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author | Jan Stancek <jstancek@redhat.com> | 2016-01-12 13:07:44 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-08-02 22:42:51 +0300 |
commit | b2d0dbf09772d091368261ce95db3afce45d994d (patch) | |
tree | b9e5f6491e67bc8720a298d1f9647934653d5045 /net/switchdev | |
parent | b6f35ed774aeaf441e66cfa243fd1dff1321d69e (diff) | |
download | linux-b2d0dbf09772d091368261ce95db3afce45d994d.tar.xz |
perf tests: objdump output can contain multi byte chunks
objdump's raw insn output can vary across architectures on the number of
bytes per chunk (bpc) displayed and their endianness.
The code-reading test relied on reading objdump output as 1 bpc. Kaixu
Xia reported test failure on ARM64, where objdump displays 4 bpc:
70c48: f90027bf str xzr, [x29,#72]
70c4c: 91224000 add x0, x0, #0x890
70c50: f90023a0 str x0, [x29,#64]
This patch adds support to read raw insn output for any bpc length.
In case of 2+ bpc it also guesses objdump's display endian.
Reported-and-Tested-by: Kaixu Xia <xiakaixu@huawei.com>
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/07f0f7bcbda78deb423298708ef9b6a54d6b92bd.1452592712.git.jstancek@redhat.com
[ Fix up pr_fmt() call to use %zd for size_t variables, fixing the build on Ubuntu cross-compiling to armhf and ppc64 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'net/switchdev')
0 files changed, 0 insertions, 0 deletions