[PATCH] Support multiple .eh_frame sections

[Nick Clifton]

Hi Jojo,

> 	This patch is based on MULTIPLE_FRAME_SECTIONS and EH_FRAME_LINKONCE, > 	it allows backend to enable this feature and use '--gc-sections' simply.
This patch looks good to me.  But there are two issues, one small, one major:

* The small issue is that you need to add an entry to the gas/doc/internals.texi
describing the new TARGET_MULTIPLE_EH_FRAME_SECTIONS macro.  (I know that the
name is basically self-describing, but it is nice to keep the documentation
accurate).

* The bigger issue is that I could not find a FSF copyright assignment under
your name, or for Alibaba.  We would need such an assignment before we could
accept your patch.  (Note - I did find an assignment for Alibaba contributions
to gcc, so I would assume that obtaining a similar assignment for the binutils
should not be too difficult).

Cheers
   Nick