Mailing lists / fpc-pascal / 2008-02
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Hello,
my ARM-Linux board seems to be resistant against bus errors/misaligned data access or the compiler does some magic to prevent these ;-)
It would help me, to debug a program, when my board would abort with an error message, so that I can isolate the bug.
Does someone know, if there exists something like a Linux option do disable/enable data aborts?
Regards, Bernd.
Op Tue, 26 Feb 2008, schreef Bernd Mueller:
Hello, my ARM-Linux board seems to be resistant against bus errors/misaligned data access or the compiler does some magic to prevent these ;-)
Yes, the kernel "fixes" the unaligned access.
It would help me, to debug a program, when my board would abort with an error message, so that I can isolate the bug. Does someone know, if there exists something like a Linux option do disable/enable data aborts?
Yes, if you want signals, do:
echo 4 > /proc/cpu/alignment
... and your program should abort at any unaligned access.
Daniël
Daniël Mantione wroteecho 4 > /proc/cpu/alignment ... and your program should abort at any unaligned access.
Daniël, thank you very much.
Regards, Bernd.