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The evlist and the cpu/thread maps should be released together.
Otherwise following error was reported by Asan.
Note that this test still has memory leaks in DSOs so it still fails
even after this change. I'll take a look at that too.
# perf test -v 26
26: Object code reading :
--- start ---
test child forked, pid 154184
Looking at the vmlinux_path (8 entries long)
symsrc__init: build id mismatch for vmlinux.
symsrc__init: cannot get elf header.
Using /proc/kcore for kernel data
Using /proc/kallsyms for symbols
Parsing event 'cycles'
mmap size 528384B
...
=================================================================
==154184==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 439 byte(s) in 1 object(s) allocated from:
#0 0x7fcb66e77037 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:154
#1 0x55ad9b7e821e in dso__new_id util/dso.c:1256
#2 0x55ad9b8cfd4a in __machine__addnew_vdso util/vdso.c:132
#3 0x55ad9b8cfd4a in machine__findnew_vdso util/vdso.c:347
#4 0x55ad9b845b7e in map__new util/map.c:176
#5 0x55ad9b8415a2 in machine__process_mmap2_event util/machine.c:1787
#6 0x55ad9b8fab16 in perf_tool__process_synth_event util/synthetic-events.c:64
#7 0x55ad9b8fab16 in perf_event__synthesize_mmap_events util/synthetic-events.c:499
#8 0x55ad9b8fbfdf in __event__synthesize_thread util/synthetic-events.c:741
#9 0x55ad9b8ff3e3 in perf_event__synthesize_thread_map util/synthetic-events.c:833
#10 0x55ad9b738585 in do_test_code_reading tests/code-reading.c:608
#11 0x55ad9b73b25d in test__code_reading tests/code-reading.c:722
#12 0x55ad9b6f28fb in run_test tests/builtin-test.c:428
#13 0x55ad9b6f28fb in test_and_print tests/builtin-test.c:458
#14 0x55ad9b6f4a53 in __cmd_test tests/builtin-test.c:679
#15 0x55ad9b6f4a53 in cmd_test tests/builtin-test.c:825
#16 0x55ad9b760cc4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313
#17 0x55ad9b5eaa88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365
#18 0x55ad9b5eaa88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409
#19 0x55ad9b5eaa88 in main /home/namhyung/project/linux/tools/perf/perf.c:539
#20 0x7fcb669acd09 in __libc_start_main ../csu/libc-start.c:308
...
SUMMARY: AddressSanitizer: 471 byte(s) leaked in 2 allocation(s).
test child finished with 1
---- end ----
Object code reading: FAILED!
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210301140409.184570-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The evlist has the maps with its own refcounts so we don't need to set
the pointers to NULL. Otherwise following error was reported by Asan.
Also change the goto label since it doesn't need to have two.
# perf test -v 25
25: Software clock events period values :
--- start ---
test child forked, pid 149154
mmap size 528384B
mmap size 528384B
=================================================================
==149154==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 32 byte(s) in 1 object(s) allocated from:
#0 0x7fef5cd071f8 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164
#1 0x56260d5e8b8e in perf_thread_map__realloc /home/namhyung/project/linux/tools/lib/perf/threadmap.c:23
#2 0x56260d3df7a9 in thread_map__new_by_tid util/thread_map.c:63
#3 0x56260d2ac6b2 in __test__sw_clock_freq tests/sw-clock.c:65
#4 0x56260d26d8fb in run_test tests/builtin-test.c:428
#5 0x56260d26d8fb in test_and_print tests/builtin-test.c:458
#6 0x56260d26fa53 in __cmd_test tests/builtin-test.c:679
#7 0x56260d26fa53 in cmd_test tests/builtin-test.c:825
#8 0x56260d2dbb64 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313
#9 0x56260d165a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365
#10 0x56260d165a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409
#11 0x56260d165a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539
#12 0x7fef5c83cd09 in __libc_start_main ../csu/libc-start.c:308
...
test child finished with 1
---- end ----
Software clock events period values : FAILED!
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210301140409.184570-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The evlist has the maps with its own refcounts so we don't need to set
the pointers to NULL. Otherwise following error was reported by Asan.
Also change the goto label since it doesn't need to have two.
# perf test -v 24
24: Number of exit events of a simple workload :
--- start ---
test child forked, pid 145915
mmap size 528384B
=================================================================
==145915==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 32 byte(s) in 1 object(s) allocated from:
#0 0x7fc44e50d1f8 in __interceptor_realloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:164
#1 0x561cf50f4d2e in perf_thread_map__realloc /home/namhyung/project/linux/tools/lib/perf/threadmap.c:23
#2 0x561cf4eeb949 in thread_map__new_by_tid util/thread_map.c:63
#3 0x561cf4db7fd2 in test__task_exit tests/task-exit.c:74
#4 0x561cf4d798fb in run_test tests/builtin-test.c:428
#5 0x561cf4d798fb in test_and_print tests/builtin-test.c:458
#6 0x561cf4d7ba53 in __cmd_test tests/builtin-test.c:679
#7 0x561cf4d7ba53 in cmd_test tests/builtin-test.c:825
#8 0x561cf4de7d04 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313
#9 0x561cf4c71a88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365
#10 0x561cf4c71a88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409
#11 0x561cf4c71a88 in main /home/namhyung/project/linux/tools/perf/perf.c:539
#12 0x7fc44e042d09 in __libc_start_main ../csu/libc-start.c:308
...
test child finished with 1
---- end ----
Number of exit events of a simple workload: FAILED!
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210301140409.184570-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The get_argv_exec_path() returns a dynamic memory so it should be
freed after use.
$ perf test -v 17
...
==141682==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 33 byte(s) in 1 object(s) allocated from:
#0 0x7f09107d2e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x7f091035f6a7 in __vasprintf_internal libio/vasprintf.c:71
SUMMARY: AddressSanitizer: 33 byte(s) leaked in 1 allocation(s).
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210301140409.184570-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The evlist has the maps with its own refcounts so we don't need to set
the pointers to NULL. Otherwise following error was reported by Asan.
# perf test -v 4
4: Read samples using the mmap interface :
--- start ---
test child forked, pid 139782
mmap size 528384B
=================================================================
==139782==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 40 byte(s) in 1 object(s) allocated from:
#0 0x7f1f76daee8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x564ba21a0fea in cpu_map__trim_new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:79
#2 0x564ba21a1a0f in perf_cpu_map__read /home/namhyung/project/linux/tools/lib/perf/cpumap.c:149
#3 0x564ba21a21cf in cpu_map__read_all_cpu_map /home/namhyung/project/linux/tools/lib/perf/cpumap.c:166
#4 0x564ba21a21cf in perf_cpu_map__new /home/namhyung/project/linux/tools/lib/perf/cpumap.c:181
#5 0x564ba1e48298 in test__basic_mmap tests/mmap-basic.c:55
#6 0x564ba1e278fb in run_test tests/builtin-test.c:428
#7 0x564ba1e278fb in test_and_print tests/builtin-test.c:458
#8 0x564ba1e29a53 in __cmd_test tests/builtin-test.c:679
#9 0x564ba1e29a53 in cmd_test tests/builtin-test.c:825
#10 0x564ba1e95cb4 in run_builtin /home/namhyung/project/linux/tools/perf/perf.c:313
#11 0x564ba1d1fa88 in handle_internal_command /home/namhyung/project/linux/tools/perf/perf.c:365
#12 0x564ba1d1fa88 in run_argv /home/namhyung/project/linux/tools/perf/perf.c:409
#13 0x564ba1d1fa88 in main /home/namhyung/project/linux/tools/perf/perf.c:539
#14 0x7f1f768e4d09 in __libc_start_main ../csu/libc-start.c:308
...
test child finished with 1
---- end ----
Read samples using the mmap interface: FAILED!
failed to open shell test directory: /home/namhyung/libexec/perf-core/tests/shell
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20210301140409.184570-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Jin Yao reported parser error for software event:
# perf stat -e software/r1a/ -a -- sleep 1
event syntax error: 'software/r1a/'
\___ parser error
This happens after commit 8c3b1ba0e7ea9a80 ("drm/i915/gt: Track the
overall awake/busy time"), where new software-gt-awake-time event's
non-pmu-event-style makes event parser conflict with software PMU.
If we allow PE_PMU_EVENT_PRE to be parsed as PMU name, we fix the
conflict and the following character '/' for PMU or '-' for
non-pmu-event-style event allows parser to decide what even is
specified.
Fixes: 8c3b1ba0e7ea9a80 ("drm/i915/gt: Track the overall awake/busy time")
Reported-by: Jin Yao <yao.jin@linux.intel.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210301122315.63471-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
John reported that the daemon test is not working for non root user.
Changing the tests configurations so it's allowed to run under normal
user.
Fixes: 2291bb915b55 ("perf tests: Add daemon 'list' command test")
Reported-by: John Garry <john.garry@huawei.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210301122510.64402-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add proper mode for mkfifo calls to get read and write permissions for
user. We can't use O_RDWR in here, changing to standard permission
value.
Fixes: 6a6d1804a190 ("perf daemon: Set control fifo for session")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210301122510.64402-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This was introduced by commit e4ffd066ff440a57 ("perf: Normalize gcc
parameter when generating arch errno table").
Assuming the first word of $(CC) is the actual compiler breaks usage
like CC="ccache gcc": the script ends up calling ccache directly with
gcc arguments, what fails. Instead of getting the first word, just
remove from $(CC) any word that starts with a "-". This maintains the
spirit of the original patch, while not breaking ccache users.
Fixes: e4ffd066ff440a57 ("perf: Normalize gcc parameter when generating arch errno table")
Signed-off-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: He Zhe <zhe.he@windriver.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: http://lore.kernel.org/lkml/20210224130046.346977-1-antonio.terceiro@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Option doesn't take a value, make sure the man pages agree. For example:
$ perf evlist --verbose=1
Error: option `verbose' takes no value
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210226183145.1878782-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In systems having higher node numbers available like node
255, perf numa bench will fail with SIGABORT.
<<>>
perf: bench/numa.c:1416: init: Assertion `!(g->p.nr_nodes > 64 || g->p.nr_nodes < 0)' failed.
Aborted (core dumped)
<<>>
Snippet from 'numactl -H' below on a powerpc system where the highest
node number available is 255:
available: 6 nodes (0,8,252-255)
node 0 cpus: <cpu-list>
node 0 size: 519587 MB
node 0 free: 516659 MB
node 8 cpus: <cpu-list>
node 8 size: 523607 MB
node 8 free: 486757 MB
node 252 cpus:
node 252 size: 0 MB
node 252 free: 0 MB
node 253 cpus:
node 253 size: 0 MB
node 253 free: 0 MB
node 254 cpus:
node 254 size: 0 MB
node 254 free: 0 MB
node 255 cpus:
node 255 size: 0 MB
node 255 free: 0 MB
node distances:
node 0 8 252 253 254 255
Note: <cpu-list> expands to actual cpu list in the original output.
These nodes 252-255 are to represent the memory on GPUs and are valid
nodes.
The perf numa bench init code has a condition check to see if the number
of NUMA nodes (nr_nodes) exceeds MAX_NR_NODES. The value of MAX_NR_NODES
defined in perf code is 64. And the 'nr_nodes' is the value from
numa_max_node() which represents the highest node number available in the
system. In some systems where we could have NUMA node 255, this condition
check fails and results in SIGABORT.
The numa benchmark uses static value of MAX_NR_NODES in the code to
represent size of two NUMA node arrays and node bitmask used for setting
memory policy. Patch adds a fix to dynamically allocate size for the
two arrays and bitmask value based on the node numbers available in the
system. With the fix, perf numa benchmark will work with node configuration
on any system and thus removes the static MAX_NR_NODES value.
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lore.kernel.org/lkml/1614271802-1503-1-git-send-email-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
__cmd_diff() sets result of perf_session__new() to d->session.
In case of failure, it's errno and perf-diff may crash with:
failed to open perf.data: Permission denied
Failed to open perf.data
Segmentation fault (core dumped)
From the coredump:
0 0x00005569a62b5955 in auxtrace__free (session=0xffffffffffffffff)
at util/auxtrace.c:2681
1 0x00005569a626b37d in perf_session__delete (session=0xffffffffffffffff)
at util/session.c:295
2 perf_session__delete (session=0xffffffffffffffff) at util/session.c:291
3 0x00005569a618008a in __cmd_diff () at builtin-diff.c:1239
4 cmd_diff (argc=<optimized out>, argv=<optimized out>) at builtin-diff.c:2011
[..]
Funny enough, it won't always crash. For me it crashes only if failed
file is second in cmd-line: the reason is that cmd_diff() check files for
branch-stacks [in check_file_brstack()] and if the first file doesn't
have brstacks, it doesn't proceed to try open other files from cmd-line.
Check d->session before calling perf_session__delete().
Another solution would be assigning to temporary variable, checking it,
but I find it easier to follow with IS_ERR() check in the same function.
After some time it's still obvious why the check is needed, and with
temp variable it's possible to make the same mistake.
Committer testing:
$ perf record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
$ perf diff
failed to open perf.data.old: No such file or directory
Failed to open perf.data.old
$ perf record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
$ perf diff
# Event 'cycles:u'
#
# Baseline Delta Abs Shared Object Symbol
# ........ ......... ................ ..........................
#
0.92% +87.66% [unknown] [k] 0xffffffff8825de16
11.39% +0.04% ld-2.32.so [.] __GI___tunables_init
87.70% ld-2.32.so [.] _dl_check_map_versions
$ sudo chown root:root perf.data
[sudo] password for acme:
$ perf diff
failed to open perf.data: Permission denied
Failed to open perf.data
Segmentation fault (core dumped)
$
After the patch:
$ perf diff
failed to open perf.data: Permission denied
Failed to open perf.data
$
Signed-off-by: Dmitry Safonov <dima@arista.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: dmitry safonov <dima@arista.com>
Link: http://lore.kernel.org/lkml/20210302023533.1572231-1-dima@arista.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Arnaldo reported issue for following build command:
$ rm -rf /tmp/krava; mkdir /tmp/krava; make O=/tmp/krava clean
CLEAN config
/bin/sh: line 0: cd: /tmp/krava/feature/: No such file or directory
../../scripts/Makefile.include:17: *** output directory "/tmp/krava/feature/" does not exist. Stop.
make[1]: *** [Makefile.perf:1010: config-clean] Error 2
make: *** [Makefile:90: clean] Error 2
The problem is that now that we include scripts/Makefile.include
in feature's Makefile (which is fine and needed), we need to ensure
the OUTPUT directory exists, before executing (out of tree) clean
command.
Removing the feature's cleanup from perf Makefile and fixing
feature's cleanup under build Makefile, so it now checks that
there's existing OUTPUT directory before calling the clean.
Fixes: 211a741cd3e1 ("tools: Factor Clang, LLC and LLVM utils definitions")
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM/Clang v13-git
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210224150831.409639-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The musl-libc [1] defines (struct timeval).tv_sec as a 'long long' for
arm and other architectures. The default build having a '-Wformat' flag,
not casting the field when printing prevents from building perf.
This patch casts the (struct timeval).tv_sec fields to the expected
format.
[1] git://git.musl-libc.org/musl
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Douglas.raillard@arm.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210224182410.5366-1-Pierre.Gondois@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
fbcee2ebe8edbb6a ("powerpc/32: Always save non volatile GPRs at syscall entry")
That shouldn't cause any change in tooling, just silences the following
tools/perf/ build warning:
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Right now, when Line numbers are displayed, one can't easily find a
source file that the line corresponds to.
When a source line is selected and 'l' is pressed, full source file
location is displayed in perf UI footer line. The hotkey works only for
source code lines.
Signed-off-by: Martin Liška <mliska@suse.cz>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lore.kernel.org/lkml/25a6384f-d862-5dda-4fec-8f0555599c75@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
$ codespell ./tool/perf/bench
tools/perf/bench/inject-buildid.c:375: tihs ==> this
Fix a typo found by codespell.
Signed-off-by: Xiong Zhenwu <xiong.zhenwu@zte.com.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210305092212.204923-1-xiong.zhenwu@zte.com.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Missed space after #include.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210306080840.3785816-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add -Wall -Werror when compiling BPF skeletons.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210306080840.3785816-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Fixes -Wall warnings.
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20210306080840.3785816-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Abstract out the target parameter so that upcoming commits, more than
just the existing "helpers" target can be called to generate specific
portions of docs from the eBPF UAPI headers.
Signed-off-by: Joe Stringer <joe@cilium.io>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20210302171947.2268128-10-joe@cilium.io
Warning "dso not found" is reported when using "perf report -D".
66702781413407 0x32c0 [0x30]: PERF_RECORD_SAMPLE(IP, 0x2): 28177/28177: 0x55e493e00563 period: 106578 addr: 0
... thread: perf:28177
...... dso: <not found>
66702727832429 0x9dd8 [0x38]: PERF_RECORD_COMM exec: triad_loop:28177/28177
The PERF_RECORD_SAMPLE event (timestamp: 66702781413407) should be after the
PERF_RECORD_COMM event (timestamp: 66702727832429), but it's early processed.
So for most of cases, it makes sense to keep the event ordered even for dump
mode. But it would be also useful to disable ordered_events for reporting raw
dump to see events as they are stored in the perf.data file.
So now, set ordered_events by default to true and add a new option
'disable-order' to disable it. For example,
perf report -D --disable-order
Fixes: 977f739b7126b ("perf report: Disable ordered_events for raw dump")
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210219070005.12397-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The PID of the task could be traced as VMID when the kernel is running
at EL2. Teach the decoder to look for VMID when the CONTEXTIDR (Arm32)
or CONTEXTIDR_EL1 (Arm64) is invalid but we have a valid VMID.
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Co-developed-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Al Grant <al.grant@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20210213113220.292229-6-leo.yan@linaro.org
Link: https://lore.kernel.org/r/20210224164835.3497311-7-mathieu.poirier@linaro.org
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If the kernel is running at EL2, the pid of a task is exposed via VMID
instead of the CONTEXTID. Add support for this in the perf tool.
This patch respects user setting if user has specified any configs
from "contextid", "contextid1" or "contextid2"; otherwise, it
dynamically sets config based on PMU format "contextid".
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Co-developed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Al Grant <al.grant@arm.com>
Link: https://lore.kernel.org/r/20210213113220.292229-4-leo.yan@linaro.org
Link: https://lore.kernel.org/r/20210224164835.3497311-5-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When set option with macros ETM_OPT_CTXTID and ETM_OPT_TS, it wrongly
takes these two values (14 and 28 prespectively) as bit masks, but
actually both are the offset for bits. But this doesn't lead to further
failure due to the AND logic operation will be always true for
ETM_OPT_CTXTID / ETM_OPT_TS.
This patch uses the BIT() macro for option bits, thus it can request the
correct bitmaps for "contextid" and "timestamp" when calling
cs_etm_set_option().
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20210213113220.292229-3-leo.yan@linaro.org
Link: https://lore.kernel.org/r/20210224164835.3497311-4-mathieu.poirier@linaro.org
[Extract the change as a separate patch for easier review]
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The current fixed metadata version format (version 0), means that adding
metadata parameter items renders files from a previous version of perf
unreadable. Per CPU parameters appear in a fixed order, but there is no
field to indicate the number of ETM parameters per CPU.
This patch updates the per CPU parameter blocks to include a NR_PARAMs
value which indicates the number of parameters in the block.
The header version is incremented to 1. Fixed ordering is retained,
new ETM parameters are added to the end of the list.
The reader code is updated to be able to read current version 0 files,
For version 1, the reader will read the number of parameters in the
per CPU block. This allows the reader to process older or newer files
that may have different numbers of parameters than in use at the
time perf was built.
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20210202214040.32349-1-mike.leach@linaro.org
Link: https://lore.kernel.org/r/20210224164835.3497311-2-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Several metrics are defined based on unsupported / non-existent
events, and silently discarded. Remove them for good code hygiene
and to avoid confusion.
Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Link: https://lore.kernel.org/r/20210224181436.782091-1-pc@us.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This builds on the previous changes to tests/shell/buildid.sh, adding
tests for a PE file. It adds it to the build-id cache manually and, if
Wine is available, runs it under "perf record" and verifies that it was
added automatically.
If wine is not installed, only warnings are printed; the test can still
exit 0.
Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: http://lore.kernel.org/lkml/790bfe67-2155-a426-7130-ae7c45cb055b@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add all other man pages to the "see also" list except for
perf-script-perl and perf-script-python that are linked to from
perf-script.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20201120063037.3166069-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Grab a copy of arch/mips/kernel/syscalls/syscall_n64.tbl and use it to
generate tools/perf/arch/mips/include/generated/asm/syscalls_n64.c file,
this is similar with commit 1b700c997500 ("perf tools: Build syscall
table .c header from kernel's syscall_64.tbl")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Juxin Gao <gaojuxin@loongson.cn>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Cc: linux-mips@vger.kernel.org
Link: http://lore.kernel.org/lkml/1612409724-3516-4-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Map perf APIs (perf_reg_name/get_arch_regstr/unwind__arch_reg_id) with
MIPS specific registers.
[ayan@wavecomp.com: repick this patch for unwinding userstack backtrace
by perf and libunwind on MIPS based CPU.]
[yangtiezhu@loongson.cn: Add sample_reg_masks[] to fix build error,
silence some checkpatch errors and warnings, and also separate the
original patches into two parts (MIPS kernel and perf tools) to merge
easily.]
The original patches:
https://lore.kernel.org/patchwork/patch/1126521/https://lore.kernel.org/patchwork/patch/1126520/
Committer notes:
Do it as __perf_reg_name() to cope with:
067012974c8ae31a ("perf tools: Fix arm64 build error with gcc-11")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Archer Yan <ayan@wavecomp.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Jianlin Lv <Jianlin.Lv@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Juxin Gao <gaojuxin@loongson.cn>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Link: http://lore.kernel.org/lkml/1612409724-3516-3-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Archer Yan <ayan@wavecomp.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To get the changes in:
fbcee2ebe8edbb6a ("powerpc/32: Always save non volatile GPRs at syscall entry")
That shouldn't cause any change in tooling, just silences the following
tools/perf/ build warning:
Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- Support instruction latency in 'perf report', with both memory latency
(weight) and instruction latency information, users can locate expensive load
instructions and understand time spent in different stages.
- Extend 'perf c2c' to display the number of loads which were blocked by data
or address conflict.
- Add 'perf stat' support for L2 topdown events in systems such as Intel's
Sapphire rapids server.
- Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a sort key, for instance:
perf report --stdio --sort=comm,symbol,code_page_size
- New 'perf daemon' command to run long running sessions while providing a way to control
the enablement of events without restarting a traditional 'perf record' session.
- Enable counting events for BPF programs in 'perf stat' just like for other
targets (tid, cgroup, cpu, etc), e.g.:
# perf stat -e ref-cycles,cycles -b 254 -I 1000
1.487903822 115,200 ref-cycles
1.487903822 86,012 cycles
2.489147029 80,560 ref-cycles
2.489147029 73,784 cycles
^C#
The example above counts 'cycles' and 'ref-cycles' of BPF program of id 254.
It is similar to bpftool-prog-profile command, but more flexible.
- Support the new layout for PERF_RECORD_MMAP2 to carry the DSO build-id using infrastructure
generalised from the eBPF subsystem, removing the need for traversing the perf.data file
to collect build-ids at the end of 'perf record' sessions and helping with long running
sessions where binaries can get replaced in updates, leading to possible mis-resolution
of symbols.
- Support filtering by hex address in 'perf script'.
- Support DSO filter in 'perf script', like in other perf tools.
- Add namespaces support to 'perf inject'
- Add support for SDT (Dtrace Style Markers) events on ARM64.
perf record:
- Fix handling of eventfd() when draining a buffer in 'perf record'.
- Improvements to the generation of metadata events for pre-existing threads (mmaps, comm, etc),
speeding up the work done at the start of system wide or per CPU 'perf record' sessions.
Hardware tracing:
- Initial support for tracing KVM with Intel PT.
- Intel PT fixes for IPC
- Support Intel PT PSB (synchronization packets) events.
- Automatically group aux-output events to overcome --filter syntax.
- Enable PERF_SAMPLE_DATA_SRC on ARMs SPE.
- Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0.
perf annotate TUI:
- Fix handling of 'k' ("show line number") hotkey
- Fix jump parsing for C++ code.
perf probe:
- Add protection to avoid endless loop.
cgroups:
- Avoid reading cgroup mountpoint multiple times, caching it.
- Fix handling of cgroup v1/v2 in mixed hierarchy.
Symbol resolving:
- Add OCaml symbol demangling.
- Further fixes for handling PE executables when using perf with Wine and .exe/.dll files.
- Fix 'perf unwind' DSO handling.
- Resolve symbols against debug file first, to deal with artifacts related to LTO.
- Fix gap between kernel end and module start on powerpc.
Reporting tools:
- The DSO filter shouldn't show samples in unresolved maps.
- Improve debuginfod support in various tools.
build ids:
- Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test' entry for that case.
perf test:
- Support for PERF_SAMPLE_WEIGHT_STRUCT.
- Add test case for PERF_SAMPLE_CODE_PAGE_SIZE.
- Shell based tests for 'perf daemon's commands ('start', 'stop, 'reconfig', 'list', etc).
- ARM cs-etm 'perf test' fixes.
- Add parse-metric memory bandwidth testcase.
Compiler related:
- Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used with -fpatchable-function-entry.
- Fix ARM64 build with gcc 11's -Wformat-overflow.
- Fix unaligned access in sample parsing test.
- Fix printf conversion specifier for IP addresses on arm64, s390 and powerpc.
Arch specific:
- Support exposing Performance Monitor Counter SPRs as part of extended regs on powerpc.
- Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn DDR, fix imx8mm ones.
- Fix common and uarch events for ARM64's A76 and Ampere eMag
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tool updates from Arnaldo Carvalho de Melo:
"New features:
- Support instruction latency in 'perf report', with both memory
latency (weight) and instruction latency information, users can
locate expensive load instructions and understand time spent in
different stages.
- Extend 'perf c2c' to display the number of loads which were blocked
by data or address conflict.
- Add 'perf stat' support for L2 topdown events in systems such as
Intel's Sapphire rapids server.
- Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a
sort key, for instance:
perf report --stdio --sort=comm,symbol,code_page_size
- New 'perf daemon' command to run long running sessions while
providing a way to control the enablement of events without
restarting a traditional 'perf record' session.
- Enable counting events for BPF programs in 'perf stat' just like
for other targets (tid, cgroup, cpu, etc), e.g.:
# perf stat -e ref-cycles,cycles -b 254 -I 1000
1.487903822 115,200 ref-cycles
1.487903822 86,012 cycles
2.489147029 80,560 ref-cycles
2.489147029 73,784 cycles
^C
The example above counts 'cycles' and 'ref-cycles' of BPF program
of id 254. It is similar to bpftool-prog-profile command, but more
flexible.
- Support the new layout for PERF_RECORD_MMAP2 to carry the DSO
build-id using infrastructure generalised from the eBPF subsystem,
removing the need for traversing the perf.data file to collect
build-ids at the end of 'perf record' sessions and helping with
long running sessions where binaries can get replaced in updates,
leading to possible mis-resolution of symbols.
- Support filtering by hex address in 'perf script'.
- Support DSO filter in 'perf script', like in other perf tools.
- Add namespaces support to 'perf inject'
- Add support for SDT (Dtrace Style Markers) events on ARM64.
perf record:
- Fix handling of eventfd() when draining a buffer in 'perf record'.
- Improvements to the generation of metadata events for pre-existing
threads (mmaps, comm, etc), speeding up the work done at the start
of system wide or per CPU 'perf record' sessions.
Hardware tracing:
- Initial support for tracing KVM with Intel PT.
- Intel PT fixes for IPC
- Support Intel PT PSB (synchronization packets) events.
- Automatically group aux-output events to overcome --filter syntax.
- Enable PERF_SAMPLE_DATA_SRC on ARMs SPE.
- Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0.
perf annotate TUI:
- Fix handling of 'k' ("show line number") hotkey
- Fix jump parsing for C++ code.
perf probe:
- Add protection to avoid endless loop.
cgroups:
- Avoid reading cgroup mountpoint multiple times, caching it.
- Fix handling of cgroup v1/v2 in mixed hierarchy.
Symbol resolving:
- Add OCaml symbol demangling.
- Further fixes for handling PE executables when using perf with Wine
and .exe/.dll files.
- Fix 'perf unwind' DSO handling.
- Resolve symbols against debug file first, to deal with artifacts
related to LTO.
- Fix gap between kernel end and module start on powerpc.
Reporting tools:
- The DSO filter shouldn't show samples in unresolved maps.
- Improve debuginfod support in various tools.
build ids:
- Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test'
entry for that case.
perf test:
- Support for PERF_SAMPLE_WEIGHT_STRUCT.
- Add test case for PERF_SAMPLE_CODE_PAGE_SIZE.
- Shell based tests for 'perf daemon's commands ('start', 'stop,
'reconfig', 'list', etc).
- ARM cs-etm 'perf test' fixes.
- Add parse-metric memory bandwidth testcase.
Compiler related:
- Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used
with -fpatchable-function-entry.
- Fix ARM64 build with gcc 11's -Wformat-overflow.
- Fix unaligned access in sample parsing test.
- Fix printf conversion specifier for IP addresses on arm64, s390 and
powerpc.
Arch specific:
- Support exposing Performance Monitor Counter SPRs as part of
extended regs on powerpc.
- Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn
DDR, fix imx8mm ones.
- Fix common and uarch events for ARM64's A76 and Ampere eMag"
* tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (148 commits)
perf buildid-cache: Don't skip 16-byte build-ids
perf buildid-cache: Add test for 16-byte build-id
perf symbol: Remove redundant libbfd checks
perf test: Output the sub testing result in cs-etm
perf test: Suppress logs in cs-etm testing
perf tools: Fix arm64 build error with gcc-11
perf intel-pt: Add documentation for tracing virtual machines
perf intel-pt: Split VM-Entry and VM-Exit branches
perf intel-pt: Adjust sample flags for VM-Exit
perf intel-pt: Allow for a guest kernel address filter
perf intel-pt: Support decoding of guest kernel
perf machine: Factor out machine__idle_thread()
perf machine: Factor out machines__find_guest()
perf intel-pt: Amend decoder to track the NR flag
perf intel-pt: Retain the last PIP packet payload as is
perf intel_pt: Add vmlaunch and vmresume as branches
perf script: Add branch types for VM-Entry and VM-Exit
perf auxtrace: Automatically group aux-output events
perf test: Fix unaligned access in sample parsing test
perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing
...
lsdir_bid_tail_filter() ignored any build-id that wasn't exactly 20
bytes. This worked only for SHA-1 build-ids. The build-id for a PE file
is always a 16-byte GUID and ELF files can also have MD5 or UUID
build-ids.
This fix changes the filter to allow build-ids between 16 and 20 bytes.
Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: http://lore.kernel.org/lkml/597788e4-661d-633f-857c-3de700115d02@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tests/shell/buildid.sh added an ELF executable with an MD5 build-id to
the perf debug cache but did not check whether the object was printed
by a subsequent call to "perf buildid-cache -l". It was being omitted
from the list.
A previous commit fixed the bug that left it out of the list. This adds
a test for it.
Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: https://lore.kernel.org/r/c08be235-7434-5208-5f21-e8c9a3265464@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This removes the redundant checks bfd_check_format() and
bfd_target_elf_flavour. They were previously checking different files.
Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: https://lore.kernel.org/r/94758ca1-0031-d7c6-6c6a-900fd77ef695@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The CoreSight testing contains sub cases, e.g. every CPU iterates the
possible conntected sinks and tests the paths between the associated ETM
with the found sink. Besides the per-thread testing, it also contains
system wide testing and snapshot testing.
To easier observe results for the sub cases, this patch introduces a new
function arm_cs_report(), it outputs the result as "PASS" or "FAIL" for
every sub case; and it records the error in the variable "glb_err" which
is used as the final return value when exits the testing.
Before:
# perf test 73 -v
73: Check Arm CoreSight trace data recording and synthesized samples:
--- start ---
test child forked, pid 17423
Recording trace (only user mode) with path: CPU0 => tmc_etf0
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
Recording trace (only user mode) with path: CPU0 => tmc_etr0
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
[...]
After:
# perf test 73 -v
73: Check Arm CoreSight trace data recording and synthesized samples:
--- start ---
test child forked, pid 17423
Recording trace (only user mode) with path: CPU0 => tmc_etf0
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
CoreSight path testing (CPU0 -> tmc_etf0): PASS
Recording trace (only user mode) with path: CPU0 => tmc_etr0
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
CoreSight path testing (CPU0 -> tmc_etr0): PASS
[...]
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Basil Eljuse <basil.eljuse@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
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: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: http://lore.kernel.org/lkml/20210215115944.535986-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
With the option '-v' for the verbose logs, "perf test" outputs tons of
logs for the CoreSight case, the logs are mainly introduced by the
decoding. And it outputs some trivial info from "perf record" command
and there have debugging info for CPU number and device name when
iterates between ETMs and sinks.
For a neat output format, this patch redirects the output logs to
"/dev/null", thus can avoid to flood logs. And it removes the redundant
log for CPU number and device name, which have already printed out the
relevant info in the function record_touch_file().
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Basil Eljuse <basil.eljuse@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
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: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: http://lore.kernel.org/lkml/20210215115944.535986-2-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add documentation to the perf-intel-pt man page for tracing virtual
machines.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-12-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Events record a single cpumode so the tools cannot handle a branch from
the host machine to a virtual machine, or vice versa. Split it in two so
that each branch can have a different cpumode.
E.g. host ip -> guest ip
becomes: host ip -> 0
0 -> guest ip
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-11-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Use the change of NR to detect whether an asynchronous branch is a VM-Exit.
Note VM-Entry is determined from the vmlaunch or vmresume instruction,
in which case, sample flags will show "VMentry" even if the VM-Entry fails.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-10-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Handling TIP.PGD for an address filter for a guest kernel is the same as a
host kernel, but user space decoding, and hence address filters, are not
supported.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-9-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The guest kernel can be found from any guest thread belonging to the guest
machine. The guest machine is associated with the current host process pid.
An idle thread (pid=tid=0) is created as a vehicle from which to find the
guest kernel map.
Decoding guest user space is not supported.
Synthesized samples just need the cpumode set for the guest.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Factor out machine__idle_thread() so it can be re-used for guest machines.
A thread is needed to find executable code, even for the guest kernel. To
avoid possible future pid number conflicts, the idle thread can be used.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20210218095801.19576-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
