official build?

zell

« on: 17 / July / 2013, 10:47:50 »

Advertisements

Hallo,

I am very curious to ask , why is the self build version "DISKBOOT.BIN" larger than official build?
I use the [CHDK shell v. 3.44] Windows GUI for building the CHDK for SX230HS FW 1.01b, with everything set at default, original source code is "branches_release-1_1-2951".
The resulting DISKBOOT.BIN is 237KB while the official build is only 157KB.

(official build is download from the http://chdk.wikia.com/wiki/Downloads, by the name sx230hs-101b-1.2.0-2951-full_BETA.zip)

And after load them into my camera, both version works. But the self build version takes more camera memory (about 90KB)compared to the official build.

Is this because the official build does not have so much modules as the self compiled version?
Or is there a easy way to disable some modules , for example the GPS ?

Thanks in advance!

Best,

Zell

Logged

whim

2023
A495/590/620/630 ixus70/115/220/230/300/870 S95

Re: Why is self build DISKBOOT.BIN larger than official build?

« Reply #1 on: 17 / July / 2013, 12:09:00 »

Hi !

Try compiling 'trunk' in CHDK-Shell, because that will result in a 1.2.0 version of CHDK. That should get you
a comparable size to the official build you mentioned; depending on the compiler version you select it could
even be slightly smaller (newer compilers optimize slightly better)
The trunk version actually has more of the code in modules, which means that the base CHDK binary is smaller
and memory is only used for modules that are active.

hope that helps,

wim

« Last Edit: 17 / July / 2013, 12:34:08 by whim »

Logged

*Wikia FAQ *GCC Compiler Shell for Windows