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Privacy policy. When you specify a debug option, the compiler produces symbol names for functions and variables, type information, and line locations for use by the debugger. This symbolic debugging information can be included either in the object files. The debug information format options are described in the following sections. By default, if no debug information format option is specified, the compiler produces no debugging information, so compilation is faster. These object files and any libraries built from them can be substantially larger than files that have no debugging information.
The symbolic debugging information includes the names and types of variables, functions, and line numbers. No PDB file is produced by the compiler. For distributors of debug versions of third-party libraries, there's an advantage to not having a PDB file. However, the object files for any precompiled headers are necessary during the library link phase, and for debugging. If there's only type information and no code in the. For detailed information on project settings for debug configurations in C or Visual Basic, see Project settings for a C debug configuration or Project settings for a Visual Basic debug configuration.
In the Configuration list at the top, choose Debug or Release. In the Configuration list, choose Debug or Release. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful?
Please rate your experience Yes No. Any additional feedback? Important The debugger will load only a. Generate symbol files for a C or ASP. NET Core project. NET only For detailed information on project settings for debug configurations in C , see Project settings for a C debug configuration.
In Solution Explorer, right-click the project and choose Properties. The rest of this entry will assume you have set up Symbol Server and Source Server indexing. One good piece of news for those of you who will be using TFS , out of the box the Build server will have the build task for Source Indexing and Symbol Server copying as part of your build. They source index and store every single build of all products they ship into a Symbol Server. That means everything from Windows, to Office, to SQL, to Games and everything in between is stored in one central location.
My guess is that Building 34 in Redmond is nothing but SAN drives to hold all of those files and everyone in that building is there to support those SANs. NET PDB only contains two pieces of information, the source file names and their lines and the local variable names. All the other information is already in the. When you load a module into the process address space, the debugger uses two pieces of information to find the matching PDB file. The first is obviously the name of the file.
If you load ZZZ. The extremely important part is how the debugger knows this is the exact matching PDB file for this binary. Since the act of compiling creates this GUID, stop and think about this for a moment. This is why it is so critical to save your PDB files for every build. However, you can look at the GUID value in your binary. The Pietrek articles will explain the output, but the important piece to us is the Debug Directories output:.
With the knowledge of how the debugger determines the correctly matching PDB file, I want to talk about where the debugger looks for the PDB files. You can see all of this order loading yourself by looking at the Visual Studio Modules window, Symbol File column when debugging. The first place searched is the directory where the binary was loaded. If the PDB file is not there, the second place the debugger looks is the hard coded build directory embedded in the Debug Directories in the PE file.
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