r222393 - [CMake] Always include the Clang repo version, just like the autoconf build.

Zachary Turner zturner at google.com
Thu Nov 20 16:41:47 PST 2014


When I bulid on Ubuntu right now, ninja deadlocks while building clang.

I'm on Ubuntu 14.04 and I'm generating CMake as follows:

cmake -G Ninja -DCMAKE_CXX_COMPILER=clang -DCMAKE_C_COMPILER=clang
-DCMAKE_SHARED_LINKER_FLAGS="-lstdc++ -lm"
-DCMAKE_EXE_LINKER_FLAGS="-lstdc++ -lm"
-DCMAKE_INSTALL_PREFIX:PATH=`pwd`/../../install -DCMAKE_BUILD_TYPE=Debug
-Wno-dev ../..

When I run ninja with -v, it gets to Linking
libClangStaticAnalyzerFrontend.a, and then it just hangs.

If I Ctrl+C and then re-run ninja with -v, I see the following:

[1/51] cd ~/ssd/src/llvm/build/ninja/tools/clang/lib/Basic &&
/usr/bin/cmake -DFIRST_SOURCE_DIR=~/ssd/src/llvm -DFIRST_NAME=LLVM
-DSECOND_SOURCE_DIR=~/ssd/src/llvm/tools/clang -DSECOND_NAME=SVN
-DHEADER_FILE=~/src/llvm/build/ninja/tools/clang/lib/Basic/SVNVersion.inc
-P ~/ssd/src/llvm/cmake/modules/GetSVN.cmake

ps aux | grep cmake shows the following:

zturner  28671  0.0  0.0  24448  1212 pts/2    S    16:38   0:00 /bin/sh -c
cd ~/src/llvm/build/ninja/tools/clang/lib/Basic && /usr/bin/cmake
-DFIRST_SOURCE_DIR=~/ssd/src/llvm -DFIRST_NAME=LLVM
-DSECOND_SOURCE_DIR=~/ssd/src/llvm/tools/clang -DSECOND_NAME=SVN
-DHEADER_FILE=~/ssd/src/llvm/build/ninja/tools/clang/lib/Basic/SVNVersion.inc
-P ~/ssd/src/llvm/cmake/modules/GetSVN.cmake

zturner  28673  0.5  0.0 115752  5828 pts/2    S    16:38   0:00
/usr/bin/cmake -DFIRST_SOURCE_DIR=~/ssd/src/llvm -DFIRST_NAME=LLVM
-DSECOND_SOURCE_DIR=~/ssd/src/llvm/tools/clang -DSECOND_NAME=SVN
-DHEADER_FILE=~/ssd/src/llvm/build/ninja/tools/clang/lib/Basic/SVNVersion.inc
-P ~/ssd/src/llvm/cmake/modules/GetSVN.cmake

Let me know if you need more information or if you have any suggestions.


On Wed, Nov 19, 2014 at 5:28 PM, Jordan Rose <jordan_rose at apple.com> wrote:

> Yup, just found that described online. .svn/entries seems to be the 1.6
> version, .svn/wc.db the 1.7 one. As long as wc.db shows up first in the
> search, we should be good.
>
> Jordan
>
>
> On Nov 19, 2014, at 17:27, Nico Weber <thakis at chromium.org> wrote:
>
> .svn/wc.db seems to get updated on each `svn up` though. This is with
> "svn, version 1.7.17 (r1591372)" (which I think is the svn bundled with
> Xcode 6.1).
>
> On Wed, Nov 19, 2014 at 5:25 PM, Jordan Rose <jordan_rose at apple.com>
> wrote:
>
>> Shoot! And you actually got new revisions? Okay, will poke at this some
>> more tonight.
>>
>> Jordan
>>
>>
>> On Nov 19, 2014, at 17:24, Nico Weber <thakis at chromium.org> wrote:
>>
>> Nice!
>>
>> But .svn/entries doesn't seem to be touched when I `svn up` my llvm
>> checkout.
>>
>> On Wed, Nov 19, 2014 at 2:03 PM, Jordan Rose <jordan_rose at apple.com>
>> wrote:
>>
>>> Author: jrose
>>> Date: Wed Nov 19 16:03:48 2014
>>> New Revision: 222393
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=222393&view=rev
>>> Log:
>>> [CMake] Always include the Clang repo version, just like the autoconf
>>> build.
>>>
>>> Now that LLVM's helper script GetSVN.cmake actually works consistently,
>>> there's no reason not to use it. We avoid having to regenerate
>>> SVNVersion.inc
>>> every time by marking it as dependent on Git's reflog or SVN's entries
>>> file.
>>>
>>> This should end most of the issues of the AST format changing and
>>> breaking
>>> old module files: CMake-Clang should now detect that the version changed
>>> just
>>> like Autoconf-Clang has.
>>>
>>> Based on r190557. Depends on LLVM r222391.
>>>
>>> Modified:
>>>     cfe/trunk/lib/Basic/CMakeLists.txt
>>>
>>> Modified: cfe/trunk/lib/Basic/CMakeLists.txt
>>> URL:
>>> http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/CMakeLists.txt?rev=222393&r1=222392&r2=222393&view=diff
>>>
>>> ==============================================================================
>>> --- cfe/trunk/lib/Basic/CMakeLists.txt (original)
>>> +++ cfe/trunk/lib/Basic/CMakeLists.txt Wed Nov 19 16:03:48 2014
>>> @@ -4,6 +4,48 @@ set(LLVM_LINK_COMPONENTS
>>>    Support
>>>    )
>>>
>>> +# Figure out if we can track VC revisions.
>>> +function(find_first_existing_file out_var)
>>> +  foreach(file ${ARGN})
>>> +    if(EXISTS "${file}")
>>> +      set(${out_var} "${file}" PARENT_SCOPE)
>>> +      return()
>>> +    endif()
>>> +  endforeach()
>>> +endfunction()
>>> +
>>> +find_first_existing_file(llvm_vc
>>> +  "${LLVM_MAIN_SRC_DIR}/.git/logs/HEAD"
>>> +  "${LLVM_MAIN_SRC_DIR}/.svn/entries")
>>> +find_first_existing_file(clang_vc
>>> +  "${CLANG_SOURCE_DIR}/.git/logs/HEAD"
>>> +  "${CLANG_SOURCE_DIR}/.svn/entries")
>>> +
>>> +if(DEFINED llvm_vc AND DEFINED clang_vc)
>>> +  # Create custom target to generate the VC revision include.
>>> +  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
>>> +    DEPENDS "${llvm_vc}" "${clang_vc}"
>>> +    COMMAND
>>> +    ${CMAKE_COMMAND} "-DFIRST_SOURCE_DIR=${LLVM_MAIN_SRC_DIR}"
>>> +                     "-DFIRST_NAME=LLVM"
>>> +                     "-DSECOND_SOURCE_DIR=${CLANG_SOURCE_DIR}"
>>> +                     "-DSECOND_NAME=SVN"
>>> +
>>>  "-DHEADER_FILE=${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
>>> +                     -P
>>> "${LLVM_MAIN_SRC_DIR}/cmake/modules/GetSVN.cmake")
>>> +
>>> +  # Mark the generated header as being generated.
>>> +
>>> set_source_files_properties("${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc"
>>> +    PROPERTIES GENERATED TRUE
>>> +               HEADER_FILE_ONLY TRUE)
>>> +
>>> +  # Tell Version.cpp that it needs to build with -DHAVE_SVN_VERSION_INC.
>>> +  set_source_files_properties(Version.cpp
>>> +    PROPERTIES COMPILE_DEFINITIONS "HAVE_SVN_VERSION_INC")
>>> +  set(version_inc "${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc")
>>> +else()
>>> +  set(version_inc)
>>> +endif()
>>> +
>>>  add_clang_library(clangBasic
>>>    Attributes.cpp
>>>    Builtins.cpp
>>> @@ -29,30 +71,6 @@ add_clang_library(clangBasic
>>>    VersionTuple.cpp
>>>    VirtualFileSystem.cpp
>>>    Warnings.cpp
>>> +  ${version_inc}
>>>    )
>>>
>>> -# Determine Subversion revision.
>>> -# FIXME: This only gets updated when CMake is run, so this revision
>>> number
>>> -# may be out-of-date!
>>> -if( NOT IS_SYMLINK "${CLANG_SOURCE_DIR}" )  # See PR 8437
>>> -  find_package(Subversion)
>>> -endif()
>>> -if (Subversion_FOUND AND EXISTS "${CLANG_SOURCE_DIR}/.svn")
>>> -  set(FIRST_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
>>> -  set(FIRST_REPOSITORY LLVM_REPOSITORY)
>>> -  set(SECOND_SOURCE_DIR ${CLANG_SOURCE_DIR})
>>> -  set(SECOND_REPOSITORY SVN_REPOSITORY)
>>> -  set(HEADER_FILE ${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc)
>>> -  include(GetSVN)
>>> -
>>> -  # Mark the generated header as being generated.
>>> -  message(STATUS "Expecting header to go in
>>> ${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc")
>>> -  set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/SVNVersion.inc
>>> -    PROPERTIES GENERATED TRUE
>>> -               HEADER_FILE_ONLY TRUE)
>>> -
>>> -  # Tell Version.cpp that it needs to build with -DHAVE_SVN_VERSION_INC.
>>> -  set_source_files_properties(Version.cpp
>>> -    PROPERTIES COMPILE_DEFINITIONS "HAVE_SVN_VERSION_INC")
>>> -
>>> -endif()
>>>
>>>
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>>> cfe-commits at cs.uiuc.edu
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>>>
>>
>>
>>
>
>
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