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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-utrace.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-utrace.cxx')
-rw-r--r--tapset-utrace.cxx3
1 files changed, 3 insertions, 0 deletions
diff --git a/tapset-utrace.cxx b/tapset-utrace.cxx
index d2ce9dd7..4e98fbf6 100644
--- a/tapset-utrace.cxx
+++ b/tapset-utrace.cxx
@@ -118,6 +118,9 @@ utrace_derived_probe::utrace_derived_probe (systemtap_session &s,
has_path(hp), path(pn), pid(pd), flags(f),
target_symbol_seen(false)
{
+ if (s.kernel_config["CONFIG_UTRACE"] != string("y"))
+ throw semantic_error ("process probes not available without kernel CONFIG_UTRACE");
+
// Expand local variables in the probe body
utrace_var_expanding_visitor v (s, l, name, flags);
v.replace (this->body);