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AJvYcCU3wOV3UPQ3pfHya6RWwCH2lPhf7yZvJGR9wOv8EFm/jvYAwAXsxhNL1y/+kKwD4WM2Mdqw@lists.linux.dev X-Gm-Message-State: AOJu0YydJRHLro9DpnT6t47pDjOSDNybgwOOY5Di3K2Ef1rdF2ZI1/X/ yRgf7I+ekYPBEdUH+wdiT6Vivmz2OjGQEple+bdt4GILlzoZ9nAa5hlI4TR7QiQ6TIQwb9Qguh4 mH7OAoA== X-Google-Smtp-Source: AGHT+IEwoN0N6+nJ6vqr/dgRzJLp6ISNYWD1HN7A2s+gg7YV9C0xR0d2OaoIaTgW058JKbZw1oATFTbdIpRF X-Received: from pjbsm11.prod.google.com ([2002:a17:90b:2e4b:b0:301:2a0f:b03d]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1346:b0:301:1c11:aa74 with SMTP id 98e67ed59e1d1-30a333530c8mr307400a91.28.1745953148279; Tue, 29 Apr 2025 11:59:08 -0700 (PDT) Date: Tue, 29 Apr 2025 11:58:32 -0700 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.49.0.901.g37484f566f-goog Message-ID: <20250429185839.1807005-1-irogers@google.com> Subject: [PATCH v1 0/6] Use rustc-demangle for Rust demangling From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , "=?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?=" , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , James Clark , Howard Chu , Jiapeng Chong , Ravi Bangoria , "Masami Hiramatsu (Google)" , Stephen Brennan , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, rust-for-linux@vger.kernel.org, llvm@lists.linux.dev, Daniel Xu Content-Type: text/plain; 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