[llvm-dev] Pardon the newbie question
pawel k. via llvm-dev
llvm-dev at lists.llvm.org
Thu Apr 15 14:43:33 PDT 2021
Hiya,
Enormous thanks for all suggests and extensive too. Testing splitdwarf
asap.
Makes me think what i thought previously. We need dwarf go pdbish way.
Separate dblike possibly adressable by url. I was hacking pdb techno before
it got sexy. I know a bit how it is organized and could try to help with
architecting or designing such solution. Loved dbinfo on vstudio. Gdbish
not so much. And i was slaving on my corpo cotton plantation passively
using gdb for about a decade.
If catches anyones focus, lets discuss the solution.
Best regards,
Pawel Kunio
czw., 15.04.2021, 23:37 użytkownik Min-Yih Hsu <minyihh at uci.edu> napisał:
> You can use `LLVM_USE_LINKER=lld` CMake variable to adopt LLD (to build
> LLVM). And yes, LLD takes less memory and runs faster. Here are some other
> tips to save memory:
> 1. You can use `LLVM_PARALLEL_LINK_JOBS=N` (also a cmake variable) to
> limit the amount of parallel linker jobs to save some memory.
>
> 2. Build libraries as shared library via `BUILD_SHARED_LIBS=ON` CMake
> variable can dramatically speed up the linking time and save you some
> memory.
>
> 3. Since you’re building a Debug build (and you’re building on Linux),
> `LLVM_USE_SPLIT_DWARF` can dramatically reduce the size of debug info,
> which, to some extend, also save you some memory during link time.
>
> Best,
> -Min
> > On Apr 15, 2021, at 1:05 PM, pawel k. via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
> >
> > Hello,
> > Im trying to build trunk clang in debug version on oldish ubuntu with
> low mem. Linking lli takes ages and fails on low mem. Is there a chance
> building would succeed if i used lld instead of ld? If so is there an
> option either to force lld or whole clang toolchain use in cmake instead of
> default gcc (both gcc and clang are avail on system)? Otherwise I think ill
> stick with release.
> >
> > Best regards,
> > Pawel Kunio
> > _______________________________________________
> > LLVM Developers mailing list
> > llvm-dev at lists.llvm.org
> > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
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