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TW200516497A - Method and apparatus for partitioning code in program code conversion - Google Patents

Method and apparatus for partitioning code in program code conversion

Info

Publication number
TW200516497A
TW200516497A TW093120868A TW93120868A TW200516497A TW 200516497 A TW200516497 A TW 200516497A TW 093120868 A TW093120868 A TW 093120868A TW 93120868 A TW93120868 A TW 93120868A TW 200516497 A TW200516497 A TW 200516497A
Authority
TW
Taiwan
Prior art keywords
code
subject
partitioning technique
self
partitions
Prior art date
Application number
TW093120868A
Other languages
Chinese (zh)
Other versions
TWI362614B (en
Inventor
Alex Brown
Paul Knowles
Geraint North
Original Assignee
Transitive Ltd
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 Transitive Ltd filed Critical Transitive Ltd
Publication of TW200516497A publication Critical patent/TW200516497A/en
Application granted granted Critical
Publication of TWI362614B publication Critical patent/TWI362614B/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
    • G06F9/45516—Runtime code conversion or optimisation
    • 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
    • G06F9/30—Arrangements for executing machine instructions, e.g. instruction decode
    • G06F9/38—Concurrent instruction execution, e.g. pipeline or look ahead
    • G06F9/3802—Instruction prefetching
    • G06F9/3812—Instruction prefetching with instruction modification, e.g. store into instruction stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Executing Special Programs (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

A partitioning technique utilized by a translator to divide the subject code space into regions, referred to hereafter as partitions, where each partition contains a distinct set of basic blocks of subject code and corresponding target code. The partitioning technique divides the translator's representation of subject code and subject code translations into non-overlapping regions of subject memory. In this manner, when the subject program modifies subject code, only those partitions actually affected by the self-modifying code need be discarded and all translations in unaffected partitions can be kept. This partitioning technique is advantageous in limiting the amount of target code that must be retranslated in response to self-modifying code operation. In another process, the partitioning technique allows multithreaded subject programs that also involve self-modifying code to perform code modification in a thread-safe manner.
TW093120868A 2003-07-15 2004-07-13 Method, apparatus and computer program product for generating a translation of subject code into target code TWI362614B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0316532.1A GB0316532D0 (en) 2003-07-15 2003-07-15 Method and apparatus for partitioning code in program code conversion
GB0328121A GB2404044B (en) 2003-07-15 2003-12-04 Method and apparatus for partitioning code in program code conversion

Publications (2)

Publication Number Publication Date
TW200516497A true TW200516497A (en) 2005-05-16
TWI362614B TWI362614B (en) 2012-04-21

Family

ID=27763853

Family Applications (2)

Application Number Title Priority Date Filing Date
TW093120868A TWI362614B (en) 2003-07-15 2004-07-13 Method, apparatus and computer program product for generating a translation of subject code into target code
TW093120866A TWI365406B (en) 2003-07-15 2004-07-13 Shared code caching method and apparatus for program code conversion

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW093120866A TWI365406B (en) 2003-07-15 2004-07-13 Shared code caching method and apparatus for program code conversion

Country Status (5)

Country Link
CN (2) CN100458687C (en)
GB (3) GB0316532D0 (en)
HK (2) HK1068698A1 (en)
IL (1) IL172830A0 (en)
TW (2) TWI362614B (en)

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TWI447649B (en) * 2006-10-02 2014-08-01 Ibm Method and apparatus for administering a process filesystem with respect to program code conversion
TWI571802B (en) * 2014-11-25 2017-02-21 財團法人資訊工業策進會 Variable inference system and method for software program

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CN101458630B (en) * 2008-12-30 2011-07-27 中国科学院软件研究所 Self-modifying code identification method based on hardware emulator
US8069339B2 (en) * 2009-05-20 2011-11-29 Via Technologies, Inc. Microprocessor with microinstruction-specifiable non-architectural condition code flag register
US8578357B2 (en) * 2009-12-21 2013-11-05 Intel Corporation Endian conversion tool
US8479176B2 (en) * 2010-06-14 2013-07-02 Intel Corporation Register mapping techniques for efficient dynamic binary translation
CN102043659A (en) * 2010-12-08 2011-05-04 上海交通大学 Compiling device for eliminating memory access conflict and implementation method thereof
US10146545B2 (en) 2012-03-13 2018-12-04 Nvidia Corporation Translation address cache for a microprocessor
US9880846B2 (en) 2012-04-11 2018-01-30 Nvidia Corporation Improving hit rate of code translation redirection table with replacement strategy based on usage history table of evicted entries
US10241810B2 (en) 2012-05-18 2019-03-26 Nvidia Corporation Instruction-optimizing processor with branch-count table in hardware
US20140189310A1 (en) 2012-12-27 2014-07-03 Nvidia Corporation Fault detection in instruction translations
US10108424B2 (en) 2013-03-14 2018-10-23 Nvidia Corporation Profiling code portions to generate translations
US9684607B2 (en) * 2015-02-25 2017-06-20 Microsoft Technology Licensing, Llc Automatic recovery of application cache warmth
CN104375879B (en) * 2014-11-26 2018-02-09 康烁 Based on the binary translation method and device for performing tree depth
CN105893031B (en) * 2016-03-28 2019-12-24 广州华多网络科技有限公司 Cache operation implementation method, service layer method calling method and device
US20180210734A1 (en) * 2017-01-26 2018-07-26 Alibaba Group Holding Limited Methods and apparatus for processing self-modifying codes
US10613844B2 (en) 2017-11-10 2020-04-07 International Business Machines Corporation Using comments of a program to provide optimizations
CN107902507B (en) * 2017-11-11 2021-05-04 林光琴 Control software field debugging system and debugging method
US11442740B2 (en) * 2020-09-29 2022-09-13 Rockwell Automation Technologies, Inc. Supporting instruction set architecture components across releases
CN112416338A (en) * 2020-11-26 2021-02-26 上海睿成软件有限公司 Code warehouse system based on label
CN117348889B (en) * 2023-12-05 2024-02-02 飞腾信息技术有限公司 Code translation processing method, system, computer system and computer equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI447649B (en) * 2006-10-02 2014-08-01 Ibm Method and apparatus for administering a process filesystem with respect to program code conversion
TWI571802B (en) * 2014-11-25 2017-02-21 財團法人資訊工業策進會 Variable inference system and method for software program

Also Published As

Publication number Publication date
HK1068698A1 (en) 2005-04-29
CN100362475C (en) 2008-01-16
GB0328119D0 (en) 2004-01-07
CN1823322A (en) 2006-08-23
GB0328121D0 (en) 2004-01-07
TWI362614B (en) 2012-04-21
CN100458687C (en) 2009-02-04
CN1836210A (en) 2006-09-20
IL172830A0 (en) 2006-06-11
GB0316532D0 (en) 2003-08-20
GB2404044A (en) 2005-01-19
GB2404043A (en) 2005-01-19
GB2404044B (en) 2006-07-26
TWI365406B (en) 2012-06-01
GB2404043B (en) 2006-04-12
TW200515280A (en) 2005-05-01
HK1068699A1 (en) 2005-04-29

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