xref: /illumos-gate/usr/src/cmd/sgs/rtld/common/mapfile-order-gcc (revision 8c426718)

#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
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#
# Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
#
# Note: This mapfile is used to place r_debug as the
# very first data item inside of the run-time linker.
# This is required for the ld.so.1 <--> rtld_db bootstraping
# for debuggers.
#
# The issue with this is that different compilers may not agree on the name of
# the section this data will be placed in.  So we must have a mapfile for
# each, though at present GCC is the only compiler.
#

$mapfile_version 2

LOAD_SEGMENT data {
	FLAGS = READ WRITE EXECUTE;

	# .data.rel sections from pics/debugdata.o go to data segment
	ASSIGN_SECTION dbg_data {
		IS_NAME = .data.rel;
		FILE_PATH = pics/debugdata.o;
	};

	# Put .data.rel sections from pics/debugdata.o ahead of any other
	# .data.rel input sections in the .data.rel output section.
	IS_ORDER = dbg_data;

	# Put .data.rel output section at top of data segment
	OS_ORDER = .data.rel;
};