From: Richard Henderson <rth@redhat.com>
To: Michal Ludvig <mludvig@suse.cz>
Cc: gcc@gcc.gnu.org, gdb <gdb@sources.redhat.com>
Subject: Re: What is LSDA?
Date: Thu, 30 May 2002 03:12:00 -0000 [thread overview]
Message-ID: <20020530031226.B4984@redhat.com> (raw)
In-Reply-To: <3CF5D7D7.40107@suse.cz>; from mludvig@suse.cz on Thu, May 30, 2002 at 09:42:15AM +0200
On Thu, May 30, 2002 at 09:42:15AM +0200, Michal Ludvig wrote:
> What other differences can I expect between eh_frame and debug_frame?
> For now I handle both of them almost in the same way.
> Exceptions are: Different CIE-id, different way of finding the right CIE
> for a given FDE, and from now on ignoring LSDA in eh_frame.
> Is there something else?
The encoding of the addresses can be substantially different.
Pc-relative and base-relative are the popular ones. You'd
need target-specific hackery to know what the base address is
for the base-relative addresses.
That more and more differences crept in is the reason why we no
longer attempt to emit only one of .debug_frame or .eh_frame.
r~
prev parent reply other threads:[~2002-05-30 10:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-29 5:41 Michal Ludvig
2002-05-29 11:02 ` Richard Henderson
2002-05-29 11:03 ` Richard Henderson
2002-05-30 0:42 ` Michal Ludvig
2002-05-30 3:12 ` Richard Henderson [this message]
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