From mboxrd@z Thu Jan 1 00:00:00 1970 From: Albert ARIBAUD Date: Sun, 14 Nov 2010 20:29:18 +0100 Subject: [U-Boot] RFC: Aligning arch initialisation sequences In-Reply-To: <20101114190611.5E33F14EA7E@gemini.denx.de> References: <4CD67A22.9040802@gmail.com> <201011091835.38581.vapier@gentoo.org> <4CDE1107.80108@gmail.com> <4CDE4A53.4070106@free.fr> <4CDE741C.1020507@gmail.com> <4CDF6F2E.9040900@gmail.com> <4CDF7821.4080300@gmail.com> <4CDFA8E9.3050803@free.fr> <20101114103001.7EE2014EA7E@gemini.denx.de> <4CDFD1AE.1070409@free.fr> <20101114150102.DAAF914EA7E@gemini.denx.de> <4CE0221A.7030502@free.fr> <20101114190611.5E33F14EA7E@gemini.denx.de> Message-ID: <4CE0388E.2070601@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Le 14/11/2010 20:06, Wolfgang Denk a ?crit : >> Alright, then I think we should document how we comply, or do not >> comply, with GNU EABI / AAPCS (maybe a README.arm that people could read > > Register use is documented in the top level README. My bad: I'd missed that one because I always go straight to the doc/ directory for documentation of this kind -- the root README I never read apart from the first few pages, and I would not have thought it to give this level of detail. BTW, a fix to this ./README is in order as GOT is not used any more with ELF ARM relocation, so r9 is not needed for this anymore... ... and even though I don't like the idea of reserving a register for gd, since we must for the moment, then using the (now available) r9 register would be *more* 'EABI/AAPCS-compliant' than using r8 (as I said, one could think of this use of r9 as 'our AAPCS variant'). Amicalement, -- Albert.