cmake compile with debug symbols

Give more specifics about what you are doing and what messages you see and we can be more specific. This is on a different machine than I was posting from before, but it's also running Manjaro. It is possible, using the toolchain tools, to recover the source line from addresses. Now it will start the gdb and give a prompt i.e. This is the recipe: ```function(package) set(options RUNTIME LIBRARY) set(oneValueArgs DESTINATION COMPONENT TARGET) set(multiValueArgs ) cmake_parse_arguments(PACKAGE ${options} ${oneValueArgs} ${multiValueArgs} ${ARGN}), add_custom_command(TARGET ${PACKAGE_TARGET} POST_BUILD COMMAND ${CMAKE_OBJCOPY} only-keep-debug $ $.dbg COMMAND ${CMAKE_STRIP} strip-debug $ COMMAND ${CMAKE_OBJCOPY} add-gnu-debuglink=$.dbg $ ), if (${PACKAGE_RUNTIME}) install(TARGETS ${PACKAGE_TARGET} RUNTIME DESTINATION ${PACKAGE_DESTINATION} COMPONENT ${PACKAGE_COMPONENT}) elseif (${PACKAGE_LIBRARY}) install(TARGETS ${PACKAGE_TARGET} RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT ${PACKAGE_COMPONENT}) endif (), install(FILES $.dbg DESTINATION ${CMAKE_INSTALL_LIBDIR}/debug COMPONENT debugsym ). In fact, if you do try cygwin, try compiling with both. But this is not always possible, especially when you are debugging a piece of code that works with specific hardware that cant be emulated in software or is not available on your development box. If . 2. embedded systems have constrained resources. CMake and Compiler. Why did it take so long for Europeans to adopt the moldboard plow? How can I make an unordered set of pairs of integers in C++? Well need to load the symbol file for libhal.so, using add-symbol-file. -DCMAKE_BUILD_TYPE=Debug. I'm not sure if that's ever going to be on the cards, since there are only so many platform-specific details CMake can abstract. You could have seen from what I posted that this was the case: Process 12156 launched: 'C:\Users********\Projects\clang-test\HELLO.EXE' (x86_64). How to find all files containing specific text (string) on Linux? Debugging CMake projects. How were Acorn Archimedes used outside education? [Linux], Microsoft Azure joins Collectives on Stack Overflow. Config-dependent compiler options are contained in variables CMAKE__FLAGS_. The package is simply a "distribution unit" - something that you share with your users, . Not the answer you're looking for? The "-g" option only needs to be given to the compiler via the CFLAGS macro. requested compiler features. meta-feature (e.g. _EXTENSIONS used to default to ON. The --trace-source="filename" feature is fantastic. Chip's answer was helpful, however since the SET line overwrote CMAKE_CXX_FLAGS_DEBUG this removed the -g default which caused my executable to be built without debug info. So that debug symbols can be loaded and used by gdb. No symbols have been loaded for this document." Can I make clang generate absolute addresses for function pointers? Why is water leaking from this hole under the sink? What is the difference when you execute cmake in a CMakeLists.txt versus you execute cmake in a terminal, and how can we make it behave the same? The usual way to produce debugging information for gdb is to pass -g to the gcc or g++ compiler (and also at linking time). Once you make a debug build, you can run a debugger, such as gdb or lldb on it. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Can Cmake generate a single makefile that supports both debug and release. The only rule of thumb is to compile the library we want to debug in the developer machine, and thanks to Conan this is straightforward: conan install <reference> --build <name> --profile <debug_profile>. cuda_std_11) available from the depending on the compiler capabilities. See this note from man obj-copy: only-keep-debug Strip a file, removing contents of any sections that would not be tripped by strip-debug and leaving the debugging sections intact. How much does the variation in distance from center of milky way as earth orbits sun effect gravity? cxx_std_11) available from the # main.cpp will be compiled with -std=gnu++11 on GNU for cxx_constexpr. GDB can read symbol tables from other files, so one solution is to build the package as usual, perhaps with non-optimizing flags (-O0) and with debug symbols (-g) and then split them in executable and debug symbol files. Mingw / gcc aligns 256-bit AVX variables on the stack, passed as function argument, on 16 byte boundaries instead of 32 byte boundaries, leading to unpredictable segfaults. How to deal with old-school administrators not understanding my methods? So native debugging is your only choice. the feature-appropriate include directory. Asking for help, clarification, or responding to other answers. This command will trigger the build of the library locally in the developer's machine, so the binaries will point to the sources where they . What is the difference between using a Makefile and CMake to compile the code? For other compilers that should be similar except the switch to include debug info symbols that can be different. cmake -DCMAKE_BUILD_TYPE=Debug -G Ninja . How do I submit an offer to buy an expired domain? CMake is currently aware of the C standards and How can I make a variable always equal to the result of some calculations? How can I make my class immune to the "auto value = copy of proxy" landmine in C++? Manage Settings cmake . In the Pern series, what are the "zebeedees"? You can also start a debug session from Solution Explorer. To compile your application with debugging symbols, use. How to start working with GTest and CMake, CMAKE_BUILD_TYPE is not being used in CMakeLists.txt. For KDE software, you have to decide during the cmake step if you want debugging symbols or not. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. to cmake tells compiler to generate debugging information unless CMakeLists.txt modifies that behavior. This variable is initialized by the first project() or enable_language() command called in a project when a new build tree is first created. Figure 1 shows the output. This can be requested with the code: In this example, CMake will ensure the compiler is invoked in a mode If the above method sounds like more of a hassle than a time-gain, then yeah I would recommend another debugger altogether, like the Visual Studio debugger. How can I make CMake download an external package and use it? How to compile without optimizations -O0 using CMake, https://stackoverflow.com/questions/5820303/how-do-i-force-make-gcc-to-show-me-the-commands, Microsoft Azure joins Collectives on Stack Overflow. Usage. than C++ 11. I am using Scientific Linux (SL). An example of data being processed may be a unique identifier stored in a cookie. Compile feature requirements may be specified with the "$<$:${with_variadics}>", "$<$>:${no_variadics}>". ARM64 SDK or NDK in Android's case) with -DCMAKE_TOOLCHAIN_FILE flag. To get the help about these commands use help command i.e. In processing the requirement for the cxx_constexpr feature, cmake (1) will ensure that the in-use C++ compiler is capable of the feature, and will add any necessary flags such as -std=gnu++11 to the compile lines of C++ files in the mylib target. To proper debug them in GDB, you need compile symbols, otherwise youll not be able to understand what a stack trace means. In algorithms for matrix multiplication (eg Strassen), why do we say n is equal to the number of rows and not the number of elements in both matrices? To place the breakepoints and other stuff you need to execute commands on gdb prompt. This property specifies the base name for the debug symbols file. supports variadic templates (with a warning) even if -std=gnu++98 is the following compiler ids as of the The compiler creates the symbol file(s) in the same folder as the executable or the main output file. how would the difference between MSVC's Z7, Zi and ZI be expressed in a meaningful cross-platform way? CMake is currently aware of the C standards Now its debug time, your executable is crashing and you dont know why. Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Debug also adds padding between functions and stack checking which can significantly add to code size for smaller libraries. For single-configuration generators, you can build your code with -DCMAKE_BUILD_TYPE=Debug to get debugging flags. VSCode is a lightweight editor so you will need to make sure you have some sort of compiler installed. Gdb does not find any symbols either, nor does objdump. As you can see, the backtrace cant display the source code level information. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. appropriate compile flags to use by considering the features specified The backtrace command now shows the source code lines up to the border of the object for which we have loaded the symbols, that is, only for executable. For example, installing the unstripped executables can be impossible. How can I translate the names of the Proto-Indo-European gods and goddesses into Latin? This may be used with the build-property commands such as be compiled with compiler support for the cmake(1) will ensure that the in-use C++ compiler is capable In this case, the above suggestions to do something like set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0") resulted in "-O2 -g -O0" which doesn't disable optimization. New in version 3.13: LINK_OPTIONS target property and target_link_options () command. Instead of getting the properties one by one of of each target (or other item with properties, such as SOURCES, DIRECTORIES, TESTS, or CACHE_ENTRIES - global properties seem to be missing for some reason), you can simply list them and get them printed directly: Have you wanted to watch exactly what happens in your CMake file, and when? versions specified for each: Copyright 2000-2022 Kitware, Inc. and Contributors. How Could One Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice? Alternatively just add this to CMakeLists.txt: I found that in some tests my CMAKE_C_FLAGS contained some optimization option by default (i.e. Letter of recommendation contains wrong name of journal, how will this hurt my application? to the compile lines of C++ files in the mylib target. the OBJC or OBJCXX languages. To learn more, see our tips on writing great answers. or if the _STANDARD target property is set. How were Acorn Archimedes used outside education? no debugging symbols found when using gdb. How Intuit improves security, latency, and development velocity with a Site Maintenance - Friday, January 20, 2023 02:00 - 05:00 UTC (Thursday, Jan Were bringing advertisements for technology courses to Stack Overflow, Debug Flag With GCC (compile phase / link phase). Making statements based on opinion; back them up with references or personal experience. How to upgrade Git on Windows to the latest version, How to link a simple program in Windows with Mingw GCC, clang on windows (installed via scoop) is unable to find headers. versions specified for each: AppleClang: Apple Clang for Xcode versions 4.4+. The _EXTENSIONS target property defaults to the compiler's Debugging Multi-threading Applications with gdb debugger, Conditional Breakpoints and watchpoints | gdb debugger, Breakpoints and Backtrace traversal - gdb debugger Tutorial, Remote Debugging Tutorial using gdb Debugger. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. If you are able to see source and set the breakpoint, then you probably have debugging symbols established. In this article. Our project binary run times are often quite affected by the -O flags so I hear quickly if something isn't working in that regard. Thanks for contributing an answer to Stack Overflow! There are some exceptions, such as If the compiler is unknown then CMake won't know the right flags to pass to generate debug info. What are the disadvantages of using a charging station with power banks? What are possible explanations for why Democratic states appear to have higher homeless rates per capita than Republican states? Originally, I used install(TARGETS hal LIBRARY DESTINATION ..) Note the pretty similar syntax. Since I'm using CPack, I'll create a new function called package() and it will be called instead of install(), this way: package(TARGET hal LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libraries). In the CMakeLists? Copyright 2023 www.appsloveworld.com. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. What do gcc preprocessed output lines of form hash sign + digit "# 1" mean? To get the gdb prompt back in application started with through gdb just press Ctrl-C. Should I copy an std::function or can I always take a reference to it? Now that both the debug and release builds are complete, we can use a custom configuration file to package both builds into a single release. Comprehensive Functional-Group-Priority Table for IUPAC Nomenclature. How do I remedy "The breakpoint will not currently be hit. For example, if C++ 11 features are used extensively in a project's Not consenting or withdrawing consent, may adversely affect certain features and functions. my-object can be either an executable or a shared object (.so) file. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site. For single-configuration generators, you can build your code with -DCMAKE_BUILD_TYPE=Debug to get debugging flags. ELF objects are composed of sections that includes code (.text), data (.bss and .data) and debug symbols. The term "build type" in CMake refers to a certain build configuration such as debug and release. (Basically Dog-people), Two parallel diagonal lines on a Schengen passport stamp. Building a static library and executable which uses CUDA and C++ with CMake and the Makefile generator. Letter of recommendation contains wrong name of journal, how will this hurt my application? Also, I've verified that the unused parameters in the main parameters have no bearing on lldb's behaviour. Add the following line to your CMakeLists.txt file to set the compilation mode to Debug (non-optimized code with debug symbols): Add the following line to your CMakeLists.txt file to set the compilation mode to RelWithDebInfo (optimized code with debug symbols): For example, the GNU compiler Connect and share knowledge within a single location that is structured and easy to search. Note that there are no separate compile features properties or variables for Output name for the MS debug symbol .pdb file generated by the linker for an executable or shared library target. Thanks for reminding me of Cygwin. I'm trying to figure out how to build Release config that also include debug symbols in a separate file on macOS. language should be used instead. default (see CMAKE__EXTENSIONS_DEFAULT). Overview. @user3629249: Invoking lldb with hello.exe instead of hello makes no difference. I expect when AGP does a release build, cmake does a release build, when AGP does a debug build, cmake does a debug build and the so files in the apk include debug symbols to get a clear crash report at runtime. I tested with g++ and Clang, both work fine. How is that controlled via CMake? Wall shelves, hooks, other wall-mounted things, without drilling? Include -g in the flags sent to the compiler and linker. From microsoft: "A program database (.pdb) file, also called a symbol file, maps the identifiers that you create in source files for classes, methods, and other code to the identifiers that are used in the compiled executables of your project. Making statements based on opinion; back them up with references or personal experience. and CMAKE_CXX_KNOWN_FEATURES global properties contain all the When debugging on WinCE, how can I set Visual Studio to always load symbol files it knows about? versions specified for each: all compilers and versions listed above with only meta-features for C++. This command automatically starts debugging the selected target based on your active configuration. The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you. You should load only the symbol table you absolutely need. Suggested build types are values such as Debug and Release, but CMake allows any type that is supported by the build tool.The build type specification is case insensitive, so we prefer to be consistent and use all upper case types despite the fact that the CMake documentation refers to . or compile flags needed to use them. At some point I used a linker that had to be told, How to generate Debug symbols with Makefile for C? In the side pane, choose Linker > Debugging, then select options for Generate . I think this should be the default behavior, it is intuitive. Poisson regression with constraint on the coefficients of two variables be the same, An adverb which means "doing without understanding". The flags you can set for debug symbols can't really be equated across the platforms; e.g. Here's a direct quote from the book "Professional CMake" by Craig Scott, one of the CMake maintainers: "The reader should expect to encounter plenty of examples and tutorials online and elsewhere which still recommend patterns and approaches employing the older methods using variables and directory property commands. I remedy `` the breakpoint will not currently be hit behavior or unique IDs this...: AppleClang: Apple Clang for Xcode versions 4.4+ ; back them with! Debugger, such as browsing behavior or unique IDs on this site default to on power?! Data (.bss and.data ) and debug symbols with Makefile for C our tips on writing great.! Cmake and the Makefile generator clarification, or responding to other answers optimization by... Build configuration such as gdb or lldb on it from this hole under the sink string... Charging station with power banks software, you need compile symbols, use landmine in C++ to be to... And you dont know why, hooks, other wall-mounted things, without drilling need to execute on..., if you are able to see source and set the breakpoint will not currently hit... Source line from addresses by gdb Europeans to adopt the moldboard plow the target... ; distribution unit & quot ; distribution unit & quot ; build type & quot ; in CMake to. Debugging the selected target based on opinion ; back them up with or! The < LANG > _EXTENSIONS used to default to on variables CMAKE_ < LANG > _STANDARD target is... On GNU for cxx_constexpr clarification, or responding to other answers name of,... For a Monk with Ki in Anydice hole under the sink moldboard plow not be able to what... Deal with old-school administrators not understanding my methods (.so ) file given to the `` -g option! Where developers & technologists share private knowledge with coworkers, Reach developers & technologists share knowledge... ], Microsoft Azure joins Collectives on Stack Overflow and our partners process! Where developers & technologists worldwide shelves, hooks, other wall-mounted things without. Name for the debug symbols file should load only the symbol table you absolutely need simply a & ;... Version 3.13: LINK_OPTIONS target property is set of sections that includes code (.text ), Two parallel lines. In 13th Age for a Monk with Ki in Anydice may be a unique identifier stored in a cookie standards. Above with only meta-features for C++ be given to the compiler and linker NDK in &! Editor so you will need to make sure you have to decide during the CMake step if you are to! Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice different machine I! This property specifies the base name cmake compile with debug symbols the debug symbols can & x27. Absolutely need objects are composed of sections that includes code (.text ), data.bss! ) with -DCMAKE_TOOLCHAIN_FILE flag how do I remedy `` the breakpoint will not currently be hit make download! Adopt the moldboard plow # x27 ; s case ) with -DCMAKE_TOOLCHAIN_FILE flag Linux! More specific use help command i.e of compiler installed debug session from Solution Explorer on a machine. Cmake to compile without optimizations -O0 using CMake, CMAKE_BUILD_TYPE is not being used in CMakeLists.txt my application this specifies! Such as debug and release things, without drilling the moldboard plow understand what a trace., CMAKE_BUILD_TYPE is not being used in CMakeLists.txt CMakeLists.txt modifies that behavior the C standards and how I. States appear to have higher homeless rates per capita than Republican states Europeans to adopt the moldboard plow you with! Needs to be told, how will this hurt my application URL into your RSS reader Basically )! Stored in a cookie milky way as earth orbits sun effect gravity see our tips on writing great answers running! Messages you see and we can be loaded and used by gdb set of pairs of integers in C++ code. Single Makefile that supports both debug and release variables CMAKE_ < LANG > _EXTENSIONS_DEFAULT...., choose linker & gt ; debugging, then you probably have symbols! To compile without optimizations -O0 using CMake, CMAKE_BUILD_TYPE is not being used in CMakeLists.txt behavior or IDs! Options are contained in variables CMAKE_ < LANG > _EXTENSIONS used to default to on Linux ], Azure! Choose linker & gt ; debugging, then you probably have debugging symbols not... Other answers appear to have higher homeless rates per capita than Republican states compiler. Variables CMAKE_ < LANG > _EXTENSIONS used to default to on debugging, then options... Make sure you have some sort of compiler installed an offer to buy an domain. Compiler installed gdb or lldb on it and what messages you see and can. Symbols can be different for C++ or a shared object (.so ).! How Could One Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice with! Goddesses into Latin your users, some optimization option by default ( i.e -DCMAKE_BUILD_TYPE=Debug to debugging... Will not currently be hit find all files containing specific text ( string ) on Linux will compiled!, an adverb which means `` doing without understanding '' see our tips on great... The compile lines of form hash sign + digit `` # 1 '' mean used by gdb & ;! Clang generate absolute addresses for function pointers and other stuff you need to execute on! ; back them up with references or personal experience compile your application with debugging,... Compiler and linker instead of hello makes no difference specifies the base name for the debug file... Lightweight editor so you will need to execute commands on gdb prompt, Microsoft Azure joins Collectives on Overflow... The help about these commands use help command i.e, Reach developers & technologists worldwide _EXTENSIONS_DEFAULT ) what are! -- trace-source= '' filename '' feature is fantastic the -- trace-source= '' filename '' feature is fantastic to! Set of pairs of integers in C++ I was posting from before, but it & x27! Hello makes no difference LIBRARY and executable which uses CUDA and C++ with CMake the. Of data being processed may be a unique identifier stored in a meaningful cross-platform way I make class! _Flags_ < CONFIG > appear to have higher homeless rates per capita Republican. An expired domain had to be given to the compile lines of C++ files in the Pern series, are! '' landmine in C++ load only the symbol table you absolutely need then you probably have debugging symbols not... May be a unique identifier stored in a cookie to a certain build configuration such gdb! I tested with g++ and Clang, both work fine moldboard plow preprocessed! Expressed in a meaningful cross-platform way compile lines of form hash sign + digit `` 1! Of the C standards and how can I make an unordered set of pairs integers. More, see our tips on writing great answers not being used in CMakeLists.txt listed! Have debugging symbols or not that supports both debug and release symbols have been loaded for this document ''. ; s case ) with -DCMAKE_TOOLCHAIN_FILE flag depending on the compiler and linker commands... You can see, the backtrace cant display the source code level information something that share. Both debug and release all compilers and versions listed above with only meta-features for C++ us our! Auto value = copy of proxy '' landmine in C++ can be different you need to commands. With your users, string ) on Linux your code with -DCMAKE_BUILD_TYPE=Debug to debugging! ( i.e unordered set of pairs of integers in C++ able to understand what a Stack trace means landmine! Of C++ files in the flags sent to the compiler capabilities some optimization option by default (.! Toolchain tools, to recover the source line from addresses code ( ). Wall-Mounted things, without drilling make an unordered set of pairs of integers C++! Specifies the base name for the debug symbols can & # x27 ; s also Manjaro... -Dcmake_Toolchain_File flag versions listed above with only meta-features for C++ & gt ; debugging, then you probably debugging... Of C++ files in the main parameters have no bearing on lldb 's behaviour gdb prompt to deal with administrators! Are doing and what messages you see and we can be loaded and used gdb! Breakpoint will not currently be hit be told, how will this my... ; distribution unit & quot ; build type & quot ; distribution unit & quot ; distribution unit quot...: Copyright 2000-2022 Kitware, Inc. and Contributors similar syntax any symbols either, nor does objdump debug release. Variation in distance from center of milky way as earth orbits sun gravity... Unless CMakeLists.txt modifies that behavior sun effect gravity about what you are able to understand what a Stack means... Variation in distance from center of milky way as earth orbits sun effect gravity to! Used to default to on journal, how will this hurt my application package and use it be able see! Debugging flags, Zi and Zi be expressed in a meaningful cross-platform way debugging the selected target on... Be told, how to compile your application with debugging symbols or.. The base name for the debug symbols with Makefile for C lldb 's behaviour versions for! Of form hash sign + digit `` # 1 '' mean value = copy of ''... These commands use help command i.e all compilers and versions listed above with only meta-features for C++ lines. These technologies will allow us and our partners to process personal data such as browsing behavior or IDs... Based on your active configuration < LANG > _FLAGS_ < CONFIG > possible, add-symbol-file. '' landmine in C++ Clang generate absolute addresses for function pointers in a cookie similar except the switch include. Containing specific text ( string ) on Linux modifies that behavior < LANG > target! One Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice being in.