CoreSight November 2016

coresight@lists.linaro.org

6 participants
9 discussions

Re: CoreSight post from yan_lin_aung@yahoo.com requires approval

by Mathieu Poirier

On 11 November 2016 at 06:45, Yan Lin Aung <yan_lin_aung(a)yahoo.com> wrote: > Hi Mathieu, > > I have made progress with getting things up. > > I now switched to another platform with quad-core A53 processors because > the Juno r2 environment is a bit difficult for me to work with. > > The following describes the steps taken: > > 1) I have Linux 4.4.23 running on quad-core A53. CoreSight is enabled. > I can see CoreSight components under "/sys/bus/coresight/devices" > > linaro@linaro-alip:~/OpenCSD-perf-opencsd-4.9-rc1/tools/perf$ ls > /sys/bus/coresight/devices/ > 820000.tpiu 821000.funnel 824000.replicator 825000.etf 826000.etr > 841000.funnel 85c000.etm 85d000.etm 85e000.etm 85f000.etm > > > I can enable/disable ETM and ETR (e.g. echo 1 > 85c000.etm/enable_source, > cat 85c000.etm/enable_source). Ok, but that is not required since identification of the sink to use is now done from the perf cmd line. > > 2) I am able to build OpenCSD library. Then, share libraries > (libcstraced_c_api.so, libcstraced.so) are copied to "/usr/lib". > Then, I tried testing the library by running "c_api_pkt_print_test". Below > shows the sample outputs. > > C-API packet print test > Library Version 0.4.2 > > Idx:86; I_NOT_SYNC : I Stream not synchronised > Idx:1650; I_ASYNC : Alignment Synchronisation. > Idx:1662; I_TRACE_INFO : Trace Info. > Idx:1666; I_ADDR_L_64IS0 : Address, Long, 64 bit, IS0.; > Addr=0xFFFFFFC000096A00; > Idx:1675; I_TRACE_ON : Trace On. > Idx:1676; I_ADDR_CTXT_L_64IS0 : Address & Context, Long, 64 bit, IS0.; > Addr=0xFFFFFFC000096A00; Ctxt: AArch64,EL1, NS; CID=0x00000000; VMID=0x0000; > Idx:1692; I_ATOM_F1 : Atom format 1.; E > Idx:1693; I_ADDR_L_64IS0 : Address, Long, 64 bit, IS0.; > Addr=0xFFFFFFC000594AC0; > Idx:1703; I_ATOM_F1 : Atom format 1.; E > Idx:1704; I_ADDR_S_IS0 : Address, Short, IS0.; Addr=0xFFFFFFC000592B58 > ~[0x12B58] > Idx:1707; I_ATOM_F3 : Atom format 3.; ENN > Idx:1708; I_ATOM_F1 : Atom format 1.; E > Idx:1709; I_ADDR_L_32IS0 : Address, Long, 32 bit, IS0.; Addr=0x005AC4C8; > Idx:1715; I_ATOM_F2 : Atom format 2.; EE > Idx:1716; I_ADDR_L_32IS0 : Address, Long, 32 bit, IS0.; Addr=0x000EA588; > Idx:1721; I_ATOM_F3 : Atom format 3.; NNE > Idx:1722; I_ADDR_L_32IS0 : Address, Long, 32 bit, IS0.; Addr=0x00592B60; > > > 3) Then, perf tool under the "OpenCSD-perf-opencsd-4.9-rc1" branch is > compiled on target. > The following is the compilation log. It seems to me there is no issue with > compilation ("CC util/cs-etm-decoder/cs-etm-decoder.o" is compiled > properly). I also exported "CSTRACE_PATH=/home/linaro/OpenCSD-0.4.2/decoder" > before compilation. > > linaro@linaro-alip:~/OpenCSD-perf-opencsd-4.9-rc1$ make -C tools/perf/ > make: Entering directory > '/home/linaro/OpenCSD-perf-opencsd-4.9-rc1/tools/perf' > BUILD: Doing 'make -j4' parallel build > > Auto-detecting system features: > ... dwarf: [ on ] > ... dwarf_getlocations: [ on ] > ... glibc: [ on ] > ... gtk2: [ on ] > ... libaudit: [ on ] > ... libbfd: [ on ] > ... libelf: [ on ] > ... libnuma: [ on ] > ... numa_num_possible_cpus: [ on ] > ... libperl: [ on ] > ... libpython: [ on ] > ... libslang: [ on ] > ... libcrypto: [ on ] > ... libunwind: [ on ] > ... libdw-dwarf-unwind: [ on ] > ... zlib: [ on ] > ... lzma: [ on ] > ... get_cpuid: [ OFF ] > ... bpf: [ on ] > > Makefile.config:349: BPF prologue is not supported by architecture arm64, > missing regs_query_register_offset() > Makefile.config:400: No debug_frame support found in libunwind-aarch64 > Makefile.config:459: No debug_frame support found in libunwind > GEN common-cmds.h > HOSTCC fixdep.o > HOSTCC pmu-events/json.o > HOSTLD fixdep-in.o > LINK fixdep > HOSTCC pmu-events/jsmn.o > HOSTCC pmu-events/jevents.o > CC fd/array.o > CC fs/fs.o > HOSTLD pmu-events/jevents-in.o > CC event-parse.o > LD fd/libapi-in.o > CC cpu.o > CC debug.o > CC str_error_r.o > CC fs/tracing_path.o > CC exec-cmd.o > PERF_VERSION = 4.9.0-rc1 > Warning: tools/include/uapi/linux/bpf.h differs from kernel > CC libbpf.o > LD fs/libapi-in.o > LD libapi-in.o > AR libapi.a > CC bpf.o > CC help.o > CC pager.o > LD libbpf-in.o > LINK libbpf.a > LINK pmu-events/jevents > CC event-plugin.o > CC plugin_jbd2.o > CC parse-options.o > LD plugin_jbd2-in.o > CC plugin_hrtimer.o > LD plugin_hrtimer-in.o > CC trace-seq.o > CC plugin_kmem.o > CC run-command.o > LD plugin_kmem-in.o > CC plugin_kvm.o > CC parse-filter.o > CC sigchain.o > LD plugin_kvm-in.o > CC plugin_mac80211.o > LD plugin_mac80211-in.o > CC plugin_sched_switch.o > CC plugin_function.o > CC parse-utils.o > LD plugin_sched_switch-in.o > CC plugin_xen.o > LD plugin_xen-in.o > CC plugin_scsi.o > LD plugin_function-in.o > CC plugin_cfg80211.o > CC kbuffer-parse.o > LD plugin_scsi-in.o > LD plugin_cfg80211-in.o > LINK plugin_jbd2.so > LINK plugin_hrtimer.so > LINK plugin_kmem.so > LINK plugin_kvm.so > LINK plugin_mac80211.so > LD libtraceevent-in.o > LINK libtraceevent.a > LINK plugin_sched_switch.so > GEN perf-archive > LINK plugin_function.so > GEN perf-with-kcore > CC ui/gtk/browser.o > LINK plugin_xen.so > LINK plugin_scsi.so > LINK plugin_cfg80211.so > CC subcmd-config.o > CC ui/gtk/hists.o > LD libsubcmd-in.o > CC util/alias.o > AR libsubcmd.a > Warning: tools/arch/x86/lib/memcpy_64.S differs from kernel > Warning: tools/arch/x86/lib/memset_64.S differs from kernel > Warning: tools/arch/arm/include/uapi/asm/kvm.h differs from kernel > CC util/annotate.o > Warning: tools/include/uapi/asm-generic/mman-common.h differs from kernel > CC builtin-bench.o > CC builtin-annotate.o > CC ui/gtk/setup.o > CC ui/gtk/util.o > CC builtin-config.o > CC builtin-diff.o > CC util/block-range.o > CC ui/gtk/helpline.o > CC arch/common.o > CC util/build-id.o > CC arch/arm64/util/dwarf-regs.o > CC arch/arm64/util/unwind-libunwind.o > CC ui/gtk/progress.o > CC builtin-evlist.o > CC arch/arm64/util/../../arm/util/pmu.o > CC util/config.o > CC arch/arm64/util/../../arm/util/auxtrace.o > CC builtin-help.o > CC ui/gtk/annotate.o > CC arch/arm64/util/../../arm/util/cs-etm.o > CC builtin-sched.o > CC util/ctype.o > LD arch/arm64/util/libperf-in.o > CC arch/arm64/tests/regs_load.o > CC arch/arm64/tests/dwarf-unwind.o > CC util/db-export.o > LD ui/gtk/gtk-in.o > LD arch/arm64/tests/libperf-in.o > LD arch/arm64/libperf-in.o > LD arch/libperf-in.o > CC ui/setup.o > CC util/env.o > CC ui/helpline.o > LD gtk-in.o > GEN pmu-events/pmu-events.c > CC pmu-events/pmu-events.o > LD pmu-events/pmu-events-in.o > CC ui/progress.o > CC util/event.o > CC ui/util.o > GEN libtraceevent-dynamic-list > CC ui/hist.o > CC ui/stdio/hist.o > CC builtin-buildid-list.o > CC builtin-buildid-cache.o > CC builtin-list.o > CC ui/browser.o > CC util/evlist.o > CC builtin-record.o > CC builtin-report.o > CC ui/browsers/annotate.o > CC ui/browsers/hists.o > CC util/evsel.o > CC builtin-stat.o > CC builtin-timechart.o > CC builtin-top.o > CC util/evsel_fprintf.o > CC builtin-script.o > CC util/find_bit.o > CC util/kallsyms.o > CC util/levenshtein.o > CC util/llvm-utils.o > BISON util/parse-events-bison.c > CC builtin-kmem.o > CC ui/browsers/map.o > CC util/perf_regs.o > CC util/path.o > CC ui/browsers/scripts.o > CC util/rbtree.o > CC ui/browsers/header.o > CC util/libstring.o > CC builtin-lock.o > CC util/bitmap.o > LD ui/browsers/libperf-in.o > CC util/hweight.o > CC ui/tui/setup.o > CC util/quote.o > CC util/strbuf.o > CC ui/tui/util.o > CC util/string.o > CC builtin-kvm.o > CC builtin-inject.o > CC ui/tui/helpline.o > CC util/strlist.o > CC ui/tui/progress.o > CC util/strfilter.o > LD ui/tui/libperf-in.o > LD ui/libperf-in.o > GEN python/perf.so > CC scripts/perl/Perf-Trace-Util/Context.o > CC builtin-mem.o > CC util/top.o > LD scripts/perl/Perf-Trace-Util/libperf-in.o > CC scripts/python/Perf-Trace-Util/Context.o > CC builtin-data.o > CC util/usage.o > LD scripts/python/Perf-Trace-Util/libperf-in.o > LD scripts/libperf-in.o > CC builtin-version.o > CC builtin-trace.o > CC util/dso.o > CC builtin-probe.o > CC bench/sched-messaging.o > CC bench/sched-pipe.o > CC util/symbol.o > CC bench/mem-functions.o > CC bench/futex-hash.o > CC bench/futex-wake.o > CC bench/futex-wake-parallel.o > CC bench/futex-requeue.o > CC util/symbol_fprintf.o > CC util/color.o > CC bench/futex-lock-pi.o > CC bench/numa.o > CC util/header.o > CC util/callchain.o > CC util/values.o > LD bench/perf-in.o > CC tests/builtin-test.o > CC tests/parse-events.o > CC perf.o > CC util/debug.o > CC util/machine.o > CC util/map.o > CC util/pstack.o > CC tests/dso-data.o > CC util/session.o > CC tests/attr.o > CC util/syscalltbl.o > CC tests/vmlinux-kallsyms.o > CC util/ordered-events.o > CC tests/openat-syscall.o > CC tests/openat-syscall-all-cpus.o > CC tests/openat-syscall-tp-fields.o > CC tests/mmap-basic.o > CC util/comm.o > CC tests/perf-record.o > CC util/thread.o > CC tests/evsel-roundtrip-name.o > CC tests/evsel-tp-sched.o > CC tests/fdarray.o > CC util/thread_map.o > CC tests/pmu.o > CC tests/hists_common.o > CC util/trace-event-parse.o > CC tests/hists_link.o > CC util/parse-events-bison.o > BISON util/pmu-bison.c > CC util/trace-event-read.o > CC util/trace-event-info.o > CC tests/hists_filter.o > CC util/trace-event-scripting.o > CC util/trace-event.o > CC tests/hists_output.o > CC tests/hists_cumulate.o > CC util/svghelper.o > CC tests/python-use.o > CC tests/bp_signal.o > CC tests/bp_signal_overflow.o > CC tests/task-exit.o > CC tests/sw-clock.o > CC tests/mmap-thread-lookup.o > CC util/sort.o > CC util/hist.o > CC tests/thread-mg-share.o > CC tests/switch-tracking.o > CC util/util.o > CC tests/keep-tracking.o > CC util/xyarray.o > CC tests/code-reading.o > CC tests/sample-parsing.o > CC tests/parse-no-sample-id-all.o > CC tests/kmod-path.o > CC tests/thread-map.o > CC util/cpumap.o > CC util/cgroup.o > CC tests/llvm.o > CC util/target.o > CC tests/bpf.o > CC tests/topology.o > CC util/rblist.o > CC util/intlist.o > CC util/vdso.o > CC util/counts.o > CC tests/cpumap.o > CC tests/stat.o > CC tests/event_update.o > CC tests/event-times.o > CC util/stat.o > CC util/stat-shadow.o > CC tests/backward-ring-buffer.o > CC tests/sdt.o > CC tests/is_printable_array.o > CC tests/bitmap.o > CC tests/dwarf-unwind.o > CC tests/llvm-src-base.o > CC util/record.o > CC tests/llvm-src-kbuild.o > CC tests/llvm-src-prologue.o > CC tests/llvm-src-relocation.o > CC util/srcline.o > CC util/data.o > LD tests/perf-in.o > CC util/tsc.o > CC util/cloexec.o > CC util/call-path.o > CC util/thread-stack.o > CC util/auxtrace.o > CC util/intel-pt-decoder/intel-pt-pkt-decoder.o > LD perf-in.o > GEN util/intel-pt-decoder/inat-tables.c > CC util/intel-pt-decoder/intel-pt-log.o > CC util/intel-pt-decoder/intel-pt-decoder.o > CC util/intel-pt-decoder/intel-pt-insn-decoder.o > CC util/cs-etm-decoder/cs-etm-decoder.o > LD util/cs-etm-decoder/libperf-in.o > CC util/scripting-engines/trace-event-perl.o > CC util/scripting-engines/trace-event-python.o > CC util/intel-pt.o > LD util/intel-pt-decoder/libperf-in.o > CC util/intel-bts.o > CC util/cs-etm.o > LD util/scripting-engines/libperf-in.o > CC util/parse-branch-options.o > CC util/parse-regs-options.o > CC util/term.o > CC util/help-unknown-cmd.o > CC util/mem-events.o > CC util/vsprintf.o > CC util/drv_configs.o > CC util/bpf-loader.o > CC util/symbol-elf.o > CC util/probe-file.o > CC util/probe-event.o > CC util/probe-finder.o > CC util/dwarf-aux.o > CC util/dwarf-regs.o > CC util/unwind-libunwind-local.o > CC util/unwind-libunwind.o > CC util/libunwind/arm64.o > CC util/zlib.o > CC util/lzma.o > CC util/demangle-java.o > CC util/demangle-rust.o > CC util/jitdump.o > CC util/genelf.o > CC util/genelf_debug.o > FLEX util/parse-events-flex.c > FLEX util/pmu-flex.c > CC util/parse-events.o > CC util/pmu-bison.o > CC util/parse-events-flex.o > CC util/pmu.o > CC util/pmu-flex.o > LD util/libperf-in.o > LD libperf-in.o > AR libperf.a > LINK perf > LINK libperf-gtk.so > make: Leaving directory > '/home/linaro/OpenCSD-perf-opencsd-4.9-rc1/tools/perf' > > 4) Then, I test the perf as follows: > > linaro@linaro-alip:~/OpenCSD-perf-opencsd-4.9-rc1/tools/perf$ ./perf record > -e cs_etm/(a)826000.etr/ --per-thread uname > invalid or unsupported event: 'cs_etm/(a)826000.etr/' > Run 'perf list' for a list of valid events > > Usage: perf record [<options>] [<command>] > or: perf record [<options>] -- <command> [<options>] > > -e, --event <event> event selector. use 'perf list' to list available > events > > It seems that "perf" is not able to populate the cs_etm events. "perf list" > output shows: > > linaro@linaro-alip:~/OpenCSD-perf-opencsd-4.9-rc1/tools/perf$ ./perf list > > List of pre-defined events (to be used in -e): > > branch-misses [Hardware event] > cache-misses [Hardware event] > cache-references [Hardware event] > cpu-cycles OR cycles [Hardware event] > instructions [Hardware event] > > alignment-faults [Software event] > bpf-output [Software event] > context-switches OR cs [Software event] > cpu-clock [Software event] > cpu-migrations OR migrations [Software event] > dummy [Software event] > emulation-faults [Software event] > major-faults [Software event] > minor-faults [Software event] > page-faults OR faults [Software event] > task-clock [Software event] > > L1-dcache-load-misses [Hardware cache event] > L1-dcache-loads [Hardware cache event] > L1-dcache-store-misses [Hardware cache event] > L1-dcache-stores [Hardware cache event] > branch-load-misses [Hardware cache event] > branch-loads [Hardware cache event] > > rNNN [Raw hardware event > descriptor] > cpu/t1=v1[,t2=v2,t3 ...]/modifier [Raw hardware event > descriptor] > (see 'man perf-list' on how to encode it) > > mem:<addr>[/len][:access] [Hardware breakpoint] > > I think I am very close to getting things up properly. Also, I need to get > this working for a research work here. > > Any idea on why "perf" is not showing the events corresponding to "cs_etm"? > Where possibly is the issue? > Your kind help on this will be very much appreciated. Did you get the kernel from github as per my previous email? Kernel 4.4.23 is very old and doesn't have all of the CoreSight features required to integrate with perf. Also, keep in mind that since you are not working with Juno CPUIdle _needs_ to be disabled and you have to do make sure all power domains and clocks for the CoreSight IP blocks are managed properly. Out of curiosity, what platform is this? Mathieu > > Looking forward to hear from you and thanks. > > > Regards, > Yan Lin Aung > > On Thursday, November 10, 2016 12:23 AM, Mathieu Poirier > <mathieu.poirier(a)linaro.org> wrote: > > > On 9 November 2016 at 08:06, Yan Lin Aung <yan_lin_aung(a)yahoo.com> wrote: >> Hi Mathieu, >> >> Thanks for your reply. Sorry for a bit of delay on my response. >> >> Just a bit of intro on myself. I am a research staff from Nanyang >> Technological University, Singapore. >> >> Basically, I used the build scripts provided with Linaro deliverables for >> Juno and TC2 from ARM >> at this link: https://community.arm.com/docs/DOC-10803 >> >> I am able to get the system running either with prebuilt binaries or >> building from source. >> For Linaro release 16.09 with built from source option, the Linux 4.8.x >> runs >> on Juno r2. >> In the default configuration, coresight was not activated. >> I tried to update the config file to enable coresight drive and >> recompiled. >> However, the coresight devices are not populated somehow. >> >> I would like to have a setup with which I will be able to do some >> experiments as demonstrated in your presentation at the very minimum. >> So, my specific question will be that how shall I proceed to get >> coresight, >> perf with coresight and OpenCSD working properly >> using the Linaro release 16.09. > > You won't have the required pieces in 16.09. To replicate the > examples shown in the presentation you will have to use the kernel > found on github [1]. Since you have a Juno R2 I suggest to use branch > perf-opencsd-4.9-rc1 - that way you won't have to deal with power > domain management. Note that CoreSight is not part of the default V8 > configuration as needs to be explicitly enabled. > > Thanks, > Mathieu > > [1]. https://github.com/Linaro/OpenCSD > > >> >> If you are not using Linaro release 16.09 and have other means of getting >> things up with coresight, perf and OpenCSD on Juno, please kindly share >> with >> me. I am quite keen to follow your steps and try it out at my side here. >> >> Looking forward to hear from you and thanks. >> >> Regards, >> Yan Lin Aung >> >> >> >> >> >> >> >> >> >> On Monday, November 7, 2016 11:32 PM, Mathieu Poirier >> <mathieu.poirier(a)linaro.org> wrote: >> >> >>> ---------- Forwarded message ---------- >>> From: Yan Lin Aung <yan_lin_aung(a)yahoo.com> >>> To: "coresight(a)lists.linaro.org" <coresight(a)lists.linaro.org> >>> Cc: >>> Date: Mon, 7 Nov 2016 03:45:45 +0000 (UTC) >>> Subject: perf with CoreSight and OpenCSD on TC2 and Juno r2 >>> Hi Linaro Coresight Team, >>> >>> I came to know of "Hardware Assisted Tracing on ARM with CoreSight and >>> OpenCSD" by Mathieu Poirier. >>> In his presentation, he mentioned the reference platforms to evaluate >>> perf >>> with CoreSight and OpenCSD are Vexpress TC2 and Juno (Page 7 on his >>> slide). >>> >>> I just checked the "HOWTO.MD" at OpenCSD github site. >>> However, there is very limited info on how to get started with Vexpress >>> TC2 and Juno. >>> >>> I have access to the TC2 and Juno r2 platforms. >>> Please provide a rather detailed version of getting started guide to try >>> out perf with CoreSight and OpenCSD on either TC2 or Juno r2. >> >> Hello Yan Lin, >> >> You are correct, the HOWTO.md on github concentrates on CoreSight and >> doesn't address platform specifics - something like this would be out >> of scope. I'm not exactly sure of what you are looking for in a >> "getting started guide"... Both Juno and TC2 are well supported >> upstream and can be booted with a mainline kernel. The choice of >> bootloader and user space are entirely up to users and don't affect >> the CoreSight suite nor its integration with the perf subsystem. >> >> The fact that you have access to both platform leads me to believe you >> are part of a large organisation. As such there is definitely people >> around you with experience on how to set-up the platforms. >> >> I can try to answer specific questions if you have any. >> >> Thanks, >> Mathieu >> >>> >>> Thanx. >>> >>> Regards, >>> Yan Lin Aung >>> >> >> > >

8 years, 9 months

[PATCH v2] cs-etm: Update to perf cs-etm decoder for OpenCSD v0.5

by Mike Leach

Adds additional generic packet types to switch statement in decoder to ensure compilation without errors. Signed-off-by: Mike Leach <mike.leach(a)linaro.org> --- tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c index e4c929e..b086be9 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -201,6 +201,8 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( case OCSD_GEN_TRC_ELEM_CYCLE_COUNT: case OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN: case OCSD_GEN_TRC_ELEM_EVENT: + case OCSD_GEN_TRC_ELEM_SWTRACE: + case OCSD_GEN_TRC_ELEM_CUSTOM: default: break; } -- 2.7.4

8 years, 11 months

[PATCH 00/13] OpenCSD v0.5.0 release.

by Mike Leach

OpenCSD: Patch set for v0.5.0 release. External Decoder C-API plus examples and documentation. This allows custom decoders to be attached into the library infrastructure. STM full decoder - outputs generic software trace packets. Mike Leach (13): opencsd: Custom external decoder C-API (initial development). opencsd: Initial objects and types for STM packet decode. opencsd: Library Version defines moved to separate header file. opencsd: STM full decoder implementation opencsd: Custom External Decoder C-API (adds factory and wrappers) opencsd: A "test" decoder to prove the external decoder API opencsd: Custom Ext Decoder C-API (adds pkt monitor and sink CB) opencsd: Custom Ext Decoder C-API (adds test decoder) opencsd: adds VS2015 build files. opencsd: Modify C-API test program to use echo_test decoder. opencsd: Move custom packet string C-API to main header opencsd: Documentation and Doxygen comment updates. opencsd: Linux and windows build updates .gitignore | 2 + README.md | 8 +- decoder/build/linux/makefile | 1 + decoder/build/linux/rctdl_c_api_lib/makefile | 3 +- decoder/build/linux/ref_trace_decode_lib/makefile | 3 +- decoder/build/win-vs2015/opencsd.props | 20 + .../rctdl_c_api_lib/rctdl_c_api_lib.vcxproj | 329 +++++++++++++++ .../rctdl_c_api_lib.vcxproj.filters | 54 +++ .../ref_trace_decode_lib/ref_trace_decode_lib.sln | 147 +++++++ .../ref_trace_decode_lib.vcxproj | 440 ++++++++++++++++++++ .../ref_trace_decode_lib.vcxproj.filters | 449 ++++++++++++++++++++ .../win/rctdl_c_api_lib/rctdl_c_api_lib.vcxproj | 3 + .../rctdl_c_api_lib.vcxproj.filters | 9 + .../ref_trace_decode_lib.vcxproj | 4 + .../ref_trace_decode_lib.vcxproj.filters | 12 + decoder/docs/doxygen_config.dox | 5 +- decoder/docs/external_custom.md | 148 +++++++ ...RM Trace and Debug Snapshot file format 0v2.pdf | Bin 0 -> 435644 bytes decoder/docs/test_progs.md | 21 +- decoder/include/c_api/ocsd_c_api_cust_fact.h | 54 +++ decoder/include/c_api/ocsd_c_api_cust_impl.h | 158 ++++++++ decoder/include/c_api/ocsd_c_api_custom.h | 253 ++++++++++++ decoder/include/c_api/opencsd_c_api.h | 45 ++ decoder/include/common/ocsd_lib_dcd_register.h | 9 + decoder/include/common/trc_component.h | 1 + decoder/include/common/trc_gen_elem.h | 29 +- decoder/include/ocsd_if_types.h | 75 +++- decoder/include/ocsd_if_version.h | 65 +++ decoder/include/stm/trc_dcd_mngr_stm.h | 8 +- decoder/include/stm/trc_pkt_decode_stm.h | 103 +++++ decoder/include/stm/trc_pkt_elem_stm.h | 4 +- decoder/include/stm/trc_pkt_types_stm.h | 2 +- decoder/include/trc_gen_elem_types.h | 32 +- decoder/source/c_api/ocsd_c_api.cpp | 38 +- decoder/source/c_api/ocsd_c_api_custom_obj.cpp | 431 ++++++++++++++++++++ decoder/source/c_api/ocsd_c_api_custom_obj.h | 189 +++++++++ decoder/source/c_api/ocsd_c_api_obj.h | 51 +++ decoder/source/ocsd_error.cpp | 1 + decoder/source/ocsd_lib_dcd_register.cpp | 61 ++- decoder/source/ocsd_version.cpp | 2 +- decoder/source/stm/trc_pkt_decode_stm.cpp | 299 ++++++++++++++ decoder/source/stm/trc_pkt_proc_stm.cpp | 5 +- decoder/source/trc_component.cpp | 13 +- decoder/source/trc_gen_elem.cpp | 70 +++- decoder/source/trc_printable_elem.cpp | 4 +- .../build/linux/c_api_pkt_print_test/makefile | 4 +- .../tests/build/linux/echo_test_dcd_lib/makefile | 83 ++++ .../c_api_pkt_print_test.vcxproj | 333 +++++++++++++++ .../c_api_pkt_print_test.vcxproj.filters | 22 + .../ext_dcd_echo_test/ext_dcd_echo_test.vcxproj | 152 +++++++ .../ext_dcd_echo_test.vcxproj.filters | 33 ++ .../simple_pkt_print_c_api.vcxproj | 333 +++++++++++++++ .../simple_pkt_print_c_api.vcxproj.filters | 22 + .../snapshot_parser_lib.vcxproj | 318 +++++++++++++++ .../snapshot_parser_lib.vcxproj.filters | 72 ++++ .../trc_pkt_lister/trc_pkt_lister.vcxproj | 306 ++++++++++++++ .../trc_pkt_lister/trc_pkt_lister.vcxproj.filters | 39 ++ .../c_api_echo_test/ext_dcd_echo_test.c | 451 +++++++++++++++++++++ .../c_api_echo_test/ext_dcd_echo_test.h | 93 +++++ .../c_api_echo_test/ext_dcd_echo_test_fact.c | 104 +++++ .../c_api_echo_test/ext_dcd_echo_test_fact.h | 48 +++ decoder/tests/source/c_api_pkt_print_test.c | 89 +++- 62 files changed, 6063 insertions(+), 99 deletions(-) create mode 100644 decoder/build/win-vs2015/opencsd.props create mode 100644 decoder/build/win-vs2015/rctdl_c_api_lib/rctdl_c_api_lib.vcxproj create mode 100644 decoder/build/win-vs2015/rctdl_c_api_lib/rctdl_c_api_lib.vcxproj.filters create mode 100644 decoder/build/win-vs2015/ref_trace_decode_lib/ref_trace_decode_lib.sln create mode 100644 decoder/build/win-vs2015/ref_trace_decode_lib/ref_trace_decode_lib.vcxproj create mode 100644 decoder/build/win-vs2015/ref_trace_decode_lib/ref_trace_decode_lib.vcxproj.filters create mode 100644 decoder/docs/external_custom.md create mode 100644 decoder/docs/specs/ARM Trace and Debug Snapshot file format 0v2.pdf create mode 100644 decoder/include/c_api/ocsd_c_api_cust_fact.h create mode 100644 decoder/include/c_api/ocsd_c_api_cust_impl.h create mode 100644 decoder/include/c_api/ocsd_c_api_custom.h create mode 100644 decoder/include/ocsd_if_version.h create mode 100644 decoder/include/stm/trc_pkt_decode_stm.h create mode 100644 decoder/source/c_api/ocsd_c_api_custom_obj.cpp create mode 100644 decoder/source/c_api/ocsd_c_api_custom_obj.h create mode 100644 decoder/source/stm/trc_pkt_decode_stm.cpp create mode 100644 decoder/tests/build/linux/echo_test_dcd_lib/makefile create mode 100644 decoder/tests/build/win-vs2015/c_api_pkt_print_test/c_api_pkt_print_test.vcxproj create mode 100644 decoder/tests/build/win-vs2015/c_api_pkt_print_test/c_api_pkt_print_test.vcxproj.filters create mode 100644 decoder/tests/build/win-vs2015/ext_dcd_echo_test/ext_dcd_echo_test.vcxproj create mode 100644 decoder/tests/build/win-vs2015/ext_dcd_echo_test/ext_dcd_echo_test.vcxproj.filters create mode 100644 decoder/tests/build/win-vs2015/simple_pkt_print_c_api/simple_pkt_print_c_api.vcxproj create mode 100644 decoder/tests/build/win-vs2015/simple_pkt_print_c_api/simple_pkt_print_c_api.vcxproj.filters create mode 100644 decoder/tests/build/win-vs2015/snapshot_parser_lib/snapshot_parser_lib.vcxproj create mode 100644 decoder/tests/build/win-vs2015/snapshot_parser_lib/snapshot_parser_lib.vcxproj.filters create mode 100644 decoder/tests/build/win-vs2015/trc_pkt_lister/trc_pkt_lister.vcxproj create mode 100644 decoder/tests/build/win-vs2015/trc_pkt_lister/trc_pkt_lister.vcxproj.filters create mode 100644 decoder/tests/ext_dcd_test_eg/c_api_echo_test/ext_dcd_echo_test.c create mode 100644 decoder/tests/ext_dcd_test_eg/c_api_echo_test/ext_dcd_echo_test.h create mode 100644 decoder/tests/ext_dcd_test_eg/c_api_echo_test/ext_dcd_echo_test_fact.c create mode 100644 decoder/tests/ext_dcd_test_eg/c_api_echo_test/ext_dcd_echo_test_fact.h -- 2.7.4

8 years, 11 months

[PATCH 1/1] opencsd: C-API function declaration fix for perf build.

by Mike Leach

Changed ocsd_deregister_decoders() to ocsd_deregister_decoders(void) to comply with strict build rules in perf tools. Signed-off-by: Mike Leach <mike.leach(a)linaro.org> --- decoder/include/c_api/opencsd_c_api.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/decoder/include/c_api/opencsd_c_api.h b/decoder/include/c_api/opencsd_c_api.h index 798551b..0fee736 100644 --- a/decoder/include/c_api/opencsd_c_api.h +++ b/decoder/include/c_api/opencsd_c_api.h @@ -403,7 +403,7 @@ OCSD_C_API ocsd_err_t ocsd_register_custom_decoder(const char *name, ocsd_extern @return ocsd_err_t : Library error code - RCDTL_OK if successful. */ -OCSD_C_API ocsd_err_t ocsd_deregister_decoders(); +OCSD_C_API ocsd_err_t ocsd_deregister_decoders(void); /** Get a string representation of a custom protocol packet. -- 2.7.4

8 years, 11 months

[PATCH 1/1] cs-etm: Update to perf cs-etm decoder for OpenCSD v0.5

by Mike Leach

Adds additional generic packet types to switch statement in decoder to ensure compilation without errors. Signed-off-by: Mike Leach <mike.leach(a)linaro.org> --- tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c index e4c929e..71f5497 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -201,6 +201,8 @@ static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( case OCSD_GEN_TRC_ELEM_CYCLE_COUNT: case OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN: case OCSD_GEN_TRC_ELEM_EVENT: + case OCSD_GEN_TRC_ELEM_SWTRACE: + case OCSD_GEN_TRC_ELEM_CUSTOM: default: break; } -- 2.7.4

8 years, 11 months

Re: using ETM for "perf record -b"

by Mathieu Poirier

On 11 November 2016 at 08:32, Sebastian Pop <sebpop(a)gmail.com> wrote: > Salut Matthieu, Bon matin, > > I was following your patches to enable ETM support in the linux kernel > last years, and I have just seen that you have a very nice blog on how > to use perf record to gather execution traces. Depending on the source you have read the information may be outdated. Nowadays the very latest instructions can be found in the HOWTO.md on the OpenCSD repository [1]. That documentation is maintained regularly and is considered accurate. [1]. https://github.com/Linaro/OpenCSD/tree/opencsd-0v003 > I am mainly interested to use this mechanism to enable collection of > traces with "perf record -b" like Intel's Last Branch Record: this is > used by AutoFDO in the compiler to know which code paths are hot and > enable better inlining, register allocation, and code layout: > http://research.google.com/pubs/pub45290.html This looks interesting. > > I am interested to work with you to enable "perf record -b" on aarch64. This is a sizeable project that will keep you occupied for a little while :o) I am happy to give guidance and review patches. Some people on the CoreSight mailing list (CC'ed here) are very proficient with the CoreSight tracers and can help understand the more complex features of the IP. I suggest CC'ing the list if/when you have questions. Best regards, Mathieu > > Thanks, > Sebastian

8 years, 12 months

Re: CoreSight post from yan_lin_aung@yahoo.com requires approval

by Mathieu Poirier

> ---------- Forwarded message ---------- > From: Yan Lin Aung <yan_lin_aung(a)yahoo.com> > To: "coresight(a)lists.linaro.org" <coresight(a)lists.linaro.org> > Cc: > Date: Mon, 7 Nov 2016 03:45:45 +0000 (UTC) > Subject: perf with CoreSight and OpenCSD on TC2 and Juno r2 > Hi Linaro Coresight Team, > > I came to know of "Hardware Assisted Tracing on ARM with CoreSight and OpenCSD" by Mathieu Poirier. > In his presentation, he mentioned the reference platforms to evaluate perf with CoreSight and OpenCSD are Vexpress TC2 and Juno (Page 7 on his slide). > > I just checked the "HOWTO.MD" at OpenCSD github site. > However, there is very limited info on how to get started with Vexpress TC2 and Juno. > > I have access to the TC2 and Juno r2 platforms. > Please provide a rather detailed version of getting started guide to try out perf with CoreSight and OpenCSD on either TC2 or Juno r2. Hello Yan Lin, You are correct, the HOWTO.md on github concentrates on CoreSight and doesn't address platform specifics - something like this would be out of scope. I'm not exactly sure of what you are looking for in a "getting started guide"... Both Juno and TC2 are well supported upstream and can be booted with a mainline kernel. The choice of bootloader and user space are entirely up to users and don't affect the CoreSight suite nor its integration with the perf subsystem. The fact that you have access to both platform leads me to believe you are part of a large organisation. As such there is definitely people around you with experience on how to set-up the platforms. I can try to answer specific questions if you have any. Thanks, Mathieu > > Thanx. > > Regards, > Yan Lin Aung >

9 years

Re: Linux Coresight driver question

by Mathieu Poirier

On 8 November 2016 at 12:27, Darius-Andrei Suciu <dsuciu(a)cs.stonybrook.edu> wrote: > Hello Mathieu, Hi > > My name is Darius Suciu, a Phd. student at Stony Brook University. Congratulation - a PhD is a serious endeavour. > I am > working on a project where I need to get tracing data from an Cortex A-9 cpu > (I'm using an i.MX6 nitrogen max board). The Coresight architecure seems > very complex to me. CS is complex to anyone ramping up on it. Looking at the drivers in the kernel tree most of the complexity comes from the integration with perf. The drivers and the framework are pretty bare bone and the sysFS interface very easy to understand. > I am trying to figure out how I can read the ETB buffer > from the kernel (without using a JTAG), and the Coresight driver seems to > offer this functionality. > On the comments on the Linux Coresight driver, it says it supports also PTM > (even though the configuration seems mostly ETM specific). In terms of configuration ETMv3 and PTM are quite similar. So far I haven't found enough discrepancies that would mandate splitting the ETMv3 driver. > Could you please help me out with some questions? Of course. > > Did you using the driver on a Cortex A-9 cpu ? Or do you know what changes > are required to make it work ? I never used CS on a cortex A9 but that is irrelevant. What is important is the kind of tracer (ETMv3/4/PTM) that is coupled with each CPU and we have support for all of them (except ITM). From there you'll need to take care of the power domains, clock and the device tree. > Do you know if the ETB buffer configuration is the same for ETM and PTM > architectures (can I reuse it) ETB and the ETM/PTM are different IP blocks and don't affect each other. The current ETB driver in the kernel tree will work with any kind of tracer. Mathieu > > Thank you for the help, > Darius >

9 years

perf with CoreSight and OpenCSD on TC2 and Juno r2

by Yan Lin Aung

Hi Linaro Coresight Team, I came to know of "Hardware Assisted Tracing on ARM with CoreSight and OpenCSD" by Mathieu Poirier.In his presentation, he mentioned the reference platforms to evaluate perf with CoreSight and OpenCSD are Vexpress TC2 and Juno (Page 7 on his slide). I just checked the "HOWTO.MD" at OpenCSD github site.However, there is very limited info on how to get started with Vexpress TC2 and Juno. I have access to the TC2 and Juno r2 platforms.Please provide a rather detailed version of getting started guide to try out perf with CoreSight and OpenCSD on either TC2 or Juno r2. Thanx. Regards,Yan Lin Aung

9 years

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CoreSight November 2016