Valgrind 3.3.0 (Default branch)


 
Thread Tools Search this Thread
Special Forums News, Links, Events and Announcements Software Releases - RSS News Valgrind 3.3.0 (Default branch)
# 1  
Old 12-24-2007
Valgrind 3.3.0 (Default branch)

Valgrind is a tool that helps you find memory management problems inprograms. When a program is run under Valgrind's supervision, allreads and writes of memory are checked, and calls tomalloc/new/free/delete are intercepted. As a result, Valgrind candetect problems such as use of uninitialized memory, reading/writingof memory after it has been freed, reading/writing off the end ofmalloced blocks, reading/writing inappropriate areas on the stack,memory leaks in which pointers to malloced blocks are lost forever,passing of uninitialized and/or unaddressable memory to system calls,and mismatched use of malloc/new/new [] vs. free/delete/delete [].License: GNU General Public License (GPL)Changes:
Helgrind works again with improved race detection and better error messages. Massif generates better output. Cachegrind has been extended to do branch-misprediction profiling. Both conditional and indirect branches are profiled. Scalability has been improved for very large programs, particularly those with a million or more malloc'd blocks in use at once. These improvements mostly affect Memcheck, which is also up to 10% faster for all programs, with x86 Linux seeing the largest improvement. The documentation has been reorganized. Experimental tools have been added. There are many other changes.Image

More...
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Using Valgrind with already running process

I have a process(c program) which runs as daemon and is causing memory leak. Is there any way to detect memory leak in this already running process? Just like we attach gdb to a live process to debug it, can I use valgrind to detect memory leak in such live process? When I tried using valgrind... (3 Replies)
Discussion started by: rupeshkp728
3 Replies

2. Ubuntu

valgrind

Hello, I want to install and run a tool called Daikon on my Ubuntu(latest version) While compiling I got this error--------> checking the GLIBC_VERSION version... unsupported version configure: error: Valgrind requires glibc version 2.2 - 2.11 make: *** Error 1 make: Leaving directory... (3 Replies)
Discussion started by: paramad
3 Replies

3. Programming

Valgrind Error : Conditional jump or move depends on uninitialised value(s)

Hi Friends, I am using valgrind, to check errors, there are no errors in my code but this the output put i get, i need to suppress these errors, please help me do so... Conditional jump or move depends on uninitialised value(s) ==2350== at 0x400AF0F: (within /lib/ld-2.11.1.so)... (0 Replies)
Discussion started by: niranjanvg
0 Replies

4. Programming

Valgrind error

I get this Valgrind error while using malloc but if I use calloc then there is no error. I allocate 8 bytes for the string inside sprintf, 12 for the ip and 1 for the string terminator. This totals 21, so why is it talking about 20 bytes and 18 bytes ? Partial code: char ip =... (3 Replies)
Discussion started by: cyler
3 Replies

5. AIX

valgrind - pthread memory leaks on AIX

Hi all, I have written a small code just to invoke main and return immediately. When built with libpthread on AIX box, valgrind throws lots of memory leak errors. But when built without libpthread, no issues at all. Here is the sample run for your look. Any idea where I might be going wrong?... (3 Replies)
Discussion started by: visionofarun
3 Replies

6. UNIX for Dummies Questions & Answers

valgrind Conditional jump or move depends on uninitialised value(s)

Hi, I know similar questions appeared here already, still i didnt find answer to my problem yet. Im getting the following message from valgrind (version 2): ==15414== 1 errors in context 1 of 6: ==15414== Conditional jump or move depends on uninitialised value(s) ==15414== at... (2 Replies)
Discussion started by: evasz
2 Replies

7. Programming

valgrind (Conditional jump or move depends on uninitialised value(s))

Hi everybody, I wrote a small subroutine 'GetStringDelim()' to return a substring from a string enclosed by a string 'Limit1' and a char 'Limit2'. It works perfectly and I don't get an error message together with valgrind, if I set the 3rd parameter in GetStringDelim() to NULL (see below). ... (3 Replies)
Discussion started by: MIB_Maik
3 Replies

8. AIX

Can Valgrind work well on AIX?

As Valgrind announced, 3.3.0 and 3.3.1 version can support AIX 5.3. But I met a block issue when I used Valgrind on AIX After installing Valgrind3.3.1 successfully on AIX5.3, I typed the following command of Valgrind: valgrind -d --tool=memcheck ls Then, the following result from Valgrind is... (0 Replies)
Discussion started by: adasong
0 Replies
Login or Register to Ask a Question
Test::Valgrind::Action::Suppressions(3pm)		User Contributed Perl Documentation		 Test::Valgrind::Action::Suppressions(3pm)

NAME
Test::Valgrind::Action::Suppressions - Generate suppressions for a given tool. VERSION
Version 1.13 DESCRIPTION
This action just writes the contents of the suppressions reports received into the suppression file. METHODS
This class inherits Test::Valgrind::Action. "new name => $name, target => $target, ..." Your usual constructor. You need to specify the suppression prefix as the value of "name", and the target file as "target". Other arguments are passed straight to "Test::Valgrind::Action->new". "name" Read-only accessor for the "name" option. "target" Read-only accessor for the "target" option. SEE ALSO
Test::Valgrind, Test::Valgrind::Action. AUTHOR
Vincent Pit, "<perl at profvince.com>", <http://www.profvince.com>. You can contact me by mail or on "irc.perl.org" (vincent). BUGS
Please report any bugs or feature requests to "bug-test-valgrind at rt.cpan.org", or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Valgrind <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Valgrind>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes. SUPPORT
You can find documentation for this module with the perldoc command. perldoc Test::Valgrind::Action::Suppressions COPYRIGHT &; LICENSE Copyright 2009,2010,2011 Vincent Pit, all rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.4 2011-08-25 Test::Valgrind::Action::Suppressions(3pm)