From patchwork Mon Dec 16 23:12:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charlie Jenkins X-Patchwork-Id: 13910668 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (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 BB6591DA631 for ; Mon, 16 Dec 2024 23:13:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734390810; cv=none; b=N7W8XN3sYtoy9QzyTyeTCnZqxM3h5WOCPfUqyIP26ehyA1zlG0RepKfmKq45zbDVzTwRjvArmS/2OTBqB2/aqVz2eSIG9GKhSFz9zQZl6iadbZL933NLGYGkXmLaqK9HXT6+JUYKc9hYfOOFv5dsu8mT5wbdm3S1IVd1Mm9QwcE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734390810; c=relaxed/simple; bh=IChtsS2vcC0zzlF9qX93bNksLgkX24amcVZg/Whalhg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=VEKITII0jsZzSpWU14o5CeqzV8aBJ9k6oBa9UCQ78nok9zrA9CWs1Dxs0jGksfezdlGpD3I0yuvz9ZM9oq3OAMSdz+T3UtNa9+J8mg0ykJVHd5FsbIOdnA1M86iKdkb8AsIIidrOzrBLsOLag3zq4D/efCvE/nlZo1uyCjd6/hQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com; spf=pass smtp.mailfrom=rivosinc.com; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b=yZAoAsop; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b="yZAoAsop" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-21636268e43so57166235ad.2 for ; Mon, 16 Dec 2024 15:13:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1734390806; x=1734995606; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=KtErM1Ve2hYinmhWDXFCRPsbxJ5zQtoWuxH4M5kRJWs=; b=yZAoAsophac381RvX87Kck32TSlUlWV8JTdi3EX3V5YXYxVXDjkP7p6vPUNyuDq4Xr 529+cX/SbJt2Ii2IDF1caXgca/HvpJNI2iruBG6knFVretP1XZo1TpDzXQcymEjUCg14 UUc49ZaWhw7g4R0AOIHaHKpj+6Y1FRNHa1OQ1Ndx0cPZnZyAHnN8BCj1M36nZSss9y2P 34qPTTUdE0xoQC97QPGrqu0Kw9vd0IYO3m+ZODjxzv5eTr1DAk2BcLQj+iOQJOC5lZOd qCH3ew77HSs5zNZUWYSPMCsZ3hLXXvZ40aYqxxuRZRbb/JjVQ8QvawX6F1mrD1YYs4Dn bDeg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734390806; x=1734995606; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=KtErM1Ve2hYinmhWDXFCRPsbxJ5zQtoWuxH4M5kRJWs=; b=F/na/4zTVsF+vE7gq+gas2U4qN7DrVCLRGRea5lH2qyDUg0ULVcsSHXNb3hB79syYr dHV4a8sI+3WAI9bpN3oIWbAeyihzcO/BgIuEuucTkBrJRqwnZKbeHLQSIdMpSGplwu9k lm8y3MLuFUyK5ZMuJghONHUfEHuotTRm8NhMkN4Mp3UwIMxvYR2KRm/aCrnDid9F7HOP LJ90d9rBzxqLhmt9z0W7PWBiWN9c6hhVF7zc0qqXDeMRueFiOtfTlWHPpl28IRtxRfOB ae7Vrf1qciJlwM6xVMamk4YG1xNgFAN5JhG7xmss/HHN6YXBHyVXfGZqMO5CvGd8rDs1 ofhQ== X-Forwarded-Encrypted: i=1; AJvYcCX+qqy7w40wtILl2r0z4Yh/yTbZbdpXivqve7cUtoLpwSh0xXJ2F+WVGLe2Is5P/XJ9g9HyqTlqGxdrzT8=@vger.kernel.org X-Gm-Message-State: AOJu0YwS8HhlEpFAvbOR3kTlnImjf73M9OSnmw0EgoqFvC7t2rF3DrUa OpeCPB3r+WFeHLgYCZEVdSIStWiC7XdmIMdGfIBJ5Ni8CPk8MgeLb4VniSfRtX1pbGPsUvd+H7R y X-Gm-Gg: ASbGnctY4fzGGzBSp8gUCHUTimc9qJnK/q5NXdSe7baYfFNotS8iLO7UVHyInJ03hKm McZrW81KJ8itaROfBoAA++GdJ7XpV2q8BbMgK6/cZSvXP5DMZHrW+jyMUjIaFfGSqrVMmnS1hmm qFAFeQEB/AI77jfk5reDodnI2wDJUcc6bNaLPJ5hCxglcfHWzDE5yyoAiaRyrmReTg8B87JAMut PHYO9JIvWug9iGLzM9bdM/7J0ivhKZgHUE/JZgxhH0sHiljr34ONqKyqBIGFlF3AvHFJNOp X-Google-Smtp-Source: AGHT+IG7d1EVk09Gyn4kffMe9mhj+HK2qa0XP67wFBNzKqGiDe300RSugOZB/wYYtlbfPKTuuRzmLQ== X-Received: by 2002:a17:902:ecc8:b0:215:7421:262 with SMTP id d9443c01a7336-218929820a5mr216451045ad.12.1734390806556; Mon, 16 Dec 2024 15:13:26 -0800 (PST) Received: from charlie.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-218a1dcc47bsm48333255ad.63.2024.12.16.15.13.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Dec 2024 15:13:25 -0800 (PST) From: Charlie Jenkins Date: Mon, 16 Dec 2024 15:12:51 -0800 Subject: [PATCH 1/2] kbuild: Check version of objdump Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241216-perf_fix_riscv_obj_reading-v1-1-b75962660a9b@rivosinc.com> References: <20241216-perf_fix_riscv_obj_reading-v1-0-b75962660a9b@rivosinc.com> In-Reply-To: <20241216-perf_fix_riscv_obj_reading-v1-0-b75962660a9b@rivosinc.com> To: Masahiro Yamada , Paul Walmsley , Palmer Dabbelt , Albert Ou , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , =?utf-8?q?Micka=C3=ABl_Sala=C3=BC?= =?utf-8?q?n?= , =?utf-8?q?G=C3=BCnther_Noack?= , Nelson Chu Cc: linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-riscv@lists.infradead.org, llvm@lists.linux.dev, linux-perf-users@vger.kernel.org, linux-security-module@vger.kernel.org, Charlie Jenkins X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3835; i=charlie@rivosinc.com; h=from:subject:message-id; bh=IChtsS2vcC0zzlF9qX93bNksLgkX24amcVZg/Whalhg=; b=owGbwMvMwCHWx5hUnlvL8Y3xtFoSQ3rCFsFFrwPjpm/neppcomk8U6ZceR7/mol1y5/FNwstL W2dMm1JRykLgxgHg6yYIgvPtQbm1jv6ZUdFyybAzGFlAhnCwMUpABO5ycPwv/bu6wu/imrKdDZq bjKZHBWWnnRkz7PCvC/pV51nvTyxJ5Hhn+mD3V2n+P5EHHj17tnntVdUz5lVzn/yf6butml/19y Lb+cEAA== X-Developer-Key: i=charlie@rivosinc.com; a=openpgp; fpr=7D834FF11B1D8387E61C776FFB10D1F27D6B1354 Similar to ld-version, add a way to check the version of objdump. This should most of the time end up being the binutils version or the llvm version. Signed-off-by: Charlie Jenkins --- init/Kconfig | 10 +++++++ scripts/Kconfig.include | 6 ++++ scripts/objdump-version.sh | 69 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 85 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index a20e6efd3f0fbdd7f0df2448854cc30734a0ee4f..0b5d36f939e1de89c12ebdd61e4815015314d4f1 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -60,6 +60,16 @@ config LLD_VERSION default $(ld-version) if LD_IS_LLD default 0 +config OBJDUMP_IS_GNU + def_bool $(success,test "$(objdump-name)" = objdump) + +config OBJDUMP_IS_LLVM + def_bool $(success,test "$(objdump-name)" = llvm-objdump) + +config OBJDUMP_VERSION + int + default $(objdump-version) + config RUSTC_VERSION int default $(rustc-version) diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include index 33193ca6e8030e659d6b321acaea1acd42c387a4..cb3e2d2564fea8cce780adb3be672c9596b7ccf2 100644 --- a/scripts/Kconfig.include +++ b/scripts/Kconfig.include @@ -58,6 +58,12 @@ $(error-if,$(success,test -z "$(ld-info)"),Sorry$(comma) this linker is not supp ld-name := $(shell,set -- $(ld-info) && echo $1) ld-version := $(shell,set -- $(ld-info) && echo $2) +# Get the objdump name, version, and error out if it is not supported. +objdump-info := $(shell,$(srctree)/scripts/objdump-version.sh $(OBJDUMP)) +$(error-if,$(success,test -z "$(objdump-info)"),Sorry$(comma) this objdump is not supported.) +objdump-name := $(shell,set -- $(objdump-info) && echo $1) +objdump-version := $(shell,set -- $(objdump-info) && echo $2) + # machine bit flags # $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise. # $(m64-flag): -m64 if the compiler supports it, or an empty string otherwise. diff --git a/scripts/objdump-version.sh b/scripts/objdump-version.sh new file mode 100755 index 0000000000000000000000000000000000000000..fa24f8dc2d3c42fd1195fceb3c96b27f7127db25 --- /dev/null +++ b/scripts/objdump-version.sh @@ -0,0 +1,69 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Print the objdump name and its version in a 5 or 6-digit form. +# Also, perform the minimum version check. + +set -e + +# Convert the version string x.y.z to a canonical 5 or 6-digit form. +get_canonical_version() +{ + IFS=. + set -- $1 + + # If the 2nd or 3rd field is missing, fill it with a zero. + # + # The 4th field, if present, is ignored. + # This occurs in development snapshots as in 2.35.1.20201116 + echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) +} + +orig_args="$@" + +# Get the first line of the --version output. +IFS=' +' +set -- $(LC_ALL=C "$@" --version) + +# Split the line on spaces. +IFS=' ' +set -- $1 + +min_tool_version=$(dirname $0)/min-tool-version.sh + +if [ "$1" = GNU -a "$2" = objdump ]; then + shift $(($# - 1)) + version=$1 + min_version=$($min_tool_version binutils) + disp_name="GNU objdump" +else + while [ $# -gt 1 -a "$1" != "LLVM" ]; do + shift + done + + if [ "$1" = LLVM ]; then + version=$3 + min_version=$($min_tool_version llvm) + disp_name="llvm-objdump" + else + echo "$orig_args: unknown objdump" >&2 + exit 1 + fi +fi + +version=${version%%[!0-9.]*} + +cversion=$(get_canonical_version $version) +min_cversion=$(get_canonical_version $min_version) + +if [ "$cversion" -lt "$min_cversion" ]; then + echo >&2 "***" + echo >&2 "*** objdump is too old." + echo >&2 "*** Your $disp_name version: $version" + echo >&2 "*** Minimum $disp_name version: $min_version" + echo >&2 "***" + exit 1 +fi + +echo objdump $cversion