From nobody Fri Dec 19 06:56:53 2025 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 1624918325426347.4627702877026; Mon, 28 Jun 2021 15:12:05 -0700 (PDT) Received: from localhost ([::1]:54250 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lxzU4-0000WH-D9 for importer@patchew.org; Mon, 28 Jun 2021 18:12:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51172) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lxzQW-00011N-Ou for qemu-devel@nongnu.org; Mon, 28 Jun 2021 18:08:25 -0400 Received: from mail-pl1-x62f.google.com ([2607:f8b0:4864:20::62f]:40452) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lxzQQ-0006I7-U6 for qemu-devel@nongnu.org; Mon, 28 Jun 2021 18:08:24 -0400 Received: by mail-pl1-x62f.google.com with SMTP id m17so9746762plx.7 for ; Mon, 28 Jun 2021 15:08:16 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id l6sm16030164pgh.34.2021.06.28.15.08.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Jun 2021 15:08:15 -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=/6g32w52G2pzRv3LnQoNyzNgEZsD49+r9MgWNfn6Rxk=; b=QvKtXlnZbHcQY4OMIAeclzjAkPZV5JhwDnKEzNE8uqmfZkbjH9mq+kUvs5iIB2wKZe +p6DoliIy3qbRxd2DlJy6drAI5qHWYjKizqCqt2yvdVQDcfmkuCcIOP30jhX9kQoBgVZ 2W4bkJhyn2Qs3raF8YQqo7WTCeLY+hPE+4jea+UqMirTriso+jebOqJd43IE5mSIt2Nz Zm8QWVWp3nt2SskiU2WRSb2qvaNbFKMxs3zDrlmobgIHKuUgnI3exlsReHPsYnBoGjC8 TJpbeYnV6a+CMDOhQDfuhBjFirqGKqyelHeKolZAEFJPPyMefhJ1PbvjK3Xx4siCysk3 Glaw== 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=/6g32w52G2pzRv3LnQoNyzNgEZsD49+r9MgWNfn6Rxk=; b=OECAwMK3/J6bLKSlw+IQ1G87ZRFUbZUoBy/npSzkmrRrtgYvYa+PuUl4sv0/EQWWHn v421PZCtRCU2+Fjf3tqEWbLq2uUkW/ZWBRw8SDEf+Qcwgrm4ZtYQxMynGWOqzm6vSN8d gMKptKy7cFLKLCppEiBjFsJNC0V7z3SY/q0iFX9SnrJ5gjlFo9wW/i+cT1epM0vp8HUe 8zyFMA58VQzQWV/73sNaVtslr6BfV5OcwMTMfAAOxK93VxMVjW1vyZrteyFSD9iS/4Lm /GwtBG3NqTBS8gwuaHk0qoUhQVsJNqFs7raxGn18yxdSaZ/YGA/6GA2sVwyM5ZyOcj3W DJyQ== X-Gm-Message-State: AOAM531F58oCFQDqMIVTq1hO+dyANda6F4TGvSJlIawkuCkf7zLNoLWI SRGlWQ+Its1g7+WrLV5AgPJtrTi9UythTA== X-Google-Smtp-Source: ABdhPJyC+UrXmL1OIWNTPCrin94+fZ8/EAEEaun2m7KuEzfqASCMuuLXw1xwEiCARgQx24ppLhKY1g== X-Received: by 2002:a17:90a:cb0c:: with SMTP id z12mr24904103pjt.195.1624918095842; Mon, 28 Jun 2021 15:08:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v3 6/9] target/nios2: Remove assignment to env in handle_instruction Date: Mon, 28 Jun 2021 15:08:07 -0700 Message-Id: <20210628220810.2919600-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210628220810.2919600-1-richard.henderson@linaro.org> References: <20210628220810.2919600-1-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::62f; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62f.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 Reviewed-by: Peter Maydell --- 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 66f4c25b06..6fd4330b31 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