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adek at adek.io

2015-Jul-20 16:36 UTC

[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
>

Pete Cooper

2015-Jul-20 16:42 UTC

head link

[LLVMdev] CMake does not propagate flags to build

> On Jul 20, 2015, at 9:36 AM, adek at adek.io wrote:
> 
> 
> Hey Pete,
> 
> I also tried CMAKE_CXX_FLAGS_RELEASE
> with the same effect.Ah, thats me out of ideas :)

Can you post your full cmake invocation and maybe even the cmake log.  I don’t
know compiler-rt so i may not be any help, but other people who can help would
find that useful too.

Cheers,
Pete> 
> 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
>>

Chris Bieneman

2015-Jul-20 18:23 UTC

head link

[LLVMdev] CMake does not propagate flags to build

Adrian,

What makes you think CMAKE_CXX_FLAGS isn’t being respected?

The tests will always occur regardless of whether or not you set the CXX_FLAGS
explicitly.

-Chris
> On Jul 20, 2015, at 9:36 AM, adek at adek.io wrote:
> 
> 
> 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
>> 
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

Martin J. O'Riordan

2015-Jul-20 20:39 UTC

head link

[LLVMdev] CMake does not propagate flags to build

I regularly use '-DCMAKE_CXX_FLAGS' when configuring CLang/LLVM to
distinguish my builds (Alpha/Beta/Final) or to build custom versions, usually by
adding additional '-D' flags, but I discovered I had to add the
':STRING' qualifier to it when invoking 'cmake'.  With
'gmake' this is equivalent to '--with-extra-options="whatever
flags":

	-DCMAKE_CXX_FLAGS:STRING="whatever flags"

This works regardless of whether it is a Debug or Release build.

All the best,

	MartinO

-----Original Message-----
From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Chris Bieneman
Sent: 20 July 2015 19:23
To: adek at adek.io
Cc: llvmdev at cs.uiuc.edu
Subject: Re: [LLVMdev] CMake does not propagate flags to build

Adrian,

What makes you think CMAKE_CXX_FLAGS isn’t being respected?

The tests will always occur regardless of whether or not you set the CXX_FLAGS
explicitly.

-Chris
> On Jul 20, 2015, at 9:36 AM, adek at adek.io wrote:
> 
> 
> 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
>> 
> 
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

_______________________________________________
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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