English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

This paper presents evidence-based dynamic analysis, an approach that enableslightweight analyses--under 5% overhead for these bugs--making it practical forthe first time to perform these analyses in deployed settings. The key insightof evidence-based dynamic analysis is that for a class of errors, it ispossible to ensure that evidence that they happened at some point in the pastremains for later detection. Evidence-based dynamic analysis allows executionto proceed at nearly full speed until the end of an epoch (e.g., a heavyweightsystem call). It then examines program state to check for evidence that anerror occurred at some time during that epoch. If so, it rolls back executionand re-executes the code with instrumentation activated to pinpoint the error.  We present DoubleTake, a prototype evidence-based dynamic analysis framework.DoubleTake is practical and easy to deploy, requiring neither custom hardware,compiler, nor operating system support. We demonstrate DoubleTake's generalityand efficiency by building dynamic analyses that find buffer overflows, memoryuse-after-free errors, and memory leaks. Our evaluation shows that DoubleTakeis efficient, imposing just 4% overhead on average, making it the fastest suchsystem to date. It is also precise: DoubleTake pinpoints the location of theseerrors to the exact line and memory addresses where they occur, providingvaluable debugging information to programmers.

DoubleTake: Fast and Precise Error Detection via Evidence-Based Dynamic Analysis