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by D' Engler, B' Chelf, A' Chou, S' Hallem PowerPoint PPT Presentation
by D' Engler, B' Chelf, A' Chou, S' Hallem - Checking System Rules Using System-Specific, Programmer-Written Compiler Extensions ... {z--} == {err('post-decrement' ... decrements it during unloading (by ...
Checking System Rules Using System-Specific, Programmer-Written Compiler Extensions ... {z--} == {err('post-decrement' ... decrements it during unloading (by ...
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A System and Language for Building SystemSpecific, Static Analyses CMSC 631 Fall 2003 PowerPoint PPT Presentation
A System and Language for Building SystemSpecific, Static Analyses CMSC 631 Fall 2003 - Seth Hallem, Benjamin Chelf, Yichen Xie, and Dawson Engler (presented by ... Deletes state attached to redefined expressions. 14. Intraprocedural Heuristics ...
Seth Hallem, Benjamin Chelf, Yichen Xie, and Dawson Engler (presented by ... Deletes state attached to redefined expressions. 14. Intraprocedural Heuristics ...
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How to find lots of bugs by checking program belief systems PowerPoint PPT Presentation
How to find lots of bugs by checking program belief systems - How to find lots of bugs by checking program belief systems Dawson Engler David Chen, Seth Hallem, Ben Chelf, Andy Chou Stanford University ...
How to find lots of bugs by checking program belief systems Dawson Engler David Chen, Seth Hallem, Ben Chelf, Andy Chou Stanford University ...
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Static Analysis and Modeling PowerPoint PPT Presentation
Static Analysis and Modeling - Dawson Engler, Benjamin Chelf, Andy Chou, and Seth Hallem. ... Unreclaimed memory checks 'Double free' instances checks. Use after deallocation checks ...
Dawson Engler, Benjamin Chelf, Andy Chou, and Seth Hallem. ... Unreclaimed memory checks 'Double free' instances checks. Use after deallocation checks ...
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Weird things that surprise academics trying to commercialize a static checking tool. PowerPoint PPT Presentation
Weird things that surprise academics trying to commercialize a static checking tool. - Title: Selling an Idea or a Product Author: public pc (3rd floor) Last modified by: Dawson Engler Created Date: 6/2/1995 10:06:36 PM Document presentation format
Title: Selling an Idea or a Product Author: public pc (3rd floor) Last modified by: Dawson Engler Created Date: 6/2/1995 10:06:36 PM Document presentation format
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Bugs as deviant behavior: a general approach to inferring errors in systems code PowerPoint PPT Presentation
Bugs as deviant behavior: a general approach to inferring errors in systems code - can use automatically generated rules. r e l a t e d w o r k. type systems. specifications ... Rules for belief propagation. i n t e r n a l c o n s i s t e n c ...
can use automatically generated rules. r e l a t e d w o r k. type systems. specifications ... Rules for belief propagation. i n t e r n a l c o n s i s t e n c ...
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Figure 202 PowerPoint PPT Presentation
Figure 202 - Figure 202
Figure 202
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Static Code Checking: Security and Concurrency PowerPoint PPT Presentation
Static Code Checking: Security and Concurrency - Neither can proceed these threads are deadlocked. Race condition ... Two threads can simultaneously write to same memory (bad) One thread can read, another can ...
Neither can proceed these threads are deadlocked. Race condition ... Two threads can simultaneously write to same memory (bad) One thread can read, another can ...
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Ownership Types for Safe Programming: Preventing Data Races and Deadlocks PowerPoint PPT Presentation
Ownership Types for Safe Programming: Preventing Data Races and Deadlocks - ... least one access is a write No synchronization to separate accesses Avoiding Data Races Avoiding Data Races Associate locks with shared mutable data Acquire ...
... least one access is a write No synchronization to separate accesses Avoiding Data Races Avoiding Data Races Associate locks with shared mutable data Acquire ...
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Using System-Specific Compiler Extensions to Find Errors in Systems Code PowerPoint PPT Presentation
Using System-Specific Compiler Extensions to Find Errors in Systems Code - Talk about how to find hundreds of errors by just putting a little bit of system specific knowledge in a compiler Using System-Specific Compiler Extensions to Find ...
Talk about how to find hundreds of errors by just putting a little bit of system specific knowledge in a compiler Using System-Specific Compiler Extensions to Find ...
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ContextSensitive, Interprocedural Dataflow Analysis as CFL Reachability PowerPoint PPT Presentation
ContextSensitive, Interprocedural Dataflow Analysis as CFL Reachability - Exploded supergraph (next couple of s) Outputs from the algorithm: ... Is it always cheap to compute the exploded supergraph? ...
Exploded supergraph (next couple of s) Outputs from the algorithm: ... Is it always cheap to compute the exploded supergraph? ...
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Chandrasekhar Boyapati PowerPoint PPT Presentation
Chandrasekhar Boyapati - Ownership Types for Safe Programming Chandrasekhar Boyapati Laboratory for Computer Science Massachusetts Institute of Technology
Ownership Types for Safe Programming Chandrasekhar Boyapati Laboratory for Computer Science Massachusetts Institute of Technology
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A Parameterized Type System for Race-Free Java Programs PowerPoint PPT Presentation
A Parameterized Type System for Race-Free Java Programs - A Parameterized Type System for Race-Free Java ... require almost no programming overhead Outline Motivation ... game server stock quote server ...
A Parameterized Type System for Race-Free Java ... require almost no programming overhead Outline Motivation ... game server stock quote server ...
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Ownership Types for Safe Programming: Preventing Data Races and Deadlocks PowerPoint PPT Presentation
Ownership Types for Safe Programming: Preventing Data Races and Deadlocks - Thread n holds Lock n, waits for Lock 1. Deadlocks in ... Threads must acquire locks in descending order of lock levels. Lock Level Based Partial Orders ...
Thread n holds Lock n, waits for Lock 1. Deadlocks in ... Threads must acquire locks in descending order of lock levels. Lock Level Based Partial Orders ...
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A Parameterized Type System for Race-Free Java Programs PowerPoint PPT Presentation
A Parameterized Type System for Race-Free Java Programs - A Parameterized Type System for Race-Free Java Programs Chandrasekhar Boyapati Martin Rinard Laboratory for Computer Science Massachusetts Institute of Technology
A Parameterized Type System for Race-Free Java Programs Chandrasekhar Boyapati Martin Rinard Laboratory for Computer Science Massachusetts Institute of Technology
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Finding%20bugs%20with%20system-specific%20static%20analysis PowerPoint PPT Presentation
Finding%20bugs%20with%20system-specific%20static%20analysis - This talk is about how you can find lots of bugs in real code by making compilers aggressively system specific Finding bugs with system-specific static analysis
This talk is about how you can find lots of bugs in real code by making compilers aggressively system specific Finding bugs with system-specific static analysis
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Translator. Annotated Java program. Verification condition PowerPoint PPT Presentation
Translator. Annotated Java program. Verification condition - Translator. Annotated Java program. Verification condition. Counterexample context ... Translator. Annotation language. Specification expressions. side-effect ...
Translator. Annotated Java program. Verification condition. Counterexample context ... Translator. Annotation language. Specification expressions. side-effect ...
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A Parameterized Type System for Race-Free Java Programs PowerPoint PPT Presentation
A Parameterized Type System for Race-Free Java Programs - Two threads concurrently access same data. At least one access is a write ... Problem: Locking is not enforced! Inadvertent programming errors... Our solution ...
Two threads concurrently access same data. At least one access is a write ... Problem: Locking is not enforced! Inadvertent programming errors... Our solution ...
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A Parameterized Type System for RaceFree Java Programs PowerPoint PPT Presentation
A Parameterized Type System for RaceFree Java Programs - Basic type system: Locks, thread-local objects. Object ownership. Type system. Type inference ... Necessary and sufficient to lock its root owner ...
Basic type system: Locks, thread-local objects. Object ownership. Type system. Type inference ... Necessary and sufficient to lock its root owner ...
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A Parameterized Type System for RaceFree Java Programs PowerPoint PPT Presentation
A Parameterized Type System for RaceFree Java Programs - A Parameterized Type System for Race-Free Java Programs. Chandrasekhar Boyapati Martin Rinard ... Statically verifiable race-free program. a1 is locked before ...
A Parameterized Type System for Race-Free Java Programs. Chandrasekhar Boyapati Martin Rinard ... Statically verifiable race-free program. a1 is locked before ...
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How to find lots of bugs by checking program belief systems PowerPoint PPT Presentation
How to find lots of bugs by checking program belief systems - How to find lots of bugs by checking program belief systems. Dawson Engler ... Crucial: we know contradiction is an error without knowing the correct belief! ...
How to find lots of bugs by checking program belief systems. Dawson Engler ... Crucial: we know contradiction is an error without knowing the correct belief! ...
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How to find lots of bugs by checking program belief systems PowerPoint PPT Presentation
How to find lots of bugs by checking program belief systems - Can look for redundancy in general: deadcode elim is an error finder. ... Can cross-correlate: free is on error path, has dealloc in name, etc, bump up ranking. ...
Can look for redundancy in general: deadcode elim is an error finder. ... Can cross-correlate: free is on error path, has dealloc in name, etc, bump up ranking. ...
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How to find lots of bugs with system-specific static analysis PowerPoint PPT Presentation
How to find lots of bugs with system-specific static analysis - This talk is about how you can find lots of bugs in real code by making compilers aggressively system specific How to find lots of bugs with system-specific static ...
This talk is about how you can find lots of bugs in real code by making compilers aggressively system specific How to find lots of bugs with system-specific static ...
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Finding bugs with systemspecific static analysis PowerPoint PPT Presentation
Finding bugs with systemspecific static analysis - This talk is about how you can find lots of bugs in real code by making ... Some big, gaping security holes. Remote exploit, no checks. Unexpected overflow: ...
This talk is about how you can find lots of bugs in real code by making ... Some big, gaping security holes. Remote exploit, no checks. Unexpected overflow: ...
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