Date: Sun, 10 Jul 2011 20:17:12 -0500 From: Mark Tinguely <marktinguely@gmail.com> To: "Brian J. McGovern" <mcgovern@beta.com> Cc: freebsd-arm@freebsd.org Subject: Re: Suggestions for arm build for qemu? Message-ID: <4E1A4F18.5000802@gmail.com> In-Reply-To: <1310344111.1455.3.camel@bmcgover-laptop.beta.com> References: <20110708120025.5C94210656D9@hub.freebsd.org> <1310178351.5681.4.camel@bmcgover-laptop.beta.com> <4E18403C.8010203@gmail.com> <1310344111.1455.3.camel@bmcgover-laptop.beta.com>
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On 7/10/2011 7:28 PM, Brian J. McGovern wrote: > [trimmed] >> I had a problem starting the boot with GUMSTIX kernel and qemu. I >> finally traced it to the change in arm/arm/elf_trampoline.c revision >> 194609. I kept a copy of that file with that change, but manually >> added the changes that followed it. >> >> Also you need to disable the "ARM_CACHE_LOCK_ENABLE" option in >> arm/xscale/std.h because qemu does not emulate every feature of the >> GUMSTIX. >> >> --Mark Tinguely. >> >> . > Thanks. I'm still working with the 8.2 source in CVS. It sounds like I'm > going to have to catch up to -CURRENT. > > The 194609 change is also in FreeBSD 8.2 elf_trampoline.c. When it was in the kernel, qemu would just sit there in some loop. With option ARM_CACHE_LOCK_ENABLE compiled into the kernel, qemu will give an illegal instruction error. --Mark Tinguely
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