llvm dev - Jan 2019 - Problems trying to build LLVM

Hi, I am brand new to LLVM, or more precisely, trying to be. I'm getting
stuck on compiling LLVM.

- I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of some
large executables were killed by the OOM killer. I finally realized that I
needed to build using shared libraries, and succeeded. This was in November.

- I put aside my LLVM project, and just got back to it. I got stuck
compiling the Kaleidoscope demo, encountering this error:


/tmp/kal-2072b8.o:(.data._ZN4llvm30VerifyDisableABIBreakingChecksE+0x0):
undefined reference to `llvm::DisableABIBreakingChecks'

  This discussion, from this mailing list, points out that I need to build
LLVM with -DLLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING=OFF.

- So now I am trying to rebuild LLVM, and ran into a few new problems.
First, I discovered that I need the Z3 theorem prover. Unsure why this
problem did not show up before.  Second, I'm running into many errors like
this:

    CMake Error at cmake/modules/AddLLVM.cmake:570 (target_link_libraries):
      Attempt to add link library "clangAST" to target
"clangApplyReplacements"
      which is not built in this directory.
    Call Stack (most recent call first):
      tools/clang/cmake/modules/AddClang.cmake:86 (llvm_add_library)
      tools/extra/clang-apply-replacements/CMakeLists.txt:5
(add_clang_library)

Getting LLVM installed is proving much more problematic than I was
expecting, based on experience with many other open source projects. Can
someone give me a push in the right direction? I started with this
document: http://llvm.org/docs/GettingStarted.html, but found no guidance
about the problems with huge executables, advice about shared libraries,
etc.

Thanks.

Jack Orenstein
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On 01/08/2019 08:34 PM, Jack Orenstein via llvm-dev
wrote:
> Hi, I am brand new to LLVM, or more precisely, trying to be. I'm
getting stuck on compiling LLVM.
> 
> - I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of some
large executables were killed by the OOM killer. I finally realized that I
needed to build using shared libraries, and succeeded. This was in November.
> 
> - I put aside my LLVM project, and just got back to it. I got stuck
compiling the Kaleidoscope demo, encountering this error:
> 
>    
/tmp/kal-2072b8.o:(.data._ZN4llvm30VerifyDisableABIBreakingChecksE+0x0):
undefined reference to `llvm::DisableABIBreakingChecks'
> 
>   This discussion, from this mailing list, points out that I need to build
LLVM with -DLLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING=OFF.
> 
> - So now I am trying to rebuild LLVM, and ran into a few new problems.
First, I discovered that I need the Z3 theorem prover. Unsure why this problem
did not show up before.  Second, I'm running into many errors like this:
> 
>     CMake Error at cmake/modules/AddLLVM.cmake:570 (target_link_libraries):
>       Attempt to add link library "clangAST" to target
"clangApplyReplacements"
>       which is not built in this directory.
>     Call Stack (most recent call first):
>       tools/clang/cmake/modules/AddClang.cmake:86 (llvm_add_library)
>       tools/extra/clang-apply-replacements/CMakeLists.txt:5
(add_clang_library)
> 
> Getting LLVM installed is proving much more problematic than I was
expecting, based on experience with many other open source projects. Can someone
give me a push in the right direction? I started with this document:
http://llvm.org/docs/GettingStarted.html, but found no guidance about the
problems with huge executables, advice about shared libraries, etc.
> 
Hi,

I would recommend doing a clean build (i.e. delete your current build directory
or use a new one) of llvm and then post the cmake options you used if you
still have issues even with a clean build.

-Tom
> Thanks.
> 
> Jack Orenstein
> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>

Hi Jack,
I'm sure few weeks ago I had the same problem with DisableABI and if I
remember properly it was because I used different version of llvm-config
and clang or because I used the -I with a wrong path. Can you send us the
source code you are trying to compile and the command you use for compiling
it?

Thanks


On Wed, Jan 9, 2019, 04:35 Jack Orenstein via llvm-dev <
llvm-dev at lists.llvm.org wrote:
> Hi, I am brand new to LLVM, or more precisely, trying to be. I'm
getting
> stuck on compiling LLVM.
>
> - I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of
> some large executables were killed by the OOM killer. I finally realized
> that I needed to build using shared libraries, and succeeded. This was in
> November.
>
> - I put aside my LLVM project, and just got back to it. I got stuck
> compiling the Kaleidoscope demo, encountering this error:
>
>
> /tmp/kal-2072b8.o:(.data._ZN4llvm30VerifyDisableABIBreakingChecksE+0x0):
> undefined reference to `llvm::DisableABIBreakingChecks'
>
>   This discussion, from this mailing list, points out that I need to build
> LLVM with -DLLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING=OFF.
>
> - So now I am trying to rebuild LLVM, and ran into a few new problems.
> First, I discovered that I need the Z3 theorem prover. Unsure why this
> problem did not show up before.  Second, I'm running into many errors
like
> this:
>
>     CMake Error at cmake/modules/AddLLVM.cmake:570 (target_link_libraries):
>       Attempt to add link library "clangAST" to target
> "clangApplyReplacements"
>       which is not built in this directory.
>     Call Stack (most recent call first):
>       tools/clang/cmake/modules/AddClang.cmake:86 (llvm_add_library)
>       tools/extra/clang-apply-replacements/CMakeLists.txt:5
> (add_clang_library)
>
> Getting LLVM installed is proving much more problematic than I was
> expecting, based on experience with many other open source projects. Can
> someone give me a push in the right direction? I started with this
> document: http://llvm.org/docs/GettingStarted.html, but found no guidance
> about the problems with huge executables, advice about shared libraries,
> etc.
>
> Thanks.
>
> Jack Orenstein
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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Hi Jack,

None of the options you have mentioned are necessary, and neither is Z3.
As Tom said, try doing a clean build (IMO it’s easier with a monorepo) and post
exact commands you have used if it fails.

Sent from my iPhone
> On Jan 8, 2019, at 22:44, Tom Stellard via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
>> On 01/08/2019 08:34 PM, Jack Orenstein via llvm-dev wrote:
>> Hi, I am brand new to LLVM, or more precisely, trying to be. I'm
getting stuck on compiling LLVM.
>> 
>> - I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of
some large executables were killed by the OOM killer. I finally realized that I
needed to build using shared libraries, and succeeded. This was in November.
>> 
>> - I put aside my LLVM project, and just got back to it. I got stuck
compiling the Kaleidoscope demo, encountering this error:
>> 
>>   
/tmp/kal-2072b8.o:(.data._ZN4llvm30VerifyDisableABIBreakingChecksE+0x0):
undefined reference to `llvm::DisableABIBreakingChecks'
>> 
>>  This discussion, from this mailing list, points out that I need to
build LLVM with -DLLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING=OFF.
>> 
>> - So now I am trying to rebuild LLVM, and ran into a few new problems.
First, I discovered that I need the Z3 theorem prover. Unsure why this problem
did not show up before.  Second, I'm running into many errors like this:
>> 
>>    CMake Error at cmake/modules/AddLLVM.cmake:570
(target_link_libraries):
>>      Attempt to add link library "clangAST" to target
"clangApplyReplacements"
>>      which is not built in this directory.
>>    Call Stack (most recent call first):
>>      tools/clang/cmake/modules/AddClang.cmake:86 (llvm_add_library)
>>      tools/extra/clang-apply-replacements/CMakeLists.txt:5
(add_clang_library)
>> 
>> Getting LLVM installed is proving much more problematic than I was
expecting, based on experience with many other open source projects. Can someone
give me a push in the right direction? I started with this document:
http://llvm.org/docs/GettingStarted.html, but found no guidance about the
problems with huge executables, advice about shared libraries, etc.
>> 
> Hi,
> 
> I would recommend doing a clean build (i.e. delete your current build
directory
> or use a new one) of llvm and then post the cmake options you used if you
> still have issues even with a clean build.
> 
> -Tom
> 
>> Thanks.
>> 
>> Jack Orenstein
>> 
>> 
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev

Thank you for all the responses. I am going to start from scratch, trying a
release build and no other options, and work my way to trying the
Kaleidoscope demo again. I will post problems encountered, if any.

Jack

On Wed, Jan 9, 2019 at 1:56 AM Alberto Barbaro <barbaro.alberto at
gmail.com>
wrote:
> Hi Jack,
> I'm sure few weeks ago I had the same problem with DisableABI and if I
> remember properly it was because I used different version of llvm-config
> and clang or because I used the -I with a wrong path. Can you send us the
> source code you are trying to compile and the command you use for compiling
> it?
>
> Thanks
>
>
> On Wed, Jan 9, 2019, 04:35 Jack Orenstein via llvm-dev <
> llvm-dev at lists.llvm.org wrote:
>
>> Hi, I am brand new to LLVM, or more precisely, trying to be. I'm
getting
>> stuck on compiling LLVM.
>>
>> - I tried installing on a Mint 18.1 VM with 6GB RAM, and the builds of
>> some large executables were killed by the OOM killer. I finally
realized
>> that I needed to build using shared libraries, and succeeded. This was
in
>> November.
>>
>> - I put aside my LLVM project, and just got back to it. I got stuck
>> compiling the Kaleidoscope demo, encountering this error:
>>
>>
>>
/tmp/kal-2072b8.o:(.data._ZN4llvm30VerifyDisableABIBreakingChecksE+0x0):
>> undefined reference to `llvm::DisableABIBreakingChecks'
>>
>>   This discussion, from this mailing list, points out that I need to
>> build LLVM with -DLLVM_DISABLE_ABI_BREAKING_CHECKS_ENFORCING=OFF.
>>
>> - So now I am trying to rebuild LLVM, and ran into a few new problems.
>> First, I discovered that I need the Z3 theorem prover. Unsure why this
>> problem did not show up before.  Second, I'm running into many
errors like
>> this:
>>
>>     CMake Error at cmake/modules/AddLLVM.cmake:570
>> (target_link_libraries):
>>       Attempt to add link library "clangAST" to target
>> "clangApplyReplacements"
>>       which is not built in this directory.
>>     Call Stack (most recent call first):
>>       tools/clang/cmake/modules/AddClang.cmake:86 (llvm_add_library)
>>       tools/extra/clang-apply-replacements/CMakeLists.txt:5
>> (add_clang_library)
>>
>> Getting LLVM installed is proving much more problematic than I was
>> expecting, based on experience with many other open source projects.
Can
>> someone give me a push in the right direction? I started with this
>> document: http://llvm.org/docs/GettingStarted.html, but found no
>> guidance about the problems with huge executables, advice about shared
>> libraries, etc.
>>
>> Thanks.
>>
>> Jack Orenstein
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>
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