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Re: [PATCH roland/arm-mcount] ARM: Disable compat mcount code when unneeded.
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Roland McGrath <roland at hack dot frob dot com>
- Cc: <libc-ports at sourceware dot org>
- Date: Thu, 29 Aug 2013 12:22:07 +0000
- Subject: Re: [PATCH roland/arm-mcount] ARM: Disable compat mcount code when unneeded.
- Authentication-results: sourceware.org; auth=none
- References: <20130827173014 dot D264D2C097 at topped-with-meat dot com>
On Tue, 27 Aug 2013, Roland McGrath wrote:
> The obsolete _mcount entry point is not needed in a shared library not
> supporting any old ABIs. This change also makes it unavailable for static
> linking altogether. We have never supported linking old object files with
> new libraries, so that should not be a problem for existing configurations.
Isn't this about objects built with old compilers (before GCC 4.4, when
__gnu_mcount_nc was introduced; arm*-*-linux-gnueabi support was added in
4.1), which is generally supported, rather than objects built with old
library headers, which isn't?
--
Joseph S. Myers
joseph@codesourcery.com