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85 lines
2.3 KiB
Markdown
85 lines
2.3 KiB
Markdown
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# Breakpad Crash Reporting for Mozilla
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* January 24, 2007
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* Links updated February 14, 2007
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* Mozilla HQ
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* Mark Mentovai
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* Brian Ryner
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## What is a crash reporter?
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* Enables developers to analyze crashes that occur in the wild
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* Produces stack backtraces that help identify how a program failed
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* Offers higher-level data aggregation (topcrashes, MTBF statistics)
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## Motivation
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* Talkback is proprietary and unmaintained
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* Smaller open-source projects have few options
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* Larger projects need flexibility and scalability
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## Design Options
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* Stackwalking done on client
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* Apple CrashReporter
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* GNOME BugBuddy
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* Client sends memory dump
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* Talkback
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* Windows Error Reporting
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* Breakpad
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## Goals
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* Provide libraries around which systems can be based
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* Open-source
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* Cross-platform
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* Mac OS X x86, PowerPC
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* Linux x86
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* Windows x86
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* No requirement to distribute symbols
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## Client Libraries
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* Exception handler installed at application startup
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* Spawns a separate thread
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* Minidump file written at crash time
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* Format used by Windows debuggers
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* Separate application invoked to send
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* HTTP[S](S.md) POST, can include additional parameters
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## Symbols
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* Cross-platform symbol file format
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* Contents
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* Function names
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* Source file names and line numbers
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* Windows: Frame pointer omission data
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* Future: parameters and local variables
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* Symbol conversion methods
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## Processor
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* Examines minidump file and invokes stackwalker
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* Symbol files requested from a SymbolSupplier
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* Produces stack trace
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* Output may be placed where convenient
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## Intergation
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* Breakpad client present in Gran Paradiso Alpha 1 for Windows
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* Disabled by default
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* Enable with `MOZ_AIRBAG`
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* Proof-of-concept collector
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* http://mavra.perilith.com/~luser/airbag-collector/list.pl
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* Other platforms coming soon
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## More Information
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* Project home: http://code.google.com/p/google-breakpad/
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* Mailing lists
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* [google-breakpad-dev@googlegroups.com]
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(http://groups.google.com/group/google-breakpad-dev/)
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* [google-breakpad-discuss@googlegroups.com]
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(http://groups.google.com/group/google-breakpad-discuss/)
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* Ask me (irc.mozilla.org: mento)
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