From patchwork Fri Oct 16 18:41:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1383500 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=X3da8qp9; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CCZnk00bJz9sTv for ; Sat, 17 Oct 2020 05:44:41 +1100 (AEDT) Received: from localhost ([::1]:60628 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTUiV-0001m4-Nf for incoming@patchwork.ozlabs.org; Fri, 16 Oct 2020 14:44:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55144) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTUgM-0000UF-55 for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:27 -0400 Received: from mail-pf1-x443.google.com ([2607:f8b0:4864:20::443]:43122) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTUgA-000251-Uk for qemu-devel@nongnu.org; Fri, 16 Oct 2020 14:42:24 -0400 Received: by mail-pf1-x443.google.com with SMTP id a200so1976452pfa.10 for ; Fri, 16 Oct 2020 11:42:13 -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=zVLgn+OX/nTD/oUAFauTpXTtA86xiUG6+rSs26rONZM=; b=X3da8qp97zHh18bfs//PjWRI7eoJKP8qXb0hu58E3tvMElVxzcK3VZXcftBvUJWUZT Zai2wqepNHmk1CYOF5UTMOKYyz4PA4wSzIWCo730xtyFo0jlab8MxR+hEHylDunD8T+/ 8a9sE6vx+TRM2aE/piEXv8PGGaGtqFSOSajShCv9vLqHwga2QjVNwYLQl37WVDi/AlEs 2E25smK9Gelcbp0eKbc/yebt6xzGMSAFXKFHDa6JkKaXelqKYxbtckbQDC9VObKscCkt 3M8sa0V2vmrsbIpvz+FD8HbVeCxO3dT6aHFWZrcaCdUoPwMGwyVekz6qPevPYNGK/rbr sTKw== 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=zVLgn+OX/nTD/oUAFauTpXTtA86xiUG6+rSs26rONZM=; b=UL9/zSo+S6WixMqUoQYZk3tqA5qkvWeiJjKt35i6xGoPibZdRfi7lYHv1eH0PH0RuT sZZ7GfqKsFD2E26a2933SXjDMluxT5g3nHOSsM4o2Gz2lpAvoVpsgCl8mQzwcAH910sw Nd7LyGRkBr9Mybo1ZDLyMwN3hkRr69Ra2n0ort7KH47D7NVlTVDo0r5wqUD/LxlXX57O 10qxcZAYQOf5LYf4Miw6r4yAbUF0tJMkfNByQpYRUTz8x0HdJVTpF/4jMqcsNvmXKaJx s2RmzQGpeCtj5Urx1b4nffWS+/5K5PW3rCF9cSOx0hJKx5l1iKjx4dM4LryAMeg7XRFb UDcg== X-Gm-Message-State: AOAM530jNO7XecnKghIKQvtDucAApuVpagneJrcr2SVEsUnXogxuqkFF BztLTMuTxK6abzu2ncsx+pJ95XfJRW7+5A== X-Google-Smtp-Source: ABdhPJyNq7fQaW86kRVsgO2N4V68S3cs6eqwd5iqB4LY7We4DRd3XSUVc72nxVezT5wMoWiFIC74Og== X-Received: by 2002:a62:5b81:0:b029:156:2dce:5aa with SMTP id p123-20020a625b810000b02901562dce05aamr4938299pfb.15.1602873732189; Fri, 16 Oct 2020 11:42:12 -0700 (PDT) Received: from localhost.localdomain ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id c15sm3426011pgg.77.2020.10.16.11.42.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2020 11:42:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v11 01/12] linux-user/aarch64: Reset btype for signals Date: Fri, 16 Oct 2020 11:41:56 -0700 Message-Id: <20201016184207.786698-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201016184207.786698-1-richard.henderson@linaro.org> References: <20201016184207.786698-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::443; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x443.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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=unavailable 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: peter.maydell@linaro.org, qemu-arm@nongnu.org, alex.bennee@linaro.org, laurent@vivier.eu Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The kernel sets btype for the signal handler as if for a call. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- linux-user/aarch64/signal.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/linux-user/aarch64/signal.c b/linux-user/aarch64/signal.c index d50c1ae583..b591790c22 100644 --- a/linux-user/aarch64/signal.c +++ b/linux-user/aarch64/signal.c @@ -506,10 +506,16 @@ static void target_setup_frame(int usig, struct target_sigaction *ka, + offsetof(struct target_rt_frame_record, tramp); } env->xregs[0] = usig; - env->xregs[31] = frame_addr; env->xregs[29] = frame_addr + fr_ofs; - env->pc = ka->_sa_handler; env->xregs[30] = return_addr; + env->xregs[31] = frame_addr; + env->pc = ka->_sa_handler; + + /* Invoke the signal handler as if by indirect call. */ + if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { + env->btype = 2; + } + if (info) { tswap_siginfo(&frame->info, info); env->xregs[1] = frame_addr + offsetof(struct target_rt_sigframe, info);