From patchwork Mon Aug 1 01:38:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andres Freund X-Patchwork-Id: 12933312 X-Patchwork-Delegate: bpf@iogearbox.net 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 66A9CC19F2D for ; Mon, 1 Aug 2022 01:38:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238799AbiHABio (ORCPT ); Sun, 31 Jul 2022 21:38:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238760AbiHABil (ORCPT ); Sun, 31 Jul 2022 21:38:41 -0400 Received: from wout1-smtp.messagingengine.com (wout1-smtp.messagingengine.com [64.147.123.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E693D112; Sun, 31 Jul 2022 18:38:40 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id 408E13200495; Sun, 31 Jul 2022 21:38:37 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Sun, 31 Jul 2022 21:38:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anarazel.de; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1659317916; x=1659404316; bh=Gg 2ebcjopr7kTW9xl9o9LrGHFKJ9hVi1E0tGPNFW3e4=; b=Fv6WyHQgrFf+9yUKXv VaX/YquwfAkVD62fU0rQLUAo47tOUmPm7QCP5Ux0d1U+I7Si27AL4AVI9wD+rytP y0JAARgXmMYXoBivV23A2B0y+XUUjno0H7SN3mW56IQPWsKK/wIsoybAsDS45TBL tXE4RczYeDijWDjHnzYKnpZcL9Vfhx4Slv3bFJ00qUWm1Xj9gN7P/127Y4paTBK5 VDSNXjIxxIwMXLct9+s8GISaP1MUhNbO1cbwUbI5wLCJdjSsltBp1fS5tiaD00Fe cn4gu4DCQRNnsuj39Z4de1do57GibZDGsXFe+UQS0osMwKpCcutkuAHENTStEmAS vugA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; t=1659317916; x=1659404316; bh=Gg2ebcjopr7kT W9xl9o9LrGHFKJ9hVi1E0tGPNFW3e4=; b=rj5gGOrMINZYw8RO81Qc5SJMYJxnP w3qhIhrsNytKPsqoLtsv76GbyRo5KcriPMQUi/18aeW4y8Bs4QrsqTS5jSevN3xY ILPJe7jEQ72JinzFWOEEtFPEmufadII+MmCRoO0zQxjjz/X0lptWi0LrtTTCtx+k hd4rfESsyx83mbllm32nZ6fukZ6/dkHYPGeQ8B+r1O5l77i67HuB0+5HRyLcQl4J DTreyvKZQwFAVY+kGhD4VQQ+JZAKffqjt7k5dZKrRu4I3G+jRr3mG8XETDf5wvZz 3P5k2QCVMitJEUivzGXsRvzmDGdBfRFjwyfdDPbG1jMsNPS6Lf1nVYMcw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrvddvvddggedtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomheptehnughr vghsucfhrhgvuhhnugcuoegrnhgurhgvshesrghnrghrrgiivghlrdguvgeqnecuggftrf grthhtvghrnhepleejgfdvfefhudektddtveegtdekieegffdtkeeljeetudevffeltdei feeugeeinecuffhomhgrihhnpehsohhurhgtvgifrghrvgdrohhrghdpkhgvrhhnvghlrd horhhgnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhep rghnughrvghssegrnhgrrhgriigvlhdruggv X-ME-Proxy: Feedback-ID: id4a34324:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Sun, 31 Jul 2022 21:38:36 -0400 (EDT) From: Andres Freund To: bpf@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Alexei Starovoitov , Arnaldo Carvalho de Melo , Jiri Olsa , Sedat Dilek , Quentin Monnet , Ben Hutchings Subject: [PATCH v3 3/8] tools include: add dis-asm-compat.h to handle version differences Date: Sun, 31 Jul 2022 18:38:29 -0700 Message-Id: <20220801013834.156015-4-andres@anarazel.de> X-Mailer: git-send-email 2.37.0.3.g30cc8d0f14 In-Reply-To: <20220801013834.156015-1-andres@anarazel.de> References: <20220622231624.t63bkmkzphqvh3kx@alap3.anarazel.de> <20220801013834.156015-1-andres@anarazel.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org binutils changed the signature of init_disassemble_info(), which now causes compilation failures for tools/{perf,bpf}, e.g. on debian unstable. Relevant binutils commit: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=60a3da00bd5407f07 This commit introduces a wrapper for init_disassemble_info(), to avoid spreading #ifdef DISASM_INIT_STYLED to a bunch of places. Subsequent commits will use it to fix the build failures. It likely is worth adding a wrapper for disassember(), to avoid the already existing DISASM_FOUR_ARGS_SIGNATURE ifdefery. Cc: Alexei Starovoitov Cc: Arnaldo Carvalho de Melo Cc: Sedat Dilek Cc: Quentin Monnet Cc: Ben Hutchings Link: http://lore.kernel.org/lkml/20220622181918.ykrs5rsnmx3og4sv@alap3.anarazel.de Signed-off-by: Andres Freund Signed-off-by: Ben Hutchings --- tools/include/tools/dis-asm-compat.h | 55 ++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 tools/include/tools/dis-asm-compat.h diff --git a/tools/include/tools/dis-asm-compat.h b/tools/include/tools/dis-asm-compat.h new file mode 100644 index 000000000000..70f331e23ed3 --- /dev/null +++ b/tools/include/tools/dis-asm-compat.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */ +#ifndef _TOOLS_DIS_ASM_COMPAT_H +#define _TOOLS_DIS_ASM_COMPAT_H + +#include +#include + +/* define types for older binutils version, to centralize ifdef'ery a bit */ +#ifndef DISASM_INIT_STYLED +enum disassembler_style {DISASSEMBLER_STYLE_NOT_EMPTY}; +typedef int (*fprintf_styled_ftype) (void *, enum disassembler_style, const char*, ...); +#endif + +/* + * Trivial fprintf wrapper to be used as the fprintf_styled_func argument to + * init_disassemble_info_compat() when normal fprintf suffices. + */ +static inline int fprintf_styled(void *out, + enum disassembler_style style, + const char *fmt, ...) +{ + va_list args; + int r; + + (void)style; + + va_start(args, fmt); + r = vfprintf(out, fmt, args); + va_end(args); + + return r; +} + +/* + * Wrapper for init_disassemble_info() that hides version + * differences. Depending on binutils version and architecture either + * fprintf_func or fprintf_styled_func will be called. + */ +static inline void init_disassemble_info_compat(struct disassemble_info *info, + void *stream, + fprintf_ftype unstyled_func, + fprintf_styled_ftype styled_func) +{ +#ifdef DISASM_INIT_STYLED + init_disassemble_info(info, stream, + unstyled_func, + styled_func); +#else + (void)styled_func; + init_disassemble_info(info, stream, + unstyled_func); +#endif +} + +#endif /* _TOOLS_DIS_ASM_COMPAT_H */