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Date: Tue, 28 Apr 2015 11:45:25 +0300 (MSK)
From: Alexander Monakov <amonakov@...ras.ru>
To: Andre McCurdy <armccurdy@...il.com>
cc: musl@...ts.openwall.com
Subject: Re: [PATCH] force LTO to be disabled when compiling
 dlstart.lo

On Tue, 28 Apr 2015, Alexander Monakov wrote:
> For reference, with GCC 4.9 that uses linker plugin for LTO automatically, I
> get the following diagnostics:
> 
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.2/../../../../x86_64-pc-linux-gnu/bin/ld:
> error: /tmp/ccxxkwJ8.ltrans0.ltrans.o: requires dynamic R_X86_64_PC32 reloc
> against '_dlstart_c' which may overflow at runtime; recompile with -fPIC
> /tmp/ccxxkwJ8.ltrans0.ltrans.o(.text+0x12): error: undefined reference to
> '_dlstart_c'

Hm, I've just noticed Andre was using gcc 4.9.2 as well.  I get the same
diagnostics with BFD linker -- the diagnostics above are produced when using
the Gold linker.

Rich, do gold diagnostics help to see what musl might be doing to confuse
symbols dependencies resolution?

Alexander

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