April 2015
Intermediate to advanced
300 pages
8h 51m
English
Content preview from Power and Performance
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Chapter 12
Toolchain Primer
Abstract
This chapter covers the fundamentals of the various toolchains and ABIs for Linux. This provides developers with the necessary information to understand concepts such as PIC, calling conventions, alignment, and so on. Additionally, techniques are provided for helping the compiler optimize code better, for how to dispatch multiple optimized implementations of code based on the supported CPU features, and for how to leverage x86 assembly.
Keywords
ELF
x86
x86-64
PIC
CPU dispatch
Function dispatch
IFUNC
gcc
as
ld
icc
clang
llvm
nasm
yasm
at&t syntax
CPUID
C99
C11
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.