CI: macOS Shared Lib by ax3l · Pull Request #1836 · AMReX-Codes/amrex

ax3l · 2021-03-04T02:31:57Z

Summary

CI for macOS: Build a shared library. This is the default in Spack.

I see issues with AppleClang 12.0 raising:

ld: can't use -undefined warning or suppress with -twolevel_namespace
clang: error: linker command failed with exit code 1 (use -v to see invocation)

@RemiLehe reported this again here: #425 (comment)

reproduce issue
add fix

Additional background

Introduced in 1b6af3c to fix #425

Checklist

The proposed changes:

fix a bug or incorrect behavior in AMReX
add new capabilities to AMReX
changes answers in the test suite to more than roundoff level
are likely to significantly affect the results of downstream AMReX users
are described in the proposed changes to the AMReX documentation, if appropriate

Build a shared library. This is the default in Spack. I see issues with AppleClang 12.0 raising: ``` ld: can't use -undefined warning or suppress with -twolevel_namespace ```

2nd build should speed up with this.

Tools/CMake/AMReX_Config.cmake

maybe with a leading underscore?

Tools/CMake/AMReX_Config.cmake

Src/Amr/AMReX_LevelBld.H

ax3l · 2021-03-04T20:38:06Z

Dang, what's the symbol name so I can put it on the command line to the linker

Undefined symbols for architecture x86_64:
  "getLevelBld()", referenced from:
      amrex::Amr::InitAmr() in AMReX_Amr.cpp.o
ld: symbol(s) not found for architecture x86_64

Tried so many variants now, probably need to mangle it or so.

Src/Amr/AMReX_LevelBld.H

Tools/CMake/AMReX_Config.cmake

Thanks wikipedia and godbolt!

Tools/CMake/AMReX_Config.cmake

ax3l requested a review from mic84 March 4, 2021 02:45

ax3l assigned mic84 Mar 4, 2021

ax3l requested a review from sayerhs March 4, 2021 02:46

ax3l added install bug labels Mar 4, 2021

ax3l requested a review from WeiqunZhang March 4, 2021 03:09

ax3l force-pushed the ci-macOSshared branch from 09b3500 to dcc4348 Compare March 4, 2021 04:38

ax3l mentioned this pull request Mar 4, 2021

Problem building AMReX as a shared library with CMake on MacOS #425

Closed

ax3l force-pushed the ci-macOSshared branch from dc2728c to dcc4348 Compare March 4, 2021 05:23

ax3l added the help wanted label Mar 4, 2021

ax3l added 3 commits March 3, 2021 23:40

CI: macOS Shared Lib

ff159b2

Build a shared library. This is the default in Spack. I see issues with AppleClang 12.0 raising: ``` ld: can't use -undefined warning or suppress with -twolevel_namespace ```

CI: macOS with CCache

c9832c8

2nd build should speed up with this.

AppleClang .dylib: Fix weak symbol

8150d7f

ax3l force-pushed the ci-macOSshared branch from e407b15 to 8150d7f Compare March 4, 2021 07:40