1. Mixing dll-s compiled with different compilers/ CRT dependencies
This scenario is not supported by Microsoft and you should avoid this according to the following article: Potential Errors Passing CRT Objects Across DLL Boundaries"When you pass C Run-time (CRT) objects such as file handles, locales, and environment variables into or out of a DLL (function calls across the DLL boundary), unexpected behavior can occur if the DLL, as well as the files calling into the DLL, use different copies of the CRT libraries.
A related problem can occur when you allocate memory (either explicitly with new or malloc, or implicitly with strdup, strstreambuf::str, and so on) and then pass a pointer across a DLL boundary to be freed. This can cause a memory access violation or heap corruption if the DLL and its users use different copies of the CRT libraries." This issue not necessarily cause problems when each dll takes the responsibility to de-allocate the memory it has been allocated within the same dll or executable. However we cannot be certain about this for each dlls deployed along with the MapServer and GDAL binary packages, but we should keep this danger out of the door as the packages have been compiled the with the same compiler and CRT setting (/MD). Just make sure you won't mix the dll-s from different packages within your deployment.
2. Expected locations of the CRT redistributables
"When you build an application in Microsoft Visual Studio, and the application uses the C run-time libraries (CRT), distribute the appropriate CRT DLL from the following list with your application:- Msvcr100.dll/Msvcp100.dll for Microsoft Visual C++ 2010
- Msvcr90.dll/Msvcp90.dll for Microsoft Visual C++ 2008
- Msvcr80.dll/Msvcp80.dll for Microsoft Visual C++ 2005
- Msvcr71.dll/Msvcp71.dll for Microsoft Visual C++ .NET 2003 with the Microsoft .NET Framework 1.1
Microsoft Visual C++ 2005 Redistributable Package (x86)
Microsoft Visual C++ 2005 Redistributable Package (x64)
Microsoft Visual C++ 2008 Redistributable Package (x86)
Microsoft Visual C++ 2008 Redistributable Package (x64)
3. Application manifests
Upon establishing the option of the side-by-side assembly cache (as of Win2003 Server and Windows XP) the binaries (dll-s or executables) should declare their (CRT) dependencies in the application manifest file. Without this declaration the application is a candidate to have the following error: C Run-Time Error R6034. "An application manifest is an XML file that describes and identifies the shared and private side-by-side assemblies that an application should bind to at run time. These should be the same assembly versions that were used to test the application. Application manifests may also describe metadata for files that are private to the application. Application manifests should be included as a resource in the application's EXE file or DLL." Fortunately the dlls and executables in the MapServer and GDAL binary packages contain these manifests embedded as a resource in the binary files (for MSVC2005/2008). This is not an issue with the packages build with MSVC2003 where the CRT implementation is located is the application directory (see #2 above) and not in the shared assembly cache.Note: For some reason with Visual Studio 2010 Microsoft has reverted the behaviour to VS2003 and no manifests are generated by default. In these cases the CRT dll-s should be installed along with the applications.
Tamas,
ReplyDeleteIt's worth to add that it only applies to Release binaries and that Visual Studio/Visual C++ EULA forbids distributing Debug versions.
Deleteمسیح و آرش AP
امیر تتلو
مهدی جهانی
Mateusz,
ReplyDeleteDid you refer to the Debug version of the CRT libraries or the Debug version of the development target? I don't see any specific restrictions when distributing "your" code. With regards to the Visual Studio components - in most cases - the files enumerated in redist.txt can be redistributed within the terms of the Visual Studio license agreement.
I mean Debug CRT. I rather don't discuss debug binaries that are not linked to Debug CRT as such debug binaries are fairly useless for debugging purposes.
ReplyDeleteredist.txt doesn't enumerate the debug versions of the CRT dll-s so these files are not redistributable indeed.
ReplyDeleteIf we don't require advanced CRT debug features (like tracking heap allocation requests) it's not necessary to link against the debug versions using /MD /Zi for the development target would also be sufficient to step into the code in the debugger. However, when using the debug CRT options (like /MDd) it would also be essential to compile all of the dependencies with the same CRT setting to avoid the potential problems described in #1. Having a large number of the libraries in the package (more than 30 in my case) it would be quite a challenging task to modify all the corresponding makefiles or solution/project files this way.
It's really nice blog Its helps you to find error and fix them please go through this site and make good solution of your problem.
ReplyDeleteHow To Remove Rundll Error
Thanks
Aalia lyon
Your post helped me in solving one of my university assignment. Thanks for sharing. C++ in Urdu
ReplyDeleteI also had problem with Microsoft Visual Studio Msvcr71.dll file on my laptop. You can easily solve. Just download missed .dll library file from http://fix4dll.com/msvcr71_dll and add in into the system32 folder.
ReplyDeletenice
ReplyDeleteDo you want to know about NBA 2K18 video game? This is the really great game with new design and technology. Click here
ReplyDeleteI'm also a software engineer, and I love C language so much, I do an internship on software engineer and I'm find Pay Someone To Do My Class For Me, because I've no time to do my academic work please help in my bachelor's academic work.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteThe company paper writer offers a full range of services for the preparation of dissertations and other works to order. We have been successfully cooperating in this area for over 16 years. We know how research work can impress the supervisor (consultant) and we do it all the time! See for yourself
ReplyDeleteTragically, complaints list mischievous limits we can't respect. Find out about our progression code methodology. Best Discount code site Summer move away is a colossal time for youngsters summer vacation This is an extremely euphoric time for them. During these occasions. A complete travel guide for visiting London from the specialists at Condé Nast Traveler. london travel guide .. Add class to your look with this scandalous overall dress brand that is known to be up-scale with striking quality. Emporio Armani Whether it's California surfing, Maine tide pooling, or Florida swimming that invigorates the pilgrim, Beach Vacations a reasonable ocean side move away is hanging on. Sea side Vacations Grab your markdown code now and set aside to 70% at Fashion Discount code Save up to half with these persistent coupons The most recent coupon codes at voucherpro. Beauty Discount code
ReplyDelete