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January 09, 2018 Arch Linux ldc package can't use asan | ||||
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I don't know who's the current maintainer of the Arch Linux D packages. ldc1.7.0 from the Arch repositories doesn't work with -fsanitize=address right now, it fails to link. I originally filed an ldc bug here: https://github.com/ldc-developers/ldc/issues/2488 But it turns out that the pre-built version from dlang.org works fine, so I opened an Arch bug here: https://bugs.archlinux.org/task/57026 Atila |
January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Atila Neves | On Tuesday, 9 January 2018 at 15:19:37 UTC, Atila Neves wrote:
> I don't know who's the current maintainer of the Arch Linux D packages. ldc1.7.0 from the Arch repositories doesn't work with -fsanitize=address right now, it fails to link. I originally filed an ldc bug here:
I will look into this.
- Dan / The maintainer
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January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Wild | On Tuesday, 9 January 2018 at 15:27:56 UTC, Wild wrote:
> On Tuesday, 9 January 2018 at 15:19:37 UTC, Atila Neves wrote:
>> I don't know who's the current maintainer of the Arch Linux D packages. ldc1.7.0 from the Arch repositories doesn't work with -fsanitize=address right now, it fails to link. I originally filed an ldc bug here:
>
> I will look into this.
>
> - Dan / The maintainer
Grasping the occasion to thank you for your work maintaining it.
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January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Wild | On Tuesday, 9 January 2018 at 15:27:56 UTC, Wild wrote: > On Tuesday, 9 January 2018 at 15:19:37 UTC, Atila Neves wrote: >> I don't know who's the current maintainer of the Arch Linux D packages. ldc1.7.0 from the Arch repositories doesn't work with -fsanitize=address right now, it fails to link. I originally filed an ldc bug here: > > I will look into this. > > - Dan / The maintainer Thanks. The official package ships with a renamed copy of the LLVM compiler-rt library (matching the LLVM version LDC was built with), libldc_rt.asan-x86_64.a. If a copy is out of the question, a dependency on the package containing that lib (original name: libclang_rt.asan-x86_64.a) and a symlink may do the job. libFuzzer is handled like this as well. See https://github.com/ldc-developers/ldc/blob/v1.7.0/CMakeLists.txt#L742-L795. |
January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to kinke | On Tuesday, 9 January 2018 at 17:54:11 UTC, kinke wrote:
> Thanks. The official package ships with a renamed copy of the LLVM compiler-rt library (matching the LLVM version LDC was built with), libldc_rt.asan-x86_64.a. If a copy is out of the question, a dependency on the package containing that lib (original name: libclang_rt.asan-x86_64.a) and a symlink may do the job.
> libFuzzer is handled like this as well. See https://github.com/ldc-developers/ldc/blob/v1.7.0/CMakeLists.txt#L742-L795.
Thanks! Now I don't need track down what was missing.
Small question, is only *.a needed and not *.so?
- Dan
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January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to kinke | On Tuesday, 9 January 2018 at 17:54:11 UTC, kinke wrote:
> On Tuesday, 9 January 2018 at 15:27:56 UTC, Wild wrote:
>> On Tuesday, 9 January 2018 at 15:19:37 UTC, Atila Neves wrote:
>>> I don't know who's the current maintainer of the Arch Linux D packages. ldc1.7.0 from the Arch repositories doesn't work with -fsanitize=address right now, it fails to link. I originally filed an ldc bug here:
>>
>> I will look into this.
>>
>> - Dan / The maintainer
>
> Thanks. The official package ships with a renamed copy of the LLVM compiler-rt library (matching the LLVM version LDC was built with), libldc_rt.asan-x86_64.a. If a copy is out of the question, a dependency on the package containing that lib (original name: libclang_rt.asan-x86_64.a) and a symlink may do the job.
> libFuzzer is handled like this as well. See https://github.com/ldc-developers/ldc/blob/v1.7.0/CMakeLists.txt#L742-L795.
Extra info:
LDC should also recognize the libclang_rt.asan and libclang_rt.fuzzer libraries if they are in the same path where LDC would try to find the libldc copies. So the symlink is not even necessary in that case.
-Johan
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January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Johan Engelen | On Tuesday, 9 January 2018 at 18:28:46 UTC, Johan Engelen wrote: > Extra info: > LDC should also recognize the libclang_rt.asan and libclang_rt.fuzzer libraries if they are in the same path where LDC would try to find the libldc copies. So the symlink is not even necessary in that case. > > -Johan On Arch these files are stored in "/usr/lib/clang/5.0.1/lib/linux/", and the archlinux package tool doesn't like symlinks that point outside of the package. So a patch would be my only choice. So my solution is: sed -i "s/libclang_rt/clang\/$_llvmversion\/lib\/linux\/&/g" driver/linker-gcc.cpp Would be nice if a future version of ldc checked this directory, or if it would be possible to send in a constant to gnumake with this path. |
January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Wild | On Tuesday, 9 January 2018 at 20:43:05 UTC, Wild wrote: > On Arch these files are stored in "/usr/lib/clang/5.0.1/lib/linux/", > and the archlinux package tool doesn't like symlinks that point > outside of the package. So a patch would be my only choice. > > So my solution is: > sed -i "s/libclang_rt/clang\/$_llvmversion\/lib\/linux\/&/g" driver/linker-gcc.cpp > > Would be nice if a future version of ldc checked this directory, or > if it would be possible to send in a constant to gnumake with this path. The ldc-1:1.7.0-2 is now pushed and -fsanitize=address works, the -fsanitize=fuzzer option should work when this issue has been fixed: https://bugs.archlinux.org/task/56023 |
January 09, 2018 Re: Arch Linux ldc package can't use asan | ||||
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Posted in reply to Wild | On Tuesday, 9 January 2018 at 20:43:05 UTC, Wild wrote: > On Tuesday, 9 January 2018 at 18:28:46 UTC, Johan Engelen wrote: >> Extra info: >> LDC should also recognize the libclang_rt.asan and libclang_rt.fuzzer libraries if they are in the same path where LDC would try to find the libldc copies. So the symlink is not even necessary in that case. >> >> -Johan > > On Arch these files are stored in "/usr/lib/clang/5.0.1/lib/linux/", > and the archlinux package tool doesn't like symlinks that point > outside of the package. So a patch would be my only choice. > > So my solution is: > sed -i "s/libclang_rt/clang\/$_llvmversion\/lib\/linux\/&/g" driver/linker-gcc.cpp > > Would be nice if a future version of ldc checked this directory, or > if it would be possible to send in a constant to gnumake with this path. Yeah, I have this PR that I didn't look at for a while: https://github.com/ldc-developers/ldc/pull/2345 -Johan |
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