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perf thread: Introduce thread__find_symbol()

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Out of thread__find_addr_location(..., MAP__FUNCTION, ...), idea here is to
continue removing references to MAP__{FUNCTION,VARIABLE} ahead of
getting both types of symbols in the same rbtree, as various places do
two lookups, looking first at MAP__FUNCTION, then at MAP__VARIABLE.

So thread__find_symbol() will eventually do just that, and 'struct
symbol' will have the symbol type, for code that cares about that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-n7528en9e08yd3flzmb26tth@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2018-04-24 11:24:49 -03:00
parent ea40b6d322
commit 4546263d72
9 changed files with 26 additions and 27 deletions
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9
tools/perf/builtin-trace.c
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@@ -2024,8 +2024,7 @@ static int trace__pgfault(struct trace *trace,
if (trace->summary_only)
goto out;
thread__find_addr_location(thread, sample->cpumode, MAP__FUNCTION,
sample->ip, &al);
thread__find_symbol(thread, sample->cpumode, sample->ip, &al);
trace__fprintf_entry_head(trace, thread, 0, true, sample->time, trace->output);
@@ -2037,12 +2036,10 @@ static int trace__pgfault(struct trace *trace,
fprintf(trace->output, "] => ");
thread__find_addr_location(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, &al);
__thread__find_symbol(thread, sample->cpumode, MAP__VARIABLE, sample->addr, &al);
if (!al.map) {
thread__find_addr_location(thread, sample->cpumode,
MAP__FUNCTION, sample->addr, &al);
thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
if (al.map)
map_type = 'x';