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    SubjectRe: Generating a function call trace
    On Fri, 30 Nov 2001, Brian Gerst wrote:

    > Davide Libenzi wrote:
    > >
    > > On Fri, 30 Nov 2001, Simon Turvey wrote:
    > >
    > > > Is it possible to arbitrarily generate (in a module say) a function call
    > > > trace?
    > >
    > > gcc has builtin macros to trace back or ( on x86 ) you can simply chain
    > > through %esp/%ebp
    >
    > That only works if you compile with frame pointers, which the kernel
    > turns off for performance reasons (due to register pressure on the x86).

    I thought it was a general question not a kernel code one.
    Sure -fomit-frame-pointer is on inside the kernel.




    - Davide


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