From patchwork Tue Jul 6 14:58:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alex_Benn=C3=A9e?= X-Patchwork-Id: 470468 Delivered-To: patch@linaro.org Received: by 2002:a17:906:971a:0:0:0:0 with SMTP id k26csp5199889ejx; Tue, 6 Jul 2021 08:18:06 -0700 (PDT) X-Google-Smtp-Source: ABdhPJy026aNImYsgk6hsykHI2A3eB0Igt2Cq0GX7wgaIpWQPkd9EcOSRhMaTFdW1/azJ2D/U4Ql X-Received: by 2002:a17:906:9bec:: with SMTP id de44mr12723338ejc.512.1625584686151; Tue, 06 Jul 2021 08:18:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1625584686; cv=none; d=google.com; s=arc-20160816; b=ZNy5DrxIcVvohDQB7yrLnvsEUhetY/7Ioy4Fvt73kDlE5BbB8BlPYOkgO4pAd/SUu0 NYT8noPe8KpagWD4CA0M4lt3uIaXSENQqvNDabS8sIyNXrXEMV8cyYRhE6K1GU9chgPv PEsyG6oLN1BzLDBYPZdh6rsuPlTRAoXDCyNgE2mzuuWuJ3HjFtDH6SXEEieK1LyfRvZb WVocIlOY8BXbJ8aGb4jmrPhD8ow/qtkhcItosM4XW0RW3y8Mu/bmjnCUWXdxRVPELNp9 wNofMNLLpHQDmYgei0nDNQiML0aXX7HzH9r+mEuqFPloX8v+M0OmA9UEyG7IDaEbIUQw XWwQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:cc:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=M0B41l8DgGSa12niyjKzHwCDTjBJNRfJGB+oGiCv7dg=; b=0zVs6SHmJPtXbmoypDlwsmEEDb17oOsBU2UtOHCBKQpjMnK5JHO4UqCIb+GxORMvrz yKfN6mP+1RHZweOUpIzsZNny7319LDAY7KU1Kr5OfnNFnEVWQ1RJ40IvmWsMSGh/Hn/m 6KU9oQVSb57efYhssZ0RRZyY8WWSD7Tr6WifLDAshBkny2iB5O2DblgjyzHKwrsXdp7S z3mpSlo+RxQCHKHlxGoDNStK6Jfd2hV35A0SH8H0/J8QXxAkCEmPq5XEnK9zRoufGeOZ 67+7vt4fHcOXU4aohnKdMu6byrRHeKOwnZq3bpSIdmPNuCNgQPmR4Yxqe618kqoxucgC TvVg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@linaro.org header.s=google header.b=Ko0rze6u; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id b3si13515209ejb.219.2021.07.06.08.18.06 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 06 Jul 2021 08:18:06 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=fail header.i=@linaro.org header.s=google header.b=Ko0rze6u; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:51158 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m0mpp-0002Lg-61 for patch@linaro.org; Tue, 06 Jul 2021 11:18:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35882) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m0mf6-00056a-Gx for qemu-devel@nongnu.org; Tue, 06 Jul 2021 11:07:01 -0400 Received: from mail-wr1-x42d.google.com ([2a00:1450:4864:20::42d]:45839) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m0mf4-00072Y-OU for qemu-devel@nongnu.org; Tue, 06 Jul 2021 11:07:00 -0400 Received: by mail-wr1-x42d.google.com with SMTP id i8so13583288wrp.12 for ; Tue, 06 Jul 2021 08:06:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=M0B41l8DgGSa12niyjKzHwCDTjBJNRfJGB+oGiCv7dg=; b=Ko0rze6urFLr9sEmYdV2433Xyq3fnB2Dz4FescYUFF/v4Hcg/ZIxVCvpQzk0GJNhK1 tqzwVJzlFAS+6lQtUEi4fV/ROD8JMEE9f9+PHjBCKLgJicc64QWjBF7SPynFHsxswBCQ 5Clsr0p+TUied6bkuryVLF8Xi8bDARrrWrKUmUfMGxWo8SD9QaOy3v5XVXIqYH64qNvr 0kdM0eziTacQqtDIfjDLohamo8z9FpmaJnq9svr7+tocSIduaQoKU1QFi+oNw8YwCu6S qMvk+Vn2ZkDRp8OlUfNSKYduXGTsI+RuyIQaMg+54n7yNfChlWHSkFr5lNHasCFl1gMZ W7sA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=M0B41l8DgGSa12niyjKzHwCDTjBJNRfJGB+oGiCv7dg=; b=sbgCSaRlT6pRdRKcr7ieDBCRgOXWR2FwJPC3IYN9u9XBlDccdYBVHyeDEvQ7jNVJN+ iu/WMg7EuufAcZJua5e215T1WQ7w3nlykZ9F6zTqxufFjflkhuycDRdDAmYYmtN5uw4n 2J/iOWGyhvtDGQcuRvbWBlkCN2tyRbqTiLy8MkcHDah7If5ymPgAXKHdB9R3tTgYgBpY ysQvsWuRPOoU59rYhEWxYi49aX057S38vxAG4qpmPj0AH68eoaLaYyAM3ArMS3jnIMzp HGS4ScRuottHe3ZaOGQJCODCI4xVcWYBJfGZMLkh9SzdDWJDGa9MjrKz3CTJW8Pp9Vnx +g9w== X-Gm-Message-State: AOAM530iDVSDLvr3ROiN1/fLEN5LUh7rpquEmxdDqXB5ipDDwwI+4Qmo +Ri2RWuryrDqIVDV8aYUzZVarA== X-Received: by 2002:adf:e690:: with SMTP id r16mr8238954wrm.196.1625584016997; Tue, 06 Jul 2021 08:06:56 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id t9sm18039244wmq.14.2021.07.06.08.06.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Jul 2021 08:06:56 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 6D9541FFBB; Tue, 6 Jul 2021 15:58:21 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v1 34/39] docs/devel: tcg-plugins: add execlog plugin description Date: Tue, 6 Jul 2021 15:58:12 +0100 Message-Id: <20210706145817.24109-35-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210706145817.24109-1-alex.bennee@linaro.org> References: <20210706145817.24109-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42d; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x42d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, berrange@redhat.com, f4bug@amsat.org, stefanha@redhat.com, crosa@redhat.com, pbonzini@redhat.com, Mahmoud Mandour , Alexandre Iooss , =?utf-8?q?Alex_Benn=C3=A9e?= , aurelien@aurel32.net Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Alexandre Iooss This adds description of the execlog TCG plugin with an example. Signed-off-by: Alexandre Iooss Message-Id: <20210702081307.1653644-3-erdnaxe@crans.org> Signed-off-by: Alex Bennée --- docs/devel/tcg-plugins.rst | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) -- 2.20.1 diff --git a/docs/devel/tcg-plugins.rst b/docs/devel/tcg-plugins.rst index 0cd77c77d2..179867e9c1 100644 --- a/docs/devel/tcg-plugins.rst +++ b/docs/devel/tcg-plugins.rst @@ -320,3 +320,27 @@ the user to see what hardware is accessed how often. It has a number of options: off:0000001c, 1, 2 off:00000020, 1, 2 ... + +- contrib/plugins/execlog.c + +The execlog tool traces executed instructions with memory access. It can be used +for debugging and security analysis purposes. +Please be aware that this will generate a lot of output. + +The plugin takes no argument:: + + qemu-system-arm $(QEMU_ARGS) \ + -plugin ./contrib/plugins/libexeclog.so -d plugin + +which will output an execution trace following this structure:: + + # vCPU, vAddr, opcode, disassembly[, load/store, memory addr, device]... + 0, 0xa12, 0xf8012400, "movs r4, #0" + 0, 0xa14, 0xf87f42b4, "cmp r4, r6" + 0, 0xa16, 0xd206, "bhs #0xa26" + 0, 0xa18, 0xfff94803, "ldr r0, [pc, #0xc]", load, 0x00010a28, RAM + 0, 0xa1a, 0xf989f000, "bl #0xd30" + 0, 0xd30, 0xfff9b510, "push {r4, lr}", store, 0x20003ee0, RAM, store, 0x20003ee4, RAM + 0, 0xd32, 0xf9893014, "adds r0, #0x14" + 0, 0xd34, 0xf9c8f000, "bl #0x10c8" + 0, 0x10c8, 0xfff96c43, "ldr r3, [r0, #0x44]", load, 0x200000e4, RAM