From owner-svn-src-head@freebsd.org Mon Jul 20 18:22:38 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id ED59E365D51; Mon, 20 Jul 2020 18:22:38 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4B9VSt60rZz4P9k; Mon, 20 Jul 2020 18:22:38 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id B165211220; Mon, 20 Jul 2020 18:22:38 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 06KIMcCg065963; Mon, 20 Jul 2020 18:22:38 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 06KIMcbI065962; Mon, 20 Jul 2020 18:22:38 GMT (envelope-from markj@FreeBSD.org) Message-Id: <202007201822.06KIMcbI065962@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Mon, 20 Jul 2020 18:22:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363375 - head/contrib/elftoolchain/libdwarf X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: head/contrib/elftoolchain/libdwarf X-SVN-Commit-Revision: 363375 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Jul 2020 18:22:39 -0000 Author: markj Date: Mon Jul 20 18:22:38 2020 New Revision: 363375 URL: https://svnweb.freebsd.org/changeset/base/363375 Log: libdwarf: Hide SHT_NOBITS sections. gnu_debuglink external debug files will contain an .eh_frame section of type SHT_NOBITS. libdwarf does not handle such sections (or rather, it expects all debug sections to not have type SHT_NOBITS). Avoid loading SHT_NOBITS sections, to be consistent with SGI libdwarf's handling of this case. PR: 239516 Diagnosed by: Paco Pascal Reviewed by: emaste (previous version) Event: July 2020 Bugathon MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D25626 Modified: head/contrib/elftoolchain/libdwarf/libdwarf_elf_init.c Modified: head/contrib/elftoolchain/libdwarf/libdwarf_elf_init.c ============================================================================== --- head/contrib/elftoolchain/libdwarf/libdwarf_elf_init.c Mon Jul 20 17:44:13 2020 (r363374) +++ head/contrib/elftoolchain/libdwarf/libdwarf_elf_init.c Mon Jul 20 18:22:38 2020 (r363375) @@ -260,6 +260,9 @@ _dwarf_elf_init(Dwarf_Debug dbg, Elf *elf, Dwarf_Error goto fail_cleanup; } + if (sh.sh_type == SHT_NOBITS) + continue; + if ((name = elf_strptr(elf, e->eo_strndx, sh.sh_name)) == NULL) { DWARF_SET_ELF_ERROR(dbg, error); @@ -312,6 +315,9 @@ _dwarf_elf_init(Dwarf_Debug dbg, Elf *elf, Dwarf_Error ret = DW_DLE_ELF; goto fail_cleanup; } + + if (sh.sh_type == SHT_NOBITS) + continue; memcpy(&e->eo_shdr[j], &sh, sizeof(sh));