From patchwork Tue Nov 10 11:11:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Huth X-Patchwork-Id: 1397555 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: 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=b3iPHXUJ; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CVld924wVz9s1l for ; Tue, 10 Nov 2020 22:14:53 +1100 (AEDT) Received: from localhost ([::1]:59300 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcRbv-0002m8-6c for incoming@patchwork.ozlabs.org; Tue, 10 Nov 2020 06:14:51 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:44900) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kcRZE-00075S-Ql for qemu-devel@nongnu.org; Tue, 10 Nov 2020 06:12:06 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:32799) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kcRZB-0004bw-20 for qemu-devel@nongnu.org; Tue, 10 Nov 2020 06:12:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605006720; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:content-type:content-type:in-reply-to:in-reply-to: references:references; bh=curk6aRgfvQd5PuCN+FruMdP+NuNnu3mSZJo9whc/+g=; b=b3iPHXUJ4cH78v+CO1w2EQXJuAYFhHdDScXutSWar0Uk7gCB2PPvn83dspAP2Yl5k68Y+r gIefFNQXY9psCwyeNASxKdoDEEkURlSkC3A+Jro0xRsxy/I9lmYWBVe2VvDY1/sEs5RG7y cy/ZifR1WO/kNgWuxva89/CpHUxDMV4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-553-cH5ezNDoOTWTSN2gkqpOfQ-1; Tue, 10 Nov 2020 06:11:58 -0500 X-MC-Unique: cH5ezNDoOTWTSN2gkqpOfQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5060A801FD4; Tue, 10 Nov 2020 11:11:57 +0000 (UTC) Received: from thuth.com (ovpn-113-192.ams2.redhat.com [10.36.113.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id DA30510013D9; Tue, 10 Nov 2020 11:11:55 +0000 (UTC) From: Thomas Huth To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 11/19] fuzz: Make fork_fuzz.ld compatible with LLVM's LLD Date: Tue, 10 Nov 2020 12:11:24 +0100 Message-Id: <20201110111132.559399-12-thuth@redhat.com> In-Reply-To: <20201110111132.559399-1-thuth@redhat.com> References: <20201110111132.559399-1-thuth@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=thuth@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/10 02:00:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexander Bulekov , Cornelia Huck Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Daniele Buono LLVM's linker, LLD, supports the keyword "INSERT AFTER", starting with version 11. However, when multiple sections are defined in the same "INSERT AFTER", they are added in a reversed order, compared to BFD's LD. This patch makes fork_fuzz.ld generic enough to work with both linkers. Each section now has its own "INSERT AFTER" keyword, so proper ordering is defined between the sections added. Signed-off-by: Daniele Buono Message-Id: <20201105221905.1350-2-dbuono@linux.vnet.ibm.com> Reviewed-by: Alexander Bulekov Tested-by: Alexander Bulekov Signed-off-by: Thomas Huth --- tests/qtest/fuzz/fork_fuzz.ld | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/tests/qtest/fuzz/fork_fuzz.ld b/tests/qtest/fuzz/fork_fuzz.ld index bfb667ed06..cfb88b7fdb 100644 --- a/tests/qtest/fuzz/fork_fuzz.ld +++ b/tests/qtest/fuzz/fork_fuzz.ld @@ -16,6 +16,11 @@ SECTIONS /* Lowest stack counter */ *(__sancov_lowest_stack); } +} +INSERT AFTER .data; + +SECTIONS +{ .data.fuzz_ordered : { /* @@ -34,6 +39,11 @@ SECTIONS */ *(.bss._ZN6fuzzer3TPCE); } +} +INSERT AFTER .data.fuzz_start; + +SECTIONS +{ .data.fuzz_end : ALIGN(4K) { __FUZZ_COUNTERS_END = .; @@ -43,4 +53,4 @@ SECTIONS * Don't overwrite the SECTIONS in the default linker script. Instead insert the * above into the default script */ -INSERT AFTER .data; +INSERT AFTER .data.fuzz_ordered;