From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (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 4A5032749FE for ; Fri, 3 Oct 2025 01:24:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759454646; cv=none; b=XoJaCSPOLCz2IomCJ6h827XbfHDGHAw7xcjAxaixBMjY269PA2JSJH1VFJLvKZw58VAc2DSl0r8vqjELe4SJRnYEJhvyq9ainwj7gFJe5nlu0vN4JNYMW5L40YeLnCFLUas/rOF8LBnQ5/jZh/O6yXs5hdtjZiEHxSYG7V/rhNU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759454646; c=relaxed/simple; bh=kUOXFIeRSqDtSv2ZkPiFOO36c2y12fUPmamNdNMIsfE=; h=Date:Mime-Version:Message-ID:Subject:From:To:Content-Type; b=LFuvjcLLzsi2usTReRyQD4XGJWSE4L9aw9OgOGSidPMjmRnDCMWjJ+kETR2IKTJ2gJqvNGWelvrhFCa5Gi5jjsvb94WsWqf87+8+XslVuXgONBmEpznG4IabD0NgGztRu9eUhevD+5sOm67mq04W2i9O2G6woaAnEf3ZzJgkfBY= 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=UVBHv3gA; arc=none smtp.client-ip=209.85.214.202 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="UVBHv3gA" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-28e8d1d9b13so16949155ad.0 for ; Thu, 02 Oct 2025 18:24:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1759454640; x=1760059440; darn=vger.kernel.org; h=to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=n/6Q8RQGaqyFoWu3nQe4KiS7k5Z8ub45H9dHX2o1RRQ=; b=UVBHv3gAg1rd9c5sckDrLg/yS2Z6lgfm9nmrQzvl30np4Yi4eQN9V5XnW38TDU0k/T O3wdrneRM3nIJaUtmlENcBH1vHMJsnQ8zwBCYBXgf/dwZkZjjjgXOcQ3TTZa2J0qYvtg ijav5ZNxEKCQr/JHzPbz92PFGRB9KOjIJkFpu1hipN6/sBaUjN52FZwTbQ/hexe6k8CP fsWTgrk2xHZMqOBf71oxCnD6SNrp4HUpM9++2b8JR4DVkQM2UsYfn29S0Xh4DWdruLr3 2GKhF8P48m4Jpqw9IJSeLKog3ZflSCueLg6vXrXGaruoVdWjCweHFAAM2vJFB4zkKTO7 lnKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759454640; x=1760059440; h=to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=n/6Q8RQGaqyFoWu3nQe4KiS7k5Z8ub45H9dHX2o1RRQ=; b=cp4r4fFWfE/+UenLcnbHPjUreRtQT7KaAbg9ByiS7AX3Pr8uEfVE6fisGZ+jgj324w BmKua/+IT/5WhgK3p34UOK3isE+sBt45C9Mbnko891ARxYdzIeCG8uGVamK3uim9q94t 6PZFtefSOd3MMO39mRuUGbXhRdrzaF9bkgAn8qlr/FLibhNWesuF4G7FqMYkXn7QFP9K 8S6/i7IoIlYjyA8gzaKSU4NXzAgPiuo9I0j8/Ro0dpuNOJ+HfP1qxQIm4hYdutqOP+7b h/DUy5zQjPB+OuFpJKDt2h/+Vn7VWvF8SZPLNHE9B9dqlH9KLPevOFTBdMA1nrO4u6Hl gdrw== X-Forwarded-Encrypted: i=1; AJvYcCWJtMHHk21QaiOGjTQwuoaZvB9Htc+JdCYSAQ6NW/vx4p5WdKIRq4mki81MMdwnyaBrZ0d1dtn+YIrTAmubR//H@vger.kernel.org X-Gm-Message-State: AOJu0YwTQ3on7M6BH78vQv8R6LzS1MLwJ63hOmoNdYK3H4DJ3Una9HM5 SRPzTJuPa6IXokH+QnjP29mxp28G2OJmh/KbyPZlc3BhwFRuL+IZsSdpW8HX6fmzZOxdQND72oM mOqOOuqlwog== X-Google-Smtp-Source: AGHT+IFY9UEJwnhtwJqOYlJ+khMMlSHN/ze27dGvQJuRPcqqkdwyu6/B38lIGuCrw1Ue1guMSz5HzG4uq6lR X-Received: from plev16.prod.google.com ([2002:a17:903:31d0:b0:267:e964:bc69]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:2405:b0:264:a34c:c6d with SMTP id d9443c01a7336-28e9a6a90c6mr13499045ad.37.1759454640628; Thu, 02 Oct 2025 18:24:00 -0700 (PDT) Date: Thu, 2 Oct 2025 18:23:48 -0700 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.51.0.618.g983fd99d29-goog Message-ID: <20251003012349.2396685-1-irogers@google.com> Subject: [PATCH v1 1/2] perf bpf-event: Use libbpf version rather than feature check From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Blake Jones , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, bpf@vger.kernel.org Content-Type: text/plain; charset="UTF-8" The feature check guarded the -DHAVE_LIBBPF_STRINGS_SUPPORT is unnecessary as it is sufficient and easier to use the LIBBPF_CURRENT_VERSION_GEQ macro. Signed-off-by: Ian Rogers --- tools/perf/Makefile.config | 7 ------- tools/perf/builtin-check.c | 1 + tools/perf/util/bpf-event.c | 2 -- tools/perf/util/bpf-utils.h | 5 +++++ 4 files changed, 6 insertions(+), 9 deletions(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index 6cdb96576cb8..b0e15721c5a5 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -596,13 +596,6 @@ ifndef NO_LIBELF LIBBPF_INCLUDE = $(LIBBPF_DIR)/.. endif endif - - FEATURE_CHECK_CFLAGS-libbpf-strings="-I$(LIBBPF_INCLUDE)" - $(call feature_check,libbpf-strings) - ifeq ($(feature-libbpf-strings), 1) - $(call detected,CONFIG_LIBBPF_STRINGS) - CFLAGS += -DHAVE_LIBBPF_STRINGS_SUPPORT - endif endif endif # NO_LIBBPF endif # NO_LIBELF diff --git a/tools/perf/builtin-check.c b/tools/perf/builtin-check.c index 7fd054760e47..8c0668911fb1 100644 --- a/tools/perf/builtin-check.c +++ b/tools/perf/builtin-check.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include "builtin.h" #include "color.h" +#include "util/bpf-utils.h" #include "util/debug.h" #include "util/header.h" #include diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c index 59f84aef91b4..2298cd396c42 100644 --- a/tools/perf/util/bpf-event.c +++ b/tools/perf/util/bpf-event.c @@ -288,9 +288,7 @@ static void format_btf_variable(struct btf *btf, char *buf, size_t buf_size, .sz = sizeof(struct btf_dump_type_data_opts), .skip_names = 1, .compact = 1, -#if LIBBPF_CURRENT_VERSION_GEQ(1, 7) .emit_strings = 1, -#endif }; struct btf_dump *d; size_t btf_size; diff --git a/tools/perf/util/bpf-utils.h b/tools/perf/util/bpf-utils.h index eafc43b8731f..a8bc1a232968 100644 --- a/tools/perf/util/bpf-utils.h +++ b/tools/perf/util/bpf-utils.h @@ -14,6 +14,11 @@ (LIBBPF_MAJOR_VERSION > (major) || \ (LIBBPF_MAJOR_VERSION == (major) && LIBBPF_MINOR_VERSION >= (minor))) +#if LIBBPF_CURRENT_VERSION_GEQ(1, 7) +// libbpf 1.7+ support the btf_dump_type_data_opts.emit_strings option. +#define HAVE_LIBBPF_STRINGS_SUPPORT 1 +#endif + /* * Get bpf_prog_info in continuous memory * -- 2.51.0.618.g983fd99d29-goog