From nobody Sat Nov 15 19:43:34 2025 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 1748175423279726.564755571531; Sun, 25 May 2025 05:17:03 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uJADd-0005Dr-7j; Sun, 25 May 2025 08:12:47 -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 1uJACc-0002bn-QC; Sun, 25 May 2025 08:11:43 -0400 Received: from isrv.corpit.ru ([86.62.121.231]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uJACZ-0003vS-Fs; Sun, 25 May 2025 08:11:41 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id D59AC124E6C; Sun, 25 May 2025 15:08:18 +0300 (MSK) Received: from think4mjt.origo (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id E3A36215FD3; Sun, 25 May 2025 15:08:19 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Helge Deller , Michael Tokarev Subject: [Stable-10.0.1 58/59] linux-user/hppa: Send proper si_code on SIGFPE exception Date: Sun, 25 May 2025 15:08:15 +0300 Message-Id: <20250525120818.273372-35-mjt@tls.msk.ru> X-Mailer: git-send-email 2.39.5 In-Reply-To: References: 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=86.62.121.231; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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-ZM-MESSAGEID: 1748175424761116600 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 (cherry picked from commit b4b49cf39dba5f993ad925f204cb820aacfc8e45) Signed-off-by: Michael Tokarev 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 2.39.5