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Architectures can detect availability of extra registers at runtime so
use this more complete set for unwinding. This will include the VG
register on arm64 in a later commit.
If the function isn't implemented then PERF_REGS_MASK is returned and
there is no change.
Committer notes:
Added util/perf_regs.c to tools/perf/util/python-ext-sources so that
'perf test python' passes, i.e. the perf python binding has all the
symbols it needs, addressing:
$ perf test -v python
19: 'import perf' in python :
--- start ---
test child forked, pid 2037817
python usage test: "echo "import sys ; sys.path.append('/tmp/build/perf/python'); import perf" | '/usr/bin/python3' "
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: /tmp/build/perf/python/perf.cpython-310-x86_64-linux-gnu.so: undefined symbol: arch__user_reg_mask
test child finished with -1
---- end ----
'import perf' in python: FAILED!
$
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Brown <broonie@kernel.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: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220525154114.718321-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
44 lines
773 B
Plaintext
44 lines
773 B
Plaintext
#
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# List of files needed by perf python extension
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#
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# Each source file must be placed on its own line so that it can be
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# processed by Makefile and util/setup.py accordingly.
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#
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util/python.c
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../lib/ctype.c
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util/cap.c
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util/evlist.c
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util/evsel.c
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util/evsel_fprintf.c
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util/perf_event_attr_fprintf.c
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util/cpumap.c
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util/memswap.c
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util/mmap.c
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util/namespaces.c
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../lib/bitmap.c
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../lib/find_bit.c
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../lib/list_sort.c
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../lib/hweight.c
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../lib/string.c
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../lib/vsprintf.c
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util/thread_map.c
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util/util.c
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util/cgroup.c
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util/parse-branch-options.c
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util/rblist.c
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util/counts.c
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util/print_binary.c
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util/strlist.c
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util/trace-event.c
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../lib/rbtree.c
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util/string.c
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util/symbol_fprintf.c
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util/units.c
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util/affinity.c
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util/rwsem.c
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util/hashmap.c
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util/perf_regs.c
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util/pmu-hybrid.c
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util/fncache.c
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