Check C++ architectures with dumpbin.

2024-05-13 20:35 UTC gpt-4o Open in ChatGPT ↗

You

elseif(WIN32) # Add both 32-bit and 64-bit targets for Windows set(CMAKE_GENERATOR_PLATFORM x64) add_library(spotify_excel_test SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES})

set(CMAKE_GENERATOR_PLATFORM Win32)
add_library(spotify_excel_test_32 SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES})

endif()

is it true that the above cmake compiles 64bit and 32bit version of my c++ code?

how can i check it after build?

ChatGPT

Yes, the given CMake code snippet is intended to compile both 64-bit and 32-bit versions of your C++ code. Here’s a breakdown of how it works:

1. Set Platform to x64: The set(CMAKE_GENERATOR_PLATFORM x64) command sets the platform to 64-bit.
2. Add 64-bit Library: The add_library(spotify_excel_test SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES}) command creates a shared library (.dll on Windows) for the 64-bit version.
3. Set Platform to Win32: The set(CMAKE_GENERATOR_PLATFORM Win32) command changes the platform to 32-bit.
4. Add 32-bit Library: The add_library(spotify_excel_test_32 SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES}) command creates a shared library for the 32-bit version.

To verify that both 64-bit and 32-bit versions have been successfully built, follow these steps:

After Building

1. Build the Project: Run the CMake build command for your project. This might look something like this:

   cmake --build . --config Release

2. Check the Output Directory: After building, check the output directories for the generated libraries. The default directories might vary, but typically, they can be found under the Release or Debug folders inside your build directory.

Verifying the Architecture

To ensure the libraries are compiled for the correct architectures (32-bit and 64-bit), you can use tools like dumpbin or file.

Using dumpbin on Windows

dumpbin is a tool provided by Visual Studio to display information about binary files.

1. Open Developer Command Prompt: Open the “Developer Command Prompt for Visual Studio”.

2. Run dumpbin:

   dumpbin /headers path\to\spotify_excel_test.dll
   dumpbin /headers path\to\spotify_excel_test_32.dll

3. Check the Output: Look for the section in the output labeled “FILE HEADER VALUES”. In this section, you will find information like machine (x64) for 64-bit and machine (x86) for 32-bit.

Using file Command (for other platforms)

If you have file command available (commonly on Unix-based systems), you can use it to check the architecture:

file path/to/spotify_excel_test.dll
file path/to/spotify_excel_test_32.dll

The output will indicate whether the files are 32-bit or 64-bit.

Example Output Interpretation

• 64-bit Binary:

  FILE HEADER VALUES
    8664 machine (x64)
    ... other headers ...

• 32-bit Binary:

  FILE HEADER VALUES
    14C machine (x86)
    ... other headers ...

By checking the headers using these tools, you can confirm that your libraries have been compiled for the correct architectures.

You

this never produces 2 .dll files, why?

cmake_minimum_required(VERSION 3.26) project(spotify_excel_test)

set(CMAKE_CXX_STANDARD 20)

Common include directories

include_directories(include) include_directories(include/tinf)

Platform-specific setup

if(APPLE) set(CMAKE_OSX_ARCHITECTURES “x86_64;arm64” CACHE STRING “Build architectures for Mac OS X”) # macOS-specific include directories include_directories(include/MinXL) include_directories(include/MinXL/Core) include_directories(include/MinXL/Core/Implementation) include_directories(include/MinXL/Core/Interface)

# macOS-specific source files
set(MACOS_SOURCES
        include/MinXL/Core/Implementation/Array.hpp
        include/MinXL/Core/Implementation/String.hpp
        include/MinXL/Core/Implementation/Variant.hpp
        include/MinXL/Core/Interface/Array.hpp
        include/MinXL/Core/Interface/String.hpp
        include/MinXL/Core/Interface/Variant.hpp
        include/MinXL/Core/Common.hpp
        include/MinXL/Core/Exception.hpp
        include/MinXL/Core/Types.hpp
        include/MinXL/MinXL.hpp
        include/time.hpp
        time.cpp
)

elseif(WIN32) # Windows-specific include directory # Windows-specific source files

set(WINDOWS_SOURCES
)

endif()

Common source files

set(COMMON_SOURCES include/tinf/tinfgzip.c include/tinf/tinf.h include/tinf/adler32.c include/tinf/crc32.c include/tinf/tinflate.c include/tinf/tinfzlib.c

    include/base64_decode.h

    include/bitmaps.hpp
    include/cross_platform.h
    #include/PerlinNoise.h
    #include/proc_gen.hpp
    #include/test_functions.hpp

    bitmaps.cpp
    #PerlinNoise.cpp
    #proc_gen.cpp
    #test_functions.cpp

)

Combine common sources with platform-specific sources

if(APPLE) set(ULC_SOURCES ${COMMON_SOURCES} ${MACOS_SOURCES}) elseif(WIN32) set(ULC_SOURCES ${COMMON_SOURCES} ${WINDOWS_SOURCES}) endif()

if(APPLE)
add_library(spotify_excel_test SHARED ${ULC_SOURCES})

# Name of the dylib file after building
set(TARGET_DYLIB "libspotify_excel_test.dylib")

# Destination folder
set(DEPLOY_DIR "${CMAKE_SOURCE_DIR}/../../../../excel/mac/")

# Full path to the deployed dylib
set(DEPLOYED_DYLIB "${DEPLOY_DIR}/${TARGET_DYLIB}")

# Ensure the deploy directory exists
file(MAKE_DIRECTORY ${DEPLOY_DIR})

# Copy the dylib to the deploy directory after building
add_custom_command(TARGET spotify_excel_test POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy
        "$<TARGET_FILE:spotify_excel_test>"
        "${DEPLOYED_DYLIB}"
        COMMENT "Copying libspotify_excel_test.dylib to deploy directory"
)

Sign the dylib in its deployment location

add_custom_command(TARGET spotify_excel_test POST_BUILD

COMMAND chmod +x ”${DEPLOY_DIR}/sign_lib.sh”

COMMAND ”${DEPLOY_DIR}/sign_lib.sh” ”${DEPLOYED_DYLIB}“

WORKING_DIRECTORY ${DEPLOY_DIR}

COMMENT “Signing the dynamic library in deploy directory”)

    add_custom_command(TARGET spotify_excel_test POST_BUILD
    COMMAND chmod +x "${DEPLOY_DIR}/package_sign_notarize.sh"
    COMMAND "${DEPLOY_DIR}/package_sign_notarize.sh" "${DEPLOYED_DYLIB}"
    WORKING_DIRECTORY ${DEPLOY_DIR}
    COMMENT "Packaging and notarizing .dmg")

elseif(WIN32) # Add both 32-bit and 64-bit targets for Windows set(CMAKE_GENERATOR_PLATFORM x64) add_library(spotify_excel_test SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES})

set(CMAKE_GENERATOR_PLATFORM Win32)
add_library(spotify_excel_test_32 SHARED ${COMMON_SOURCES} ${WINDOWS_SOURCES})

endif()

ChatGPT

The issue you’re encountering is that CMake does not support changing the CMAKE_GENERATOR_PLATFORM midway through a script. Setting CMAKE_GENERATOR_PLATFORM affects the entire configuration process, and changing it after the initial configuration won’t have any effect.

To achieve the goal of building both 32-bit and 64-bit versions of your project on Windows, you can create two separate build directories and configure each one for a different architecture. Below is an example of how to modify your CMake script and the necessary commands to achieve this.

CMake Script Modification

First, ensure your CMake script is only responsible for defining the project structure and the source files, without attempting to set the CMAKE_GENERATOR_PLATFORM.

cmake_minimum_required(VERSION 3.26)
project(spotify_excel_test)

set(CMAKE_CXX_STANDARD 20)

# Common include directories
include_directories(include)
include_directories(include/tinf)

# Platform-specific setup
if(APPLE)
    set(CMAKE_OSX_ARCHITECTURES "x86_64;arm64" CACHE STRING "Build architectures for Mac OS X")
    include_directories(include/MinXL)
    include_directories(include/MinXL/Core)
    include_directories(include/MinXL/Core/Implementation)
    include_directories(include/MinXL/Core/Interface)

    set(MACOS_SOURCES
            include/MinXL/Core/Implementation/Array.hpp
            include/MinXL/Core/Implementation/String.hpp
            include/MinXL/Core/Implementation/Variant.hpp
            include/MinXL/Core/Interface/Array.hpp
            include/MinXL/Core/Interface/String.hpp
            include/MinXL/Core/Interface/Variant.hpp
            include/MinXL/Core/Common.hpp
            include/MinXL/Core/Exception.hpp
            include/MinXL/Core/Types.hpp
            include/MinXL/MinXL.hpp
            include/time.hpp
            time.cpp
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${MACOS_SOURCES})

elseif(WIN32)
    include_directories(include/WindowsSpecific)

    set(WINDOWS_SOURCES
        # Add your Windows-specific source files here
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${WINDOWS_SOURCES})
endif()

# Common source files
set(COMMON_SOURCES
        include/tinf/tinfgzip.c
        include/tinf/tinf.h
        include/tinf/adler32.c
        include/tinf/crc32.c
        include/tinf/tinflate.c
        include/tinf/tinfzlib.c

        include/base64_decode.h

        include/bitmaps.hpp
        include/cross_platform.h
        bitmaps.cpp
)

add_library(spotify_excel_test SHARED ${ULC_SOURCES})

if(APPLE)
    set(TARGET_DYLIB "libspotify_excel_test.dylib")
    set(DEPLOY_DIR "${CMAKE_SOURCE_DIR}/../../../../excel/mac/")
    set(DEPLOYED_DYLIB "${DEPLOY_DIR}/${TARGET_DYLIB}")
    file(MAKE_DIRECTORY ${DEPLOY_DIR})
    add_custom_command(TARGET spotify_excel_test POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy
            "$<TARGET_FILE:spotify_excel_test>"
            "${DEPLOYED_DYLIB}"
            COMMENT "Copying libspotify_excel_test.dylib to deploy directory"
    )

    add_custom_command(TARGET spotify_excel_test POST_BUILD
        COMMAND chmod +x "${DEPLOY_DIR}/package_sign_notarize.sh"
        COMMAND "${DEPLOY_DIR}/package_sign_notarize.sh" "${DEPLOYED_DYLIB}"
        WORKING_DIRECTORY ${DEPLOY_DIR}
        COMMENT "Packaging and notarizing .dmg")
endif()

Build Commands

Next, you need to create two separate build directories and configure each for the desired architecture. This is typically done in your build process, outside of the CMake script itself.

# Create build directory for 64-bit
mkdir build_x64
cd build_x64
cmake -A x64 ..
cmake --build . --config Release
cd ..

# Create build directory for 32-bit
mkdir build_x86
cd build_x86
cmake -A Win32 ..
cmake --build . --config Release
cd ..

Explanation

1. CMake Script: The CMake script now only defines the project, includes, and source files without attempting to set the CMAKE_GENERATOR_PLATFORM.
2. Separate Build Directories: You create two separate build directories: one for 64-bit and one for 32-bit. Each directory is configured with the appropriate platform using the -A option in the cmake command.
3. Build Commands: The cmake --build . --config Release command is used to build the project in each configuration.

By following this approach, you ensure that each build directory is properly configured for the desired architecture, and you will end up with two separate .dll files: one for 64-bit and one for 32-bit.

You

apparently the cmake doesnt makea 32bit

ChatGPT

If CMake is not producing a 32-bit build, it might be due to the way the build directories and configurations are being handled. To ensure CMake generates both 32-bit and 64-bit builds on Windows, you need to create separate build directories and specify the generator platform correctly for each build.

Here’s a step-by-step approach to achieve this:

Step 1: Modify the CMake Script

First, ensure your CMakeLists.txt file is set up to build the shared library without platform-specific configurations within the script itself:

cmake_minimum_required(VERSION 3.26)
project(spotify_excel_test)

set(CMAKE_CXX_STANDARD 20)

# Common include directories
include_directories(include)
include_directories(include/tinf)

# Common source files
set(COMMON_SOURCES
    include/tinf/tinfgzip.c
    include/tinf/tinf.h
    include/tinf/adler32.c
    include/tinf/crc32.c
    include/tinf/tinflate.c
    include/tinf/tinfzlib.c

    include/base64_decode.h

    include/bitmaps.hpp
    include/cross_platform.h
    bitmaps.cpp
)

if(APPLE)
    include_directories(include/MinXL)
    include_directories(include/MinXL/Core)
    include_directories(include/MinXL/Core/Implementation)
    include_directories(include/MinXL/Core/Interface)

    set(MACOS_SOURCES
        include/MinXL/Core/Implementation/Array.hpp
        include/MinXL/Core/Implementation/String.hpp
        include/MinXL/Core/Implementation/Variant.hpp
        include/MinXL/Core/Interface/Array.hpp
        include/MinXL/Core/Interface/String.hpp
        include/MinXL/Core/Interface/Variant.hpp
        include/MinXL/Core/Common.hpp
        include/MinXL/Core/Exception.hpp
        include/MinXL/Core/Types.hpp
        include/MinXL/MinXL.hpp
        include/time.hpp
        time.cpp
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${MACOS_SOURCES})
elseif(WIN32)
    include_directories(include/WindowsSpecific)

    set(WINDOWS_SOURCES
        # Add your Windows-specific source files here
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${WINDOWS_SOURCES})
endif()

add_library(spotify_excel_test SHARED ${ULC_SOURCES})

if(APPLE)
    set(TARGET_DYLIB "libspotify_excel_test.dylib")
    set(DEPLOY_DIR "${CMAKE_SOURCE_DIR}/../../../../excel/mac/")
    set(DEPLOYED_DYLIB "${DEPLOY_DIR}/${TARGET_DYLIB}")
    file(MAKE_DIRECTORY ${DEPLOY_DIR})
    add_custom_command(TARGET spotify_excel_test POST_BUILD
            COMMAND ${CMAKE_COMMAND} -E copy
            "$<TARGET_FILE:spotify_excel_test>"
            "${DEPLOYED_DYLIB}"
            COMMENT "Copying libspotify_excel_test.dylib to deploy directory"
    )

    add_custom_command(TARGET spotify_excel_test POST_BUILD
        COMMAND chmod +x "${DEPLOY_DIR}/package_sign_notarize.sh"
        COMMAND "${DEPLOY_DIR}/package_sign_notarize.sh" "${DEPLOYED_DYLIB}"
        WORKING_DIRECTORY ${DEPLOY_DIR}
        COMMENT "Packaging and notarizing .dmg")
endif()

Step 2: Build Commands

Next, you need to create separate build directories and configure each one for the desired architecture.

# Create and build the 64-bit version
mkdir build_x64
cd build_x64
cmake -G "Visual Studio 16 2019" -A x64 ..
cmake --build . --config Release
cd ..

# Create and build the 32-bit version
mkdir build_x86
cd build_x86
cmake -G "Visual Studio 16 2019" -A Win32 ..
cmake --build . --config Release
cd ..

Explanation

1. CMake Script: The script defines the project, includes, and source files without changing the CMAKE_GENERATOR_PLATFORM.
2. Separate Build Directories: Create two separate build directories: one for 64-bit (build_x64) and one for 32-bit (build_x86).
3. Specify Generator and Platform: Use the -G "Visual Studio 16 2019" and -A x64 or -A Win32 options to specify the generator and platform.
4. Build Each Configuration: Run the cmake --build . --config Release command to build the project in each configuration.

Additional Notes

• Ensure you have the correct version of Visual Studio installed and specified in the cmake -G command.
• Replace "Visual Studio 16 2019" with the version of Visual Studio you are using (e.g., "Visual Studio 17 2022").

This approach ensures that you get both 32-bit and 64-bit builds of your shared library.

You

automate this so that it runs when i press build in visual studio

Create build directory for 64-bit

mkdir build_x64 cd build_x64 cmake -A x64 .. cmake —build . —config Release cd ..

Create build directory for 32-bit

mkdir build_x86 cd build_x86 cmake -A Win32 .. cmake —build . —config Release cd ..

ChatGPT

To automate the process of building both 32-bit and 64-bit versions of your project in Visual Studio, you can use CMake’s capabilities to define multiple build targets within a single CMake project. This allows you to configure your CMakeLists.txt to support building both architectures and then use Visual Studio’s configuration management to trigger both builds.

Here’s how you can set this up:

Step 1: Modify CMakeLists.txt

First, update your CMakeLists.txt to create separate targets for 32-bit and 64-bit builds.

cmake_minimum_required(VERSION 3.26)
project(spotify_excel_test)

set(CMAKE_CXX_STANDARD 20)

# Common include directories
include_directories(include)
include_directories(include/tinf)

# Common source files
set(COMMON_SOURCES
    include/tinf/tinfgzip.c
    include/tinf/tinf.h
    include/tinf/adler32.c
    include/tinf/crc32.c
    include/tinf/tinflate.c
    include/tinf/tinfzlib.c

    include/base64_decode.h

    include/bitmaps.hpp
    include/cross_platform.h
    bitmaps.cpp
)

if(APPLE)
    include_directories(include/MinXL)
    include_directories(include/MinXL/Core)
    include_directories(include/MinXL/Core/Implementation)
    include_directories(include/MinXL/Core/Interface)

    set(MACOS_SOURCES
        include/MinXL/Core/Implementation/Array.hpp
        include/MinXL/Core/Implementation/String.hpp
        include/MinXL/Core/Implementation/Variant.hpp
        include/MinXL/Core/Interface/Array.hpp
        include/MinXL/Core/Interface/String.hpp
        include/MinXL/Core/Interface/Variant.hpp
        include/MinXL/Core/Common.hpp
        include/MinXL/Core/Exception.hpp
        include/MinXL/Core/Types.hpp
        include/MinXL/MinXL.hpp
        include/time.hpp
        time.cpp
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${MACOS_SOURCES})
    add_library(spotify_excel_test SHARED ${ULC_SOURCES})

    set(TARGET_DYLIB "libspotify_excel_test.dylib")
    set(DEPLOY_DIR "${CMAKE_SOURCE_DIR}/../../../../excel/mac/")
    set(DEPLOYED_DYLIB "${DEPLOY_DIR}/${TARGET_DYLIB}")
    file(MAKE_DIRECTORY ${DEPLOY_DIR})
    add_custom_command(TARGET spotify_excel_test POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy
        "$<TARGET_FILE:spotify_excel_test>"
        "${DEPLOYED_DYLIB}"
        COMMENT "Copying libspotify_excel_test.dylib to deploy directory"
    )

    add_custom_command(TARGET spotify_excel_test POST_BUILD
        COMMAND chmod +x "${DEPLOY_DIR}/package_sign_notarize.sh"
        COMMAND "${DEPLOY_DIR}/package_sign_notarize.sh" "${DEPLOYED_DYLIB}"
        WORKING_DIRECTORY ${DEPLOY_DIR}
        COMMENT "Packaging and notarizing .dmg")

elseif(WIN32)
    include_directories(include/WindowsSpecific)

    set(WINDOWS_SOURCES
        # Add your Windows-specific source files here
    )

    set(ULC_SOURCES ${COMMON_SOURCES} ${WINDOWS_SOURCES})

    add_library(spotify_excel_test SHARED ${ULC_SOURCES})

    # 64-bit target
    add_executable(spotify_excel_test_64 ${ULC_SOURCES})
    set_target_properties(spotify_excel_test_64 PROPERTIES COMPILE_FLAGS "/D_WIN64")
    set_target_properties(spotify_excel_test_64 PROPERTIES OUTPUT_NAME "spotify_excel_test_64")

    # 32-bit target
    add_executable(spotify_excel_test_32 ${ULC_SOURCES})
    set_target_properties(spotify_excel_test_32 PROPERTIES COMPILE_FLAGS "/D_WIN32")
    set_target_properties(spotify_excel_test_32 PROPERTIES OUTPUT_NAME "spotify_excel_test_32")
endif()

Step 2: Set Up Visual Studio Solution

1. Open the Solution in Visual Studio: Open your project in Visual Studio.
2. Configure Solution Platforms: Ensure that your solution is configured to build both 32-bit and 64-bit targets.
   • Go to Build > Configuration Manager.
   • Add new solution platforms if they do not exist:
     • For Active solution platform, select <New>.
     • Enter x64 and copy settings from Win32.
     • Repeat for Win32 if necessary.
3. Build Configuration: Ensure each configuration is set to build the corresponding target:
   • In the Configuration Manager, ensure that both spotify_excel_test_32 and spotify_excel_test_64 projects are included in the Release and Debug configurations.
   • Set spotify_excel_test_32 to build under the Win32 platform and spotify_excel_test_64 to build under the x64 platform.

Step 3: Automate the Build Process

To automate the build process within Visual Studio, you can use a custom build step or a script. However, Visual Studio’s native configuration management should handle building both architectures as long as they are set up correctly in the Configuration Manager.

Example Script for Manual Execution

If you prefer a script to automate this process manually, you can create a batch script as follows:

@echo off
setlocal

REM Define paths
set BUILD_DIR=%~dp0build
set BUILD_DIR_X64=%BUILD_DIR%_x64
set BUILD_DIR_X86=%BUILD_DIR%_x86

REM Create and build the 64-bit version
mkdir %BUILD_DIR_X64%
cd %BUILD_DIR_X64%
cmake -G "Visual Studio 16 2019" -A x64 %~dp0
cmake --build . --config Release
cd ..

REM Create and build the 32-bit version
mkdir %BUILD_DIR_X86%
cd %BUILD_DIR_X86%
cmake -G "Visual Studio 16 2019" -A Win32 %~dp0
cmake --build . --config Release
cd ..

endlocal

Final Notes

By configuring your CMakeLists.txt and Visual Studio solution as described, you can ensure that both 32-bit and 64-bit versions are built when you trigger a build in Visual Studio. The script provided can also be used to automate the process if needed manually.