Date: Sat, 2 Mar 2013 16:16:22 -0700 From: Warner Losh <imp@bsdimp.com> To: Ian Lepore <ian@FreeBSD.org> Cc: freebsd-arm@FreeBSD.org, Ronald Klop <ronald-freebsd8@klop.yi.org> Subject: Re: ARM EABI test image Message-ID: <DB7E23AF-A082-43F4-97D3-4AF8B66D653D@bsdimp.com> In-Reply-To: <1362246830.1195.181.camel@revolution.hippie.lan> References: <20130302172556.5b59e122@bender> <op.wtbw52qc8527sy@pinky> <1362246830.1195.181.camel@revolution.hippie.lan>
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On Mar 2, 2013, at 10:53 AM, Ian Lepore wrote: > On Sat, 2013-03-02 at 18:21 +0100, Ronald Klop wrote: >> On Sat, 02 Mar 2013 05:25:56 +0100, Andrew Turner = <andrew@fubar.geek.nz> =20 >> wrote: >>=20 >>> Hello, >>>=20 >>> I have built an updated ARM EABI test image for Raspberry Pi [1]. >>>=20 >>> The only known issue is c++ exception handling is broken when >>> using in a dynamically linked executable. Static executables should >>> work with c++ exceptions. >>>=20 >>> To test it you will have to extract it using unxz and dd it to an sd >>> card, for example, with a USB to SD adapter on /dev/da0: >>> $ unxz bsd-pi-eabi-r247609.img.xz >>> $ dd if=3Dbsd-pi-eabi-r247609.img of=3D/dev/da0 >>>=20 >>> If you don't have a Raspberry Pi but would like to try it on your = board >>> you can add -DWITH_ARM_EABI to the make commands you use to build = and >>> install world and the kernel. >>=20 >> Is this also interesing on the older SHEEVAPLUG? >> If yes, I can test it somewhere next week. >>=20 >> Ronald. >=20 > As I understand it, the plan is that eventually everything is EABI, > including the older armv4/5 stuff, so that needs testing too. >=20 > You know what I haven't stumbled across yet is a simple explanation of > why EABI is better then OABI. I tried to search for some info the = other > day, but there are so many noise hits on the search I didn't find a > simple synopsis of differences or advantages. Alignment of structures is more like x86. This makes all the weird hacks = we have in the tree to support the old ABI obsolete, and makes all the = broken ones that we don't know about fixed. I'm sure there's a bunch more, but that's the main reason I want it :) Warner=
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