From 70e6d6c94781870f7c11fb3cd62bd8ea69e91a85 Mon Sep 17 00:00:00 2001 From: "Frank Ch. Eigler" Date: Thu, 18 Mar 2010 09:35:28 -0400 Subject: PR909: store kernel exported symbols in session object * session.h (kernel_exports): New field. * main.cxx (parse_kernel_exports): Fill it. * tapset-perfmon.cxx (perf_builder::build): Check it for our pal perf_event_create_kernel_counter. --- tapset-perfmon.cxx | 2 ++ 1 file changed, 2 insertions(+) (limited to 'tapset-perfmon.cxx') diff --git a/tapset-perfmon.cxx b/tapset-perfmon.cxx index 81d6c2d7..9078dfd9 100644 --- a/tapset-perfmon.cxx +++ b/tapset-perfmon.cxx @@ -198,6 +198,8 @@ perf_builder::build(systemtap_session & sess, { // XXX need additional version checks too? // --- perhaps look for export of perf_event_create_kernel_counter + if (sess.kernel_exports.find("perf_event_create_kernel_counter") == sess.kernel_exports.end()) + throw semantic_error ("perf probes not available without exported perf_event_create_kernel_counter"); if (sess.kernel_config["CONFIG_PERF_EVENTS"] != "y") throw semantic_error ("perf probes not available without CONFIG_PERF_EVENTS"); -- cgit