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perf dso: Add reference count checking and accessor functions

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Add reference count checking to struct dso, this can help with
implementing correct reference counting discipline. To avoid
RC_CHK_ACCESS everywhere, add accessor functions for the variables in
struct dso.

The majority of the change is mechanical in nature and not easy to
split up.

Committer testing:

'perf test' up to this patch shows no regressions.

But:

  util/symbol.c: In function ‘dso__load_bfd_symbols’:
  util/symbol.c:1683:9: error: too few arguments to function ‘dso__set_adjust_symbols’
   1683 |         dso__set_adjust_symbols(dso);
        |         ^~~~~~~~~~~~~~~~~~~~~~~
  In file included from util/symbol.c:21:
  util/dso.h:268:20: note: declared here
    268 | static inline void dso__set_adjust_symbols(struct dso *dso, bool val)
        |                    ^~~~~~~~~~~~~~~~~~~~~~~
  make[6]: *** [/home/acme/git/perf-tools-next/tools/build/Makefile.build:106: /tmp/tmp.ZWHbQftdN6/util/symbol.o] Error 1
    MKDIR   /tmp/tmp.ZWHbQftdN6/tests/workloads/
  make[6]: *** Waiting for unfinished jobs....

This was updated:

  -       symbols__fixup_end(&dso->symbols, false);
  -       symbols__fixup_duplicate(&dso->symbols);
  -       dso->adjust_symbols = 1;
  +       symbols__fixup_end(dso__symbols(dso), false);
  +       symbols__fixup_duplicate(dso__symbols(dso));
  +       dso__set_adjust_symbols(dso);

But not build tested with BUILD_NONDISTRO and libbfd devel files installed
(binutils-devel on fedora).

Add the missing argument:

   	symbols__fixup_end(dso__symbols(dso), false);
   	symbols__fixup_duplicate(dso__symbols(dso));
  -	dso__set_adjust_symbols(dso);
  +	dso__set_adjust_symbols(dso, true);

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Chengen Du <chengen.du@canonical.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dima Kogan <dima@secretsauce.net>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Li Dong <lidong@vivo.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paran Lee <p4ranlee@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: zhaimingbing <zhaimingbing@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20240504213803.218974-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2024-05-04 14:38:01 -07:00
committed by Arnaldo Carvalho de Melo
parent 7a9418cf7f
commit ee756ef749
57 changed files with 1168 additions and 738 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
tools/perf/util/scripting-engines/trace-event-python.c
View File

@@ -393,10 +393,10 @@ static const char *get_dsoname(struct map *map)
struct dso *dso = map ? map__dso(map) : NULL;
if (dso) {
if (symbol_conf.show_kernel_path && dso->long_name)
dsoname = dso->long_name;
if (symbol_conf.show_kernel_path && dso__long_name(dso))
dsoname = dso__long_name(dso);
else
dsoname = dso->name;
dsoname = dso__name(dso);
}
return dsoname;
@@ -799,8 +799,9 @@ static void set_sym_in_dict(PyObject *dict, struct addr_location *al,
if (al->map) {
struct dso *dso = map__dso(al->map);
pydict_set_item_string_decref(dict, dso_field, _PyUnicode_FromString(dso->name));
build_id__sprintf(&dso->bid, sbuild_id);
pydict_set_item_string_decref(dict, dso_field,
_PyUnicode_FromString(dso__name(dso)));
build_id__sprintf(dso__bid(dso), sbuild_id);
pydict_set_item_string_decref(dict, dso_bid_field,
_PyUnicode_FromString(sbuild_id));
pydict_set_item_string_decref(dict, dso_map_start,
@@ -1246,14 +1247,14 @@ static int python_export_dso(struct db_export *dbe, struct dso *dso,
char sbuild_id[SBUILD_ID_SIZE];
PyObject *t;
build_id__sprintf(&dso->bid, sbuild_id);
build_id__sprintf(dso__bid(dso), sbuild_id);
t = tuple_new(5);
tuple_set_d64(t, 0, dso->db_id);
tuple_set_d64(t, 0, dso__db_id(dso));
tuple_set_d64(t, 1, machine->db_id);
tuple_set_string(t, 2, dso->short_name);
tuple_set_string(t, 3, dso->long_name);
tuple_set_string(t, 2, dso__short_name(dso));
tuple_set_string(t, 3, dso__long_name(dso));
tuple_set_string(t, 4, sbuild_id);
call_object(tables->dso_handler, t, "dso_table");
@@ -1273,7 +1274,7 @@ static int python_export_symbol(struct db_export *dbe, struct symbol *sym,
t = tuple_new(6);
tuple_set_d64(t, 0, *sym_db_id);
tuple_set_d64(t, 1, dso->db_id);
tuple_set_d64(t, 1, dso__db_id(dso));
tuple_set_d64(t, 2, sym->start);
tuple_set_d64(t, 3, sym->end);
tuple_set_s32(t, 4, sym->binding);