On Wed, Oct 16, 2024 at 05:13:43PM -0700, Ian Rogers wrote: > These patches were originally on top of: > https://lore.kernel.org/lkml/20240924003720.617258-1-irogers@xxxxxxxxxx/ > 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. The patch series is now on top of: > https://lore.kernel.org/lkml/20241016235622.52166-1-irogers@xxxxxxxxxx/ > > In the Makefile code, and for `perf record --call-graph`, 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. This can be cleanup for another day. > > v3: Move PERF_HAVE_DWARF_REGS cleanup to follow up patch series. Add > build fix from patch series these changes are on top of. > v2: Instead of renaming PERF_HAVE_DWARF_REGS to PERF_HAVE_LIBDW_REGS, > remove it. > > Ian Rogers (11): > perf build: Fix LIBDW_DIR > 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 Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx> Thanks, Namhyung > > 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 | 47 +++++----------- > tools/perf/Makefile.perf | 2 +- > tools/perf/arch/arm/Makefile | 2 +- > tools/perf/arch/arm/util/Build | 2 +- > tools/perf/arch/arm64/Makefile | 2 +- > tools/perf/arch/arm64/util/Build | 2 +- > tools/perf/arch/csky/Makefile | 2 +- > tools/perf/arch/csky/util/Build | 2 +- > tools/perf/arch/loongarch/Makefile | 2 +- > tools/perf/arch/loongarch/util/Build | 2 +- > tools/perf/arch/mips/Makefile | 2 +- > tools/perf/arch/mips/util/Build | 2 +- > tools/perf/arch/powerpc/Makefile | 2 +- > .../perf/arch/powerpc/annotate/instructions.c | 4 +- > tools/perf/arch/powerpc/util/Build | 4 +- > tools/perf/arch/riscv/Makefile | 2 +- > tools/perf/arch/riscv/util/Build | 2 +- > tools/perf/arch/s390/Makefile | 2 +- > tools/perf/arch/s390/util/Build | 2 +- > tools/perf/arch/sh/Makefile | 2 +- > tools/perf/arch/sh/util/Build | 2 +- > tools/perf/arch/sparc/Makefile | 2 +- > tools/perf/arch/sparc/util/Build | 2 +- > tools/perf/arch/x86/Makefile | 2 +- > tools/perf/arch/x86/annotate/instructions.c | 2 +- > tools/perf/arch/x86/util/Build | 2 +- > tools/perf/arch/xtensa/Makefile | 2 +- > 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, 154 insertions(+), 259 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 > > -- > 2.47.0.105.g07ac214952-goog >
