Английская Википедия:Frama-C
Шаблон:Short description Шаблон:Distinguish Шаблон:Infobox software
Frama-C[1] stands for Framework for Modular Analysis of C programs. Frama-C is a set of interoperable program analyzers for C programs. Frama-C has been developed by the French Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA-List)[2] and Inria. It has also received funding from the Core Infrastructure Initiative. Frama-C, as a static analyzer, inspects programs without executing them. Despite its name, the software is not related to the French project Framasoft.
Architecture
Шаблон:Missing information Frama-C has a modular plugin architecture[3] comparable to that of Eclipse (software) or GIMP.
Frama-C relies on CIL (C Intermediate Language) to generate an abstract syntax tree. The abstract syntax tree supports annotations written in ANSI/ISO C Specification Language (ACSL).
Several modules can manipulate the abstract syntax tree to add ANSI/ISO C Specification Language (ACSL) annotations. Among frequently usedШаблон:Vague plugins are:
- Value analysisШаблон:Snd computes a value or a set of possible values for each variable in a program. This plugin uses abstract interpretation techniques and many other plugins make use of its results.
- JessieШаблон:Snd verifies properties in a deductive manner. Jessie relies on the Why[4] or Why3 back-end to enable proof obligations to be sent to automatic theorem provers like Z3, Simplify, Alt-Ergo or interactive theorem provers like Coq or Why. Using Jessie, an implementation of bubble-sort or a toy e-voting system can be proved to satisfy their respective specifications. It uses a separation memory model inspired by separation logic.
- WP (Weakest Precondition)Шаблон:Snd similar to Jessie, verifies properties in a deductive manner. Unlike Jessie, it focuses on parameterization with regards to the memory model. WP is designed to cooperate with other Frama-C plugins such as the value analysis plug-in, unlike Jessie that compiles the C program directly into the Why language. WP can optionally use the Why3 platform to invoke many other automated and interactive provers.
- Impact analysisШаблон:Snd highlights the impacts of a modification in the C source code.
- SlicingШаблон:Snd enables slicing of a program. It enables generation of a smaller new C program that preserves some given properties.[5]
- Spare codeШаблон:Snd removes useless code from a C program.
Other plugins are:
- DominatorsШаблон:Snd computes dominators and postdominators of statements.
- From analysisШаблон:Snd computes functional dependencies.
Features
Frama-C can be used for the following purposes:
- To understand C code which you have not written. In particular, Frama-C enables one to observe a set of values, slice the program into shorter programs, and navigate in the program.
- To prove formal properties on the code. Using specifications written in ANSI/ISO C Specification Language enables it to ensure properties of the code for any possible behavior. Frama-C handles floating point numbers.[6]
- To enforce coding standards or code conventions on C source code, by means of custom plugin(s)[7]
- To instrument C code against some security flaws[8]
See also
References
External links
- Английская Википедия
- C programming language family
- Formal methods tools
- Linux software
- OCaml software
- Science software that uses GTK
- Software testing tools
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- Software using the LGPL license
- Static program analysis tools
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