From: Ian Rogers <irogers@google.com>
To: "John Garry" <john.garry@huawei.com>,
"Will Deacon" <will@kernel.org>,
"Mathieu Poirier" <mathieu.poirier@linaro.org>,
"Leo Yan" <leo.yan@linaro.org>,
"Peter Zijlstra" <peterz@infradead.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Arnaldo Carvalho de Melo" <acme@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
"Jiri Olsa" <jolsa@kernel.org>,
"Namhyung Kim" <namhyung@kernel.org>,
"James Clark" <james.clark@arm.com>,
"Alexandre Truong" <alexandre.truong@arm.com>,
"German Gomez" <german.gomez@arm.com>,
"Ian Rogers" <irogers@google.com>,
"Dave Marchevsky" <davemarchevsky@fb.com>,
"Song Liu" <songliubraving@fb.com>,
"Ravi Bangoria" <ravi.bangoria@amd.com>,
"Li Huafei" <lihuafei1@huawei.com>,
"Martin Liška" <mliska@suse.cz>,
"William Cohen" <wcohen@redhat.com>,
"Riccardo Mancini" <rickyman7@gmail.com>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Thomas Richter" <tmricht@linux.ibm.com>,
"Lexi Shao" <shaolexi@huawei.com>,
"Remi Bernon" <rbernon@codeweavers.com>,
"Michael Petlan" <mpetlan@redhat.com>,
"Denis Nikitin" <denik@chromium.org>,
linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>
Subject: [PATCH v2 3/4] perf symbol: By default only fix zero length symbols
Date: Tue, 12 Apr 2022 08:48:16 -0700 [thread overview]
Message-ID: <20220412154817.2728324-4-irogers@google.com> (raw)
In-Reply-To: <20220412154817.2728324-1-irogers@google.com>
For architectures without a specific end fixup (ie not arm64, powerpc,
s390) only fix up the end of zero length symbols. This reverts the
behavior introduced by:
https://lore.kernel.org/lkml/20220317135536.805-1-mpetlan@redhat.com/
where non-zero length symbols were expanded to the start of the current
symbol.
---
tools/perf/util/symbol.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index cc4c46563802..62163b45cf3f 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -104,7 +104,8 @@ static int prefix_underscores_count(const char *str)
void __weak arch__symbols__fixup_end(struct symbol *p, struct symbol *c,
bool is_kernel __maybe_unused)
{
- if (p->end == p->start || p->end != c->start)
+ /* If the previous symbol is zero length, make its end the start of the current symbol. */
+ if (p->end == p->start)
p->end = c->start;
}
--
2.35.1.1178.g4f1659d476-goog
next prev parent reply other threads:[~2022-04-12 15:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-12 15:48 [PATCH v2 0/4] Tidy up symbol end fixup Ian Rogers
2022-04-12 15:48 ` [PATCH v2 1/4] perf symbols: Always do architecture specific fixups Ian Rogers
2022-04-12 15:48 ` [PATCH v2 2/4] perf symbols: Add is_kernel argument to fixup end Ian Rogers
2022-04-12 15:48 ` Ian Rogers [this message]
2022-04-12 15:48 ` [PATCH v2 4/4] perf symbols: More specific architecture end fixing Ian Rogers
2022-04-12 16:20 ` [PATCH v2 0/4] Tidy up symbol end fixup Ian Rogers
2022-04-12 22:12 ` Namhyung Kim
2022-04-12 23:48 ` Ian Rogers
2022-04-13 20:28 ` Namhyung Kim
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