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Title: Unaligned instruction relocation

Abstract

In one embodiment, a computer-implemented method includes receiving source code to be compiled into an executable file for an unaligned instruction set architecture (ISA). Aligned assembled code is generated, by a computer processor. The aligned assembled code complies with an aligned ISA and includes aligned processor code for a processor and aligned accelerator code for an accelerator. A first linking pass is performed on the aligned assembled code, including relocating a first relocation target in the aligned accelerator code that refers to a first object outside the aligned accelerator code. Unaligned assembled code is generated in accordance with the unaligned ISA and includes unaligned accelerator code for the accelerator and unaligned processor code for the processor. A second linking pass is performed on the unaligned assembled code, including relocating a second relocation target outside the unaligned accelerator code that refers to an object in the unaligned accelerator code.

Inventors:
; ; ;
Publication Date:
Research Org.:
International Business Machines Corporation, Armonk, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1417876
Patent Number(s):
9,875,089
Application Number:
14/744,047
Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION (Armonk, NY) OSTI
DOE Contract Number:  
B599858
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jun 19
Country of Publication:
United States
Language:
English
Subject:
97 MATHEMATICS AND COMPUTING

Citation Formats

Bertolli, Carlo, O'Brien, John K., Sallenave, Olivier H., and Sura, Zehra N.. Unaligned instruction relocation. United States: N. p., 2018. Web.
Bertolli, Carlo, O'Brien, John K., Sallenave, Olivier H., & Sura, Zehra N.. Unaligned instruction relocation. United States.
Bertolli, Carlo, O'Brien, John K., Sallenave, Olivier H., and Sura, Zehra N.. Tue . "Unaligned instruction relocation". United States. doi:. https://www.osti.gov/servlets/purl/1417876.
@article{osti_1417876,
title = {Unaligned instruction relocation},
author = {Bertolli, Carlo and O'Brien, John K. and Sallenave, Olivier H. and Sura, Zehra N.},
abstractNote = {In one embodiment, a computer-implemented method includes receiving source code to be compiled into an executable file for an unaligned instruction set architecture (ISA). Aligned assembled code is generated, by a computer processor. The aligned assembled code complies with an aligned ISA and includes aligned processor code for a processor and aligned accelerator code for an accelerator. A first linking pass is performed on the aligned assembled code, including relocating a first relocation target in the aligned accelerator code that refers to a first object outside the aligned accelerator code. Unaligned assembled code is generated in accordance with the unaligned ISA and includes unaligned accelerator code for the accelerator and unaligned processor code for the processor. A second linking pass is performed on the unaligned assembled code, including relocating a second relocation target outside the unaligned accelerator code that refers to an object in the unaligned accelerator code.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 23 00:00:00 EST 2018},
month = {Tue Jan 23 00:00:00 EST 2018}
}

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