Contributions to the GNU Compiler Collection

Edelsohn, David; Gellerich, Wolfgang; Hagog, Mostafa; Naishlos, Dorit; Namolaru, Mircea; Pasch, E.; Penner, H.; Weigand, Ulrich; Zaks, Ayal

doi:10.1147/sj.442.0259

Cited by 4 publications

(6 citation statements)

References 15 publications

(9 reference statements)

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“…First, the people input into an open source system can be provided by a proprietary system (Figure 4) or another open source system. In the case of a proprietary system, this input can come in the form of a formal commitment, for example, when a commercial company participates in an open source project (O'Mahony, 2007;Dahlander, 2007;Dahlander and Wallin, 2006;Lerner et al, 2006;Mustonen, 2005;Edelsohn et al, 2005;Grand et al, 2004;de Joode, 2004), or it can be informal, such as when a commercial developer spends part of his or her paid work time contributing to an open source project (Lakhani and Wolf, 2005). For example, Oracle Corporation is involved either directly or indirectly in more than 700 open source community projects.…”

Section: A Holistic Framework For Open Source Researchmentioning

confidence: 99%

“…While this category is inextricably linked to overall quality, it only covers certain aspects of quality such as maintainability. Tsantalis and Chatzigeorgiou (2009), Haefliger et al (2008), Koch (2008), Mathieu (2008), Aberdour (2007), Ajila and , Falzone et al (2007), , Koru and Liu (2007), Obrenovic andGasevic (2007), Zhu et al (2007), Baldwin andClark (2006), MacCormack et al (2006), Gosain (2006), Turnu et al (2006), Yu et al (2006), Chan et al (2005), Edelsohn et al (2005), Koru and Tian (2005), Tsantalis et.al. (2005), Uchida et al (2005), Angster (2004), Koch (2004), Lussier (2004), Madanmohan and De (2004), Samoladas et al (2004), Ciffolilli (2003), Bollinger et al (1999.…”

Section: Software Development -Oss Code Efficienciesmentioning

confidence: 99%

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A Comprehensive Review and Synthesis of Open Source Research

Aksulu¹,

Wade²

2010

JAIS

131

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The open source movement has grown steadily and matured in recent years, and this growth has been mirrored by a rise in open source related research. The objective of this paper is to pause and reflect on the state of the field. We start by conducting a comprehensive literature review of open source research, and organize the resulting 618 peer-reviewed articles into a taxonomy. Elements of this taxonomy are defined and described. We then draw on a number of existing categorization schemes to develop a framework to situate open source research within a wider nomological network. Building on concepts from systems theory, we propose a holistic framework of open source research. This framework incorporates current research, as represented by the taxonomy, identifies gaps and areas of overlap, and charts a path for future work.

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Section: A Holistic Framework For Open Source Researchmentioning

confidence: 99%

Section: Software Development -Oss Code Efficienciesmentioning

confidence: 99%

A Comprehensive Review and Synthesis of Open Source Research

Aksulu¹,

Wade²

2010

JAIS

131

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“…Typical compiler optimizations perform this only for individual store instructions, or intrinsics such as memset. While modern compiler transforms attempt to convert some loops to memset calls [18], this is only possible if a single-byte (or in some cases, two-byte) pattern is used. This is insufficient for many common cases, such as initializing an array of (fourbyte) integer values to the value '1', as shown in Figure 5.…”

Section: Optimizermentioning

confidence: 99%

SafeInit: Comprehensive and Practical Mitigation of Uninitialized Read Vulnerabilities

Milburn¹,

Bos²,

Giuffrida³

2017

Proceedings 2017 Network and Distributed System Security Symposium

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Usage of uninitialized values remains a common error in C/C++ code. This results not only in undefined and generally undesired behavior, but is also a cause of information disclosure and other security vulnerabilities. Existing solutions for mitigating such errors are not used in practice as they are either limited in scope (for example, only protecting the heap), or incur high runtime overhead. In this paper, we propose SafeInit, a practical protection system which hardens applications against such undefined behavior by guaranteeing initialization of all values on the heap and stack, every time they are allocated or come into scope. Doing so provides comprehensive protection against this class of vulnerabilities in generic programs, including both information disclosure and re-use/logic vulnerabilities. We show that, with carefully designed compiler optimizations, our implementation achieves sufficiently low overhead (<5% for typical server applications and SPEC CPU2006) to serve as a standard hardening protection in practical settings. Moreover, we show that we can effortlessly apply it to harden non-standard code, such as the Linux kernel, with low runtime overhead. Permission to freely reproduce all or part of this paper for noncommercial purposes is granted provided that copies bear this notice and the full citation on the first page. Reproduction for commercial purposes is strictly prohibited without the prior written consent of the Internet Society, the first-named author (for reproduction of an entire paper only), and the author's employer if the paper was prepared within the scope of employment.

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“…The middle end carries into effect all optimizations and triggers platformdependent code production done by the compiler back end. Both the System z back end and the PL8 front end have been described in former issues of this journal [3,4]. This section focuses on how and why we continued to use the GCC for the IBM System z9.…”

Section: Continued Development Of the Pl8 Gcc Compilermentioning

confidence: 99%

Open-standard development environment for IBM System z9 host firmware

et al. 2007

Self Cite

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When the PL8 64-bit GNU compiler collection front end was introduced with the IBM z990 system, it laid the foundation to move toward an open-standard development environment for the i390 layer of IBM System ze host firmware. However, when the z990 system was developed, the proprietary project development library system and the table of contents object file format for i390 code were still being used. With the IBM System z9e, we have moved to a fully open-standard development environment. This paper describes the steps we took to get there, to improve code performance, development efficiency, and regression testing, and to develop base functionality for important System z9 features such as enhanced driver maintenance. We also discuss plans to further enhance the development environment for future systems.

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Contributions to the GNU Compiler Collection

Cited by 4 publications

References 15 publications

A Comprehensive Review and Synthesis of Open Source Research

A Comprehensive Review and Synthesis of Open Source Research

SafeInit: Comprehensive and Practical Mitigation of Uninitialized Read Vulnerabilities

Open-standard development environment for IBM System z9 host firmware

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