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Subject[PATCH 0/3] perf tools: Add support for ETMv3/PTM1.1 decoding
Date
This set adds support for ETMv3/PTM1.1 trace decoding.  The work has been
tested on TC2 and ST-Microelectronics' mp157c-ev1 board and applies cleanly
on 4.20-rc2 and Acme's perf/core branch [1].

*** Before this set ***

$ perf report --stdio
# To display the perf.data header info, please use --header/--header-only options.
#
DCD_ETMV4_0020 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
DCD_ETMV4_0022 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
DCD_ETMV4_0024 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
DCD_ETMV4_0020 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
DCD_ETMV4_0022 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
DCD_ETMV4_0024 : 0x0003 (OCSD_ERR_NOT_INIT) [Component not initialised.]; No decoder configuration information
Warning:
AUX data lost 2 times out of 2!

Error:
The perf.data file has no samples!

*** After this set ***

[...]

# Samples: 12K of event 'branches'
# Event count (approx.): 12049
#
# Children Self Command Shared Object Symbol
# ........ ........ ....... ................ .......................
#
28.18% 28.18% uname libc-2.19.so [.] strcmp
9.13% 9.13% uname libc-2.19.so [.] strcpy
7.87% 7.87% uname libc-2.19.so [.] strnlen
5.58% 5.58% uname libc-2.19.so [.] strlen
2.24% 2.24% uname libc-2.19.so [.] __rawmemchr
1.91% 1.91% uname ld-2.19.so [.] 0x000000000001156a
1.49% 1.49% uname libc-2.19.so [.] __argz_stringify
1.46% 1.46% uname libc-2.19.so [.] malloc
0.96% 0.96% uname libc-2.19.so [.] 0x0000000000054770
0.91% 0.91% uname libc-2.19.so [.] 0x000000000002430a
0.85% 0.85% uname ld-2.19.so [.] 0x0000000000007244
0.83% 0.83% uname libc-2.19.so [.] __stpcpy

[...]

Regards,
Mathieu

[1]. "6909b0a13389 perf stat: Use perf_evsel__is_clocki() for clock events"

Mathieu Poirier (3):
perf tools: Add configuration for ETMv3 trace protocol
perf tools: Add support for ETMv3 trace decoding
perf tools: Add support for PTMv1.1 decoding

tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 31 +++++++++++
tools/perf/util/cs-etm-decoder/cs-etm-decoder.h | 9 +++
tools/perf/util/cs-etm.c | 73 ++++++++++++++++++++-----
3 files changed, 99 insertions(+), 14 deletions(-)

--
2.7.4

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