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adek at adek.io

2015-Jul-18 03:41 UTC

[LLVMdev] CMake does not propagate flags to build

'-DCMAKE_CXX_FLAGS=-fno-omit-frame-pointer -Wno-maybe-uninitialized
-fPIC -fPIE'
-- The C compiler identification is GNU 4.8.1
-- The CXX compiler identification is GNU 4.8.1
-- Check for working C compiler:
/home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc
-- Check for working C compiler:
/home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc --
works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler:
/home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++
-- Check for working CXX compiler:
/home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++ --
works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PythonInterp:
/home/engshare/third-party2/python/2.7.5/centos6-native/da39a3e/bin/python2.7
(found version "2.7.5")
-- Looking for unwind.h
-- Looking for unwind.h - found
-- Performing Test COMPILER_RT_HAS_FPIC_FLAG
-- Performing Test COMPILER_RT_HAS_FPIC_FLAG - Success
-- Performing Test COMPILER_RT_HAS_FPIE_FLAG
-- Performing Test COMPILER_RT_HAS_FPIE_FLAG - Success
-- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG
-- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG - Success
-- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG
-- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG - Success
-- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG
-- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG - Success

Is it still related to this:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-March/071394.html


Adrian Zgorzałek

Pete Cooper

2015-Jul-20 16:34 UTC

head link

[LLVMdev] CMake does not propagate flags to build

Hi Adrian

I’m not sure if the CMAKE_CXX_FLAGS is used in LLVM.  We have our own flags for
different configurations.  I don’t remember if our ones inherit from
CMAKE_CXX_FLAGS or override it completely.  Anyway, they are:
- CMAKE_CXX_FLAGS_DEBUG
- CMAKE_CXX_FLAGS_MINSIZEREL
- CMAKE_CXX_FLAGS_RELEASE
- CMAKE_CXX_FLAGS_RELWITHDEBINFO

The one of those you get depends on what you set CMAKE_BUILD_TYPE to.  Options
are ‘Debug, Release, RelWithDebInfo, MinSizeRel’

Cheers,
Pete> On Jul 17, 2015, at 8:41 PM, adek at adek.io wrote:
> 
> '-DCMAKE_CXX_FLAGS=-fno-omit-frame-pointer -Wno-maybe-uninitialized
> -fPIC -fPIE'
> -- The C compiler identification is GNU 4.8.1
> -- The CXX compiler identification is GNU 4.8.1
> -- Check for working C compiler:
> /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc
> -- Check for working C compiler:
> /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc --
> works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Detecting C compile features
> -- Detecting C compile features - done
> -- Check for working CXX compiler:
> /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++
> -- Check for working CXX compiler:
> /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++ --
> works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- Found PythonInterp:
>
/home/engshare/third-party2/python/2.7.5/centos6-native/da39a3e/bin/python2.7
> (found version "2.7.5")
> -- Looking for unwind.h
> -- Looking for unwind.h - found
> -- Performing Test COMPILER_RT_HAS_FPIC_FLAG
> -- Performing Test COMPILER_RT_HAS_FPIC_FLAG - Success
> -- Performing Test COMPILER_RT_HAS_FPIE_FLAG
> -- Performing Test COMPILER_RT_HAS_FPIE_FLAG - Success
> -- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG
> -- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG - Success
> -- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG
> -- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG - Success
> -- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG
> -- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG - Success
> 
> Is it still related to this:
> http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-March/071394.html
> 
> 
> Adrian Zgorzałek
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

adek at adek.io

2015-Jul-20 16:36 UTC

head link

[LLVMdev] CMake does not propagate flags to build

Hey Pete,

I also tried CMAKE_CXX_FLAGS_RELEASE
with the same effect.

On Mon, Jul 20, 2015, at 09:34 AM, Pete Cooper wrote:> Hi Adrian
> 
> I’m not sure if the CMAKE_CXX_FLAGS is used in LLVM.  We have our own
> flags for different configurations.  I don’t remember if our ones inherit
> from CMAKE_CXX_FLAGS or override it completely.  Anyway, they are:
> - CMAKE_CXX_FLAGS_DEBUG
> - CMAKE_CXX_FLAGS_MINSIZEREL
> - CMAKE_CXX_FLAGS_RELEASE
> - CMAKE_CXX_FLAGS_RELWITHDEBINFO
> 
> The one of those you get depends on what you set CMAKE_BUILD_TYPE to. 
> Options are ‘Debug, Release, RelWithDebInfo, MinSizeRel’
> 
> Cheers,
> Pete
> > On Jul 17, 2015, at 8:41 PM, adek at adek.io wrote:
> > 
> > '-DCMAKE_CXX_FLAGS=-fno-omit-frame-pointer
-Wno-maybe-uninitialized
> > -fPIC -fPIE'
> > -- The C compiler identification is GNU 4.8.1
> > -- The CXX compiler identification is GNU 4.8.1
> > -- Check for working C compiler:
> > /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc
> > -- Check for working C compiler:
> > /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/gcc
--
> > works
> > -- Detecting C compiler ABI info
> > -- Detecting C compiler ABI info - done
> > -- Detecting C compile features
> > -- Detecting C compile features - done
> > -- Check for working CXX compiler:
> > /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++
> > -- Check for working CXX compiler:
> > /home/engshare/third-party2/gcc/4.8.1/centos6-native/cc6c9dc/bin/g++
--
> > works
> > -- Detecting CXX compiler ABI info
> > -- Detecting CXX compiler ABI info - done
> > -- Detecting CXX compile features
> > -- Detecting CXX compile features - done
> > -- Found PythonInterp:
> >
/home/engshare/third-party2/python/2.7.5/centos6-native/da39a3e/bin/python2.7
> > (found version "2.7.5")
> > -- Looking for unwind.h
> > -- Looking for unwind.h - found
> > -- Performing Test COMPILER_RT_HAS_FPIC_FLAG
> > -- Performing Test COMPILER_RT_HAS_FPIC_FLAG - Success
> > -- Performing Test COMPILER_RT_HAS_FPIE_FLAG
> > -- Performing Test COMPILER_RT_HAS_FPIE_FLAG - Success
> > -- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG
> > -- Performing Test COMPILER_RT_HAS_FNO_BUILTIN_FLAG - Success
> > -- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG
> > -- Performing Test COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG - Success
> > -- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG
> > -- Performing Test COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG - Success
> > 
> > Is it still related to this:
> > http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-March/071394.html
> > 
> > 
> > Adrian Zgorzałek
> > 
> > _______________________________________________
> > LLVM Developers mailing list
> > LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>

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