[Bug ld/17444] g++ tests g++.dg/ipa/pr61160-2.C and g++.dg/ipa/pr61160-3 fail on arm-none-linux-gnueabi with -mthumb

[nickc at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=17444

Nick Clifton <nickc at redhat dot com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED

--- Comment #3 from Nick Clifton <nickc at redhat dot com> ---
Hi Sandra,

  Thanks - I can now reproduce the problem.

  Interestingly this turns out to be a gas bug, not a linker bug.

  The problem is that the relocation generated by gas for the call to
...artificial_thunk.1 is wrong.  It has an offset of 0x14 built in to the
relocation when in fact it should be 0.  GAS is doing this because the
...artifical_thunk.1 symbol is a local symbol not a global symbol.  You can see
this for yourself by editing the pr61160-2.s file and adding the line:

  .global _ZThn4_N8CExample9MixinFuncEiPv.artificial_thunk.1

just after the function is declared.  Assembling and linking this version of
the pr61160-2.s file will result in a working binary.

  This is where I am currently stumped.  I do not see why GAS should be
treating a local function symbol any differently from a global function symbol. 

  Unfortunately the weekend is here and I have to drop this for now.  But I
will pick up the case again next week.

Cheers
  Nick

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