perf tests: Add test for reading object code

Using the information in mmap events, perf tools can read object code associated with sampled addresses. A test is added that compares bytes read by perf with the same bytes read using objdump. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
chewitt · Aug 7, 2013 · b55ae0a · b55ae0a
1 parent 3445432
commit b55ae0a
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diff --git a/tools/perf/Makefile b/tools/perf/Makefile
@@ -392,6 +392,7 @@ LIB_OBJS += $(OUTPUT)tests/sw-clock.o
 ifeq ($(ARCH),x86)
 LIB_OBJS += $(OUTPUT)tests/perf-time-to-tsc.o
 endif
+LIB_OBJS += $(OUTPUT)tests/code-reading.o
 
 BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
 BUILTIN_OBJS += $(OUTPUT)builtin-bench.o

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
@@ -99,6 +99,10 @@ static struct test {
 		.func = test__perf_time_to_tsc,
 	},
 #endif
+	{
+		.desc = "Test object code reading",
+		.func = test__code_reading,
+	},
 	{
 		.func = NULL,
 	},