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Date: Mon, 1 Dec 2025 16:09:42 +0000 Message-ID: <20251201160943.1342099-2-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251201160943.1342099-1-peter.maydell@linaro.org> References: <20251201160943.1342099-1-peter.maydell@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=2a00:1450:4864:20::429; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x429.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: 2.1.29 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-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1764608172118019201 Content-Type: text/plain; charset="utf-8" From: Harald van Dijk trans_BRA does gen_a64_set_pc(s, dst); set_btype_for_br(s, a->rn); gen_a64_set_pc does s->pc_save =3D -1; set_btype_for_br (if aa64_bti is enabled and the register is not x16 or x17) does gen_pc_plus_diff(s, pc, 0); gen_pc_plus_diff does assert(s->pc_save !=3D -1); Hence, this assert is getting hit. We need to call set_btype_for_br before gen_a64_set_pc, and there is nothing in set_btype_for_br that depends on gen_a64_set_pc having already been called, so this commit simply swaps the calls. (The commit message for 64678fc45d8f6 says that set_brtype_for_br() must be "moved after" get_a64_set_pc(), but this is a mistake in the commit message -- the actual changes in that commit move set_brtype_for_br() *before* get_a64_set_pc() and this is necessary to avoid the assert.) Cc: qemu-stable@nongnu.org Fixes: 64678fc45d8f6 ("target/arm: Fix BTI versus CF_PCREL") Signed-off-by: Harald van Dijk Reviewed-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: d2265ebb-84bc-41b7-a2d7-05dc9a5a2055@accesssoftek.com [PMM: added note about 64678fc45d8f6 to commit message] Signed-off-by: Peter Maydell --- target/arm/tcg/translate-a64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 08b21d7dbfa..cde22a5cca7 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -1916,8 +1916,8 @@ static bool trans_BRA(DisasContext *s, arg_bra *a) return false; } dst =3D auth_branch_target(s, cpu_reg(s,a->rn), cpu_reg_sp(s, a->rm), = !a->m); - gen_a64_set_pc(s, dst); set_btype_for_br(s, a->rn); + gen_a64_set_pc(s, dst); s->base.is_jmp =3D DISAS_JUMP; return true; } --=20 2.43.0 From nobody Mon Feb 9 10:10:25 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1764605422; cv=none; d=zohomail.com; s=zohoarc; b=f7O3HVYPz6xEd68vB2toWgpm6nf86ktcowuSFU7Ur8T7WrxlnCMEOgvWERaaoRi8ktDzWQMcEM0dcm1b2pcX/6B1DWqSs9MXCNi/719QWi+G3x3UZJACDhkd++iuNpztkTCF/7/Y5sn7jbJHtTmhlcOhMkeWhiQ2DXDOZg0LE60= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1764605422; h=Content-Transfer-Encoding:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To:Cc; bh=cXZSWZVPXYYtfb9H/CJHQ3ZoTteMVQNNkIFtS3dLOP8=; b=cujOvCADrenS0N+cZfu7dwKuiOsnY9CK8Vk+EDNJYoIu9VvKYdWbA7jEoDYQuXYeSxMzOYKGJTooDkVgFc1ucJW6N4n7GF4AXOTutdgh93+ibFSR6n/Khy2VlvCqJjj9bo/LXfAiXHdwzNP7lpojrq3mdj7NbqWaGOXVjFJmUOo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1764605422625741.3279000145892; Mon, 1 Dec 2025 08:10:22 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vQ6TV-0003IG-Fe; Mon, 01 Dec 2025 11:10:08 -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 1vQ6TI-0003CH-AR for qemu-devel@nongnu.org; Mon, 01 Dec 2025 11:09:55 -0500 Received: from mail-wr1-x436.google.com ([2a00:1450:4864:20::436]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1vQ6TF-00084h-Q3 for qemu-devel@nongnu.org; Mon, 01 Dec 2025 11:09:51 -0500 Received: by mail-wr1-x436.google.com with SMTP id ffacd0b85a97d-42e2e6aa22fso784125f8f.2 for ; Mon, 01 Dec 2025 08:09:48 -0800 (PST) Received: from orth.archaic.org.uk (orth.archaic.org.uk. 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The canonical git repo for this script has moved; update the link. Cc: qemu-stable@nongnu.org Signed-off-by: Peter Maydell Reviewed-by: Thomas Huth Message-id: 20251125164511.255550-1-peter.maydell@linaro.org --- docs/devel/submitting-a-pull-request.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/devel/submitting-a-pull-request.rst b/docs/devel/submitti= ng-a-pull-request.rst index a4cd7ebbb6a..e7d00808782 100644 --- a/docs/devel/submitting-a-pull-request.rst +++ b/docs/devel/submitting-a-pull-request.rst @@ -67,7 +67,7 @@ subject tag is "PULL SUBSYSTEM s390/block/whatever" rathe= r than just pull requests that should be applied to master. =20 You might be interested in the `make-pullreq -`__ +`__ script which automates some of this process for you and includes a few sanity checks. Note that you must edit it to configure it suitably for your local situation! --=20 2.43.0