The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 02, 2022

Filed:

Aug. 31, 2020
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventors:

Darek Josip Mihocka, Mercer Island, WA (US);

Clarence Siu Yeen Dang, Newcastle, WA (US);

Pedro Miguel Sequeira De Justo Teixeira, Kirkland, WA (US);

Pavlo Lebedynskiy, Sammamish, WA (US);

James David Cleary, Seattle, WA (US);

Jon Robert Berry, Woodinville, WA (US);

YongKang Zhu, Redmond, WA (US);

Tiansheng Tan, Redmond, WA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 9/30174 (2013.01); G06F 9/455 (2013.01); G06F 9/4552 (2013.01); G06F 9/45516 (2013.01);
Abstract

Using a common reference address when processing calls among a native ABI and a foreign ABI. Based on caller calling using a reference address, a lookup structure is used to determine whether the reference address is within a memory range storing native code (and that the callee is native) or a memory range not storing native code (and that the callee is foreign). Execution of the callee is initiated based on one of (i) when the caller is native and when the callee is foreign, calling the callee using the reference address within an emulator; (ii) when the caller is foreign and the callee is native, calling an entry thunk; (iii) when the caller is native and the callee is foreign, calling an exit thunk; or (iv) when the caller is native and the callee is native, directly calling the callee using the reference address.


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