Stack usage of ISR callstacks like rtems_clock_tick()

[Joel Sherrill]

AFAIK no one has computed it but 1K seems like more than enough. You would have the interrupt save frame plus maybe 4-5 methods deep.

Matthew J Fletcher <amimjf at gmail.com> wrote:



Hi,

Has the stack usage of rtems_clock_tick() ever been (roughly) computed at the maximum depth of the callstack ? the BSP's seem to vary quite a bit from 1k to 4k for the interrupt stacks.

A while back i used stackcheck.pl<http://stackcheck.pl> by Dan Kegel, http://www.kegel.com/stackcheck/ it gives you the stack usage of each function, but it would still be quite a bit of effort to add them up to the maximum depth.


regards
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Matthew J Fletcher

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