WO2010121770A3 - Execution process for a programme by a virtual machine, virtual machine code and associated device - Google Patents

Execution process for a programme by a virtual machine, virtual machine code and associated device Download PDF

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Publication number
WO2010121770A3
WO2010121770A3 PCT/EP2010/002381 EP2010002381W WO2010121770A3 WO 2010121770 A3 WO2010121770 A3 WO 2010121770A3 EP 2010002381 W EP2010002381 W EP 2010002381W WO 2010121770 A3 WO2010121770 A3 WO 2010121770A3
Authority
WO
WIPO (PCT)
Prior art keywords
instruction
virtual machine
virtual
execution
loop
Prior art date
Application number
PCT/EP2010/002381
Other languages
French (fr)
Other versions
WO2010121770A2 (en
Inventor
Cedric Mesnil
Dominique Bouveron
Original Assignee
Trusted Logic
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 Trusted Logic filed Critical Trusted Logic
Publication of WO2010121770A2 publication Critical patent/WO2010121770A2/en
Publication of WO2010121770A3 publication Critical patent/WO2010121770A3/en

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
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/656—Updates while running
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G06F8/66—Updates of program code stored in read-only memory [ROM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Executing Machine-Instructions (AREA)
  • Devices For Executing Special Programs (AREA)
  • Debugging And Monitoring (AREA)

Abstract

The invention concerns an execution process for a program comprising virtual instructions, executable by a virtual machine, each virtual instruction representing an action. The process comprises: for at least one virtual instruction of the program, called a corrected virtual instruction, beginning to execute a loop of instructions of virtual machine code (112) called an interpretation loop. Complete execution of the interpretation loop enables: determination of the action represented by the current virtual instruction; selection and execution of a translation of the action, comprising at least one real instruction of virtual machine code (112), and being associated with the determined action; selection of a subsequent virtual instruction on which the interpretation loop is intended to be executed; during execution of the interpretation loop for the corrected instruction, before restarting execution of the interpretation loop for a new instruction, searching in a lookup table for a patch associated with the corrected instruction, and commanding execution of the patch.
PCT/EP2010/002381 2009-04-20 2010-04-19 Execution process for a programme by a virtual machine, virtual machine code and associated device WO2010121770A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0952568 2009-04-20
FR0952568 2009-04-20

Publications (2)

Publication Number Publication Date
WO2010121770A2 WO2010121770A2 (en) 2010-10-28
WO2010121770A3 true WO2010121770A3 (en) 2010-12-16

Family

ID=41258437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/002381 WO2010121770A2 (en) 2009-04-20 2010-04-19 Execution process for a programme by a virtual machine, virtual machine code and associated device

Country Status (1)

Country Link
WO (1) WO2010121770A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660721A1 (en) * 2012-05-03 2013-11-06 Gemalto SA Method of loading an application in a secure device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0955578A1 (en) * 1998-05-04 1999-11-10 International Business Machines Corporation Method and device for carrying out a function assigned to an instruction code
US6256752B1 (en) * 1998-07-24 2001-07-03 International Business Machines Corporation Method and apparatus for dynamic swappable bytecode loop in java virtual machines
WO2005069136A1 (en) * 2004-01-20 2005-07-28 Giesecke & Devrient Gmbh The running of a program by a virtual machine
EP1818817A2 (en) * 2006-01-17 2007-08-15 Giesecke & Devrient GmbH Creation of patches via a cache

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0955578A1 (en) * 1998-05-04 1999-11-10 International Business Machines Corporation Method and device for carrying out a function assigned to an instruction code
US6256752B1 (en) * 1998-07-24 2001-07-03 International Business Machines Corporation Method and apparatus for dynamic swappable bytecode loop in java virtual machines
WO2005069136A1 (en) * 2004-01-20 2005-07-28 Giesecke & Devrient Gmbh The running of a program by a virtual machine
EP1818817A2 (en) * 2006-01-17 2007-08-15 Giesecke & Devrient GmbH Creation of patches via a cache

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BEATTY A ET AL: "An optimized Java interpreter for connected devices and embedded systems", PROCEEDINGS OF THE ACM SYMPOSIUM ON APPLIED COMPUTING 2003 ASSOCIATION FOR COMPUTING MACHINERY US, 2003, pages 692 - 697, XP002554848 *

Also Published As

Publication number Publication date
WO2010121770A2 (en) 2010-10-28

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