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charset="UTF-8" Discussion of improved Rust demangling started with: https://lore.kernel.org/lkml/jgxfnphfo3nzlfipnuuzdlfc4ehbr2tnh2evz3mdhynd6wvrsu@fcz6vrvepybb/ that led to implementing a Rust v0 demangler: https://lore.kernel.org/lkml/20250129193037.573431-1-irogers@google.com/ Discussion on that patch series led to the rust-lang issue: https://github.com/rust-lang/rust/issues/60705 where the pre-existing Rust C demangler, authored by github.com/arielb1, was mentioned. There wasn't progress on that issue and so I've pulled that work into perf as discussed on the issue. Ian Rogers (6): perf demangle-rust: Add rustc-demangle C demangler perf symbol-elf: Integrate rust-v0 demangling perf demangle-rust: Remove previous legacy rust decoder perf test demangle-rust: Add Rust demangling test perf test demangle-java: Switch to using dso__demangle_sym perf test demangle-ocaml: Switch to using dso__demangle_sym tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/demangle-java-test.c | 17 +- tools/perf/tests/demangle-ocaml-test.c | 7 +- tools/perf/tests/demangle-rust-v0-test.c | 74 + tools/perf/tests/tests.h | 1 + tools/perf/util/Build | 5 +- tools/perf/util/demangle-rust-v0.c | 2035 ++++++++++++++++++++++ tools/perf/util/demangle-rust-v0.h | 81 + tools/perf/util/demangle-rust.c | 269 --- tools/perf/util/demangle-rust.h | 8 - tools/perf/util/symbol-elf.c | 49 +- 12 files changed, 2243 insertions(+), 305 deletions(-) create mode 100644 tools/perf/tests/demangle-rust-v0-test.c create mode 100644 tools/perf/util/demangle-rust-v0.c create mode 100644 tools/perf/util/demangle-rust-v0.h delete mode 100644 tools/perf/util/demangle-rust.c delete mode 100644 tools/perf/util/demangle-rust.h -- 2.49.0.901.g37484f566f-goog