[llvm-dev] compiler-rt linking failure on linux-sparcv9

[John Paul Adrian Glaubitz via llvm-dev]

Hello!

On 10/21/20 8:19 PM, John Paul Adrian Glaubitz wrote:
> The build on linux-sparcv9 has recently started to fail with a linker failure that looks easy to
> fix but so far I've been unable to find out where to include the necessary -latomic [1]:

This was introduced by:

commit 3f7c3e84ad69f1ffa767b1b7ce3aa36de6c30f87 (refs/bisect/bad)
Author: Vitaly Buka <vitalybuka at google.com>
Date:   Thu Sep 10 19:59:31 2020 -0700

    [Asan] Fix __asan_update_allocation_context
    
    Update both thread and stack.
    Update thread and stack as atomic operation.
    Keep all 32bit of TID as now we have enough bits.
    
    Depends on D87135.
    
    Reviewed By: morehouse
    
    Differential Revision: https://reviews.llvm.org/D87217

Any suggestions on how to fix this? Passing -latomic for the offending linker command doesn't
help, unfortunately.

A Linux SPARC porterbox (which I used for bisecting this) is available in the GCC compile farm [1].

Adrian

> [1] https://gcc.gnu.org/wiki/CompileFarm

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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