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authorJan Stancek <jstancek@redhat.com>2015-09-02 10:19:17 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-09-14 12:50:13 -0300
commitfd405cf6cfddd300377bd5fd9b93d2ff66fbc32d (patch)
tree939fc643d75b2c5c8b535641c9df0f7fa22183ea /tools/perf/tests
parentedfdb7eab0fe5f98f2951598dc679b71bdb3e16b (diff)
downloadop-kernel-dev-fd405cf6cfddd300377bd5fd9b93d2ff66fbc32d.zip
op-kernel-dev-fd405cf6cfddd300377bd5fd9b93d2ff66fbc32d.tar.gz
perf tests: Print objdump/dso buffers if they don't match
Signed-off-by: Jan Stancek <jstancek@redhat.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/d0f42f786bc0e965918e0f422df25617a12a4021.1441181335.git.jstancek@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
-rw-r--r--tools/perf/tests/code-reading.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 8145c67..2d21183 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -162,6 +162,18 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf,
return ret;
}
+static void dump_buf(unsigned char *buf, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ pr_debug("0x%02x ", buf[i]);
+ if (i % 16 == 15)
+ pr_debug("\n");
+ }
+ pr_debug("\n");
+}
+
static int read_object_code(u64 addr, size_t len, u8 cpumode,
struct thread *thread, struct state *state)
{
@@ -264,6 +276,10 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
/* The results should be identical */
if (memcmp(buf1, buf2, len)) {
pr_debug("Bytes read differ from those read by objdump\n");
+ pr_debug("buf1 (dso):\n");
+ dump_buf(buf1, len);
+ pr_debug("buf2 (objdump):\n");
+ dump_buf(buf2, len);
return -1;
}
pr_debug("Bytes read match those read by objdump\n");
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