CA2267477A1 - Packaging memory image files - Google Patents

Packaging memory image files Download PDF

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Publication number
CA2267477A1
CA2267477A1 CA002267477A CA2267477A CA2267477A1 CA 2267477 A1 CA2267477 A1 CA 2267477A1 CA 002267477 A CA002267477 A CA 002267477A CA 2267477 A CA2267477 A CA 2267477A CA 2267477 A1 CA2267477 A1 CA 2267477A1
Authority
CA
Canada
Prior art keywords
ram
data
rom
image files
memory image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002267477A
Other languages
French (fr)
Other versions
CA2267477C (en
Inventor
Peter Wiebe Burka
Graham Chapman
John Duimovich
Trent Gray-Donald
Graeme Johnson
Andrew Low
Patrick James Mueller
Ryan Andrew Sciampacone
Peter Duncan Shipton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IBM Canada Ltd
Original Assignee
OBJECT TECHNOLOGY INTERNATIONAL Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OBJECT TECHNOLOGY INTERNATIONAL Inc filed Critical OBJECT TECHNOLOGY INTERNATIONAL Inc
Priority to CA002267477A priority Critical patent/CA2267477C/en
Priority to US09/374,154 priority patent/US6446254B1/en
Publication of CA2267477A1 publication Critical patent/CA2267477A1/en
Application granted granted Critical
Publication of CA2267477C publication Critical patent/CA2267477C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G06F9/44568—Immediately runnable code
    • G06F9/44573—Execute-in-place [XIP]

Abstract

In typical Java and other interpreted programming language environments, the code is stored in ROM in a semi-processed state, .class files containing byte codes. When the device is turned on, a virtual machine resolves references and links the .class file in RAM to permit desired applications to be run. In the invention, the .class files are further pre-processed to select the data which will not change or require updating. This data is packaged into memory image files containing internal data pre-linking this data. The memory image files are stored in ROM and are accessible from ROM by the virtual machine at runtime. Only elements that will be updated, such as the objects themselves, must be instantiated in RAM at runtime. This reduces the amount of RAM needed to run the application. In an environment with memory constraints, the reduction in RAM
requirements permits more RAM to be made available for application use.
CA002267477A 1999-03-30 1999-03-30 Packaging memory image files Expired - Lifetime CA2267477C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002267477A CA2267477C (en) 1999-03-30 1999-03-30 Packaging memory image files
US09/374,154 US6446254B1 (en) 1999-03-30 1999-08-13 Packaging memory image files

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002267477A CA2267477C (en) 1999-03-30 1999-03-30 Packaging memory image files

Publications (2)

Publication Number Publication Date
CA2267477A1 true CA2267477A1 (en) 2000-09-30
CA2267477C CA2267477C (en) 2003-10-14

Family

ID=4163414

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002267477A Expired - Lifetime CA2267477C (en) 1999-03-30 1999-03-30 Packaging memory image files

Country Status (2)

Country Link
US (1) US6446254B1 (en)
CA (1) CA2267477C (en)

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US7096466B2 (en) 2001-03-26 2006-08-22 Sun Microsystems, Inc. Loading attribute for partial loading of class files into virtual machines
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US7543288B2 (en) * 2001-03-27 2009-06-02 Sun Microsystems, Inc. Reduced instruction set for Java virtual machines
US6525613B2 (en) * 2001-05-25 2003-02-25 Infineon Technologies Ag Efficient current feedback buffer
US6964033B2 (en) * 2001-06-20 2005-11-08 Sun Microsystems, Inc. Object band customization of Java runtime environments
US7117489B2 (en) * 2001-06-20 2006-10-03 Sun Microsystems, Inc. Optional attribute generator for customized Java programming environments
US7228533B2 (en) * 2001-08-24 2007-06-05 Sun Microsystems, Inc. Frameworks for generation of Java macro instructions for performing programming loops
US7058934B2 (en) * 2001-08-24 2006-06-06 Sun Microsystems, Inc. Frameworks for generation of Java macro instructions for instantiating Java objects
US6988261B2 (en) * 2001-08-24 2006-01-17 Sun Microsystems, Inc. Frameworks for generation of Java macro instructions in Java computing environments
US7039904B2 (en) 2001-08-24 2006-05-02 Sun Microsystems, Inc. Frameworks for generation of Java macro instructions for storing values into local variables
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US6944846B2 (en) * 2001-12-14 2005-09-13 Hewlett-Packard Development Company, L.P. Algorithm for localization of a JAVA application using reflection API and a custom class loader
US7051324B2 (en) * 2003-01-16 2006-05-23 International Business Machines Corporation Externalized classloader information for application servers
FR2883390A1 (en) * 2005-03-15 2006-09-22 Gemplus Sa MANAGING MEMORY DATA STRUCTURE PLACEMENT BASED ON DEDICATED PROGRAMMING LANGUAGE
WO2008002419A2 (en) * 2006-06-19 2008-01-03 Xensource, Inc. Open virtual appliance
US7870411B2 (en) * 2006-07-17 2011-01-11 Xensource, Inc. Tracking current time on multiprocessor hosts and virtual machines
US8539551B2 (en) * 2007-12-20 2013-09-17 Fujitsu Limited Trusted virtual machine as a client
US9740500B2 (en) * 2012-08-30 2017-08-22 Microsoft Technology Licensing, Llc Layout system for operating systems using BPRAM
US9952879B2 (en) * 2012-08-30 2018-04-24 Microsoft Technology Licensing, Llc Application pre-layout in byte-addressable persistent random access memory
US10025602B2 (en) * 2014-06-03 2018-07-17 Mentor Graphics Corporation Prelinked embedding
CN106354536A (en) * 2016-08-31 2017-01-25 北京奇虎科技有限公司 Method and device of loading ELF file of Linux system in Windows system
US10747512B2 (en) * 2017-01-06 2020-08-18 International Business Machines Corporation Partial object instantiation for object oriented applications
FR3074317B1 (en) 2017-11-27 2019-11-22 Idemia Identity & Security France METHOD FOR ACCESSING A FLASH TYPE NON-VOLATILE MEMORY ZONE OF A SECURE ELEMENT, SUCH AS A CHIP CARD
US11221835B2 (en) 2020-02-10 2022-01-11 International Business Machines Corporation Determining when to perform and performing runtime binary slimming
CN111427856B (en) * 2020-03-11 2023-06-02 北京明略软件系统有限公司 Java data processing method and device
CN112131000B (en) * 2020-09-23 2024-02-06 腾讯科技（深圳）有限公司 Memory release method and device for plug-in application program
CN112667285B (en) * 2021-01-25 2023-11-03 Vidaa(荷兰)国际控股有限公司 Application upgrading method, display device and server

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073401A2 (en) * 2001-03-07 2002-09-19 Motorola, Inc., A Corporation Of The State Of Delaware Method and device for creating and using pre-internalized program files
WO2002073401A3 (en) * 2001-03-07 2004-04-01 Motorola Inc Method and device for creating and using pre-internalized program files
CN1306402C (en) * 2001-03-07 2007-03-21 飞思卡尔半导体公司 Method and device for creating and using pre-internalized program files
US8099729B2 (en) 2001-03-07 2012-01-17 Freescale Semiconductor, Inc. Method and device for creating and using pre-internalized program files
WO2002097619A2 (en) * 2001-05-30 2002-12-05 Research In Motion Limited A mobile communications device application processing system
WO2002097619A3 (en) * 2001-05-30 2004-10-28 Research In Motion Ltd A mobile communications device application processing system
CN100337198C (en) * 2001-05-30 2007-09-12 捷讯研究有限公司 A mobile communications device application processing system
US7493616B2 (en) 2001-05-30 2009-02-17 Research In Motion Limited Mobile communication device application processing system
EP2244185A1 (en) 2001-05-30 2010-10-27 Research In Motion Limited A mobile communications device application processing system
US8627316B2 (en) 2001-05-30 2014-01-07 Blackberry Limited Mobile communications device application processing system

Also Published As

Publication number Publication date
CA2267477C (en) 2003-10-14
US6446254B1 (en) 2002-09-03

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Effective date: 20190401