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From: ytomino <aghia05@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: -dead_strip and exception handling
Date: Thu, 25 Aug 2011 12:46:10 -0700 (PDT)
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Date: 2011-08-25T12:46:10-07:00
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I found something.

gcc-4.5 outputs labels of error frames (_funcname.eh).

gcc-4.6 does not output labels of error frames.

ld of leopard use labels of error frames to link __eh_frame section.
However, if without -dead_strip, ld links all contents of *.o. So it
works fine.

ld of snow leopard (or lion) is upgraded. it has been linked with
libunwind.
Probably it can find error frames without labels and output right
__eh_frame section.

As a result, only in case of combination "ld of leopard", "-
dead_strip" and "*.o output by gcc-4.6", exception handlers are
ignored.

Thank you.