| author | Matti Laitinen <matti.t.laitinen@nokia.com> |
| Thu, 11 Feb 2010 15:06:45 +0200 | |
| changeset 0 | 5ad7ad99af01 |
| child 4 | 615035072f7e |
| permissions | -rw-r--r-- |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
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<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<title>Code segments</title> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<link href="../../book.css" type="text/css" rel="stylesheet"> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</head> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<body> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<h2>Code segments</h2> |
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Matti Laitinen <matti.t.laitinen@nokia.com>
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<p>The code segment list contains a list of binaries (dlls/plugins/exe) that were loaded at the time of the crash.</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<img src="images\code_segments1.png"> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p></p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p>The kernel creates a code segment for a binary:</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<ul> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li>Whenever the binary is explicitly loaded (RLibrary::Load() or ECOM is used)</li> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li>When the binary contains global data</li> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li>When a process is explicitly created (RProcess::Create())</li> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<li>When the binary in question is loaded into RAM (for example ROFS/ROFX/User Data Area code)</li> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</ul> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p>This means that in some situations the list may not contain all the dependencies of the code that was executing at the time of the exception/panic. For example, any code that is statically linked to another binary and that resides in an Execute In Place (XIP) location, such as the phone ‘ROM’, may not actually appear in the list.</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p>If you expect a specific binary to be present within the list, and upon inspection you find that it is missing it may indicate that the binary has been unloaded unexpectedly. This in itself can cause an exception – for example, if a plugin is unloaded before all objects that utlize code from that plugin have been destroyed, then it may lead to an exception were the object code invoked.</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p>Finally, the list is also color-coded to indicate warnings or errors. For example, items may be highlighted in pink if symbols are unavailable or if the code segment for the binary in question does not align with the code segment information provided by the kernel at the time of the crash. This may indicate that the wrong symbolics have been used to decode the crash file, resulting in incorrect data.</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<p>For reference information, see:</p> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<ul> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
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<li>Symbian OS Internals: <a href="http://www.amazon.com/Symbian-OS-Internals-Real-time-Programming/dp/0470025247">http://www.amazon.com/Symbian-OS-Internals-Real-time-Programming/dp/0470025247</a></li> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</ul> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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5ad7ad99af01
Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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<div id="footer">Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a>.</div> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</body> |
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Initial version of CrashAnalyser under EPL
Matti Laitinen <matti.t.laitinen@nokia.com>
parents:
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</html> |