From nobody Tue Feb 10 07:42:04 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624167129814491.8924106570063; Sat, 19 Jun 2021 22:32:09 -0700 (PDT) Received: from localhost ([::1]:57332 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1luq40-00019s-DN for importer@patchew.org; Sun, 20 Jun 2021 01:32:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46624) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lupxy-00072r-H0 for qemu-devel@nongnu.org; Sun, 20 Jun 2021 01:25:54 -0400 Received: from mail-pf1-x433.google.com ([2607:f8b0:4864:20::433]:39542) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lupxt-00088T-KY for qemu-devel@nongnu.org; Sun, 20 Jun 2021 01:25:54 -0400 Received: by mail-pf1-x433.google.com with SMTP id g192so3389263pfb.6 for ; Sat, 19 Jun 2021 22:25:49 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id 21sm11409741pfh.103.2021.06.19.22.25.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Jun 2021 22:25:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=tK/+Hz+jguD/DmBbj1fKqabLd+FiOnfaK8a7Km7K6/I=; b=FZNFSP+dfei2aV+JvPV9d9rsjDtFKRYPrV/umuTNc4DnbMPnC0iY+9NS1yHNKhOA99 uUmIY0gEbe9DIL9+gbdVHVHPyV0wlw7+oGpos9HLX4ZR8T7qmjz787JYTR62RaQhvsxs KttEvYAzD8RxSZ7leI/m3wjuBu5mu3nESCUyMTJgyJVYikWe6Fedoz9ymcLqyIXcvYMq wGuY0c5RnL9Zf3JzHCSs7I3284ol2HkPfrqx359CmZZsb6YMxOGi+9sGYqdJ8GZOh97g nITmGGTRSS8vBfa83cJi9yxk5RYVCGO1XB0wXwTK70zdp0azjtgVxqM8osl6e0A+0Lh3 hG7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=tK/+Hz+jguD/DmBbj1fKqabLd+FiOnfaK8a7Km7K6/I=; b=GnVGE0Q74JNY8jV7HGU3/4qfhJySwReE4htA9OW6iDhHZXU0hZp987hARvZ0mgSucV JVEq1/Uhax5wLsZB0X/ZcnxuIOs9lrYEcXduwnRM89YP8le87yNnUyBMVXyeYNJdbSeJ 6dw7WqiTghZ3asgD6xXBEllLcqFjuXXssehePMLIZP/cQ4GolaRvFastWL6lsup2R77S AjHjfrRkPKgemRu/q+ohVYXgIke/QzKaCUmFCwc2kOdtkaFTR4t6t1XBJdzn4XLeDVgc JoVNBHMkaXSAcOSjXxnog7HrLwdbSfVG+wKQr6TqJVsM4r59XAF3mAgVOha09V9xDt9P B6nw== X-Gm-Message-State: AOAM53134mst+aX1KH6pTq1nEzK/DIcs06tXFE9PJIv6UVPqqZX/3Dak sCKzQB4I09wsxrElHCcrSGgB0XYf2cp1jA== X-Google-Smtp-Source: ABdhPJynoNiuovWj8ZJkBFcZcZG00Qro4EQDTOq5d7+UV9quPYdvBqGFWBXGG/OJebk1ZyZoIskJPA== X-Received: by 2002:a05:6a00:26c6:b029:2f5:358c:6761 with SMTP id p6-20020a056a0026c6b02902f5358c6761mr13330929pfw.50.1624166748397; Sat, 19 Jun 2021 22:25:48 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 6/7] target/nios2: Remove assignment to env in handle_instruction Date: Sat, 19 Jun 2021 22:25:42 -0700 Message-Id: <20210620052543.1315091-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210620052543.1315091-1-richard.henderson@linaro.org> References: <20210620052543.1315091-1-richard.henderson@linaro.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=2607:f8b0:4864:20::433; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x433.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marex@denx.de, crwulff@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Direct assignments to env during translation do not work. As it happens, the only way we can get here is if env->pc is already set to dc->pc. We will trap on the first insn we execute anywhere on the page. Signed-off-by: Richard Henderson --- target/nios2/translate.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/nios2/translate.c b/target/nios2/translate.c index e2c8151193..ce4a4c40aa 100644 --- a/target/nios2/translate.c +++ b/target/nios2/translate.c @@ -740,14 +740,15 @@ static void handle_instruction(DisasContext *dc, CPUN= ios2State *env) uint32_t code; uint8_t op; const Nios2Instruction *instr; + #if defined(CONFIG_USER_ONLY) /* FIXME: Is this needed ? */ if (dc->pc >=3D 0x1000 && dc->pc < 0x2000) { - env->regs[R_PC] =3D dc->pc; t_gen_helper_raise_exception(dc, 0xaa); return; } #endif + code =3D cpu_ldl_code(env, dc->pc); op =3D get_opcode(code); =20 --=20 2.25.1