From nobody Mon Sep 16 19:00:15 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1678486426257305.9487852375171; Fri, 10 Mar 2023 14:13:46 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pakvs-0008JH-N3; Fri, 10 Mar 2023 17:09:48 -0500 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 1pakvp-0008Gq-31 for qemu-devel@nongnu.org; Fri, 10 Mar 2023 17:09:45 -0500 Received: from mout.kundenserver.de ([212.227.126.131]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pakvn-00034M-4x for qemu-devel@nongnu.org; Fri, 10 Mar 2023 17:09:44 -0500 Received: from quad ([82.64.211.94]) by mrelayeu.kundenserver.de (mreue011 [212.227.15.167]) with ESMTPSA (Nemesis) id 1MvKGv-1qRD3k0ter-00rET9; Fri, 10 Mar 2023 23:09:41 +0100 From: Laurent Vivier To: qemu-devel@nongnu.org Cc: Laurent Vivier , Richard Henderson Subject: [PULL 26/28] linux-user/sparc: Handle floating-point exceptions Date: Fri, 10 Mar 2023 23:09:25 +0100 Message-Id: <20230310220927.326606-27-laurent@vivier.eu> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230310220927.326606-1-laurent@vivier.eu> References: <20230310220927.326606-1-laurent@vivier.eu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:4P9Zsn7G8HSfHDsvdt0KtNizKfMoOCm/eELvFsgqzdfKLA5o1tg Ir5k8FDWW8vRgIEQxdT3grF5Q40hUyvir+wrWCVO2DUEl/Ml9EUHGYcmgR9eTZemVriZU0x 3iAF+fEcA5LjebEWODkbkyvZWG2W40uAEBjTAbVW4E9de/AWATdaiObMH1jCMQqhr8OUIhS 6ZbSVYPhecQwdzkQAuKkA== UI-OutboundReport: notjunk:1;M01:P0:T2yJJb6gBZg=;fOqjSSzcPA0hnDQqZUY3FYNbwvS SaC8GvjHFs61FHeXh+EYovzAqcet0VlG+FqRY8ySRbJYO/yGuH8T0kNfcTOU62gHuldjhqTZv 0Sb4ymrjmJUMcTLumv8oE8d5KHqNiWTmwpChfpqtG5YUdYhyO1QQJMD+FFOEwHUmkfh2I9MnS xUDUTWwtSgapDX04/5vxuYBYzQU/GqXl1qm/gmzeNozIPwgK4z+pg5cEMQ8P0AVlXFu2CgGjo o6Rsko4CnDmPORyiMzIBR2dwaVTL6bNt93ATwUl7RETtCUCWVNw+RkbKyUYNKtzns+aGTWxyZ UGHuKxZklVKGKLNEP85AkNmR1rCKSluSyEepNZk2ub+6CIyQSvIzEwnLGnT+J0fO3WhIjgGeB per3Y7P/ZOSRTsIs66zKAdxRtn3q0QVAvLNDpzRTF1AiIfMWNxKKThhZXO29VPvaxQfIIjSsK H4/HlnhLBeWPGb1vj8zs/GDFj8q2b9d1ej5sMzhoAq+ZICd6MEjVFMRFugljSTjG3wFGw75Zm s4TEoTYz0p2bUaPgywD9TErByC//80A6YFnxq+KIyUw/xyZzhcJXtoO1VjwnbGLr5xXiy0SmE X4NF96hQ72gTpYnz0dH5y0MXBuwVDgW5wnlYUa6JxXRvW//wmmw0hY614WDYoAW5Q9V8ObUi8 B45MHw5zZ3bmFlX8Prg3Av4dNEcpo7ZSwuYBD0lrmQ== 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=212.227.126.131; envelope-from=laurent@vivier.eu; helo=mout.kundenserver.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZM-MESSAGEID: 1678486428043100003 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Raise SIGFPE for ieee exceptions. The other types, such as FSR_FTT_UNIMPFPOP, should not appear, because we enable normal emulation of missing insns at the start of sparc_cpu_realizefn(). Signed-off-by: Richard Henderson Message-Id: <20230216054516.1267305-15-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier --- linux-user/sparc/cpu_loop.c | 22 ++++++++++++++++++++++ target/sparc/cpu.h | 3 +-- 2 files changed, 23 insertions(+), 2 deletions(-) diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c index 093358a39a4a..5a8a71e976bc 100644 --- a/linux-user/sparc/cpu_loop.c +++ b/linux-user/sparc/cpu_loop.c @@ -297,6 +297,28 @@ void cpu_loop (CPUSPARCState *env) restore_window(env); break; =20 + case TT_FP_EXCP: + { + int code =3D TARGET_FPE_FLTUNK; + target_ulong fsr =3D env->fsr; + + if ((fsr & FSR_FTT_MASK) =3D=3D FSR_FTT_IEEE_EXCP) { + if (fsr & FSR_NVC) { + code =3D TARGET_FPE_FLTINV; + } else if (fsr & FSR_OFC) { + code =3D TARGET_FPE_FLTOVF; + } else if (fsr & FSR_UFC) { + code =3D TARGET_FPE_FLTUND; + } else if (fsr & FSR_DZC) { + code =3D TARGET_FPE_FLTDIV; + } else if (fsr & FSR_NXC) { + code =3D TARGET_FPE_FLTRES; + } + } + force_sig_fault(TARGET_SIGFPE, code, env->pc); + } + break; + case EXCP_INTERRUPT: /* just indicate that signals should be handled asap */ break; diff --git a/target/sparc/cpu.h b/target/sparc/cpu.h index ed0069d0b196..fb98843dad53 100644 --- a/target/sparc/cpu.h +++ b/target/sparc/cpu.h @@ -197,8 +197,7 @@ enum { #define FSR_FTT2 (1ULL << 16) #define FSR_FTT1 (1ULL << 15) #define FSR_FTT0 (1ULL << 14) -//gcc warns about constant overflow for ~FSR_FTT_MASK -//#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0) +#define FSR_FTT_MASK (FSR_FTT2 | FSR_FTT1 | FSR_FTT0) #ifdef TARGET_SPARC64 #define FSR_FTT_NMASK 0xfffffffffffe3fffULL #define FSR_FTT_CEXC_NMASK 0xfffffffffffe3fe0ULL --=20 2.39.2