PowerPoint Presentation

Size: px

Start display at page:

Download "PowerPoint Presentation"

玮容麻
5 years ago
Views:

1 Yocto Project*: 有效创建定制的嵌入式 Linux* 操作系统 Terence Chiang, Sr. Technical Marketing Engineer, Intel Dongxiao Xu, Software Engineer, Intel SFTS003

2 它不是嵌入式 Linux* 发行版它是您的定制版本. 2

3 议程什么是 Yocto Project*? Poky 构建系统概述 Yocto Project 1.2 版更新演示本课程演示文稿 (PDF) 发布在技术课程目录网站 : intel.com/go/idfsessionsbj 该网址同时打印于会议指南中专题讲座日程页的上方 3

4 议程什么是 Yocto Project*? Poky 构建系统概述 Yocto Project 1.2 版更新演示 4

5 Yocto Project* 概念 Yocto Project* 是一个开源协作项目提供了模板工具和方法来帮助您为采用任意硬件架构的嵌入式产品创建定制的 Linux* 系统专门资源, 面向需要为设备定制 Linux 发行版的系统应用开发人员业经验证和测试并采用通用格式的 BSP 自动创建针对特定设备定制的应用开发 SDK 5

6 Yocto Project* 概念 ( 续 ) 得到了多种架构领域的嵌入式行业领先厂商的大力支持, 其中包括 : 英特尔架构 ARM* IBM* PowerPC* 和 MIPS* 等为自主开发应用的嵌入式开发人员和商业版本供应商提供了一个出色起点支持轻松从概念验证迁移到支持的商业 Linux* 版本, 而不会丢失优化代码或设计工作专有代码可以包含在单独层中的构建结构内, 以确保机密性项目由 Linux 基金会主办 6

7 Yocto Project* 的组成嵌入式工具和发行版构建环境 Eglibc prelink pseudo swabber 以及其它工具支持 ARM* MIPS* PPC 和 x86(32 和 64 位 ) 与 Openembedded 社区共享核心元数据 (OE-core) 简单电子设备物联网 (M2M) 销售终端销售终端网络与存储工业 7

8 Yocto Project* 的组成 ( 续 ) 包含元数据的完整嵌入式 Linux* 操作系统以 6 个月 ( 或者其它时间 ) 为周期发布版本最新 ( 稳定 ) 内核工具链和软件包文档应用开发工具, 包括 Eclipse 插件和模拟器多个供应商提供有 BSP 它不是嵌入式 Linux* 发行版它是您的定制版本 8

9 Yocto Project* 的优势 Linux* 在嵌入式领域日渐受到欢迎非商业和商业嵌入式 Linux 有多个版本开发人员花费大量时间移植或打造构建系统只有很少时间 / 资金可用于开发出色的软件特性行业需要通用构建系统和核心技术行业领先厂商携手组建 Yocto Project*, 具体优势包括 : 减少花费在不能带来价值的工作上的时间 ( 构建系统核心 Linux 组件 ) 提高支持主要芯片特性的能力 Linux 正在嵌入式领域快速增长 9

10 为何它对于您至关重要? 从一个业经验证的软件包集合开始工具链内核和用户空间在不到 1 小时内构建一个嵌入式 Linux* 引导映像出色的应用和系统开发人员工具 Eclipse 性能调试跟踪功率分析灵活的内核开发工具配置和补丁管理可轻松迁移到新硬件支持变更或创建一个新的 config 文件以及重新构建支持轻松发布到商业嵌入式 Linux 市场 Mentor Graphics* Montavista* Timesys* 和 Wind River 10

11 参与组织芯片厂商操作系统供应商嵌入式工具咨询服务用户如果您希望成为一个参与组织, 请联系 Linux* 基金会 ( 参与治理顾问委员会推广和传播 ) 11

12 议程什么是 Yocto Project*? Poky 构建系统概述 Yocto Project 1.2 版更新演示 12

13 开发流程幻灯片和视频 : 13

14 层在 conf/bblayers.conf 中定义 Yocto Project* 构建系统由层组成一个层是一个逻辑方案集合不同层有着不同的优先级 14

15 议程什么是 Yocto Project*? Poky 构建系统概述 Yocto Project 1.2 版更新演示 15

16 全新 Hob* 一个全新设计的图形用户界面, 用于帮助用户构建目标映像配置映像参数添加 / 移除方案和软件包部署映像到目标板卡等支持不同使用模式, 可满足各种用户要求完全构建 : 构建一个不含定制的参考映像使用现有软件包生成映像构建软件包和进行定制 16

17 全新 Hob* 映像配置 17 构建一个不含定制的参考映像

18 全新 Hob* 定制包括的方案数量定制方案 / 软件包 18

19 19 全新 Hob* 构建流程

20 全新 Hob* 映像就绪运行 QEMU 格式的映像 20

21 构建设备 Yocto Project* 可在以下发行版上进行构建 : Ubuntu* Fedora* OpenSUSE* CentOS 以及更多问题 :Yocto Project 能够运行在由其自己构建的映像上吗? 一个运行在 VMWare* 上的自托管映像, 用于支持 Yocto Project 及其 Hob* 可为没有 Linux* 发行版的用户 ( 如 Windows* 用户 ) 带来优势 21

22 22 VMware Player 中的自托管映像

23 全面支持 Multilib * Yocto Project* Multilib* 支持使用不同目标优化或架构格式构建函数库, 然后整合为一个系统映像示例一个系统同时包含 32 位和 64 位函数库用户可以根据特定使用案例的需求, 将映像中的不同二进制对象连接到不同函数库 Yocto 项目 1.2 版的状态 1.1 版支持 Core-image-minimal 和 core-image-sato 1.2 版将为所有方案提供 multilib 功能 23

24 议程什么是 Yocto Project*? Poky 构建系统概述 Yocto Project 1.2 版更新演示 24

25 25 视频演示

26 总结它不是嵌入式 Linux* 发行版它是您的定制版本 Yocto Project* 可支持您定制嵌入式 Linux 操作系统 Yocto Project 为嵌入式应用开发人员奠定了基础同时支持设备和应用开发模型入门非常简单立即下载软件仔细阅读快速开始指南, 设置您的系统以使用 Yocto 项目在 QEMU 或实际硬件上进行构建和测试, 以及开发应用 26

27 加入社区 freenode.irc.net 上的 #yocto 通过公共邮寄列表了解最新进展 : yocto@yoctoproject.org, poky@yoctoproject.orghttp:://lists.yoctoproject.org openembedded-core@lists.openembedded.org Git 代码库 git://git.yoctoproject.org git://git.openembedded.org 报告错误和提出特性请求 : 27

28 行动号召 Yocto Project* 是一个由 Linux 基金会主办的 Linux* 开源项目, 我们强烈建议您或您的组织加入其中, 贡献自己的力量 Yocto 项目适用于任意硬件设备 Yocto 项目在英特尔嵌入式路线图中提供下载 / 试用要求您的 OSV 芯片厂商和板卡制造商通过开发板卡支持包支持 Yocto Project 技术展区 : 使用 Yocto Project* 开源 Hob GUI 来创建嵌入式 Linux 操作系统映像打造个性化 NAS 设备 28

29 Legal Disclaimer INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. A "Mission Critical Application" is any application in which failure of the Intel Product could result, directly or indirectly, in personal injury or death. SHOULD YOU PURCHASE OR USE INTEL'S PRODUCTS FOR ANY SUCH MISSION CRITICAL APPLICATION, YOU SHALL INDEMNIFY AND HOLD INTEL AND ITS SUBSIDIARIES, SUBCONTRACTORS AND AFFILIATES, AND THE DIRECTORS, OFFICERS, AND EMPLOYEES OF EACH, HARMLESS AGAINST ALL CLAIMS COSTS, DAMAGES, AND EXPENSES AND REASONABLE ATTORNEYS' FEES ARISING OUT OF, DIRECTLY OR INDIRECTLY, ANY CLAIM OF PRODUCT LIABILITY, PERSONAL INJURY, OR DEATH ARISING IN ANY WAY OUT OF SUCH MISSION CRITICAL APPLICATION, WHETHER OR NOT INTEL OR ITS SUBCONTRACTOR WAS NEGLIGENT IN THE DESIGN, MANUFACTURE, OR WARNING OF THE INTEL PRODUCT OR ANY OF ITS PARTS. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined". Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The information here is subject to change without notice. Do not finalize a design with this information. The products described in this document may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request. Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. Go to: Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order. Copies of documents which have an order number and are referenced in this document, or other Intel literature, may be obtained by calling , or go to: Intel, Sponsors of Tomorrow and the Intel logo are trademarks of Intel Corporation in the United States and other countries. *Other names and brands may be claimed as the property of others. Copyright 2012 Intel Corporation. 29

30 30 Risk Factors The above statements and any others in this document that refer to plans and expectations for the first quarter, the year and the future are forward-looking statements that involve a number of risks and uncertainties. Words such as anticipates, expects, intends, plans, believes, seeks, estimates, may, will, should and their variations identify forward-looking statements. Statements that refer to or are based on projections, uncertain events or assumptions also identify forward-looking statements. Many factors could affect Intel s actual results, and variances from Intel s current expectations regarding such factors could cause actual results to differ materially from those expressed in these forward-looking statements. Intel presently considers the following to be the important factors that could cause actual results to differ materially from the company s expectations. Demand could be different from Intel's expectations due to factors including changes in business and economic conditions, including supply constraints and other disruptions affecting customers; customer acceptance of Intel s and competitors products; changes in customer order patterns including order cancellations; and changes in the level of inventory at customers. Uncertainty in global economic and financial conditions poses a risk that consumers and businesses may defer purchases in response to negative financial events, which could negatively affect product demand and other related matters. Intel operates in intensely competitive industries that are characterized by a high percentage of costs that are fixed or difficult to reduce in the short term and product demand that is highly variable and difficult to forecast. Revenue and the gross margin percentage are affected by the timing of Intel product introductions and the demand for and market acceptance of Intel's products; actions taken by Intel's competitors, including product offerings and introductions, marketing programs and pricing pressures and Intel s response to such actions; and Intel s ability to respond quickly to technological developments and to incorporate new features into its products. Intel is in the process of transitioning to its next generation of products on 22nm process technology, and there could be execution and timing issues associated with these changes, including products defects and errata and lower than anticipated manufacturing yields. The gross margin percentage could vary significantly from expectations based on capacity utilization; variations in inventory valuation, including variations related to the timing of qualifying products for sale; changes in revenue levels; product mix and pricing; the timing and execution of the manufacturing ramp and associated costs; start-up costs; excess or obsolete inventory; changes in unit costs; defects or disruptions in the supply of materials or resources; product manufacturing quality/yields; and impairments of longlived assets, including manufacturing, assembly/test and intangible assets. The majority of Intel s non-marketable equity investment portfolio balance is concentrated in companies in the flash memory market segment, and declines in this market segment or changes in management s plans with respect to Intel s investments in this market segment could result in significant impairment charges, impacting restructuring charges as well as gains/losses on equity investments and interest and other. Intel's results could be affected by adverse economic, social, political and physical/infrastructure conditions in countries where Intel, its customers or its suppliers operate, including military conflict and other security risks, natural disasters, infrastructure disruptions, health concerns and fluctuations in currency exchange rates. Expenses, particularly certain marketing and compensation expenses, as well as restructuring and asset impairment charges, vary depending on the level of demand for Intel's products and the level of revenue and profits. Intel s results could be affected by the timing of closing of acquisitions and divestitures. Intel's results could be affected by adverse effects associated with product defects and errata (deviations from published specifications), and by litigation or regulatory matters involving intellectual property, stockholder, consumer, antitrust and other issues, such as the litigation and regulatory matters described in Intel's SEC reports. An unfavorable ruling could include monetary damages or an injunction prohibiting us from manufacturing or selling one or more products, precluding particular business practices, impacting Intel s ability to design its products, or requiring other remedies such as compulsory licensing of intellectual property. A detailed discussion of these and other factors that could affect Intel s results is included in Intel s SEC filings, including the report on Form 10-Q for the quarter ended Oct. 1, Rev. 1/19/12

Microsoft Word - Atmel-45136A-Pick-Best-Microcontroller-Strom-Eiland-Flodell_Article_CS

Microsoft Word - Atmel-45136A-Pick-Best-Microcontroller-Strom-Eiland-Flodell_Article_CS 如何为您的下一款设计选出最好的 8 位或 32 位微控制器作者 : Atmel 产品营销高级总监 Oyvind Strom Atmel 产品营销总监 Andreas Eieland Atmel 研发工具部门高级产品营销经理 Henrik Flodell 不久之前, 嵌入式系统还是既昂贵