Difference between gdb, valgrind, strace, ltrace and apport [closed]
Difference between gdb, valgrind, strace, ltrace and apport [closed]
valgrind
C free(): invalid pointer
You’re attempting to free something that isn’t a pointer to a “freeable” memory address. Just because something is an address doesn’t mean that you need to or should free it. There are two main types of memory you seem to be confusing – stack memory and heap memory. Stack memory lives in the live span … Read more
How to build and install Valgrind on Mac?
Recommended: Use brew: brew install valgrind Manual Install: Here’s what worked on my Mac (10.6). Double-check you have the latest version, then change into the uncompressed directory cd /users/(insert username here)/downloads/valgrind-3.17.0 I suggest you do as another posted and read the readme. nano README Commence the build; /usr/local is the place on the filesystem that … Read more
How do you tell Valgrind to completely suppress a particular .so file?
For most of the suppression types, you omit the wildcard, like so: { name Memcheck:Cond obj:/path/to/lib/lib.so.10.1 } { name Memcheck:Free obj:/path/to/lib/lib.so.10.1 } { name Memcheck:Value8 obj:/path/to/lib/lib.so.10.1 } Note that you must list each type of error separately, you can’t wildcard them. You must also list the entire pathname of the library (as shown by valgrind, … Read more
Is it overkill to run the unit test with Valgrind?
We certainly do – it’s much easier to run valgrind against the unit tests than with the full program. Also any memory errors are localised to the area of code the unit test is testing which makes it easier to fix. Plus checking that you’ve fixed it is easier – because you’re running the unit … Read more
Windows Callgrind results browser, alternative to KCacheGrind [closed]
I have compiled kcachegrind on windows using QT4.7, here is the binary bundle (including the dot utility to generate call graph): http://sourceforge.net/projects/precompiledbin/files/kcachegrind.zip/download
How to install Valgrind on macOS Catalina (10.15) with Homebrew?
See https://github.com/LouisBrunner/valgrind-macos/. Either try brew tap LouisBrunner/valgrind brew install –HEAD LouisBrunner/valgrind/valgrind Or compile it from the source, if the above method doesn’t work. (But they should have fixed the above method just recently.) git clone https://github.com/LouisBrunner/valgrind-macos.git cd valgrind-macos ./autogen.sh ./configure –prefix=/where/you/want/it/installed –enable-only64bit make sudo make install Enjoy!
How do I add valgrind tests to my cmake “test” target
Here is a self contained example that shows how to add valgrind tests to a CMake project. The example consists of a single C++ source file main.cpp: #include <iostream> int main() { double* leak = new double[10]; std::cout << “Hello!” << std::endl; } The code contains an intentional leak which should be picked up by … Read more
valgrind – Address —- is 0 bytes after a block of size 8 alloc’d
strcpy adds a null terminator character ‘\0’. You forgot to allocate space for it: *filename = (char*)realloc(*filename, strlen(*collection_name)*sizeof(char)+5); You need to add space for 5 characters: 4 for “.tde” suffix, and one more for the ‘\0’ terminator. Your current code allocates only 4, so the last write is done into the space immediately after the … Read more
Helgrind (Valgrind) and OpenMP (C): avoiding false positives?
Sorry to put this in as an answer since it’s more of a comment, but it’s too long to fit in as a comment, so here goes: From the site you referenced. Runtime support library for GNU OpenMP (part of GCC), at least for GCC versions 4.2 and 4.3. The GNU OpenMP runtime library (libgomp.so) … Read more