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Re: addr2line format specifiers

From: Roland McGrath <roland at hack dot frob dot com>
To: elfutils-devel at lists dot fedorahosted dot org
Date: Fri, 24 Feb 2012 13:41:09 -0800
Subject: Re: addr2line format specifiers

The older GNU extension is %as or %a[ and %ms/%m[ was added after C99
usurped %a.  Newer GNU implementations support both in that %a is a flag if
followed by s or [ and a specifier otherwise.  Hence the code is correct
for portability to both old and new GNU C libraries.

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