xref: /illumos-gate/usr/src/cmd/sgs/rtld/common/mapfile-order-gcc (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3)
1#
2# CDDL HEADER START
3#
4# The contents of this file are subject to the terms of the
5# Common Development and Distribution License (the "License").
6# You may not use this file except in compliance with the License.
7#
8# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9# or http://www.opensolaris.org/os/licensing.
10# See the License for the specific language governing permissions
11# and limitations under the License.
12#
13# When distributing Covered Code, include this CDDL HEADER in each
14# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15# If applicable, add the following below this CDDL HEADER, with the
16# fields enclosed by brackets "[]" replaced with your own identifying
17# information: Portions Copyright [yyyy] [name of copyright owner]
18#
19# CDDL HEADER END
20#
21
22#
23# Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
24#
25# Note: This mapfile is used to place r_debug as the
26# very first data item inside of the run-time linker.
27# This is required for the ld.so.1 <--> rtld_db bootstraping
28# for debuggers.
29#
30# The issue with this is that gcc/devpro do not agree on the
31# name of the section this data should be placed in.  So -
32# we must have a mapfile for each.
33#
34# If you update this file - make sure you update
35# the matching file:
36#
37#	gcc mapfile:	rtld/common/mapfile-order-gcc
38#	devpro mapfile: rtld/common/mapfile-order-devpro
39#
40
41$mapfile_version 2
42
43LOAD_SEGMENT data {
44	FLAGS = READ WRITE EXECUTE;
45
46	# .data.rel sections from pics/debugdata.o go to data segment
47	ASSIGN_SECTION dbg_data {
48		IS_NAME = .data.rel;
49		FILE_PATH = pics/debugdata.o;
50	};
51
52	# Put .data.rel sections from pics/debugdata.o ahead of any other
53	# .data.rel input sections in the .data.rel output section.
54	IS_ORDER = dbg_data;
55
56	# Put .data.rel output section at top of data segment
57	OS_ORDER = .data.rel;
58};
59