Executing Event Procedures by name - page 5 - General Discussion and Assistance - CHDK Forum
« previous next »
Pages: 1 2 3 4 [5]   Go Down

Executing Event Procedures by name

  • 43 Replies
  • 28440 Views
*

Offline reyalp

  • ******
  • 14125
Re: Executing Event Procedures by name
« Reply #40 on: 30 / May / 2010, 05:43:33 »
Advertisements
Quote from: Microfunguy on 30 / May / 2010, 05:36:10
With the CHDK disassembly, especially the very first versions, where do the function names come from .. how were they worked-out ?
Many are based on strings in the firmware. I assume the rest were just made up, except in the cases where someone recognized a standard function.
Logged
Don't forget what the H stands for.
*

Offline whoever

  • ****
  • 280
  • IXUS950
Re: Executing Event Procedures by name
« Reply #41 on: 30 / May / 2010, 12:28:35 »
Quote from: Microfunguy on 30 / May / 2010, 05:36:10
With the CHDK disassembly, especially the very first versions, where do the function names come from .. how were they worked-out ?
Quote from: reyalp on 30 / May / 2010, 05:43:33
Many are based on strings in the firmware. I assume the rest were just made up, except in the cases where someone recognized a standard function.
Early on, there was a canon f/w upgrade (A610 or A620, if my memory serves), which contained a table with some 2000 function names and pointers. The first IDA sigs were mostly based on that (rus. forum link). With the introduction of DryOS, the naming in the first (A720) port was probably done mostly by hand, partly based on the known VxWorks functions. The first DryOS IDA sigs were based on that port. Don't know who and how improved those sigs to their current state.
Logged
*

Offline Microfunguy

  • ****
  • 4037
    • StereoData Maker
Re: Executing Event Procedures by name
« Reply #42 on: 08 / June / 2010, 09:53:38 »
Quote from: whoever on 30 / May / 2010, 12:28:35
.
Early on, there was a canon f/w upgrade (A610 or A620, if my memory serves), which contained a table with some 2000 function names and pointers. The first IDA sigs were mostly based on that (rus. forum link).


Too bad that I cannot read Russian, that looks a very interesting forum.
Logged
*

Offline whoever

  • ****
  • 280
  • IXUS950
Re: Executing Event Procedures by name
« Reply #43 on: 09 / June / 2010, 12:24:34 »
Quote from: Microfunguy on 08 / June / 2010, 09:53:38
Too bad that I cannot read Russian, that looks a very interesting forum.
Those parts that are in intelligible Russian are reasonably handled by the Google translator or alike.
Logged
Pages: 1 2 3 4 [5]   Go Up
« previous next »
 

Related Topics


SimplePortal © 2008-2014, SimplePortal