December 2005
Intermediate to advanced
432 pages
12h 32m
English
Content preview from Embedded Linux System Design and Development
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290 Embedded Linux System Design and Development
The Valgrind architecture can be decomposed into two layers: the core
and the skins. The core is the x86 simulator that translates all the executable
code into its own opcode. The translated opcode is then instrumented and
executed on the real CPU. The instrumentation depends on the skin type
chosen. The architecture of Valgrind is very modular allowing a new skin to
be plugged easily with the core.
We focus our attention on the memory checker skin, memcheck. This is
the default skin used by Valgrind (any other skin has to be specifically invoked
using the command line argument
--skin). Memcheck works by associating
every byte of working memory with two values: the V (valid value) bit and
the A (valid address) ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.