CoreSight

coresight@lists.linaro.org

4 participants
2845 discussions

[PATCH v2 0/3] perf: adds barrier FSYNC packet + raw trace dump

by Mike Leach

Adds in call to decode library to activate the barrier packet detection option. Adds in additional per trace source info to associate CS trace ID with incoming stream and dump ID info. Adds in compile time option to dump raw trace data and packed trace frames for debugging trace issues. Updates for v2: Per: mpoirier... 1/3 Update comment to explain FSYNC 4x flag. 2/3 Change to use struct list_head as base of list for trace IDs. Merge in change to "RESET DECODER" message from v1 3/3 patch. 3/3 Create init_raw func to combine conditionally compiled code into single block. Mike Leach (3): perf: cs-etm: Active barrier packet option in decoder. perf: cs-etm: Add channel context item to track packet sources. perf: cs-etm: Add options to log raw trace data for debug. tools/perf/Makefile.config | 6 ++ tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 122 +++++++++++++++++++++++- 2 files changed, 123 insertions(+), 5 deletions(-) -- 2.7.4

9 years, 2 months

[PATCH v2 0/9] Adds trace return stack handling to decoder library.

by Mike Leach

ETMv4 and PTM trace have a runtime option called "return stack". This is where the hardware saves potential return addresses from Branch+Link instructions onto a stack and uses the top of stack value if it matches for indirect branch instructions, rather than explicitly trace the branch value. This reduces the number of trace bytes in the stream. If this option is active then the decoder must mirror the return stack from BL instructions and use it when it would ordinarily expect an explicitly traced address on an indirect branch instruction. V2 changes: This set applies onto 0.6.1 of the master branch which contains a bugfix for the instruction follower branching from A32 to T32. Tests on mixed T32/A32 code showed an issue with the return stack push/pop not saving ISA state. This is now added. Mike Leach (9): opencsd: Add log message call to trace component base class. opencsd: new error type for return stack handling. opencsd: Add return stack object to library opencsd: Add return stack handling to PTM decoder opencsd: Add test trace snapshot for PTM return stack. opencsd: ETMv4 decoder: Implement trace return stack handling. opencsd: ETMv4 - juno add test snapshot for return stack testing opencsd: PTM test snapshot for return stack with A32 and T32 mixed code. opencsd: Update README and versions for v0.7 README.md | 15 +- decoder/build/linux/ref_trace_decode_lib/makefile | 1 + .../ref_trace_decode_lib.vcxproj | 2 + .../ref_trace_decode_lib.vcxproj.filters | 6 + decoder/include/common/trc_component.h | 8 + decoder/include/common/trc_ret_stack.h | 120 + decoder/include/etmv4/trc_pkt_decode_etmv4i.h | 5 + decoder/include/ocsd_if_types.h | 1 + decoder/include/ocsd_if_version.h | 6 +- decoder/include/ptm/trc_pkt_decode_ptm.h | 3 + decoder/source/etmv4/trc_pkt_decode_etmv4i.cpp | 66 +- decoder/source/ocsd_error.cpp | 1 + decoder/source/ptm/trc_pkt_decode_ptm.cpp | 51 +- decoder/source/trc_ret_stack.cpp | 122 + decoder/tests/snapshots/juno-ret-stck/cpu_0.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cpu_1.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cpu_2.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cpu_3.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cpu_4.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cpu_5.ini | 16 + decoder/tests/snapshots/juno-ret-stck/cstrace.bin | Bin 0 -> 65536 bytes .../tests/snapshots/juno-ret-stck/device_10.ini | 18 + .../tests/snapshots/juno-ret-stck/device_11.ini | 18 + decoder/tests/snapshots/juno-ret-stck/device_6.ini | 18 + decoder/tests/snapshots/juno-ret-stck/device_7.ini | 18 + decoder/tests/snapshots/juno-ret-stck/device_8.ini | 18 + decoder/tests/snapshots/juno-ret-stck/device_9.ini | 18 + .../tests/snapshots/juno-ret-stck/kernel_dump.bin | Bin 0 -> 7340032 bytes decoder/tests/snapshots/juno-ret-stck/snapshot.ini | 20 + decoder/tests/snapshots/juno-ret-stck/trace.ini | 23 + .../tests/snapshots/tc2-ptm-rstk-t32/PTM_0_2.bin | Bin 0 -> 27884 bytes .../tests/snapshots/tc2-ptm-rstk-t32/README.txt | 1 + .../tests/snapshots/tc2-ptm-rstk-t32/device1.ini | 357 + .../tests/snapshots/tc2-ptm-rstk-t32/device2.ini | 129 + .../tests/snapshots/tc2-ptm-rstk-t32/device3.ini | 129 + .../tests/snapshots/tc2-ptm-rstk-t32/device4.ini | 129 + .../tests/snapshots/tc2-ptm-rstk-t32/device5.ini | 89 + .../tests/snapshots/tc2-ptm-rstk-t32/device6.ini | 89 + .../tc2-ptm-rstk-t32/ds-5_trace_dump/a15_rs.txt | 10005 +++++++++++++++++++ .../mem_Cortex-A15_0_0_VECTORS.bin | Bin 0 -> 632 bytes .../mem_Cortex-A15_0_1_RO_CODE.bin | Bin 0 -> 6576 bytes .../mem_Cortex-A15_0_2_RO_DATA.bin | Bin 0 -> 304 bytes .../mem_Cortex-A15_0_3_RW_DATA.bin | Bin 0 -> 16 bytes .../mem_Cortex-A15_0_4_ZI_DATA.bin | Bin 0 -> 576 bytes .../mem_Cortex-A15_0_5_ARM_LIB_HEAP.bin | Bin 0 -> 262144 bytes .../mem_Cortex-A15_0_6_ARM_LIB_STACK.bin | Bin 0 -> 65536 bytes .../mem_Cortex-A15_0_7_IRQ_STACK.bin | Bin 0 -> 65536 bytes .../tc2-ptm-rstk-t32/mem_Cortex-A15_0_8_TTB.bin | Bin 0 -> 16384 bytes .../tests/snapshots/tc2-ptm-rstk-t32/snapshot.ini | 16 + decoder/tests/snapshots/tc2-ptm-rstk-t32/trace.ini | 24 + decoder/tests/snapshots/trace_cov_a15/PTM_0_2.bin | Bin 0 -> 36 bytes decoder/tests/snapshots/trace_cov_a15/README.txt | 1 + decoder/tests/snapshots/trace_cov_a15/device1.ini | 357 + decoder/tests/snapshots/trace_cov_a15/device2.ini | 129 + decoder/tests/snapshots/trace_cov_a15/device3.ini | 129 + decoder/tests/snapshots/trace_cov_a15/device4.ini | 129 + decoder/tests/snapshots/trace_cov_a15/device5.ini | 89 + decoder/tests/snapshots/trace_cov_a15/device6.ini | 89 + .../trace_cov_a15/mem_Cortex-A15_0_0_VECTORS.bin | Bin 0 -> 632 bytes .../trace_cov_a15/mem_Cortex-A15_0_1_RO_CODE.bin | Bin 0 -> 6576 bytes .../trace_cov_a15/mem_Cortex-A15_0_2_RO_DATA.bin | Bin 0 -> 304 bytes .../trace_cov_a15/mem_Cortex-A15_0_3_RW_DATA.bin | Bin 0 -> 16 bytes .../trace_cov_a15/mem_Cortex-A15_0_4_ZI_DATA.bin | Bin 0 -> 576 bytes .../mem_Cortex-A15_0_5_ARM_LIB_HEAP.bin | Bin 0 -> 262144 bytes .../mem_Cortex-A15_0_6_ARM_LIB_STACK.bin | Bin 0 -> 65536 bytes .../trace_cov_a15/mem_Cortex-A15_0_7_IRQ_STACK.bin | Bin 0 -> 65536 bytes .../trace_cov_a15/mem_Cortex-A15_0_8_TTB.bin | Bin 0 -> 16384 bytes decoder/tests/snapshots/trace_cov_a15/snapshot.ini | 16 + decoder/tests/snapshots/trace_cov_a15/trace.ini | 24 + 69 files changed, 12563 insertions(+), 22 deletions(-) create mode 100644 decoder/include/common/trc_ret_stack.h create mode 100644 decoder/source/trc_ret_stack.cpp create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_0.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_1.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_2.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_3.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_4.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cpu_5.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/cstrace.bin create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_10.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_11.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_6.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_7.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_8.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/device_9.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/kernel_dump.bin create mode 100644 decoder/tests/snapshots/juno-ret-stck/snapshot.ini create mode 100644 decoder/tests/snapshots/juno-ret-stck/trace.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/PTM_0_2.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/README.txt create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device1.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device2.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device3.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device4.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device5.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/device6.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/ds-5_trace_dump/a15_rs.txt create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_0_VECTORS.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_1_RO_CODE.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_2_RO_DATA.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_3_RW_DATA.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_4_ZI_DATA.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_5_ARM_LIB_HEAP.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_6_ARM_LIB_STACK.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_7_IRQ_STACK.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/mem_Cortex-A15_0_8_TTB.bin create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/snapshot.ini create mode 100644 decoder/tests/snapshots/tc2-ptm-rstk-t32/trace.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/PTM_0_2.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/README.txt create mode 100644 decoder/tests/snapshots/trace_cov_a15/device1.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/device2.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/device3.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/device4.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/device5.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/device6.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_0_VECTORS.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_1_RO_CODE.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_2_RO_DATA.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_3_RW_DATA.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_4_ZI_DATA.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_5_ARM_LIB_HEAP.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_6_ARM_LIB_STACK.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_7_IRQ_STACK.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/mem_Cortex-A15_0_8_TTB.bin create mode 100644 decoder/tests/snapshots/trace_cov_a15/snapshot.ini create mode 100644 decoder/tests/snapshots/trace_cov_a15/trace.ini -- 2.7.4

9 years, 2 months

[PATCH 0/8] Adds trace return stack handling to decoder library.

by Mike Leach

9 years, 2 months

[PATCH 0/3] perf: adds barrier FSYNC packet + raw trace dump

by Mike Leach

9 years, 2 months

[PATCH v2 0/6] coresight: barrier packet

by Mathieu Poirier

Hi Mike, Here is the second patchset that adds barrier packets to traces collected from ETB and ETR devices. It applies cleanly on top of perf-opencsd-master (4.12-rc1). Let me know how those work out for you. Thanks, Mathieu Mathieu Poirier (6): coresight: Correct buffer lost increment coresight: etf: Add barrier packet for synchronisation coresight: etb10: Remove useless conversion to LE coresight: etb10: Add barrier packet for synchronisation coresight: etr: Correct buffer lost increment coresight: etr: Add barrier packet for synchronisation drivers/hwtracing/coresight/coresight-etb10.c | 36 ++++++++++++++----------- drivers/hwtracing/coresight/coresight-priv.h | 2 ++ drivers/hwtracing/coresight/coresight-tmc-etf.c | 15 +++++++++-- drivers/hwtracing/coresight/coresight-tmc-etr.c | 15 +++++++++-- drivers/hwtracing/coresight/coresight.c | 8 ++++++ 5 files changed, 57 insertions(+), 19 deletions(-) -- 2.7.4

9 years, 3 months

[PATCH 00/11] OpenCSD v0.6 - barrier packet and debug updates

by Mike Leach

This patch set provides the following additional features:- i) Support for the FSYNC barrier packets inserted by perf. ii) Moves the packet printers from the test code into the main library to allow use by client programs. Additional APIs provided to create and use this packet printers. Plus additional minor fixes and docs changes. Mathieu Poirier (1): opencsd: update content to work with any kernel version Mike Leach (10): opencsd: remove deprecated C-API functions opencsd: Allow FSYNCs to be used as special frames. opencsd: Update message logger for string print callback. opencsd: Move packet printer classes from test code to main library. opencsd: Update C-API to for addtional features. opencsd: tests: Add command line print to test log opencsd: etmv4: Minor print string mod for trace info packet. opencsd: Update error logger interface. opencsd: Add packet printer API to decode tree and C-API opencsd: update README, HOWTO and versions for v0.6 HOWTO.md | 43 +- README.md | 4 +- TODO | 16 +- decoder/build/linux/makefile | 2 - decoder/build/linux/rctdl_c_api_lib/makefile | 1 - decoder/build/linux/ref_trace_decode_lib/makefile | 10 +- .../rctdl_c_api_lib/rctdl_c_api_lib.vcxproj | 2 - .../rctdl_c_api_lib.vcxproj.filters | 6 - .../ref_trace_decode_lib/ref_trace_decode_lib.sln | 21 - .../ref_trace_decode_lib.vcxproj | 8 + .../ref_trace_decode_lib.vcxproj.filters | 30 + decoder/include/c_api/ocsd_c_api_deprc_fn.h | 233 ------ decoder/include/c_api/ocsd_c_api_types.h | 2 + decoder/include/c_api/opencsd_c_api.h | 59 +- decoder/include/common/ocsd_dcd_tree.h | 18 +- decoder/include/common/ocsd_error_logger.h | 4 +- decoder/include/common/ocsd_msg_logger.h | 18 +- decoder/include/common/trc_frame_deformatter.h | 1 + decoder/include/common/trc_pkt_proc_base.h | 10 +- decoder/include/interfaces/trc_error_log_i.h | 3 + decoder/include/ocsd_if_types.h | 3 +- decoder/include/ocsd_if_version.h | 6 +- decoder/include/opencsd.h | 4 + decoder/include/pkt_printers/gen_elem_printer.h | 95 +++ decoder/include/pkt_printers/item_printer.h | 94 +++ decoder/include/pkt_printers/pkt_printer_t.h | 189 +++++ decoder/include/pkt_printers/raw_frame_printer.h | 69 ++ decoder/include/pkt_printers/trc_pkt_printers.h | 43 + decoder/include/pkt_printers/trc_print_fact.h | 60 ++ decoder/source/c_api/ocsd_c_api.cpp | 48 ++ decoder/source/c_api/ocsd_c_api_deprc_fn.cpp | 200 ----- decoder/source/c_api/ocsd_c_api_obj.h | 35 +- decoder/source/etmv4/trc_pkt_elem_etmv4i.cpp | 2 +- decoder/source/ocsd_dcd_tree.cpp | 111 ++- decoder/source/ocsd_msg_logger.cpp | 34 +- decoder/source/pkt_printers/raw_frame_printer.cpp | 104 +++ decoder/source/pkt_printers/trc_print_fact.cpp | 123 +++ decoder/source/trc_frame_deformatter.cpp | 108 ++- decoder/source/trc_frame_deformatter_impl.h | 3 +- .../build/linux/simple_pkt_print_c_api/makefile | 82 -- decoder/tests/build/linux/trc_pkt_lister/makefile | 3 +- .../simple_pkt_print_c_api.vcxproj | 333 -------- .../simple_pkt_print_c_api.vcxproj.filters | 22 - .../trc_pkt_lister/trc_pkt_lister.vcxproj | 6 +- .../trc_pkt_lister/trc_pkt_lister.vcxproj.filters | 14 +- decoder/tests/source/c_api_pkt_print_test.c | 100 ++- decoder/tests/source/gen_elem_printer.h | 96 --- decoder/tests/source/item_printer.h | 94 --- decoder/tests/source/pkt_printer_t.h | 188 ----- decoder/tests/source/raw_frame_printer.cpp | 96 --- decoder/tests/source/raw_frame_printer.h | 71 -- decoder/tests/source/simple_pkt_c_api.c | 923 --------------------- decoder/tests/source/trc_pkt_lister.cpp | 179 +--- 53 files changed, 1413 insertions(+), 2616 deletions(-) delete mode 100644 decoder/include/c_api/ocsd_c_api_deprc_fn.h create mode 100644 decoder/include/pkt_printers/gen_elem_printer.h create mode 100644 decoder/include/pkt_printers/item_printer.h create mode 100644 decoder/include/pkt_printers/pkt_printer_t.h create mode 100644 decoder/include/pkt_printers/raw_frame_printer.h create mode 100644 decoder/include/pkt_printers/trc_pkt_printers.h create mode 100644 decoder/include/pkt_printers/trc_print_fact.h delete mode 100644 decoder/source/c_api/ocsd_c_api_deprc_fn.cpp create mode 100644 decoder/source/pkt_printers/raw_frame_printer.cpp create mode 100644 decoder/source/pkt_printers/trc_print_fact.cpp delete mode 100644 decoder/tests/build/linux/simple_pkt_print_c_api/makefile delete mode 100644 decoder/tests/build/win-vs2015/simple_pkt_print_c_api/simple_pkt_print_c_api.vcxproj delete mode 100644 decoder/tests/build/win-vs2015/simple_pkt_print_c_api/simple_pkt_print_c_api.vcxproj.filters delete mode 100644 decoder/tests/source/gen_elem_printer.h delete mode 100644 decoder/tests/source/item_printer.h delete mode 100644 decoder/tests/source/pkt_printer_t.h delete mode 100644 decoder/tests/source/raw_frame_printer.cpp delete mode 100644 decoder/tests/source/raw_frame_printer.h delete mode 100644 decoder/tests/source/simple_pkt_c_api.c -- 2.7.4

9 years, 3 months

enabling coresight etm on hikey

by Sebastian Pop

Hi, we started looking at how to enable collection of branch traces with coresight etm on the hikey boards that are the reference platform for the android linux-4.9 work. Does somebody from Linaro have access to the description of where the coresight components are located for the hikey devices? We would appreciate help on enabling linux-perf collection of traces on the hikey. Thanks, Sebastian

9 years, 3 months

Re: [PATCH 2/2] perf tools: new inject capabilitity for CoreSight traces

by Kim Phillips

[re-adding cc list, assuming didn't hit reply-all?] On Tue, 14 Mar 2017 19:12:08 +0000 Mike Leach <mike.leach(a)linaro.org> wrote: > On 14 March 2017 at 16:10, Kim Phillips <kim.phillips(a)arm.com> wrote: > > > still results in: > > > > util/cs-etm.c:1466:27: error: ‘cs_etm_global_header_fmts’ defined but not > > used [-Werror=unused-const-variable=] > > static const char * const cs_etm_global_header_fmts[] = { > > ^~~~~~~~~~~~~~~~~~~~~~~~~ > > > > What toolchain and/or version are you using? > > > I'm using a linaro build of gcc 4.9. > > aarch64-linux-gnu-gcc (Linaro GCC 4.9-2015.05) 4.9.3 20150413 (prerelease) Linaro appear to have removed that release from their repo: http://releases.linaro.org/components/toolchain/binaries/ So I used this one - which AFAICT is the closest to your version - to cross-build both the kernel with your config, and perf: aarch64-linux-gnu-gcc (Linaro GCC 4.9-2016.02) 4.9.4 20151028 (prerelease) Building perf didn't require the patch I sent due to an old gcc bug that apparently finally got fixed recently: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=28901 I then ran the resulting kernel (which still had the extra patch, so commit 0d15341 == c50837 + the patch), and perf: root@juno:~# ./perf --version perf version 4.11.rc1.gc50837 root@juno:~# strings -a perf | grep "GCC: (" GCC: (Linaro GCC 4.9-2016.02) 4.9.4 20151028 (prerelease) root@juno:~# dmesg | grep gcc [ 0.000000] Linux version 4.11.0-rc1-g0d15341 (kim@dupont) (gcc version 4.9.4 20151028 (prerelease) (Linaro GCC 4.9-2016.02) ) #3 SMP PREEMPT Tue Mar 14 22:41:34 CDT 2017 root@juno:~# taskset -c 2 ./perf record -e cs_etm/(a)20070000.etr/u --per-thread taskset -c 2 uname [ 870.355660] coresight-replicator-qcom 20120000.replicator: REPLICATOR enabled [ 870.362736] coresight-funnel 20150000.funnel: FUNNEL inport 0 enabled [ 870.369127] coresight-tmc 20010000.etf: TMC-ETF enabled [ 870.374304] coresight-funnel 20040000.funnel: FUNNEL inport 0 enabled [ 870.380698] coresight-funnel 220c0000.funnel: FUNNEL inport 1 enabled [ 870.387858] coresight-funnel 220c0000.funnel: FUNNEL inport 1 disabled [ 870.394325] coresight-funnel 20040000.funnel: FUNNEL inport 0 disabled [ 870.400806] coresight-tmc 20010000.etf: TMC disabled [ 870.405722] coresight-funnel 20150000.funnel: FUNNEL inport 0 disabled [ 870.412184] coresight-replicator-qcom 20120000.replicator: REPLICATOR disabled [ 870.419350] coresight-tmc 20070000.etr: TMC-ETR disabled [ 870.425083] coresight-replicator-qcom 20120000.replicator: REPLICATOR enabled [ 870.432153] coresight-funnel 20150000.funnel: FUNNEL inport 0 enabled [ 870.438542] coresight-tmc 20010000.etf: TMC-ETF enabled [ 870.443718] coresight-funnel 20040000.funnel: FUNNEL inport 0 enabled [ 870.450112] coresight-funnel 220c0000.funnel: FUNNEL inport 1 enabled Linux [ 870.476156] coresight-funnel 220c0000.funnel: FUNNEL inport 1 disabled [ 870.482625] coresight-funnel 20040000.funnel: FUNNEL inport 0 disabled [ 870.489106] coresight-tmc 20010000.etf: TMC disabled [ 870.494023] coresight-funnel 20150000.funnel: FUNNEL inport 0 disabled [ 870.500485] coresight-replicator-qcom 20120000.replicator: REPLICATOR disabled [ 870.507651] coresight-tmc 20070000.etr: TMC-ETR disabled [ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.015 MB perf.data ] which appears to have worked the first time. Then I tried a second time - literally up-arrow, enter - and got the same exact hard hang as I get with the modern compilers the first time: root@juno:~# taskset -c 2 ./perf record -e cs_etm/(a)20070000.etr/u --per-thread taskset -c 2 uname [ 1965.355162] coresight-replicator-qcom 20120000.replicator: REPLICATOR enabled [ 1965.362238] coresight-funnel 20150000.funnel: FUNNEL inport 0 enabled [ 1965.368629] coresight-tmc 20010000.etf: TMC-ETF enabled [ 1965.373807] coresight-funnel 20040000.funnel: FUNNEL inport 0 enabled [ 1965.380201] coresight-funnel 220c0000.funnel: FUNNEL inport 1 enabled Linux [ 1965.405984] coresight-funnel 220c0000.funnel: FUNNEL inport 1 disabled [ 1965.412453] coresight-funnel 20040000.funnel: FUNNEL inport 0 disabled [ 1965.418934] coresight-tmc 20010000.etf: TMC disabled [ 1965.423850] coresight-funnel 20150000.funnel: FUNNEL inport 0 disabled [ 1965.430312] coresight-replicator-qcom 20120000.replicator: REPLICATOR disabled [ 1965.437478] coresight-tmc 20070000.etr: TMC-ETR disabled [ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote which is along the same instability lines as the other time that execution behaviour differed depending on whether it executed first or not... > > > > $ sudo taskset -c 2 ./perf record -e cs_etm/(a)20070000.etr/u > > --per-thread > > > taskset -c 2 uname > > > > failed to mmap with 12 (Cannot allocate memory) > > > > > > That said I get this too if I do enable sinks. However as you say after > > the > > > initial attempt the problem disappears. > > > > Right, at least we have one problem reproduced on both sides now. ...here. > > It hung before completing that last sentence. > > > > Perhaps the bug is exasperated by toolchain and/or host and target > > rootfs distribution differences? My juno target runs debian, and I > > recently upgraded to stretch in order to get a version of gcc that > > would support autoFDO. > > My juno is has a debian-jessie-developer root-fs from > http://releases.linaro.org/debian/images/developer-arm64/16.04/ > At present I cannot build autofdo - I still have some package issues, but > for perf and the kernel I am x-compiling on my ubuntu VM anyway, so the > installed compilers have no effect on the perf runs,. OK, can you try a more modern toolchain please? The one you're using isn't available anymore, AutoFDO requires gcc 5 and higher, and you're not seeing the build failures others see, but most importantly, it should make it easier to reproduce the hard lockup: at least that's the case on the Juno r2. Thanks, Kim

9 years, 3 months

Coresight ETM/STM trace

by Abhijit Dongre

Hi, We are running Coresight testcases in RTL simulation, and intend to decode the trace stored in ETF and Memory(through ETR). Came across OpenCSD library, Can this library be used in decoding of trace in RTL simulation? Note that in RTL simulations we don't use Linux and heavy software, we use bare minimum startup code for booting. If decoding is possible, please let us know procedure and pricing if any. Regards, Abhijit

9 years, 3 months

RE: Fr : CSAL library

by Mike Leach

Hi Karim, The CSAL library contains a number of readme files that should guide you in setting up your system for use with the library, plus a number of example applications. Start with the main README.md file in the root project directory. Run doxygen on the doxygen-config.txt file to build the library documentation - this will include all the readme files mentioned below. CSAL uses memory mapped IO to access the CoreSight components in linux, see readme_demos.md for further information. This file also contains instructions for setting up the library for specific platforms and running under linux. The first task is to create a registration function for your platform - look at the cs_demo_known_boards.c file. From there you should be able build the example programs. Csls is useful to use first as it will simply list the CoreSight components - which will verify if you have configured your system and the library correctly. Regards Mike > -----Original Message----- > From: Karim Lamouchi [mailto:lamouchi_karim@yahoo.fr] > Sent: 07 May 2017 11:27 > To: Mike Leach > Subject: Fr : CSAL library > > > Hello Mike, > > I'm trying to test CSAL library(coresight access library) under linux in > order to access and configure the arm coresight IP block within a new platform > based on 2 core A7 and 1 cortex M4. > In fact I want to extract the generated traces (without using an external > hardware) in order to decode them in the next step using the opencsd library . > > Could you please give me more details about how to use the CSAL > library and the differents steps that allow me to support it with the new > platform ? > > Is it possible to use this library without DS5? > > It is helpful to send me if you have any documents about this library. > > best regards, > Karim. IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.

9 years, 4 months

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