From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7A61C61DA4 for ; Sat, 11 Mar 2023 06:59:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230098AbjCKG7v (ORCPT ); Sat, 11 Mar 2023 01:59:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230101AbjCKG7n (ORCPT ); Sat, 11 Mar 2023 01:59:43 -0500 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63F8E6FFE2 for ; Fri, 10 Mar 2023 22:59:07 -0800 (PST) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-53700262a47so76010397b3.4 for ; Fri, 10 Mar 2023 22:59:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; t=1678517945; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=TeLjpZEBElZPq770pHQ3cqTtDu48PrMd6iajkLxZXoU=; b=Ua++G/pPd+SVDJwvl19ZJsDG1Or/TZ/BFSKNdrAmYWdlWCZ/iFomFaBUwI0T5lTgOm xWfKU5/Bwli59xtjTjo+LvLnIbOmWR8cgnp7hb1NjIlSzo+khMAZRqdJ7g6wNgAZ//6K oZdtIP7+Kdy3nvqTB6B04pijjfOeie0Hf1QccsJhVwceP78G/J1wbT+FQNpjgHIfl+OH FWBtsQo9zfspq9m+CreQOdsqyBGbr0Q2nNsJRtvkSqrHutbXWoGADqwcJbESnMQDEnv1 oiiRTPBevzcT/2RXis5IoSDZyeRElEE8Uf3/yhtx94aYTkUDApVo7blkQ5nkkY/NTzAm cpBQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678517945; h=cc: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=TeLjpZEBElZPq770pHQ3cqTtDu48PrMd6iajkLxZXoU=; b=M41eb1tHuRuldOMAeJzlJ2BnysCfP7i5M3Onina3rAwZrg1EqxpJkZK/9ImZz1+e5r faJMUd6cHt7oqS7P3q7hST62qfjl6HHwWFoLstbnOhA+bSBdB+uBQTwCujCtWWHWlZIg I337pIeMrj+af+sgrZpW0fm4ToG/ft4mB8ulKaN4dPFqcz3N+ACcV2fOBLeqapt1PG10 gwKin7WICeQgDmThXo/jxgL/FZpmFi/b84BzmwJs7St3Om4lV2zuutp+j2hM4uw3H1oK rRptmNJ/iBujxaWl6fsjqgLtlWFjJiUK4mxUc0LtdkQmr6EMBFttWzy/c2znOlixVooT 4n7A== X-Gm-Message-State: AO0yUKXranaJMkNN/ylWMS/rUbQFdTEzR/z4vRwG8VoYizvzgZQQ3D4x DMptg7s+uDlFUUGZfG1r42vUP5i/peth X-Google-Smtp-Source: AK7set/6+p+yFgDiDQyRYorbvgodf9XCwu4OA2mDN8JFQ4h3Y3vVuSxNelxVt3B5EzESzr56CUvMk0R6m5mw X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:a11d:a763:a328:f2d6]) (user=irogers job=sendgmr) by 2002:a81:4328:0:b0:541:642f:709c with SMTP id q40-20020a814328000000b00541642f709cmr2ywa.388.1678517944974; Fri, 10 Mar 2023 22:59:04 -0800 (PST) Date: Fri, 10 Mar 2023 22:57:48 -0800 In-Reply-To: <20230311065753.3012826-1-irogers@google.com> Message-Id: <20230311065753.3012826-9-irogers@google.com> Mime-Version: 1.0 References: <20230311065753.3012826-1-irogers@google.com> X-Mailer: git-send-email 2.40.0.rc1.284.g88254d51c5-goog Subject: [PATCH v1 08/13] tools build: Add feature test for abi::__cxa_demangle From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Nathan Chancellor , Nick Desaulniers , Tom Rix , Roberto Sassu , Quentin Monnet , Andres Freund , Tiezhu Yang , Pavithra Gurushankar , Yang Jihong , Adrian Hunter , Leo Yan , "=?UTF-8?q?Martin=20Li=C5=A1ka?=" , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev Cc: Stephane Eranian , Ian Rogers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org cxxabi.h is part of libsdtc++ and LLVM's libcxx, providing abi::__cxa_demangle a portable C++ demangler. Add a feature test to detect that the function is available. Signed-off-by: Ian Rogers --- tools/build/Makefile.feature | 1 + tools/build/feature/Makefile | 4 ++++ tools/build/feature/test-cxa-demangle.cpp | 17 +++++++++++++++++ 3 files changed, 22 insertions(+) create mode 100644 tools/build/feature/test-cxa-demangle.cpp diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 38f8851bd7cb..214622d7537c 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -80,6 +80,7 @@ FEATURE_TESTS_EXTRA := \ compile-32 \ compile-x32 \ cplus-demangle \ + cxa-demangle \ gtk2 \ gtk2-infobar \ hello \ diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index dc9323e01e42..0a3b9281f8b0 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -23,6 +23,7 @@ FILES= \ test-libbfd-liberty.bin \ test-libbfd-liberty-z.bin \ test-cplus-demangle.bin \ + test-cxa-demangle.bin \ test-libcap.bin \ test-libelf.bin \ test-libelf-getphdrnum.bin \ @@ -262,6 +263,9 @@ $(OUTPUT)test-libbfd-liberty-z.bin: $(OUTPUT)test-cplus-demangle.bin: $(BUILD) -liberty +$(OUTPUT)test-cxa-demangle.bin: + $(BUILDXX) + $(OUTPUT)test-backtrace.bin: $(BUILD) diff --git a/tools/build/feature/test-cxa-demangle.cpp b/tools/build/feature/test-cxa-demangle.cpp new file mode 100644 index 000000000000..a3e712f65c37 --- /dev/null +++ b/tools/build/feature/test-cxa-demangle.cpp @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include + +int main(void) +{ + size_t len = 256; + char *output = (char*)malloc(len); + int status; + + output = abi::__cxa_demangle("FieldName__9ClassNameFd", output, &len, &status); + + printf("demangled symbol: {%s}\n", output); + + return 0; +} -- 2.40.0.rc1.284.g88254d51c5-goog