Fully Reflective Execution Environments

VMs are complex pieces of software that implement programming language semantics in an efficient, portable, and secure way. Unfortunately, mainstream VMs provide applications with few mechanisms to alter execution semantics or memory management at run time. We argue that this limits the evolvability...

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Detalles Bibliográficos
Publicado:	2018
Materias:	Memory management Semantics Shape Software Task analysis Virtual machining Computer software Job analysis Memory architecture Execution environments Execution semantics Programming language semantics Reference architecture Virtual machine
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00985589_v_n_p_Chari http://hdl.handle.net/20.500.12110/paper_00985589_v_n_p_Chari
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00985589_v_n_p_Chari
record_format	dspace
spelling	paper:paper_00985589_v_n_p_Chari2023-06-08T15:09:58Z Fully Reflective Execution Environments Memory management Semantics Shape Software Task analysis Virtual machining Computer software Job analysis Memory architecture Semantics Execution environments Execution semantics Memory management Programming language semantics Reference architecture Shape Task analysis Virtual machining Virtual machine VMs are complex pieces of software that implement programming language semantics in an efficient, portable, and secure way. Unfortunately, mainstream VMs provide applications with few mechanisms to alter execution semantics or memory management at run time. We argue that this limits the evolvability and maintainability of running systems for both, the application domain, e.g., to support unforeseen requirements, and the VM domain, e.g., to modify the organization of objects in memory. This work explores the idea of incorporating reflective capabilities into the VM domain and analyzes its impact in the context of software adaptation tasks. We characterize the notion of a fully reflective VM, a kind of VM that provides means for its own observability and modifiability at run time. This enables programming languages to adapt the underlying VM to changing requirements. We propose a reference architecture for such VMs and present TruffleMATE as a prototype for this architecture. We evaluate the mechanisms TruffleMATE provides to deal with unanticipated dynamic adaptation scenarios for security, optimization, and profiling aspects. In contrast to existing alternatives, we observe that TruffleMATE is able to handle all scenarios, using less than 50 lines of code for each, and without interfering with the application's logic. IEEE 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00985589_v_n_p_Chari http://hdl.handle.net/20.500.12110/paper_00985589_v_n_p_Chari
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Memory management Semantics Shape Software Task analysis Virtual machining Computer software Job analysis Memory architecture Semantics Execution environments Execution semantics Memory management Programming language semantics Reference architecture Shape Task analysis Virtual machining Virtual machine
spellingShingle	Memory management Semantics Shape Software Task analysis Virtual machining Computer software Job analysis Memory architecture Semantics Execution environments Execution semantics Memory management Programming language semantics Reference architecture Shape Task analysis Virtual machining Virtual machine Fully Reflective Execution Environments
topic_facet	Memory management Semantics Shape Software Task analysis Virtual machining Computer software Job analysis Memory architecture Semantics Execution environments Execution semantics Memory management Programming language semantics Reference architecture Shape Task analysis Virtual machining Virtual machine
description	VMs are complex pieces of software that implement programming language semantics in an efficient, portable, and secure way. Unfortunately, mainstream VMs provide applications with few mechanisms to alter execution semantics or memory management at run time. We argue that this limits the evolvability and maintainability of running systems for both, the application domain, e.g., to support unforeseen requirements, and the VM domain, e.g., to modify the organization of objects in memory. This work explores the idea of incorporating reflective capabilities into the VM domain and analyzes its impact in the context of software adaptation tasks. We characterize the notion of a fully reflective VM, a kind of VM that provides means for its own observability and modifiability at run time. This enables programming languages to adapt the underlying VM to changing requirements. We propose a reference architecture for such VMs and present TruffleMATE as a prototype for this architecture. We evaluate the mechanisms TruffleMATE provides to deal with unanticipated dynamic adaptation scenarios for security, optimization, and profiling aspects. In contrast to existing alternatives, we observe that TruffleMATE is able to handle all scenarios, using less than 50 lines of code for each, and without interfering with the application's logic. IEEE
title	Fully Reflective Execution Environments
title_short	Fully Reflective Execution Environments
title_full	Fully Reflective Execution Environments
title_fullStr	Fully Reflective Execution Environments
title_full_unstemmed	Fully Reflective Execution Environments
title_sort	fully reflective execution environments
publishDate	2018
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00985589_v_n_p_Chari http://hdl.handle.net/20.500.12110/paper_00985589_v_n_p_Chari
_version_	1768546153180168192

Fully Reflective Execution Environments

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