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Subject: Re: Cygwin environment and Bounds issues

Author: Charles Roberson

Date: 12:47:24 02/19/05

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 Found this. May be able to rebuild it for cygwin.


checker - Finds memory errors at runtime
'checker' can help find bugs that standard tools cannot always find. The best
example is memory leaks. A memory leak is a zone of memory, allocated with
malloc that is not used anymore. So the memory allocated is lost. This means you
program needs more memory and runs slower, since your OS might have to start
swapping.
It detects bad memory accesses such as: reading uninitialized memory, writing in
a freed zone, writing or reading outside of a memory block, and using NULL
pointers. This is particularly useful for big programs with many functions.

Checker maintains bitmaps to keep track of the status of each byte of memory.
The status can be writable, readable, both, or none. When memory is allocated,
the new memory becomes write-only: you are not allowed to read it because it has
not been initialized. But when you you write to this new block, those bytes
become readable and writable. When the block is freed, the bytes become
unreadable and unwritable. Red zones are unreadable and unwritable memory, so
that each access to a red zone produces a warning.

Obtaining

Web page http://www.gnu.org/software/checker/
Source tarball ftp://alpha.gnu.org/gnu/checker/Checker-0.9.9.1.tar.gz
Source information ftp://alpha.gnu.org/gnu/checker/
 Version 0.9.9.1 (stable) released on 2002-08-24

Licensed under The GNU General Public License, Version 2.
This is a GNU package.


Support contacts

Bug List <bug-checker@gnu.org>

Project contacts

Maintainers Ben Pfaff <blp@cs.stanford.edu>

Developers Tristan Gingold <bug-checker@gnu.org>

Contributors Ben Pfaff <blp@cs.stanford.edu>


Related information

Source repository :pserver:anoncvs@subversions.gnu.org:/cvsroot/checker
http://savannah.gnu.org/cvs/?group_id=58
Programs checkergcc
Source languages C
Supported languages C++, C
Use requirements gcc 2.8.1
Build prerequisites gcc

Entry information

License verified by Janet Casey <jcasey@gnu.org> on 2001-03-01
Entry compiled by Janet Casey <jcasey@gnu.org>


Categories

Top > Software development > Debugging
Top > All GNU Packages
Top > All Packages in Directory




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