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authorFrank Ch. Eigler <fche@elastic.org>2009-10-08 17:36:36 -0400
committerFrank Ch. Eigler <fche@elastic.org>2009-10-08 17:36:36 -0400
commite34d5d1388d3c7817313685e3f7424ffc158474f (patch)
treeac39f35f47beae8d304e772f653f8d9331290670 /tapset-itrace.cxx
parent1beb508976ba5a79758ffe6e174f47a64225f449 (diff)
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PR10746: improve error message on utrace-less kernels
* tapset-itrace.exp (itrace_derived_probe ctor): Fail if !CONFIG_UTRACE. * tapset-utrace.exp (utrace_derived_probe ctor): Fail if !CONFIG_UTRACE. * tapsets.cxx (dwarf_builder::build): Fail process.* if !CONFIG_UTRACE. * testsuite/semko/utrace.stp: New test.
Diffstat (limited to 'tapset-itrace.cxx')
-rw-r--r--tapset-itrace.cxx2
1 files changed, 2 insertions, 0 deletions
diff --git a/tapset-itrace.cxx b/tapset-itrace.cxx
index 9fc59d42..84cfbf90 100644
--- a/tapset-itrace.cxx
+++ b/tapset-itrace.cxx
@@ -75,6 +75,8 @@ itrace_derived_probe::itrace_derived_probe (systemtap_session &s,
):
derived_probe(p, l), has_path(hp), path(pn), pid(pd), single_step(ss)
{
+ if (s.kernel_config["CONFIG_UTRACE"] != string("y"))
+ throw semantic_error ("process probes not available without kernel CONFIG_UTRACE");
}