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Accessing kernel global variables
- From: Mike Mason <mmlnx at us dot ibm dot com>
- To: systemtap at sources dot redhat dot com
- Date: Wed, 10 Jan 2007 10:47:12 -0800
- Subject: Accessing kernel global variables
Is systemtap able to access global kernel variables in a probe? The buildok/seventeen.stp test is failing for me on both FC5 and SLES 10 on x86_64.
Mike
Error:
semantic error: libdwfl failure (dwfl_addrmodule): Operation not permitted: identifier '$write_fifo_fops' at seventeen.stp:8:19
buildok/seventeen.stp:
probe kernel.function("pipe_write")
{
printf("0x%x\n", $write_fifo_fops->llseek)
}