From nobody Sat Nov 15 22:33:43 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=1747901628; cv=none; d=zohomail.com; s=zohoarc; b=VS1KpZ4gR0jEWZ8UMkhU3V+/flOVJfbiyyedELyse/ovLcl/OU1vMzsYBWkc+bNhoAaaLvdFmOHGvrOXD2Gk2L3yLOxB1hsEr8wuFH51tbd+YhjoPUs+4O01ZRMB+9hMc/N/SSSC+p3IspWtD5f7OdapF4wCFS2wvBf0o4nV76I= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1747901628; 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=IgsX1huACh7VTCiUpztcw7eKqW1XSWnMnfVw67cXa3ExvNUpWMC9Xg9jxCbPx7mb+vh2iTFOrq/Hxw+5F8QcE5/YESLE7EVheeigtMuoUksY3ygb79qXaTy4H3SMm0wSSrUVpzUJ1Xu6xB0JowXT57SBuEaRO27V636J/XS5IiY= 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 1747901628725837.657859437412; Thu, 22 May 2025 01:13:48 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uI13F-0007Vx-6T; Thu, 22 May 2025 04:13:17 -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 1uI13A-0007UY-Pq for qemu-devel@nongnu.org; Thu, 22 May 2025 04:13:12 -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 1uI138-0003Nu-Bw for qemu-devel@nongnu.org; Thu, 22 May 2025 04:13:12 -0400 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id A497EA4BDFE; Thu, 22 May 2025 08:13:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50B13C4CEE4; Thu, 22 May 2025 08:13:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747901588; bh=mH6lWprZNCprzCYvb030arSxaYfC8yISrfaAKMY3jr8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s5K1pbSKi6aRhlFXDxm6yvh3ExHVlD7+JLXo4kHbTcuc0BU51nPVHpsV4lXsD1hbM JFMVBFqD4T/YFgYkkke3XCs6nKdXP5XrpXSAn9BSi31nOGvin5leQRyRsNp8HHVXUY ljkF/zVda/yMozcdMS+NPMh3LERSG73XgMpfdixR803FV5lOXhdVFy7oUD4GL+Dx6W xrQqvnxxEOawJExAbXI5wdPStTMSQJ0CfxXGtmOEDw5h04KKXhs991AAJ7Z/mGfyhw gTjGm8pM3tgEoDQTi8w42b/p7aaH/hU8buUTlJLwyJZaKPa0V9zyc48bxU5TFy58bt MESdky+2KnQsA== From: deller@kernel.org To: Stefan Hajnoczi , Richard Henderson , qemu-devel@nongnu.org Cc: Helge Deller Subject: [PULL 2/3] linux-user/hppa: Send proper si_code on SIGFPE exception Date: Thu, 22 May 2025 10:12:56 +0200 Message-ID: <20250522081257.3409-3-deller@kernel.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250522081257.3409-1-deller@kernel.org> References: <20250522081257.3409-1-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: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.184, 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: 1747901629151116600 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