Problems during emulation with qemu

[bendavis78]

I'm not sure if this has been addressed yet, but I know raspbian includes this library and loads it by default. When using qemu to emulate a raspbian environment, you have to comment out the line in /etc/ld.so.preload that loads libcofi_rpi.so (any tutorial for using qemu-user with raspbian will tell you to do this).

Commenting out a line is easy enough, except that you have to remember to uncomment it when you're done working in the emulated environment.

Is there a way make this library qemu-safe?

[simonjhall]

What's the problem with it? There's nothing dodgy that it does - if there's an issue it should be fixed in qemu!
EDIT: do you have anything like a callstack or errors?

[bendavis78]

qemu segfualts, basically. I did see that there is a fork of qemu being worked on specifically for the rpi, so they may have a fix for it.

[simonjhall]

Interesting - would you happen to know of a qemu tracker where they might be looking into it? As I say, there's nothing dodgy in there. It's often that ARMv6 support is a bit patchy in many applications. Is this with JIT emulation? If so, can you try with the slow/reliable emulation?

[simonjhall]

Hi again - I've just dug this up: http://www.raspberrypi.org/forums/viewtopic.php?f=72&t=26561&start=50
They've taken my code and forked it, and added an extra function (memcmp). This is the function that is faulting. As the crash is a problem of qemu + their code, may I close this issue?

[bendavis78]

Ah OK, I have seen that thread. Yes go ahead and close, sorry for the
confusion.
On May 19, 2014 10:24 AM, "Simon Hall" notifications@github.com wrote:

Hi again - I've just dug this up:
http://www.raspberrypi.org/forums/viewtopic.php?f=72&t=26561&start=50
They've taken my code and forked it, and added an extra function (memcmp).
This is the function that is faulting. As the crash is a problem of qemu +
their code, may I close this issue?

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Reply to this email directly or view it on GitHubhttps://github.com//issues/4#issuecomment-43518194
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