From nobody Tue Feb 10 09:58:20 2026 Delivered-To: importer@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+importer=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 1678282376697536.9386780342452; Wed, 8 Mar 2023 05:32:56 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pZttu-0004Xs-1E; Wed, 08 Mar 2023 08:32:15 -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 1pZtrD-0001ql-Pv for qemu-devel@nongnu.org; Wed, 08 Mar 2023 08:29:35 -0500 Received: from mout.kundenserver.de ([212.227.17.24]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pZtr3-00069G-66 for qemu-devel@nongnu.org; Wed, 08 Mar 2023 08:29:22 -0500 Received: from quad ([82.142.8.70]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MRnXY-1pykFs3thy-00TF9w; Wed, 08 Mar 2023 14:29:15 +0100 From: Laurent Vivier To: qemu-devel@nongnu.org Cc: Richard Henderson , Laurent Vivier Subject: [PULL 26/28] linux-user/sparc: Handle floating-point exceptions Date: Wed, 8 Mar 2023 14:28:55 +0100 Message-Id: <20230308132857.161793-27-laurent@vivier.eu> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230308132857.161793-1-laurent@vivier.eu> References: <20230308132857.161793-1-laurent@vivier.eu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:cdCaLCEuPYp6LjNd40NuPkbrygQXunlN85LjOx8UtRkulL4eRbq FKWLDDz3DAZGZhlm5QRudExxwxKBjq9lGV+QyeGQMIZoXaPfM8bYtulCyANOuxr+MYNOfN6 a6Jg9ZIc34/6qyHbP2Ymme4INDwR3SUifVyLfpMsR5jjgsjUL0H4okJYu/RGWj0ivrLdCEK zY1Z9e66e/3o71x91LSkA== UI-OutboundReport: notjunk:1;M01:P0:gKuMY2h/z8M=;gBtJ6krGvV5XDr0qfqEtvX/GGTB l4OJ7ROjZ1zZ8+BBjqsi2MMQc+6ZMq32CHMA3lEEgi5T3WtIne9UEKq2MAeLYbxAF1/bYX/Ub GMN6sMtR+vVMyy+QaC/JY9K48p+0cr8ryZN1cJw4NrokWx4ehvwlS6nEjZapfxnFB0+fpT4zH 1YzJbhYrvxInzxdi/PQ3vo+7REfp4/ptEPTmJ7tDX62lP0hRP7X0rN1NtAcqZ9y25iDYifU0C /zMTmXgwdn2mpfziWleDCpgT7HK3P2xp+m2it23sRAwuD2u2nxQXhYQpI/ESVmP4pwFLjrbHD ZxcVJg4WAx3c7n3m9HoYUcsNd0wEwEBnq5fXWbg8kSPbSW7vei+Hm117OJgsN+AJp0CmO0cbe zVDgjh/twz9HPeSDYxoNBopFgBq7cbe9vMPeNe/fB4zhLqe2K6592vKM8V4dMaUF+Fv8+J+ef 6dlPgVXTYbWPg4UIzIzmLPeaeh3XyDdW1wc2CGMej3pJ8FyIw7O9SnfUoXFPmqa8MWDPDnEY+ 8YTjjt3UAn5l3vlhBO/FN2arNPh9XXzYbnZ+oKZXNlrzr/FWfMeZkSZB6scVzIFXd0PRQgt7m jX2rlzcrbW+AZ9up3ZqtZC5yA7xyCBXrYO5aaJCOmHGISXlHMbF198ZG7IKGe7eoJzU/Cdkvy c9ff09ZjHaz1NEyvGQvLyhqb/a3Dj+CGd2UxpxwDVw== 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: none client-ip=212.227.17.24; 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1678282378878100006 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