6b8ce695b8
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@950 626c5289-ae23-0410-ae9c-e8d60b6d4f22
49 lines
1.5 KiB
Text
49 lines
1.5 KiB
Text
WAD (Wrapped Application Debugger)
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David M. Beazley
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Department of Computer Science
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University of Chicago
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Chicago, IL 60637
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beazley@cs.uchicago.edu
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Copyright (C) 2000
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University of Chicago
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All Rights Reserved
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1. Introduction
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WAD is an embedded error-recovery mechanism that allows fatal errors
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such as SIGSEGV, SIGBUS, and SIGFPE to converted into exceptions for
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use in scripting languages and similar systems.
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Debugging Modes
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---------------
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The following WAD debugging modes can be set through the use of environment
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variables:
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WAD_DEBUG_SEGMENT - Displays information about the virtual memory
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map and mapping of addresses to segments.
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WAD_DEBUG_SYMBOL - Symbol table mapping.
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WAD_DEBUG_OBJECT - Loading/Unloading of object files.
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WAD_DEBUG_FILE - Loading/Unloading of raw files.
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WAD_DEBUG_HOLD - Freezes WAD before it returns from the signal handler.
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Useful if you need to attach a debugger to WAD itself.
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WAD_DEBUG_STABS - Display stabs data.
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WAD_DEBUG_RETURN - Display information about WAD return points.
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WAD_DEBUG_SYMBOL_SEARCH - Display all symbols in the symbol table that are
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searched.
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WAD_DEBUG_INIT - Print initialization information.
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WAD_NOSTACK - Do NOT use an alternative signal handling stack.
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This may be necessary on certain Linux systems when
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threads are being used.
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