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Date:   Tue, 12 Apr 2022 08:48:13 -0700
Message-Id: <20220412154817.2728324-1-irogers@google.com>
Mime-Version: 1.0
Subject: [PATCH v2 0/4] Tidy up symbol end fixup
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>,
        "=?UTF-8?q?Martin=20Li=C5=A1ka?=" <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>
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Precedence: bulk

Fixing up more symbol ends as introduced in:
https://lore.kernel.org/lkml/20220317135536.805-1-mpetlan@redhat.com/
caused perf annotate to run into memory limits - every symbol holds
all the disassembled code in the annotation, and so making symbols
ends further away dramatically increased memory usage (40MB to
 >1GB). Modify the symbol end logic so that special kernel cases aren't
applied in the common case.

v2. Drops a merged patch. Fixes a build issue with libbfd enabled.

Ian Rogers (4):
  perf symbols: Always do architecture specific fixups
  perf symbols: Add is_kernel argument to fixup end
  perf symbol: By default only fix zero length symbols
  perf symbols: More specific architecture end fixing

 tools/perf/arch/arm64/util/machine.c   | 14 +++++++++-----
 tools/perf/arch/powerpc/util/machine.c | 10 +++++++---
 tools/perf/arch/s390/util/machine.c    | 12 ++++++++----
 tools/perf/util/symbol-elf.c           |  2 +-
 tools/perf/util/symbol.c               | 16 +++++++++-------
 tools/perf/util/symbol.h               |  4 ++--
 6 files changed, 36 insertions(+), 22 deletions(-)

-- 
2.35.1.1178.g4f1659d476-goog