From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnout Vandecappelle Date: Sun, 20 Mar 2016 20:39:20 +0100 Subject: [Buildroot] [PATCH v2 08/17] uclibc: context functions are not Thumb-compatible In-Reply-To: <20160319190733.7d7c0535@free-electrons.com> References: <1458335299-27409-1-git-send-email-thomas.petazzoni@free-electrons.com> <1458335299-27409-9-git-send-email-thomas.petazzoni@free-electrons.com> <56ED7C39.6010104@mind.be> <20160319190733.7d7c0535@free-electrons.com> Message-ID: <56EEFC68.2030908@mind.be> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On 03/19/16 19:07, Thomas Petazzoni wrote: > Hello, > > On Sat, 19 Mar 2016 17:20:09 +0100, Arnout Vandecappelle wrote: [snip] >> uclibc: context functions are not Thumb-compatible >> >> On platforms that do support the ARM instruction set, there is no problem, as >> the context functions are built unconditionally in ARM mode. >> >> However, on platforms that only support the Thumb instruction set, the context >> functions cannot be built since the assembler code is not Thumb-ready. >> Therefore, these functions must be disabled. All Thumb1 platforms support ARM >> instructions, so this is only relevant for Thumb2 platforms (i.e., Cortex-M). > > I would do: "only relevant for Thumb2-only platforms". Cortex-A is a > Thumb2 platform, but does not have any problem as it also supports the > ARM instruction set. Right! Regards, Arnout -- Arnout Vandecappelle arnout at mind be Senior Embedded Software Architect +32-16-286500 Essensium/Mind http://www.mind.be G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle GPG fingerprint: 7493 020B C7E3 8618 8DEC 222C 82EB F404 F9AC 0DDF