Re: Bug#874674: ld: linking of llvm is failing on mipsel in _bfd_merged_section_offset

James Cowgill <[email protected]> Thu, 14 Sep 2017 14:17:49 +0100

Newsgroups	gmane.linux.debian.ports.mips
Message-ID	<[email protected]>

Hi,

On 08/09/17 16:28, Sylvestre Ledru wrote:
> Package: binutils
> Version: 2.29-9
> Severity: important
> 
> Dear Maintainer,
> 
> ld is failing on an internal error linking llvm.
> 
> See full log:
> https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-3.9&arch=mipsel&ver=1%3A3.9.1-13&stamp=1504838376&raw=0
> 
> 
> /<<PKGBUILDDIR>>/include/llvm/Support/Casting.h:183:72: warning:
> ignoring attributes on template argument 'llvm::simplify_t
> /usr/bin/ld: BFD (GNU Binutils for Debian) 2.29 internal error, aborting
> at ../../bfd/merge.c:908 in _bfd_merged_section_of
> 
> /usr/bin/ld: Please report this bug.

I think ld is running out of memory here. If I run ld in strace, a
number of mmaps fail with ENOMEM immediately before the internal error.

If I add this to the g++ invocation:
-Wl,--no-keep-memory -Wl,--reduce-memory-overhead

then it gets a bit further but now prints:
/usr/bin/ld: error: ../../lib/libLLVM-5.0.so.1(.debug_info) is too large (0x32bf8926 bytes)
/usr/bin/ld: error: ../../lib/libLLVM-5.0.so.1(.debug_str) is too large (0x470b1f9 bytes)
/usr/bin/ld: error: ../../lib/libLLVM-5.0.so.1(.debug_loc) is too large (0x4cbb86b bytes)

Maybe the amount of debug info is just too large for ld to handle? The
above sections add up to around 1GB.

Thanks,
James

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