From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5CF9EC282DE for ; Thu, 13 Mar 2025 20:01:47 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4ZDJKx4BjBz3cCM; Fri, 14 Mar 2025 07:01:41 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1741866300; cv=none; b=Vfnm/iNPcdIte3N9H6axQUoCYWx7nrPFoVOrOphv5BSYl823zDx2Mur7xZ45m4Uj7i0cDO38rjM+ZDtTFeUCMDIhVo3froig17WbK76IvbvYqrqry7Qt6LJweOQ/Hx9rXWTAhg+7qvhVUL2oGLIGFnlWX0kZAyjDCWoMfN3uXwp8xPokf2JlPoA5CMcej0CyRFqIJ6P+bVgpJfS5ySE+fzwXAHUou1U/arfCC1WySx91NMDwZQ1Zrn3Jtdrm0nsGjzwffAlmeINa+ziO/UBvK4r16hj3zB/SpRQAAfCQ9UERHWEXVswAD1cv3QImI+ZsAJJl98qTrRclx/qIOZsASw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1741866300; c=relaxed/relaxed; bh=EdALik7flTFVSWTVblU8JKKGGV2JCoENkhxrfjNtUxw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-type; b=MjeyIGObgvqbRy3CxfZgTbXuklwRJkkaFu1z801U5PrqMM77e/m4Co0TT5AejAb/nl+SOZxQTgtRBByqkNh7wdqByUEbFed29LwzsVwCS6LtwfWTcip0qC5elxQkD6wLDAU2AwYA69nss7c2uCUi8DPHy+QpA5/sU6A+0hIBccFnCYeDOF/4SxuFX8prUNrIk3qVCkaeWMrFVhxlbMX18YDg+yCuYwy0tyz0rP/Hv5iJ8Hv+0+HPoXUvhM7olRVg08N56UCQYS2sqFnRgIbWRmfkhkfDzV8nBqONpHMcc85m0SHMAXrK31fdYK1GtRHK7MQFGiZ0UMuZaU4erNECyQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=HDUwsku5; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=JhFfb65d; dkim-atps=neutral; spf=pass (client-ip=170.10.133.124; helo=us-smtp-delivery-124.mimecast.com; envelope-from=acarmina@redhat.com; receiver=lists.ozlabs.org) smtp.mailfrom=redhat.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=HDUwsku5; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=JhFfb65d; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=redhat.com (client-ip=170.10.133.124; helo=us-smtp-delivery-124.mimecast.com; envelope-from=acarmina@redhat.com; receiver=lists.ozlabs.org) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4ZD5Jq3Y0Dz2ynL for ; Thu, 13 Mar 2025 22:44:59 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741866293; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EdALik7flTFVSWTVblU8JKKGGV2JCoENkhxrfjNtUxw=; b=HDUwsku52T2ebFubb0fL46MZQa2MunEfwZq4PVi6xPrrywjQMxaQopf8+f5zCYoAxteEB3 xaqk19lBYLT07dKklUnp691mkZuPMOxrSDdrxwt/7JWnnNAZVaKwAyHG7FmjJalo3EXW7g UU+C01IG94XqG+FyGX1MKTgk+UhH2ls= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741866294; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EdALik7flTFVSWTVblU8JKKGGV2JCoENkhxrfjNtUxw=; b=JhFfb65dbLIFuTOsmZM5CyAKYRE/nYHwuuMUhfMFJXL71ecgONeVT5sCU0JRbnXWD4mjRw lvGo4rzE2KKAHaAR6Sjbaw7cgLxcwbzmlOQn3InlGswLBFVfjH5CFHvADo36gSWlI307hK tLxIwCyVHTjMXtBBhaYy7bzTtx3Zz7w= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-214-H8qLI-7xMuqU11I5HQkj_A-1; Thu, 13 Mar 2025 07:44:52 -0400 X-MC-Unique: H8qLI-7xMuqU11I5HQkj_A-1 X-Mimecast-MFC-AGG-ID: H8qLI-7xMuqU11I5HQkj_A_1741866292 Received: by mail-wr1-f70.google.com with SMTP id ffacd0b85a97d-391459c0395so372327f8f.2 for ; Thu, 13 Mar 2025 04:44:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1741866291; x=1742471091; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=EdALik7flTFVSWTVblU8JKKGGV2JCoENkhxrfjNtUxw=; b=StF/I2yHtqUZmblDc1tALglwNhuraGLo1vXATsohs3CJDrdKxBnFhAIm340le4jvp+ LXFfL7KDr5+MouX0SOa2BTjUMZEu4YoaCW83HLVQRMMsneY1TUdPBcTfAYnPnZH1CBmy h1rAVs1B/A7hkaPPG7O+HHICFH8LzS/zaOq7NmOmBgFkLQ+2CT5zwzrqCOJgDfAFeuYu 3FjdCs4vOREp/GC42dz/hshfooh+3dhrufAn/B2LJk17pS/BRuweqKnfA/9H4u0diGY2 LHQUNfLroYUam7+COaymj/8xYfZBO1PzJQETXOLybBMOY09h58veyTRqW7M2El+APT9k eCOQ== X-Forwarded-Encrypted: i=1; AJvYcCXdhpa65sfr5Ls6NNAdwjAPaLUR33QGKY5g7zOVP+wJQZ0MXNLb8CxiQbrZxmQcm0tW0XssrDaemyICz5U=@lists.ozlabs.org X-Gm-Message-State: AOJu0Yx4ac2kbPL9BfpfrpN0G5QEza0S6f6M5LDNIw8ADdFGCneIMWB+ q8h1xl9g1i4Jzze4e8SFS9AGeYVfv0G3YcaqyqPh6WMcLC9RqJLctuRIz09SQPf7QDeQAK/aowo 2TU9sHAxUVBSYEmCLYnrsvo3s73fjce3ljDb3xVjZo19ujNeAwOtOBfCCqEY+rHA= X-Gm-Gg: ASbGncsjLD9MeqN/rH/qIRkU8HsIGhA2vgydbAv5j9KADHHnxQ4dACQaer1UkUsT514 jpv4gw/rUcKKnawX5TRgduSChDGVySZvT8pk+LKFsNBSgaKvTNYnepvGPTVCeW2VPik4j0h9AoE 4hRB3NhMmWDc2adNaiWRdS+9jE63iuTx9UJF8wisJmqe5vshYWm4JLoe/JgXK0ZEUvflAn1DrSG OO0+XMoYPKHaGNaHN7eNYXWFYoGSHXaYU2f0vCchjdmqvu2+824KZD6nLu69FPuvmJjQtBE9Uc9 MkeDqXEfer0pJDT+lY7g X-Received: by 2002:a5d:64a4:0:b0:391:a74:d7dc with SMTP id ffacd0b85a97d-39132db7543mr19148430f8f.50.1741866291553; Thu, 13 Mar 2025 04:44:51 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFc68icOs2UFLsGvYM02K+KaAXrxdUkEYYl5CYIXnV4BsTbvYwzMB6bzWlvY18H1nYSqaV5qQ== X-Received: by 2002:a5d:64a4:0:b0:391:a74:d7dc with SMTP id ffacd0b85a97d-39132db7543mr19148405f8f.50.1741866291178; Thu, 13 Mar 2025 04:44:51 -0700 (PDT) Received: from lab.hqhome163.com ([81.57.75.210]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-43d188b754asm17844115e9.14.2025.03.13.04.44.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Mar 2025 04:44:50 -0700 (PDT) From: Alessandro Carminati To: linux-kselftest@vger.kernel.org Cc: David Airlie , Arnd Bergmann , =?UTF-8?q?Ma=C3=ADra=20Canal?= , Dan Carpenter , Kees Cook , Daniel Diaz , David Gow , Arthur Grillo , Brendan Higgins , Naresh Kamboju , Maarten Lankhorst , Andrew Morton , Maxime Ripard , =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Daniel Vetter , Thomas Zimmermann , Guenter Roeck , Alessandro Carminati , Jani Nikula , dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, loongarch@lists.linux.dev, x86@kernel.org, Linux Kernel Functional Testing , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Alessandro Carminati Subject: [PATCH v4 10/14] s390: Add support for suppressing warning backtraces Date: Thu, 13 Mar 2025 11:43:25 +0000 Message-Id: <20250313114329.284104-11-acarmina@redhat.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250313114329.284104-1-acarmina@redhat.com> References: <20250313114329.284104-1-acarmina@redhat.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: omw4d6m2oVosu2zqgedhwKw8OaGp-f37yp3DjBKUquU_1741866292 X-Mimecast-Originator: redhat.com Content-type: text/plain Content-Transfer-Encoding: 8bit From: Guenter Roeck Add name of functions triggering warning backtraces to the __bug_table object section to enable support for suppressing WARNING backtraces. To limit image size impact, the pointer to the function name is only added to the __bug_table section if both CONFIG_KUNIT_SUPPRESS_BACKTRACE and CONFIG_DEBUG_BUGVERBOSE are enabled. Otherwise, the __func__ assembly parameter is replaced with a (dummy) NULL parameter to avoid an image size increase due to unused __func__ entries (this is necessary because __func__ is not a define but a virtual variable). Tested-by: Linux Kernel Functional Testing Acked-by: Dan Carpenter Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Alexander Gordeev Signed-off-by: Guenter Roeck Signed-off-by: Alessandro Carminati --- arch/s390/include/asm/bug.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h index c500d45fb465..44d4e9f24ae0 100644 --- a/arch/s390/include/asm/bug.h +++ b/arch/s390/include/asm/bug.h @@ -8,6 +8,15 @@ #ifdef CONFIG_DEBUG_BUGVERBOSE +#ifdef CONFIG_KUNIT_SUPPRESS_BACKTRACE +# define HAVE_BUG_FUNCTION +# define __BUG_FUNC_PTR " .long %0-.\n" +# define __BUG_FUNC __func__ +#else +# define __BUG_FUNC_PTR +# define __BUG_FUNC NULL +#endif /* CONFIG_KUNIT_SUPPRESS_BACKTRACE */ + #define __EMIT_BUG(x) do { \ asm_inline volatile( \ "0: mc 0,0\n" \ @@ -17,10 +26,12 @@ ".section __bug_table,\"aw\"\n" \ "2: .long 0b-.\n" \ " .long 1b-.\n" \ - " .short %0,%1\n" \ - " .org 2b+%2\n" \ + __BUG_FUNC_PTR \ + " .short %1,%2\n" \ + " .org 2b+%3\n" \ ".previous\n" \ - : : "i" (__LINE__), \ + : : "i" (__BUG_FUNC), \ + "i" (__LINE__), \ "i" (x), \ "i" (sizeof(struct bug_entry))); \ } while (0) -- 2.34.1