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Re: [PROGRAMMERING] [C] gdb - hvor er min .core fil henne?

In <sslug@sslug> Hans Schou <sslug@sslug> writes:

>Jeg har skrevet et C-program der har en periodisk fejl. Under normal 
>brug ses fejlen ca. 1 gang om ugen sådan ret uventet. Fejltypen er 
>Segmentation Fault (det' sgu pinligt).

>Så tænkte jeg at det måske var en idé at granske med gdb og så .core 
>dump fil, men sådan en har jeg ikke. Hvordan får jeg lavet sådan en?

Sørg for at checke med "ulimit -c" om der er grænser for en core-fils 
størrelse. Ofte er den default "0", hvilket gør at der ikke dannes nogen
core-fil.

Ellers så dannes core-filen i "current working directory". Så hvis du vil 
være sikker på hvor den havner henne, må du lægge en signal-handler ind
i programmet som laver en chdir("/tmp") f.eks. så de havner i /tmp når
du får en SIGSEGV, SIGBUS eller SIGABRT.


Henrik

 
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