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author | 2023-03-20 14:22:35 -0700 | |
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committer | 2023-04-04 16:41:57 -0300 | |
commit | 63df0e4bc368adbd12ed70ed4789d8d52d65661d (patch) | |
tree | 8d023dd3ba21bc4306f672aa2c0b5c8b7866959e /tools/perf/util/cs-etm.c | |
parent | perf maps: Add functions to access maps (diff) | |
download | linux-63df0e4bc368adbd12ed70ed4789d8d52d65661d.tar.gz linux-63df0e4bc368adbd12ed70ed4789d8d52d65661d.tar.bz2 linux-63df0e4bc368adbd12ed70ed4789d8d52d65661d.zip |
perf map: Add accessor for dso
Later changes will add reference count checking for struct map, with
dso being the most frequently accessed variable. Add an accessor so
that the reference count check is only necessary in one place.
Additional changes:
- add a dso variable to avoid repeated map__dso calls.
- in builtin-mem.c dump_raw_samples, code only partially tested for
dso == NULL. Make the possibility of NULL consistent.
- in thread.c thread__memcpy fix use of spaces and use tabs.
Committer notes:
Did missing conversions on these files:
tools/perf/arch/powerpc/util/skip-callchain-idx.c
tools/perf/arch/powerpc/util/sym-handling.c
tools/perf/ui/browsers/hists.c
tools/perf/ui/gtk/annotate.c
tools/perf/util/cs-etm.c
tools/perf/util/thread.c
tools/perf/util/unwind-libunwind-local.c
tools/perf/util/unwind-libunwind.c
Signed-off-by: Ian Rogers <irogers@google.com>
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: Stephane Eranian <eranian@google.com>
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/r/20230320212248.1175731-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cs-etm.c')
-rw-r--r-- | tools/perf/util/cs-etm.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 94e2d02009eb..528a7fb066cf 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -865,6 +865,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u8 trace_chan_id, struct thread *thread; struct machine *machine; struct addr_location al; + struct dso *dso; struct cs_etm_traceid_queue *tidq; if (!etmq) @@ -883,27 +884,29 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u8 trace_chan_id, thread = etmq->etm->unknown_thread; } - if (!thread__find_map(thread, cpumode, address, &al) || !al.map->dso) + dso = map__dso(al.map); + + if (!thread__find_map(thread, cpumode, address, &al) || !dso) return 0; - if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR && - dso__data_status_seen(al.map->dso, DSO_DATA_STATUS_SEEN_ITRACE)) + if (dso->data.status == DSO_DATA_STATUS_ERROR && + dso__data_status_seen(dso, DSO_DATA_STATUS_SEEN_ITRACE)) return 0; offset = al.map->map_ip(al.map, address); map__load(al.map); - len = dso__data_read_offset(al.map->dso, machine, offset, buffer, size); + len = dso__data_read_offset(dso, machine, offset, buffer, size); if (len <= 0) { ui__warning_once("CS ETM Trace: Missing DSO. Use 'perf archive' or debuginfod to export data from the traced system.\n" " Enable CONFIG_PROC_KCORE or use option '-k /path/to/vmlinux' for kernel symbols.\n"); - if (!al.map->dso->auxtrace_warned) { + if (!dso->auxtrace_warned) { pr_err("CS ETM Trace: Debug data not found for address %#"PRIx64" in %s\n", address, - al.map->dso->long_name ? al.map->dso->long_name : "Unknown"); - al.map->dso->auxtrace_warned = true; + dso->long_name ? dso->long_name : "Unknown"); + dso->auxtrace_warned = true; } return 0; } |