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Message-Id: <20240924160418.1391100-1-irogers@google.com> Date: Tue, 24 Sep 2024 09:04:07 -0700 From: Ian Rogers <irogers@...gle.com> To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, Kan Liang <kan.liang@...ux.intel.com>, John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>, James Clark <james.clark@...aro.org>, Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...ux.dev>, Guo Ren <guoren@...nel.org>, Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, Nick Terrell <terrelln@...com>, Guilherme Amadio <amadio@...too.org>, Changbin Du <changbin.du@...wei.com>, "Steinar H. Gunderson" <sesse@...gle.com>, "Masami Hiramatsu (Google)" <mhiramat@...nel.org>, Aditya Gupta <adityag@...ux.ibm.com>, Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, Masahiro Yamada <masahiroy@...nel.org>, Huacai Chen <chenhuacai@...nel.org>, Bibo Mao <maobibo@...ngson.cn>, Kajol Jain <kjain@...ux.ibm.com>, Anup Patel <anup@...infault.org>, Shenlin Liang <liangshenlin@...incomputing.com>, Atish Patra <atishp@...osinc.com>, Oliver Upton <oliver.upton@...ux.dev>, Chen Pei <cp0613@...ux.alibaba.com>, Dima Kogan <dima@...retsauce.net>, Alexander Lobakin <aleksander.lobakin@...el.com>, "David S. Miller" <davem@...emloft.net>, Przemek Kitszel <przemyslaw.kitszel@...el.com>, linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, Yang Jihong <yangjihong@...edance.com> Subject: [PATCH v1 00/11] Libdw/dwarf build clean up There patches are on top of: https://lore.kernel.org/lkml/20240924003720.617258-1-irogers@google.com/ where it was pointed out that a lot of the libdw conditional compilation was due to features that have now been standard for 10 or 15 years. The patches remove the conditional compilation assuming the features are in libdw where the feature test is expanded to check there pressence. In the Makefile code dwarf tends to mean unwind or libdw support for dwarf things. To make it clearer when dwarf really just means libdw numerous build variables and defines are renamed. There is some tech debt in the changes as perf check still reports the values using the old name and for features that are no longer tested. Ian Rogers (11): perf build: Rename NO_DWARF to NO_LIBDW perf build: Remove defined but never used variable perf build: Rename test-dwarf to test-libdw perf build: Combine libdw-dwarf-unwind into libdw feature tests perf build: Combine test-dwarf-getlocations into test-libdw perf build: Combine test-dwarf-getcfi into test-libdw perf probe: Move elfutils support check to libdw check perf libdw: Remove unnecessary defines perf build: Rename HAVE_DWARF_SUPPORT to HAVE_LIBDW_SUPPORT perf build: Rename CONFIG_DWARF to CONFIG_LIBDW perf build: Rename PERF_HAVE_DWARF_REGS to PERF_HAVE_LIBDW_REGS tools/build/Makefile.feature | 11 +--- tools/build/feature/Makefile | 24 ++------ tools/build/feature/test-all.c | 16 +----- tools/build/feature/test-dwarf.c | 11 ---- tools/build/feature/test-dwarf_getcfi.c | 9 --- tools/build/feature/test-dwarf_getlocations.c | 13 ----- tools/build/feature/test-libdw-dwarf-unwind.c | 14 ----- tools/build/feature/test-libdw.c | 56 ++++++++++++++++++ tools/perf/Documentation/perf-check.txt | 6 +- tools/perf/Makefile.config | 57 ++++++------------- tools/perf/Makefile.perf | 2 +- tools/perf/arch/arm/Makefile | 4 +- tools/perf/arch/arm/util/Build | 2 +- tools/perf/arch/arm64/Makefile | 4 +- tools/perf/arch/arm64/util/Build | 2 +- tools/perf/arch/csky/Makefile | 4 +- tools/perf/arch/csky/util/Build | 2 +- tools/perf/arch/loongarch/Makefile | 4 +- tools/perf/arch/loongarch/util/Build | 2 +- tools/perf/arch/mips/Makefile | 4 +- tools/perf/arch/mips/util/Build | 2 +- tools/perf/arch/powerpc/Makefile | 4 +- .../perf/arch/powerpc/annotate/instructions.c | 4 +- tools/perf/arch/powerpc/util/Build | 4 +- tools/perf/arch/riscv/Makefile | 4 +- tools/perf/arch/riscv/util/Build | 2 +- tools/perf/arch/s390/Makefile | 4 +- tools/perf/arch/s390/util/Build | 2 +- tools/perf/arch/sh/Makefile | 4 +- tools/perf/arch/sh/util/Build | 2 +- tools/perf/arch/sparc/Makefile | 4 +- tools/perf/arch/sparc/util/Build | 2 +- tools/perf/arch/x86/Makefile | 4 +- tools/perf/arch/x86/annotate/instructions.c | 2 +- tools/perf/arch/x86/util/Build | 2 +- tools/perf/arch/xtensa/Makefile | 4 +- tools/perf/arch/xtensa/util/Build | 2 +- tools/perf/builtin-annotate.c | 2 +- tools/perf/builtin-check.c | 6 +- tools/perf/builtin-probe.c | 14 ++--- tools/perf/builtin-report.c | 4 +- tools/perf/util/Build | 12 ++-- tools/perf/util/annotate-data.h | 8 +-- tools/perf/util/debuginfo.h | 6 +- tools/perf/util/disasm.c | 4 +- tools/perf/util/disasm.h | 4 +- tools/perf/util/dwarf-aux.c | 6 -- tools/perf/util/dwarf-aux.h | 54 ------------------ tools/perf/util/genelf.c | 4 +- tools/perf/util/genelf.h | 2 +- tools/perf/util/include/dwarf-regs.h | 6 +- tools/perf/util/probe-event.c | 4 +- tools/perf/util/probe-finder.c | 6 -- tools/perf/util/probe-finder.h | 6 +- 54 files changed, 168 insertions(+), 279 deletions(-) delete mode 100644 tools/build/feature/test-dwarf.c delete mode 100644 tools/build/feature/test-dwarf_getcfi.c delete mode 100644 tools/build/feature/test-dwarf_getlocations.c delete mode 100644 tools/build/feature/test-libdw-dwarf-unwind.c create mode 100644 tools/build/feature/test-libdw.c -- 2.46.0.792.g87dc391469-goog
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