From nobody Sat Feb 7 08:27:50 2026 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA2181B87CE for ; Sat, 11 Jan 2025 20:29:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736627342; cv=none; b=RCjtxRLPMf3XAwop6WcP32zHxjl0D17qVYJ9n2Aftc9HualElydtcgpHeAh736hMDJDjmwRq5Tlm6KyL0h/LWrBesv+nAGNBniX2Vpoll5PhA8qDxqiVDmDr4/0klMRLd0xkqq6oVAEwpPqmzm28jg400W3OMctoyR924SooNzc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736627342; c=relaxed/simple; bh=vBpZoAJV5ZOTYmr23Y1WVIS7/yi5sM9Ci/vypXLjlr4=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=kuLT7wfjEFar8U8sSjl9fnqcjuvLhRlfy+slgbFYDHLUd3GfsSeXrINZRl79oohFyI0AWtKpbmNnUJ9GeFrtZvHQc9KMRdW3p0KxjBN1OGglKwlhHmrRF9DblMZpLTeZVLMl9y976HAPno7uNHGZDNHBbz81bCjyq2Bs0GnCacM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=3ckXQq0g; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="3ckXQq0g" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-e02fff66a83so6139112276.0 for ; Sat, 11 Jan 2025 12:29:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1736627340; x=1737232140; darn=vger.kernel.org; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=ERQ++MSZHNKVH6KxsLg8v8E2btrNQhdFMhM0Mn52wJs=; b=3ckXQq0g3NMfa4Qx+VBqBEHggYb5C4TF3lXBgmRSlELdUF216d2+dHV3zRv5rDdrJ6 ++V6kJsDm6wLMVUOBcxrJRWVbbP3jaQ3Sl54uv1ktqg8BQ6hyAPiUksAbCEigPfuaW2n PhaSp+3cbSAHjjv6PaTh97XXFo4iZEETU4rTG2HTr1kw4SOdqjwCdC1aIqwRkxvwyuGn +hc6SHuBQGo7kvCxSMSHLUFOUaF3yUarx8VwICIzDYoRYKrK2ZXwWQWIctTtAHLk7O1f EVUloLlCYTRmBZR7lH+EuWGBuXCyDAQlL51Ir+/wHF3fv/asnaDU5Jm9XF3801HVgcS7 Wj+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736627340; x=1737232140; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ERQ++MSZHNKVH6KxsLg8v8E2btrNQhdFMhM0Mn52wJs=; b=HyZ7vkmjztVekcy9ZV3dGXYxZz0p6JOEmKNMo4ZhrQJS9QtNuBbKmV48rEyo10KZi3 vU6cWY03wvvupyrr4hGnXGFWlZa94Fz4OXUSFUTHQnRF9Oy0GNTO03rBiSrlPRip0QDq z5zGIncFqwVlFVHZWcDF690S3J6cpdwGzgBPbGYSJVYJZVuUYARhR0S9ALElC+iQbHzX loFnw/oZCoku3e4l+RLomzxHSd712N37BM9JMtztt6aeD7IV5THXijGgg7hv7XfFcI0P oVUC9qG/nh/+svAlzF9Hdvni/iVpjeOYRzoDhyLgzPXc+u6DlIRvFUP+erH0AAuTjY8u qcTA== X-Forwarded-Encrypted: i=1; AJvYcCXWAhrY/+8QNCP36NF12kwYJB4r6Sn6i34FugDtvx2OP7cFi9atgmKz+m3BMum6srf0eESJKocmcGdxn10=@vger.kernel.org X-Gm-Message-State: AOJu0YzhGADHCrq3HjFeC5xy/gBewLMpY/eHIwjbi2PFpZ5IGUC+w3MU FPHGA/l9UrjGvjvYsiYrwbfj751WMjfq3ACHUb8BaC6E7GxgYTEs3fwkd5LF2QwRtINsxR6cNv2 tlCOCqw== X-Google-Smtp-Source: AGHT+IE+viIYhxxDMKQTKGNKXQajHZQ7KQZoNknjBKnErH9SVvadqr4nAEWY311kOZ7fzckNDI8TKsKISW/4 X-Received: from irogers.svl.corp.google.com ([2620:15c:2c5:11:8807:d7c5:bb27:35fc]) (user=irogers job=sendgmr) by 2002:a25:6cd7:0:b0:e39:78c0:3da with SMTP id 3f1490d57ef6-e54edf1b3c2mr36379276.2.1736627339423; Sat, 11 Jan 2025 12:28:59 -0800 (PST) Date: Sat, 11 Jan 2025 12:28:50 -0800 In-Reply-To: <20250111202851.1075338-1-irogers@google.com> Message-Id: <20250111202851.1075338-3-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250111202851.1075338-1-irogers@google.com> X-Mailer: git-send-email 2.47.1.613.gc27f4b7a9f-goog Subject: [PATCH v1 2/3] perf build: Remove libiberty support 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 , Aditya Gupta , Athira Rajeev , Charlie Jenkins , James Clark , "Steinar H. Gunderson" , Changbin Du , Ravi Bangoria , Howard Chu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" libiberty is license incompatible with perf and building requires the BUILD_NONDISTRO=3D1 build flag. libiberty is used for HAVE_CPLUS_DEMANGLE_SUPPORT. Remove the code to simplify the code base as it can't be distributed. Remove the BUILD_NONDISTRO build flag and test as they no longer enable/disable support. Signed-off-by: Ian Rogers --- tools/perf/Makefile.config | 12 ------------ tools/perf/Makefile.perf | 11 ++++------- tools/perf/tests/make | 2 -- tools/perf/util/demangle-cxx.cpp | 13 +------------ tools/perf/util/symbol-elf.c | 13 ------------- 5 files changed, 5 insertions(+), 46 deletions(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 0844a797d30a..3b827eba53c0 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -936,18 +936,6 @@ ifndef NO_DEMANGLE CXXFLAGS +=3D -DHAVE_CXA_DEMANGLE_SUPPORT $(call detected,CONFIG_CXX_DEMANGLE) endif - ifdef BUILD_NONDISTRO - ifeq ($(filter -liberty,$(EXTLIBS)),) - $(call feature_check,cplus-demangle) - ifeq ($(feature-cplus-demangle), 1) - EXTLIBS +=3D -liberty - endif - endif - ifneq ($(filter -liberty,$(EXTLIBS)),) - CFLAGS +=3D -DHAVE_CPLUS_DEMANGLE_SUPPORT - CXXFLAGS +=3D -DHAVE_CPLUS_DEMANGLE_SUPPORT - endif - endif endif =20 ifndef NO_LZMA diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index a449d0015536..008cee9d637a 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -123,9 +123,6 @@ include ../scripts/utilities.mak # # Set BUILD_BPF_SKEL to 0 to override BUILD_BPF_SKEL and not build BPF ske= letons # -# Define BUILD_NONDISTRO to enable building an linking against libbfd and -# libiberty distribution license incompatible libraries. -# # Define EXTRA_TESTS to enable building extra tests useful mainly to perf # developers, such as: # x86 instruction decoder - new instructions test @@ -294,10 +291,10 @@ LIBSYMBOL_DIR =3D $(srctree)/tools/lib/symbol/ LIBPERF_DIR =3D $(srctree)/tools/lib/perf/ DOC_DIR =3D $(srctree)/tools/perf/Documentation/ =20 -# Set FEATURE_TESTS to 'all' so all possible feature checkers are executed. -# Without this setting the output feature dump file misses some features, = for -# example, liberty. Select all checkers so we won't get an incomplete feat= ure -# dump file. +# Set FEATURE_TESTS to 'all' so all possible feature checkers are +# executed. Without this setting the output feature dump file misses +# some features. Select all checkers so we won't get an incomplete +# feature dump file. ifeq ($(config),1) ifdef MAKECMDGOALS ifeq ($(filter feature-dump,$(MAKECMDGOALS)),feature-dump) diff --git a/tools/perf/tests/make b/tools/perf/tests/make index 0ee94caf9ec1..dfe968413782 100644 --- a/tools/perf/tests/make +++ b/tools/perf/tests/make @@ -68,7 +68,6 @@ python_perf_so :=3D $(shell $(MAKE) python_perf_target|gr= ep "Target is:"|awk '{pri make_clean_all :=3D clean all make_python_perf_so :=3D $(python_perf_so) make_debug :=3D DEBUG=3D1 -make_nondistro :=3D BUILD_NONDISTRO=3D1 make_extra_tests :=3D EXTRA_TESTS=3D1 make_jevents_all :=3D JEVENTS_ARCH=3Dall make_no_bpf_skel :=3D BUILD_BPF_SKEL=3D0 @@ -138,7 +137,6 @@ MAKE_F :=3D $(MAKE) -f $(MK) endif run +=3D make_python_perf_so run +=3D make_debug -run +=3D make_nondistro run +=3D make_extra_tests run +=3D make_jevents_all run +=3D make_no_bpf_skel diff --git a/tools/perf/util/demangle-cxx.cpp b/tools/perf/util/demangle-cx= x.cpp index bd657eb37efc..36801ea327a6 100644 --- a/tools/perf/util/demangle-cxx.cpp +++ b/tools/perf/util/demangle-cxx.cpp @@ -8,13 +8,6 @@ #include #endif =20 -#if defined(HAVE_CPLUS_DEMANGLE_SUPPORT) -#ifndef DMGL_PARAMS -#define DMGL_PARAMS (1 << 0) /* Include function args */ -#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ -#endif -#endif - /* * Demangle C++ function signature * @@ -24,11 +17,7 @@ extern "C" char *cxx_demangle_sym(const char *str, bool params __maybe_unused, bool modifiers __maybe_unused) { -#if defined(HAVE_CPLUS_DEMANGLE_SUPPORT) - int flags =3D (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI = : 0); - - return cplus_demangle(str, flags); -#elif defined(HAVE_CXA_DEMANGLE_SUPPORT) +#if defined(HAVE_CXA_DEMANGLE_SUPPORT) char *output; int status; =20 diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index abd788c805db..cac98fa5daf0 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -27,13 +27,6 @@ #include #include =20 -#if defined(HAVE_CPLUS_DEMANGLE_SUPPORT) -#ifndef DMGL_PARAMS -#define DMGL_PARAMS (1 << 0) /* Include function args */ -#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ -#endif -#endif - #ifndef EM_AARCH64 #define EM_AARCH64 183 /* ARM 64 bit */ #endif @@ -285,13 +278,7 @@ static bool want_demangle(bool is_kernel_sym) __weak char *cxx_demangle_sym(const char *str __maybe_unused, bool params = __maybe_unused, bool modifiers __maybe_unused) { -#if defined(HAVE_CPLUS_DEMANGLE_SUPPORT) - int flags =3D (params ? DMGL_PARAMS : 0) | (modifiers ? DMGL_ANSI : 0); - - return cplus_demangle(str, flags); -#else return NULL; -#endif } =20 static char *demangle_sym(struct dso *dso, int kmodule, const char *elf_na= me) --=20 2.47.1.613.gc27f4b7a9f-goog