Author Archives: daveti

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About daveti

Interested in kernel hacking, compilers, machine learning and guitars.

7 Lovely Logics – shared by my friend Michelle

Posted on March 8, 2012 by daveti
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RedHat 6 – Porting code to RH6

Posted on February 19, 2012 by daveti

We are moving our product’s OS from RedHat 5 to 6, as well as new version of ‘gcc’ (4.X) along with RH6.  To port the existing code to RH6 with new compiler, there might be a lot of things we … Continue reading →

Posted in OS, Programming, Stuff about Compiler | Tagged , , , | 1 Comment

shellcode 1 – comments for the doc “The Basics of Shellcoding”

Posted on February 10, 2012 by daveti

Recently been doing some stuffs on Shellcode. After a while wandering in the net, I found the doc “The Basics of Shellcoding” by Angelo Rosiello may be the very concise introduction to start with shellcoding, especially for the newbie like … Continue reading →

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side effect of “++” in C – compiler implemenation with assembly

Posted on February 2, 2012 by daveti

This post shows a common known side effect of “++” operator in C programming because of different compiler implementation. Assembly code from PowerPC and x86 with gcc is provide to show the key difference and the reason why for this … Continue reading →

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Intel x86 32-bit assembly – function call & stack frame

Posted on January 27, 2012 by daveti

This post is originally written for a basic view on function call and stack frame in Intel x86 32-bit assembly code. EBP and ESP are the focus. A stack layout pic with dynamic register changes is also down there. May … Continue reading →

Posted in Programming, Stuff about Compiler | Tagged , , , , , , | 1 Comment

Print unsigned long long – SegV in C

Posted on January 22, 2012 by daveti

This post shows a potential bug in printing unsigned long long, which cost David, Leo and me a few days for debugging. One product got segv on cPSB lab – a platform based on MontaVista Linux and PowerPC CPU. Back … Continue reading →

Posted in Programming, Static Code Analysis, Stuff about Compiler | Tagged , , , | 3 Comments

Let’s play guitar – video with the Band:)

Posted on December 30, 2011 by daveti

The Band (Alcatel-Lucent R&D Qingdao Band) recently got some shows both for wireless and wireline departments. Below comes a pic of me and 2 videos of the band. Enjoy:) (pic took by Maggie Mai for the 2nd Wireless Pace Day, … Continue reading →

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Uninit structure member – Uninit checking and static code analysis

Posted on December 26, 2011 by daveti

A recent software bug caused a serious data damage in our customer’s side, which is using an uninit sturcture member. This post gives a practical comparison between kinds of static code analysis tools for this specific bug among popular commerical … Continue reading →

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kill all – killing all the process of certain user under Solaris

Posted on December 6, 2011 by daveti

This is a quick post on kill based on the trial and discussion when David, Daniel and myself were trying to kill all the abnormal process of Daniel under a Solaris 8 Ultra-80 server. The most tough thing was the … Continue reading →

Posted in Programming | Tagged , , | 1 Comment

Guitar – My new personal designed Telecaster “daveti”, Orange and Song “Near Side”

Posted on October 28, 2011 by daveti

Aha, after almost 1 month’s wating, I’ve got my ‘Green’ now – a personal designed Telecaster guitar with my personal logo “daveti” on the head. ‘Green’ right now is my 3rd guitar after ‘White”(Squier Strat) and ‘Black'(Jackson). The other new … Continue reading →

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