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authorJiri Olsa <jolsa@redhat.com>2013-03-10 19:41:10 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-03-15 13:06:10 -0300
commit5a6bef47b418676546ab86d25631c3cfb9ffaf2a (patch)
treefe4a133db664100f4a0e463e192e4a09a845d3df /tools/perf/Makefile
parent45fa534cffb246872de0cb8af207bea4a09aeb2f (diff)
downloadvexpress-lsk-5a6bef47b418676546ab86d25631c3cfb9ffaf2a.tar.gz
perf tests: Test breakpoint overflow signal handler
Adding automated test for breakpoint event signal handler checking if it's executed properly. The test is related to the proper handling of the RF EFLAGS bit on x86_64, but it's generic for all archs. First we check the signal handler is properly called and that the following debug exception return to user space wouldn't trigger recursive breakpoint. This is related to x86_64 RF EFLAGS bit being managed in a wrong way. Second we check that we can set breakpoint in signal handler, which is not possible on x86_64 if the signal handler is executed with RF EFLAG set. This test is inpired by overflow tests done by Vince Weaver. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/1362940871-24486-6-git-send-email-jolsa@redhat.com [ committer note: s/pr_err/pr_debug/g i.e. print just OK or FAILED in non verbose mode ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile')
-rw-r--r--tools/perf/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 3dcd6273a90..21e0b4b0446 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -511,6 +511,7 @@ LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
LIB_OBJS += $(OUTPUT)tests/pmu.o
LIB_OBJS += $(OUTPUT)tests/hists_link.o
LIB_OBJS += $(OUTPUT)tests/python-use.o
+LIB_OBJS += $(OUTPUT)tests/bp_signal.o
BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
BUILTIN_OBJS += $(OUTPUT)builtin-bench.o