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Re: [PATCH][BZ #16159] Do not backtrace recursively.
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Thorsten Glaser <tg at debian dot org>
- Cc: <libc-alpha at sourceware dot org>
- Date: Tue, 19 Nov 2013 22:43:01 +0000
- Subject: Re: [PATCH][BZ #16159] Do not backtrace recursively.
- Authentication-results: sourceware.org; auth=none
- References: <20131114190329 dot GB26168 at domone dot podge> <loom dot 20131118T120309-727 at post dot gmane dot org>
On Mon, 18 Nov 2013, Thorsten Glaser wrote:
> m68k has a huge penalty for TLS (at least one syscall).
(a) I don't think backtrace is at all performance critical.
(b) m68k glibc includes vDSO support for faster TLS and atomic operations.
All that's needed is to get the kernel support (e.g.
<https://dev.openwrt.org/browser/trunk/target/linux/coldfire/patches/012-Add-vDSO-support-for-Coldfire-platform.patch?rev=31546>)
merged.
--
Joseph S. Myers
joseph@codesourcery.com