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* perf probe: Add missing 0x prefix for addresses printed in hexadecimalArnaldo Carvalho de Melo2023-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | To fix this confusing warning: # perf probe -l Failed to find debug information for address 798240 probe_main:prometheus_new_counter__return (on github.com/prometheus/client_golang/prometheus.NewCounter%return in /home/acme/git/prometheus-uprobes/main with counter) # As that 798240 is printed with PRIx64 but has no letters, better print the 0x prefix to disambiguate. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/lkml/ZEBCyFu2GjTw6qOi@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf build: Test the refcnt check buildArnaldo Carvalho de Melo2023-04-191-0/+2
| | | | | | | Make sure we test build the currently added REFCNT_CHECKING infrastructure. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf map: Add reference count checkingIan Rogers2023-04-196-51/+62
| | | | | | | | | | | | | | | | | | | | | | | | | There's no strict get/put policy with map that leads to leaks or use after free. Reference count checking identifies correct pairing of gets and puts. Committer notes: Extracted from a larger patch removing bits that were covered by the use of pre-existing map__ accessors (e.g. maps__nr_maps()) and new ones added (map__refcnt() and the maps__set_ ones) to reduce RC_CHK_ACCESS(maps)-> source code pollution. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf map: Add set_ methods for ↵Arnaldo Carvalho de Melo2023-04-199-65/+132
| | | | | | | | map->{start,end,pgoff,pgoff,reloc,erange_warned,dso,map_ip,unmap_ip,priv} To have a way to intercept usage of the reference counted struct map. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf map: Add missing conversions to map__refcnt()Arnaldo Carvalho de Melo2023-04-192-4/+4
| | | | | | | Some conversions weren't performed in 4e8db2d7520f780f ("perf map: Add map__refcnt() accessor to use in the maps test"), fix it. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf maps: Add reference count checkingIan Rogers2023-04-197-43/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add reference count checking to make sure of good use of get and put. Add and use accessors to reduce RC_CHK clutter. The only significant issue was in tests/thread-maps-share.c where reference counts were released in the reverse order to acquisition, leading to a use after put. This was fixed by reversing the put order. Committer notes: Extracted from a larger patch removing bits that were covered by the use of pre-existing maps__ accessors (e.g. maps__nr_maps()) and new ones added (maps__refcnt()) to reduce RC_CHK_ACCESS(maps)-> source code pollution. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf maps: Use maps__nr_maps() instead of open coded maps->nr_mapsArnaldo Carvalho de Melo2023-04-191-1/+1
| | | | | | To use the existing accessor and be consistent. Signef-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf maps: Add maps__refcnt() accessor to allow checking maps pointerArnaldo Carvalho de Melo2023-04-193-9/+14
| | | | | | | | To remove one more direct access to 'struct maps' so that we can intercept accesses to its instantiations and refcount check it to catch use after free, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf dso: Fix use before NULL check introduced by map__dso() introductionArnaldo Carvalho de Melo2023-04-193-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | James Clark noticed that the recent 63df0e4bc368adbd ("perf map: Add accessor for dso") patch accessed map->dso before the 'map' variable was NULL checked, which is a change in logic that leads to segmentation faults, so comb thru that patch to fix similar cases. Fixes: 63df0e4bc368adbd ("perf map: Add accessor for dso") Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/lkml/ZD68RYCVT8hqPuxr@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf cs-etm: Fix segfault in dso lookupJames Clark2023-04-181-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | map__dso() is called before thread__find_map() which always results in a null pointer dereference. Fix it by finding first, then checking if it exists. Fixes: 63df0e4bc368adbd ("perf map: Add accessor for dso") Signed-off-by: James Clark <james.clark@arm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Will Deacon <will@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230418141203.673465-1-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf script task-analyzer: Fix spelling mistake "miliseconds" -> "milliseconds"Colin Ian King2023-04-181-1/+1
| | | | | | | | | | | | | | | | | | | There is a spelling mistake in the help for the --ms option. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Acked-by: Hagen Paul Pfeifer <hagen@jauu.net> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Petar Gligoric <petar.gligoric@rohde-schwarz.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel-janitors@vger.kernel.org Link: https://lore.kernel.org/r/20230417174826.52963-1-colin.i.king@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf namespaces: Introduce nsinfo__mntns_path() accessor to avoid accessing ↵Arnaldo Carvalho de Melo2023-04-181-3/+8
| | | | | | | | ->mntns_path directly To reduce the use of RC_CHK_ACCESS(nsi). Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf namespaces: Introduce nsinfo__refcnt() accessor to avoid accessing ↵Arnaldo Carvalho de Melo2023-04-181-4/+8
| | | | | | | | ->refcnt directly To reduces the use of RC_CHK_ACCESS(nsi). Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf namespaces: Use the need_setns() accessors instead of accessing ↵Arnaldo Carvalho de Melo2023-04-181-3/+3
| | | | | | | | | ->need_setns directly This uses pre-existing accessors and reduces the use of RC_CHK_ACCESS(nsi). Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf namespaces: Add reference count checkingIan Rogers2023-04-172-57/+78
| | | | | | | | | | | | | | | | | | | | | | | | Add reference count checking controlled by REFCNT_CHECKING ifdef. The reference count checking interposes an allocated pointer between the reference counted struct on a get and frees the pointer on a put. Accesses after a put cause faults and use after free, missed puts are caughts as leaks and double puts are double frees. This checking helped resolve a memory leak and use after free: https://lore.kernel.org/linux-perf-users/CAP-5=fWZH20L4kv-BwVtGLwR=Em3AOOT+Q4QGivvQuYn5AsPRg@mail.gmail.com/ Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-4-irogers@google.com [ Extracted from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf dso: Add dso__filename_with_chroot() to reduce number of accesses to ↵Arnaldo Carvalho de Melo2023-04-176-10/+12
| | | | | | | | | | | | | | | | | | | | | dso->nsinfo members We'll need to reference count dso->nsinfo, so reduce the number of direct accesses by having a shorter form of obtaining a filename with a chroot (namespace one). Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/ZD26ZlqSbgSyH5lX@kernel.org [ Used nsinfo__pid(dso->nsinfo), as it was already present ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf cpumap: Add reference count checkingIan Rogers2023-04-172-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enabled when REFCNT_CHECKING is defined. The change adds a memory allocated pointer that is interposed between the reference counted cpu map at a get and freed by a put. The pointer replaces the original perf_cpu_map struct, so use of the perf_cpu_map via APIs remains unchanged. Any use of the cpu map without the API requires two versions, handled via the RC_CHK_ACCESS macro. This change is intended to catch: - use after put: using a cpumap after you have put it will cause a segv. - unbalanced puts: two puts for a get will result in a double free that can be captured and reported by tools like address sanitizer, including with the associated stack traces of allocation and frees. - missing puts: if a put is missing then the get turns into a memory leak that can be reported by leak sanitizer, including the stack trace at the point the get occurs. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Hao Luo <haoluo@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miaoqian Lin <linmq006@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Shunsuke Nakamura <nakamura.shun@fujitsu.com> Cc: Song Liu <song@kernel.org> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com>, Cc: Yury Norov <yury.norov@gmail.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-3-irogers@google.com [ Extracted from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf cpumap: Use perf_cpu_map__cpu(map, cpu) instead of accessing ↵Ian Rogers2023-04-171-5/+5
| | | | | | | | | | | | | | | | | | | map->map[cpu] directly So that we can validate the 'map' instance wrt refcount checking. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-3-irogers@google.com [ Extracted from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf cpumap: Remove initializations done in perf_cpu_map__alloc()Arnaldo Carvalho de Melo2023-04-171-6/+1
| | | | | | | | | | When extracting this patch from Ian's original patch I forgot to remove the setting of ->nr and ->refcnt, no need to do those initializations again as those are done in perf_cpu_map__alloc() already, duh. Cc: Ian Rogers <irogers@google.com> Fixes: 1f94479edb4decdc ("libperf: Make perf_cpu_map__alloc() available as an internal function for tools/perf to use") Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* libperf: Add perf_cpu_map__refcnt() interanl accessor to use in the maps testArnaldo Carvalho de Melo2023-04-171-2/+2
| | | | | | | | | | | | | | | | | | To remove one more direct access to 'struct perf_cpu_map' so that we can intercept accesses to its instantiations and refcount check it to catch use after free, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/ZD1qdYjG+DL6KOfP@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf test: Simplify for_each_test() to avoid tripping on -Werror=array-boundsArnaldo Carvalho de Melo2023-04-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | When cross building on debian to the mips 32-bit arch we get these warnings: In function '__cmd_test', inlined from 'cmd_test' at tests/builtin-test.c:561:9: tests/builtin-test.c:260:66: error: array subscript 1 is outside array bounds of 'struct test_suite *[1]' [-Werror=array-bounds] 260 | for (k = 0, t = tests[j][k]; tests[j][k]; k++, t = tests[j][k]) | ^ tests/builtin-test.c:369:9: note: in expansion of macro 'for_each_test' 369 | for_each_test(j, k, t) { | ^~~~~~~~~~~~~ tests/builtin-test.c: In function 'cmd_test': tests/builtin-test.c:36:27: note: at offset 4 into object 'arch_tests' of size 4 36 | struct test_suite *__weak arch_tests[] = { | ^~~~~~~~~~ cc1: all warnings being treated as errors Switch to using a while(!sentinel) for the second level of the 'tests' array to avoid that compiler complaint. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf map: Delete two variable initialisations before null pointer checks in ↵Markus Elfring2023-04-141-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sort__sym_from_cmp() Addresses of two data structure members were determined before corresponding null pointer checks in the implementation of the function “sort__sym_from_cmp”. Thus avoid the risk for undefined behaviour by removing extra initialisations for the local variables “from_l” and “from_r” (also because they were already reassigned with the same value behind this pointer check). This issue was detected by using the Coccinelle software. Fixes: 1b9e97a2a95e4941 ("perf tools: Fix report -F symbol_from for data without branch info") Signed-off-by: <elfring@users.sourceforge.net> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/cocci/54a21fea-64e3-de67-82ef-d61b90ffad05@web.de/ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for tigerlakeIan Rogers2023-04-132-88/+90
| | | | | | | | | | | | | | | | | | | | Move events from 'uncore-other' topic classification to interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-22-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for snowridgexIan Rogers2023-04-134-22056/+22060
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-21-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for skylakexIan Rogers2023-04-135-26144/+26148
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect, io and memory. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-20-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for skylakeIan Rogers2023-04-133-79/+81
| | | | | | | | | | | | | | | | | | | | | Move events from 'uncore-other' topic classification to cache and interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-19-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for sandybridgeIan Rogers2023-04-132-25/+25
| | | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache and interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-18-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for knightslandingIan Rogers2023-04-133-260/+262
| | | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, io and memory. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-17-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for jaketownIan Rogers2023-04-134-1574/+1574
| | | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-16-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for ivytownIan Rogers2023-04-134-2531/+2531
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for ivybridgeIan Rogers2023-04-132-25/+25
| | | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache and interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-14-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for icelakexIan Rogers2023-04-134-33697/+33701
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-13-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for icelakeIan Rogers2023-04-132-72/+74
| | | | | | | | | | | | | | | | | | | | Move events from 'uncore-other' topic classification to interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-12-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for haswellxIan Rogers2023-04-134-3491/+3491
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-11-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for haswellIan Rogers2023-04-133-75/+77
| | | | | | | | | | | | | | | | | | | | | Move events from 'uncore-other' topic classification to cache and interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-10-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for cascadelakexIan Rogers2023-04-135-26345/+26349
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect, io and memory. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-9-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for broadwellxIan Rogers2023-04-134-3572/+3572
| | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-8-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for broadwelldeIan Rogers2023-04-133-774/+776
| | | | | | | | | | | | | | | | | | | | | Remove 'uncore-other' topic classification, move to cache, interconnect and io. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for broadwellIan Rogers2023-04-133-74/+76
| | | | | | | | | | | | | | | | | | | | | Reduce the number of 'uncore-other' topic classifications, move to cache and interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Fix uncore topics for alderlakeIan Rogers2023-04-134-112/+116
| | | | | | | | | | | | | | | | | | | | Move events from 'uncore-other' topic classification to interconnect. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-5-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Add sierraforestIan Rogers2023-04-137-0/+332
| | | | | | | | | | | | | | | | | | | | | Add v1.00 from: https://github.com/intel/perfmon/pull/69 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Add grandridgeIan Rogers2023-04-137-0/+332
| | | | | | | | | | | | | | | | | | | | | Add v1.00 from: https://github.com/intel/perfmon/pull/69 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230413132949.3487664-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf vendor events intel: Update sapphirerapids to v1.12Ian Rogers2023-04-1310-4530/+18906
| | | | | | | | | | | | | | | | | | | | | | | | | Summary from https://github.com/intel/perfmon/pull/68 - Numerous uncore event additions and changes. - Description updates for core events XQ.FULL_CYCLES and MISC2_RETIRED.LFENCE. - Update ARITH.IDIV_ACTIVE counter mask. This change also gets rid of uncore-other as a topic, derived from the file name, breaking it apart in to more specific topics. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: http://lore.kernel.org/lkml/20230413132949.3487664-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf sched: Fix sched latency analysis incorrection when using ↵Chunxin Zang2023-04-131-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | 'sched:sched_wakeup' 'perf sched latency' is incorrect to get process schedule latency when it used 'sched:sched_wakeup' to analysis perf.data. Because 'perf record' prefers to use 'sched:sched_waking' to 'sched:sched_wakeup' since commit d566a9c2d482 ("perf sched: Prefer sched_waking event when it exists"). It's very reasonable to evaluate process schedule latency. Similarly, update sched latency/map/replay to use sched_waking events. Signed-off-by: Chunxin Zang <zangchunxin@lixiang.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20230328060038.2346935-1-zangchunxin@lixiang.com Signed-off-by: Jerry Zhou <zhouchunhua@lixiang.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf pmu: Use perf_cpu_map__set_nr() in perf_pmu__cpus_match() to allow for ↵Arnaldo Carvalho de Melo2023-04-121-2/+2
| | | | | | | | | | | | | | | | | | | refcnt checking One more step to allow for checking reference counting, user after free, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/ZDb9dycHQ11UIXwx@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* libperf: Make perf_cpu_map__alloc() available as an internal function for ↵Ian Rogers2023-04-121-1/+1
| | | | | | | | | | | | | | | | | | | | tools/perf to use We had the open coded equivalent in perf_cpu_map__empty_new(), so reuse what is in libperf. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-3-irogers@google.com [ Split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf cpumap: Use perf_cpu_map__nr(cpus) to access cpus->nrIan Rogers2023-04-121-6/+6
| | | | | | | | | | | | | | | | | | So that we can have a single point where to refcount check 'struct perf_cpu_map' instances for use after free, etc. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/20230407230405.2931830-3-irogers@google.com [ Split from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf map: Add map__refcnt() accessor to use in the maps testArnaldo Carvalho de Melo2023-04-122-2/+7
| | | | | | | | | | | | | | | | | | To remove one more direct access to 'struct map' so that we can intecept accesses to its instantiations and refcount check it to catch use after free, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Link: https://lore.kernel.org/lkml/ZDbRIJknafLnDwtO@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf scripts python intel-pt-events: Delete unused 'event_attr variableAlexander Pantyukhin2023-04-121-3/+3
| | | | | | | | | | | | | | | | | The 'event_attr' is never used later, the var is ok be deleted. Additional code simplification is to substitute string slice comparison with "substring" function. This case no need to know the length specific words. Signed-off-by: Alexander Pantyukhin <apantykhin@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20230114130533.2877-1-apantykhin@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
* perf top: Expand the range of multithreaded phaseHangliang Lai2023-04-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In __cmd_top(), perf_set_multithreaded() is used to enable pthread_rwlock, thus down_read() and down_write () are not nops, handling concurrency problems Then 'perf top' uses perf_set_singlethreaded(), switching to the single threaded phase, assuming that no thread concurrency will happen later. However, a use after free problem could occur in the single threaded phase, the concurrent procedure is this: display_thread process_thread -------------- -------------- thread__comm_len -> thread__comm_str -> __thread__comm_str(thread) thread__delete -> comm__free -> comm_str__put -> zfree(&cs->str) -> thread->comm_len = strlen(comm); Since in single thread phase, perf_singlethreaded is true, down_read() and down_write() do nothing to avoid concurrency problems. This patch moves the perf_set_singlethreaded() call to the function tail to expand the multithreaded phase range, making display_thread() and process_thread() concurrency safe. Reviewed-by: Yunfeng Ye <yeyunfeng@huawei.com> Signed-off-by: Hangliang Lai <laihangliang1@huawei.com> Co-developed-by: Wenyu Liu <liuwenyu7@huawei.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Christian Brauner <brauner@kernel.org> Cc: Feilong Lin <linfeilong@huawei.com> Cc: Hewenliang <hewenliang4@huawei.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20230411013224.2079-1-laihangliang1@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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