From nobody Wed Dec 17 09:14:59 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; t=1747483363; cv=none; d=zohomail.com; s=zohoarc; b=ZF8WD18qkAOJ+3wZayd67csjQRTe99+wnDHDR5zQDe+m2R/ITXOwlm8qCgAVWfNu0QPozQcdCEhQzYEVIGvUnUaZ8doOhCJB5fodm4TCjrTEBl8PEBndMB62IV1HLVzx4KJMn1Pr4pwoOqJQ8sJdaGoMbcEly/LXQMXGjcwo1Nw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1747483363; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=C7mAlUGWD1imFksAuAzOntMacMpa31nId6s/lTOwUNg=; b=g6/ge8UWA57YjE/dSzNRtVdqiRzM8r0RpjJmbsHhNQRfeosRphioGwGVIo5OMKM/Ky3q7C6BjQiXlm4xYeep2H2ISUK6f4kfhdZMuTRQqmdIYhFp8FHzZd0dah+mJP9vuLHmqOwaK0QTCJ9uU5zGAKykFTUraG/5x8S90L3xfjc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1747483363208499.15122734209956; Sat, 17 May 2025 05:02:43 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uGGEi-00012V-9j; Sat, 17 May 2025 08:01:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uGGE4-000055-AV for qemu-devel@nongnu.org; Sat, 17 May 2025 08:01:13 -0400 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uGGE0-0002iY-Sg for qemu-devel@nongnu.org; Sat, 17 May 2025 08:01:12 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 7151CA4E40A; Sat, 17 May 2025 12:00:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3596C4CEE3; Sat, 17 May 2025 12:00:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747483258; bh=mH6lWprZNCprzCYvb030arSxaYfC8yISrfaAKMY3jr8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h7UxJ0EYXOrd7kG/WkGf5py6AGc3RVGqiiT0U0M6uJEShaxDXWNlhdXCql9+ANM1h 0aspvERN7zbUzwaJWCw/FIHDwPYfr9ePuxSvgQ3NGWcfQ/pgqkEwJ+qcPKY74A2QCP cGHmqYfrKZXSYo7q7vbIL28SDu+n0Kx8NEfMpI0yA8EsfyyYRIEfjE9ktbt2wPwLkO 6HRwJ9yooFsRsIehnamwg04EvFtgKGTfZStDdgNSW/nGyxO9w0Ee7KJyxoWS/LMCrr rDzq+z8aZtcLbDMEKi6j+ZbRrxYqDBdgOSC+1UcYlNBhPmiwrP4+FMNAz56Mhs5DQo gujPbA1/YnUhA== From: deller@kernel.org To: Richard Henderson , qemu-devel@nongnu.org Cc: Helge Deller Subject: [PATCH 2/3] linux-user/hppa: Send proper si_code on SIGFPE exception Date: Sat, 17 May 2025 14:00:52 +0200 Message-ID: <20250517120053.18231-3-deller@kernel.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250517120053.18231-1-deller@kernel.org> References: <20250517120053.18231-1-deller@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2604:1380:45d1:ec00::3; envelope-from=deller@kernel.org; helo=nyc.source.kernel.org X-Spam_score_int: -36 X-Spam_score: -3.7 X-Spam_bar: --- X-Spam_report: (-3.7 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.616, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @kernel.org) X-ZM-MESSAGEID: 1747483364632116600 Content-Type: text/plain; charset="utf-8" From: Helge Deller Improve the linux-user emulation to send the correct si_code depending on overflow (TARGET_FPE_FLTOVF), underflow (TARGET_FPE_FLTUND), ... Note that the hardware stores the relevant flags in FP exception register #1, which is actually the lower 32-bits of the 64-bit fr[0] register in qemu. Signed-off-by: Helge Deller --- linux-user/hppa/cpu_loop.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/linux-user/hppa/cpu_loop.c b/linux-user/hppa/cpu_loop.c index 890e758cd1..9abaad5ef8 100644 --- a/linux-user/hppa/cpu_loop.c +++ b/linux-user/hppa/cpu_loop.c @@ -112,7 +112,7 @@ static abi_ulong hppa_lws(CPUHPPAState *env) void cpu_loop(CPUHPPAState *env) { CPUState *cs =3D env_cpu(env); - abi_ulong ret; + abi_ulong ret, si_code =3D 0; int trapnr; =20 while (1) { @@ -169,7 +169,15 @@ void cpu_loop(CPUHPPAState *env) force_sig_fault(TARGET_SIGFPE, TARGET_FPE_CONDTRAP, env->iaoq_= f); break; case EXCP_ASSIST: - force_sig_fault(TARGET_SIGFPE, 0, env->iaoq_f); + #define set_si_code(mask, val) \ + if (env->fr[0] & mask) { si_code =3D val; } + set_si_code(R_FPSR_FLG_I_MASK, TARGET_FPE_FLTRES); + set_si_code(R_FPSR_FLG_U_MASK, TARGET_FPE_FLTUND); + set_si_code(R_FPSR_FLG_O_MASK, TARGET_FPE_FLTOVF); + set_si_code(R_FPSR_FLG_Z_MASK, TARGET_FPE_FLTDIV); + set_si_code(R_FPSR_FLG_V_MASK, TARGET_FPE_FLTINV); + #undef set_si_code + force_sig_fault(TARGET_SIGFPE, si_code, env->iaoq_f); break; case EXCP_BREAK: force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->iaoq_f= ); --=20 2.47.0