Re: [avr-gcc-list] uisp with segmentation fault

[Christoph Plattner]

I have not seen it from the strace, but have you thouht about the fact,
that you MUST be `root' !!

The uisp uses the `ioperm' call to get access to the io-ports. This call
need's root priviledges. From strace I see, that you are the user "500"
not "0" !! (getuid !)

Switch to the user root and uisp will work.

With friendly regards
Christoph P.


Klaus Rudolph wrote:
> 
> Hi all,
> 
> i have a system with an older linux installation (suse 6.x) where a
> gcc 2.91 is installed. On an other linux box i have installed a
> 2.92.2 compiler. Here i compiled the uisp with the
> --static option to link it staticly. I copied this static uisp to
> my old box and there it crashes with segmentation fault.
> 
> with:
> strace -fo dump uisp -dstk200 --erase
> i got:
> 1419  execve("./uisp", ["uisp", "-dstk200", "--erase"], [/* 68 vars */])
> = 0
> 1419  fcntl(0, F_GETFD)                 = 0
> 1419  fcntl(1, F_GETFD)                 = 0
> 1419  fcntl(2, F_GETFD)                 = 0
> 1419  geteuid()                         = 500
> 1419  getuid()                          = 500
> 1419  getegid()                         = 100
> 1419  getgid()                          = 100
> 1419  brk(0)                            = 0x80a49d4
> 1419  brk(0x80a49f4)                    = 0x80a49f4
> 1419  brk(0x80a5000)                    = 0x80a5000
> 1419  getpid()                          = 1419
> 1419  --- SIGSEGV (Speicherzugriffsfehler) ---
> 1419  +++ killed by SIGSEGV +++
> ~
> 
> Any ideas? Is it not possible to link a source static and use it on an
> older box?
> 
> bye
> Klaus
> 
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