linux-kernel - [PATCH 0/3] perf tools: Tidy up symbol end fixup (v3)

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Message-Id: <20220416004048.1514900-1-namhyung@kernel.org>
Date:   Fri, 15 Apr 2022 17:40:45 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>, Ian Rogers <irogers@...gle.com>,
        Michael Petlan <mpetlan@...hat.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
        Song Liu <songliubraving@...com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        John Garry <john.garry@...wei.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Leo Yan <leo.yan@...aro.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Heiko Carstens <hca@...ux.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-s390@...r.kernel.org
Subject: [PATCH 0/3] perf tools: Tidy up symbol end fixup (v3)

Hello,

This work is a follow-up of Ian's previous one at
  https://lore.kernel.org/all/20220412154817.2728324-1-irogers@google.com/

Fixing up more symbol ends as introduced in:
  https://lore.kernel.org/lkml/20220317135536.805-1-mpetlan@redhat.com/

it 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 fixup logic so that special kernel cases aren't
applied in the common case.

v3 changes)
 * rename is_kernel to is_kallsyms
 * move the logic to generic function
 * remove arch-specific functions

Thanks,
Namhyung


Namhyung Kim (3):
  perf symbol: Pass is_kallsyms to symbols__fixup_end()
  perf symbol: Update symbols__fixup_end()
  perf symbol: Remove arch__symbols__fixup_end()

 tools/perf/arch/arm64/util/machine.c   | 21 ---------------
 tools/perf/arch/powerpc/util/Build     |  1 -
 tools/perf/arch/powerpc/util/machine.c | 25 -----------------
 tools/perf/arch/s390/util/machine.c    | 16 -----------
 tools/perf/util/symbol-elf.c           |  2 +-
 tools/perf/util/symbol.c               | 37 +++++++++++++++++++-------
 tools/perf/util/symbol.h               |  3 +--
 7 files changed, 29 insertions(+), 76 deletions(-)
 delete mode 100644 tools/perf/arch/powerpc/util/machine.c


base-commit: 41204da4c16071be9090940b18f566832d46becc
-- 
2.36.0.rc0.470.gd361397f0d-goog