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...than lld can fail gracefully or use annonymous > memory and a plain write instead of mmap for producing the output. > > Cheers, > Rafael > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171030/4c21b6e2/attachment.html>

If your system does not support fallocate(2), we use ftruncate(2) to create an output file. fallocate(2) succeeds even if your disk have less space than the requested size, because it creates a sparse file. If you mmap such sparse file, you'll receive a SIGBUS when the disk actually becomes full. So, lld can die suddenly with SIGBUS when your disk becomes full, and currently we are not doing