From owner-svn-src-stable@freebsd.org Thu Sep 24 19:33:36 2015 Return-Path: Delivered-To: svn-src-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 13040A07856; Thu, 24 Sep 2015 19:33:36 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id DD9E81C09; Thu, 24 Sep 2015 19:33:35 +0000 (UTC) (envelope-from emaste@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.70]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id t8OJXZVb002311; Thu, 24 Sep 2015 19:33:35 GMT (envelope-from emaste@FreeBSD.org) Received: (from emaste@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id t8OJXZtt002310; Thu, 24 Sep 2015 19:33:35 GMT (envelope-from emaste@FreeBSD.org) Message-Id: <201509241933.t8OJXZtt002310@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: emaste set sender to emaste@FreeBSD.org using -f From: Ed Maste Date: Thu, 24 Sep 2015 19:33:35 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r288184 - stable/10/contrib/binutils/gas X-SVN-Group: stable-10 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Sep 2015 19:33:36 -0000 Author: emaste Date: Thu Sep 24 19:33:35 2015 New Revision: 288184 URL: https://svnweb.freebsd.org/changeset/base/288184 Log: MFC r256692: Fix .debug_line prologue header length calculation for 64-bit DWARF The header_length field is the number of bytes following the field to the first byte of the line number program. The hard-coded constants previously here (4 + 2 + 4) were correct only for 32-bit DWARF. Sponsored by: DARPA, AFRL Modified: stable/10/contrib/binutils/gas/dwarf2dbg.c Directory Properties: stable/10/ (props changed) Modified: stable/10/contrib/binutils/gas/dwarf2dbg.c ============================================================================== --- stable/10/contrib/binutils/gas/dwarf2dbg.c Thu Sep 24 19:32:08 2015 (r288183) +++ stable/10/contrib/binutils/gas/dwarf2dbg.c Thu Sep 24 19:33:35 2015 (r288184) @@ -1271,6 +1271,7 @@ out_debug_line (segT line_seg) symbolS *line_end; struct line_seg *s; enum dwarf2_format d2f; + int sizeof_initial_length; int sizeof_offset; subseg_set (line_seg, 0); @@ -1287,27 +1288,24 @@ out_debug_line (segT line_seg) d2f = DWARF2_FORMAT (); if (d2f == dwarf2_format_32bit) { - expr.X_add_number = -4; - emit_expr (&expr, 4); - sizeof_offset = 4; + sizeof_initial_length = sizeof_offset = 4; } else if (d2f == dwarf2_format_64bit) { - expr.X_add_number = -12; - out_four (-1); - emit_expr (&expr, 8); + sizeof_initial_length = 12; sizeof_offset = 8; + out_four (-1); } else if (d2f == dwarf2_format_64bit_irix) { - expr.X_add_number = -8; - emit_expr (&expr, 8); - sizeof_offset = 8; + sizeof_initial_length = sizeof_offset = 8; } else { as_fatal (_("internal error: unknown dwarf2 format")); } + expr.X_add_number = -sizeof_initial_length; + emit_expr (&expr, sizeof_offset); /* Version. */ out_two (2); @@ -1316,7 +1314,7 @@ out_debug_line (segT line_seg) expr.X_op = O_subtract; expr.X_add_symbol = prologue_end; expr.X_op_symbol = line_start; - expr.X_add_number = - (4 + 2 + 4); + expr.X_add_number = - (sizeof_initial_length + 2 + sizeof_offset); emit_expr (&expr, sizeof_offset); /* Parameters of the state machine. */