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author | Adrian Hunter <adrian.hunter@intel.com> | 2023-04-03 18:48:30 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 09:39:57 -0300 |
commit | 1f9f33ccf0320be21703d9195dd2b36a1c9a07cb (patch) | |
tree | ea75303a6ea8b71212e50705ecd39b3ea092fffd /tools/perf/scripts/python/exported-sql-viewer.py | |
parent | 34fb60400e3257f3a046ee8e6b49242cf65cc1a3 (diff) | |
download | linux-1f9f33ccf0320be21703d9195dd2b36a1c9a07cb.tar.gz linux-1f9f33ccf0320be21703d9195dd2b36a1c9a07cb.tar.bz2 linux-1f9f33ccf0320be21703d9195dd2b36a1c9a07cb.zip |
perf auxtrace: Fix address filter entire kernel size
kallsyms is not completely in address order.
In find_entire_kern_cb(), calculate the kernel end from the maximum
address not the last symbol.
Example:
Before:
$ sudo cat /proc/kallsyms | grep ' [twTw] ' | tail -1
ffffffffc00b8bd0 t bpf_prog_6deef7357e7b4530 [bpf]
$ sudo cat /proc/kallsyms | grep ' [twTw] ' | sort | tail -1
ffffffffc15e0cc0 t iwl_mvm_exit [iwlmvm]
$ perf.d093603a05aa record -v --kcore -e intel_pt// --filter 'filter *' -- uname |& grep filter
Address filter: filter 0xffffffff93200000/0x2ceba000
After:
$ perf.8fb0f7a01f8e record -v --kcore -e intel_pt// --filter 'filter *' -- uname |& grep filter
Address filter: filter 0xffffffff93200000/0x2e3e2000
Fixes: 1b36c03e356936d6 ("perf record: Add support for using symbols in address filters")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230403154831.8651-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions