On Wednesday 11 July 2007 7:17:28 am Blue Swirl wrote: > On 7/10/07, Rob Landley <[EMAIL PROTECTED]> wrote: > > On Tuesday 10 July 2007 14:30:38 Blue Swirl wrote: > > > > The sparc platform has a problem that if I boot with init as a "hello > > > > world" program everything behaves as expected (there are two in the > > > > image for testing purposes, /tools/bin/hello-dynamic and > > > > /tools/bin/hello-static). But if you boot with init=/tools/bin/bash > > > > it hangs. And so do the busybox shells. > > > > > > I think there is a problem with the dynamic loader, I get a bus error > > > when running the programs on real Sparc. > > > > Huh. That's odd because hello-dynamic is using the dynamic loader. > > (That's why there's a hello-dynamic and a hello-static.) > > > > It's entirely possibly that qemu and real sparc hardware are behaving > > differently, but I'm not seeing this bus error under qemu. (I haven't > > got real sparc hardware, so I can only debug against qemu...) > > Right. Debugging the problem I found out that in Qemu, 64-bit loads > and stores to unaligned addresses do not trigger any traps as they > should. I'll commit a fix soon. The problem is in uClibc ldso, there > is this kind of store.
I'll leave that to you. I can commit the patches to the uClibc repository if you can get them to me and confirm they work for you. (And get them added to the 0.9.29.1 patch list.) > On Sparc32 the correct page alignment is still 4096. Because of these > definitions, some code apparently tries to clear a 8k page, but only > 4k of memory is mapped. Hmmm... It's possible that "hello world" is working but nothing larger is just because it uses such small amounts of memory nothing ever crosses a page boundary, or gets aligned properly by accident... I look forward to a fix. It would be nice to add sparc to the "actually works" list. :) Rob -- "One of my most productive days was throwing away 1000 lines of code." - Ken Thompson. _______________________________________________ uClibc mailing list uClibc@uclibc.org http://busybox.net/cgi-bin/mailman/listinfo/uclibc
