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cec4dea4a3
Summary: Hello! This commit adds a LLVM-C target that is always built on MSVC. A big fat warning, this is my first cmake code ever so there is a fair bit of I-have-no-idea-what-I'm-doing going on here. Which is also why I placed it outside of llvm-shlib as I was afraid of breaking things of other people. Secondly llvm-shlib builds a LLVM.so which exports all symbols and then does a thin library that points to it, but on Windows we do not build a LLVM.dll so that would have complicated the code more. The patch includes a python script that calls dumpbin.exe to get all of the symbols from the built libraries. It then grabs all the symbols starting with LLVM and generates the export file from those. The export file is then used to create the library just like the LLVM-C that is built on darwin. Improvements that I need help with, to follow up this review. - Get cmake to make sure that dumpbin.exe is on the path and wire the full path to the script. - Use LLVM-C.dll when building llvm-c-test so we can verify that the symbols are exported. - Bundle the LLVM-C.dll with the windows installer. Why do this? I'm building a language frontend which is self-hosting, and on windows because of various tooling issues we have a problem of consuming the LLVM*.lib directly on windows. Me and the users of my projects using LLVM would be greatly helped by having LLVM-C.dll built and shipped by the Windows installer. Not only does LLVM takes forever to build, you have to run a extra python script in order to get the final DLL. Any comments, thoughts or help is greatly appreciated. Cheers, Jakob. Patch by: Wallbraker (Jakob Bornecrantz) Reviewers: compnerd, beanz, hans, smeenai Reviewed By: beanz Subscribers: xbolva00, bhelyer, Memnarch, rnk, fedor.sergeev, chapuni, smeenai, john.brawn, deadalnix, llvm-commits, mgorny Differential Revision: https://reviews.llvm.org/D35077 llvm-svn: 339151
60 lines
1.8 KiB
CMake
60 lines
1.8 KiB
CMake
# This file will recurse into all subdirectories that contain CMakeLists.txt
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# Setting variables that match the pattern LLVM_TOOL_{NAME}_BUILD to Off will
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# prevent traversing into a directory.
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#
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# The only tools that need to be explicitly added are ones that have explicit
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# ordering requirements.
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# Iterates all the subdirectories to create CMake options to enable/disable
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# traversing each directory.
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create_llvm_tool_options()
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# Build polly before the tools: the tools link against polly when
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# LINK_POLLY_INTO_TOOLS is set.
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if(WITH_POLLY)
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add_llvm_external_project(polly)
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else()
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set(LLVM_TOOL_POLLY_BUILD Off)
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endif()
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if(NOT LLVM_BUILD_LLVM_DYLIB AND NOT LLVM_BUILD_LLVM_C_DYLIB)
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set(LLVM_TOOL_LLVM_SHLIB_BUILD Off)
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endif()
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if(NOT LLVM_USE_INTEL_JITEVENTS )
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set(LLVM_TOOL_LLVM_JITLISTENER_BUILD Off)
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endif()
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if(CYGWIN OR NOT LLVM_ENABLE_PIC)
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set(LLVM_TOOL_LTO_BUILD Off)
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set(LLVM_TOOL_LLVM_LTO_BUILD Off)
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endif()
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# Add LTO, llvm-ar, llvm-config, and llvm-profdata before clang, ExternalProject
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# requires targets specified in DEPENDS to exist before the call to
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# ExternalProject_Add.
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add_llvm_tool_subdirectory(lto)
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add_llvm_tool_subdirectory(gold)
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add_llvm_tool_subdirectory(llvm-ar)
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add_llvm_tool_subdirectory(llvm-config)
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add_llvm_tool_subdirectory(llvm-lto)
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add_llvm_tool_subdirectory(llvm-profdata)
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# Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly
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# specified.
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add_llvm_external_project(clang)
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add_llvm_external_project(llgo)
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add_llvm_external_project(lld)
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add_llvm_external_project(lldb)
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# Automatically add remaining sub-directories containing a 'CMakeLists.txt'
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# file as external projects.
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add_llvm_implicit_projects()
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# Add subprojects specified using LLVM_EXTERNAL_PROJECTS
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foreach(p ${LLVM_EXTERNAL_PROJECTS})
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add_llvm_external_project(${p})
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endforeach(p)
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set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
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