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| author | Arnaldo Carvalho de Melo | 2019-06-13 22:35:09 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2019-06-17 20:57:19 +0200 |
| commit | a4066d64d9391a734ee0e49c8d2757f5685013b4 (patch) | |
| tree | 8c98ad0c2e6980decb889bd04447e0206cc65c77 /tools/perf/builtin-trace.c | |
| parent | tools build: Check if gettid() is available before providing helper (diff) | |
| download | kernel-qcow2-linux-a4066d64d9391a734ee0e49c8d2757f5685013b4.tar.gz kernel-qcow2-linux-a4066d64d9391a734ee0e49c8d2757f5685013b4.tar.xz kernel-qcow2-linux-a4066d64d9391a734ee0e49c8d2757f5685013b4.zip | |
perf trace: Fix exclusion of not available syscall names from selector list
We were just skipping the syscalls not available in a particular
architecture without reflecting this in the number of entries in the
ev_qualifier_ids.nr variable, fix it.
This was done with the most minimalistic way, reusing the index variable
'i', a followup patch will further clean this by making 'i' renamed to
'nr_used' and using 'nr_allocated' in a few more places.
Reported-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Fixes: 04c41bcb862b ("perf trace: Skip unknown syscalls when expanding strace like syscall groups")
Link: https://lkml.kernel.org/r/20190613181514.GC1402@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 12f5ad98f8c1..fa9eb467eb4c 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1527,9 +1527,9 @@ static int trace__read_syscall_info(struct trace *trace, int id) static int trace__validate_ev_qualifier(struct trace *trace) { - int err = 0, i; + int err = 0; bool printed_invalid_prefix = false; - size_t nr_allocated; + size_t nr_allocated, i; struct str_node *pos; trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); @@ -1574,7 +1574,7 @@ matches: id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); if (id < 0) break; - if (nr_allocated == trace->ev_qualifier_ids.nr) { + if (nr_allocated == i) { void *entries; nr_allocated += 8; @@ -1587,11 +1587,11 @@ matches: } trace->ev_qualifier_ids.entries = entries; } - trace->ev_qualifier_ids.nr++; trace->ev_qualifier_ids.entries[i++] = id; } } + trace->ev_qualifier_ids.nr = i; out: if (printed_invalid_prefix) pr_debug("\n"); |