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 X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74279CA9EC9 for ; Mon, 4 Nov 2019 22:04:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4980220650 for ; Mon, 4 Nov 2019 22:04:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572905068; bh=+UnMfg+m4swdchYKP2ODwEcQQQuDupu3pI/pxiofxoo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=YnhsVAFDIfXxWmWM+b10t9BRM0r01XEe2mkSP/gT1IIBQtSCAs0Hq3jFmj8Qiyl6f MlkTA+qtcOfyz75y4Rgd8fnyfP9eCe9a66DxfL3G4UHnwzYUs2rYF8tKzVF/k182tE CVH+nuKCFv42iF/Tk+udFgBiby1pWJzD9TapFzYg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389664AbfKDWE1 (ORCPT ); Mon, 4 Nov 2019 17:04:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:35118 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388315AbfKDWE0 (ORCPT ); Mon, 4 Nov 2019 17:04:26 -0500 Received: from localhost (6.204-14-84.ripe.coltfrance.com [84.14.204.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5C8AD222C1; Mon, 4 Nov 2019 22:04:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572905065; bh=+UnMfg+m4swdchYKP2ODwEcQQQuDupu3pI/pxiofxoo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CuvLcdLiGCP+JFFQ7FKVGFuvEG8Yz0YOD8vVhu2oZOHiKZIw+TMr5eS7b2ASw4TZd +v6Pz6IeSuIqeKLtpOlUWJQS68GUsvXC3HD0A8CCZFyXfonarPdnh5/034cwZI88/F RpO5+5WZ/Ys60ZhIXG9X/EWRzpdzsxRakYlUdpro= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Russell King - ARM Linux admin , Adrian Hunter , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Will Deacon , Arnaldo Carvalho de Melo , Sasha Levin , Peter Zijlstra Subject: [PATCH 5.3 017/163] perf annotate: Fix arch specific ->init() failure errors Date: Mon, 4 Nov 2019 22:43:27 +0100 Message-Id: <20191104212141.665821076@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191104212140.046021995@linuxfoundation.org> References: <20191104212140.046021995@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo [ Upstream commit 42d7a9107d83223a5fcecc6732d626a6c074cbc2 ] They are called from symbol__annotate() and to propagate errors that can help understand the problem make them return what symbol__strerror_disassemble() known, i.e. errno codes and other annotation specific errors in a special, out of errnos, range. Reported-by: Russell King - ARM Linux admin Cc: Adrian Hunter Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra , Cc: Will Deacon Link: https://lkml.kernel.org/n/tip-pqx7srcv7tixgid251aeboj6@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/arch/arm/annotate/instructions.c | 4 ++-- tools/perf/arch/arm64/annotate/instructions.c | 4 ++-- tools/perf/arch/s390/annotate/instructions.c | 6 ++++-- tools/perf/arch/x86/annotate/instructions.c | 6 ++++-- tools/perf/util/annotate.c | 6 ++++++ tools/perf/util/annotate.h | 2 ++ 6 files changed, 20 insertions(+), 8 deletions(-) diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c index c7d1a69b894fe..19ac54758c713 100644 --- a/tools/perf/arch/arm/annotate/instructions.c +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -36,7 +36,7 @@ static int arm__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arm = zalloc(sizeof(*arm)); if (!arm) - return -1; + return ENOMEM; #define ARM_CONDS "(cc|cs|eq|ge|gt|hi|le|ls|lt|mi|ne|pl|vc|vs)" err = regcomp(&arm->call_insn, "^blx?" ARM_CONDS "?$", REG_EXTENDED); @@ -58,5 +58,5 @@ out_free_call: regfree(&arm->call_insn); out_free_arm: free(arm); - return -1; + return SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP; } diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index 8f70a1b282dfb..223e2f161f414 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -94,7 +94,7 @@ static int arm64__annotate_init(struct arch *arch, char *cpuid __maybe_unused) arm = zalloc(sizeof(*arm)); if (!arm) - return -1; + return ENOMEM; /* bl, blr */ err = regcomp(&arm->call_insn, "^blr?$", REG_EXTENDED); @@ -117,5 +117,5 @@ out_free_call: regfree(&arm->call_insn); out_free_arm: free(arm); - return -1; + return SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP; } diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index 89bb8f2c54cee..a50e70baf9183 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -164,8 +164,10 @@ static int s390__annotate_init(struct arch *arch, char *cpuid __maybe_unused) if (!arch->initialized) { arch->initialized = true; arch->associate_instruction_ops = s390__associate_ins_ops; - if (cpuid) - err = s390__cpuid_parse(arch, cpuid); + if (cpuid) { + if (s390__cpuid_parse(arch, cpuid)) + err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING; + } } return err; diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c index 44f5aba78210e..7eb5621c021d8 100644 --- a/tools/perf/arch/x86/annotate/instructions.c +++ b/tools/perf/arch/x86/annotate/instructions.c @@ -196,8 +196,10 @@ static int x86__annotate_init(struct arch *arch, char *cpuid) if (arch->initialized) return 0; - if (cpuid) - err = x86__cpuid_parse(arch, cpuid); + if (cpuid) { + if (x86__cpuid_parse(arch, cpuid)) + err = SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING; + } arch->initialized = true; return err; diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index ca8b517e38fa8..b475449f955ef 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -1625,6 +1625,12 @@ int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map * case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); break; + case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP: + scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions."); + break; + case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING: + scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization."); + break; default: scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum); break; diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 5bc0cf655d377..a1191995fe77e 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -370,6 +370,8 @@ enum symbol_disassemble_errno { SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX = __SYMBOL_ANNOTATE_ERRNO__START, SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF, + SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING, + SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP, __SYMBOL_ANNOTATE_ERRNO__END, }; -- 2.20.1