1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
\input{configpres}
\title{YOCTO - Intro}
\maketitle
\begin{frame}
\frametitle{Yocto is \dots}
\begin{itemize}
\item an Ecosystem (not a single open-source project)
\item a collection of embedded projects and tooling
\item a place for Industry to publish BSPs
\item NOT an embedded Linux distribution
\end{itemize}
\dots used to build a Linux system from source in about an hour \footnote{quad i7, 16GB
RAM, fast disks, needed}
\end{frame}
\begin{frame}
\frametitle{the Yocto project family}
\begin{description}
\item[Poky] reference build system
\item[BitBake] build-engine
\item[Hob] graphical user interface for BitBake
\item[OpenEmbedded Core] shared base layer of recipes and classes
\item[ADT] development environment for user-space applications
\item[Eclipse IDE Plugin] integration of ADT into the Eclipse IDE
\item[EGLIBC] embedded variant of the GNU C library
\item[Matchbox] X-Windows-based open source graphical UI for embedded devices
\end{description}
\end{frame}
\begin{frame}
\frametitle{Poky is \dots}
the Yocto key project; a reference distribution consisting of
\begin{itemize}
\item a build system for Linux (openembedded + customized busybox,
psplash, alsa-state, formfactor, uclibc and tiny-init)
\item Yocto Linux kernel
\item build recipes for common open-source software
\item toolchains for several architectures
\item documentation
\end{itemize}
release cycle: 6 months
\end{frame}
\begin{frame}
\frametitle{statistics}
\begin{description}
\item[Generated] 2014-08-19 18:16:11 (in 228 seconds)
\item[Generator] GitStats (version 2013.12.07)
\item[Report Period] 2005-08-31 12:45:47 to 2014-08-18 16:21:54
\item[Age] 3275 days, 2498 active days (76.27%)
\item[Total Files] 4775
\item[Total Lines of Code] 743995 (15398000 added, 14654005 removed)
\item[Total Commits] 30841
(average 12.3 commits per active day, 9.4 per all days)
\item[Authors] 475
\end{description}
\end{frame}
\begin{frame}[fragile]
\frametitle{who made Yocto?}
commits by domain
\begin{verbatim}
intel.com 9201 (29.83%)
linux.intel.com 5882 (19.07%)
openedhand.com 5423 (17.58%)
windriver.com 2827 (9.17%)
linuxfoundation.org 2625 (8.51%)
gmail.com 1904 (6.17%)
mentor.com 626 (2.03%)
ossystems.com.br 206 (0.67%)
dominion.thruhere.net 187 (0.61%)
freescale.com 159 (0.52%)
\end{verbatim}
\end{frame}
\begin{frame}
\frametitle{OpenEmbedded}
\begin{itemize}
\item open-source project providing a cross-build framework for embedded Linux
\item recipes for toolchain, bootloader, kernel, lttng, user-space packages
\end{itemize}
\end{frame}
\begin{frame}
\frametitle{Yocto pincipals}
\begin{itemize}
\item validated collection of software (toolchain, kernel, user-space)
\item customize blueprints for your own needs
\item distinguishing between app and system developers
\item layer model for modular development, reuse, and customizations
\end{itemize}
\end{frame}
\begin{frame}
\frametitle{cross-build vs. binary distribution}
\begin{itemize}
\item men-power needed for building an own distribution?
\item security tracking?
\item optimizations needed on all binaries?
\item cross-compile wanted?
\end{itemize}
\end{frame}
\input{tailpres}
|
