Subject:
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Re: RCX "locking up" when trying to use dll
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Tue, 11 Jan 2000 04:21:54 GMT
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Viewed:
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1249 times
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In lugnet.robotics.rcx.legos, Martin Cornelius writes:
> Benjamin Montgomery wrote:
> > Has anyone experienced the RCX "locking up" when trying to use dll? When I
> > try to download a .lx file with dll, the brick freezes. It won't respond to
> > any buttons and I have to take the batteries out and re-load the firmware.
I am seeing exactly the same thing when I built my own legOS.srec from
scratch. The kernel seems to run fine (view, on/off, prgm, run buttons) until
dll crashes it.
> i experienced exactly the same behaviour when i tried to use gcc-2.95.2
> as cross-compiler. If that's the compiler you're using: switch to
> egcs-1.1.2
Auugh, I too am using gcc-2.95.2. If I use legOS.srec/.lds from the 0.2.3
distribution I can rebuild the stuff in demo with the gcc-2.95.2 toolchain and
it works fine. I just can't make a working kernel.
Is there a better explanation for this than 'install egcs-1.1.2'? egcs 1.1.2
is older than 2.95.2. Was a regression introduced?
> This file contains symbol-address mappings of the kernel that are
> used for building dynamic executables. If the legOS.lds used for linking
> your application is not exactly the same than what was produced when you
> built the kernel you're running, your program will crash legOS.
This is definitely a different symptom. If you run dll -v you can see that the
RCX hangs immediately after "delete program" and never responds.
--Ben
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Message has 2 Replies:
 | | Re: RCX "locking up" when trying to use dll
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| (...) unfortunately not. AFAIK, nobody has ever managed to compile a dll-capable legOS with gcc-2.95.x, neither with the rcx-compiler patch nor without. (...) Sure, this is exactly the gcc-2.95.2 symptom many people already experienced. There has (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
| | | Re: RCX "locking up" when trying to use dll
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| Ben Jackson schrieb: (...) Some parts of legOS, especially the interrupt handlers, are less portable than they should be - they use some assembly, or my attribute((rcx_interrupt)) which I haven't verified with 2.95.2. (...) Sounds like a problem (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: RCX "locking up" when trying to use dll
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| (...) i experienced exactly the same behaviour when i tried to use gcc-2.95.2 as cross-compiler. If that's the compiler you're using: switch to egcs-1.1.2 Another circumstance under which this will happen: You compiled the binary against another (...) (25 years ago, 3-Jan-00, to lugnet.robotics.rcx.legos)
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