Commit-ID: fd405cf6cfddd300377bd5fd9b93d2ff66fbc32d Gitweb: http://git.kernel.org/tip/fd405cf6cfddd300377bd5fd9b93d2ff66fbc32d Author: Jan Stancek <jstan...@redhat.com> AuthorDate: Wed, 2 Sep 2015 10:19:17 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 14 Sep 2015 12:50:13 -0300
perf tests: Print objdump/dso buffers if they don't match Signed-off-by: Jan Stancek <jstan...@redhat.com> Acked-by: Adrian Hunter <adrian.hun...@intel.com> Cc: Corey Ashford <cjash...@linux.vnet.ibm.com> Cc: David Ahern <dsah...@gmail.com> Cc: Frederic Weisbecker <fweis...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/d0f42f786bc0e965918e0f422df25617a12a4021.1441181335.git.jstan...@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/tests/code-reading.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) 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"); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
