1# 2# Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 3# 4# CDDL HEADER START 5# 6# The contents of this file are subject to the terms of the 7# Common Development and Distribution License (the "License"). 8# You may not use this file except in compliance with the License. 9# 10# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11# or http://www.opensolaris.org/os/licensing. 12# See the License for the specific language governing permissions 13# and limitations under the License. 14# 15# When distributing Covered Code, include this CDDL HEADER in each 16# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17# If applicable, add the following below this CDDL HEADER, with the 18# fields enclosed by brackets "[]" replaced with your own identifying 19# information: Portions Copyright [yyyy] [name of copyright owner] 20# 21# CDDL HEADER END 22# 23# Link-editor mapfile that enables the creation of a bss segment, and aligns 24# the segment at 4Mb. This effectively provides an appropriate alignment for 25# large page mapping of the heap, and thus can be useful when building dynamic 26# executables. See ppgsz(1). Users are cautioned that an alignment 27# specification may be machine-specific, and may lose its benefit on different 28# hardware platforms. A more flexible means of requesting the most optimal 29# underlying page size may evolve in future releases. 30# 31# The link-editor does not use this file automatically, so one must use the 32# -M option to cc or ld: 33# 34# cc -M /usr/lib/ld/map.bssalign myprogram.c 35# 36 37$mapfile_version 2 38 39LOAD_SEGMENT bss { 40 ALIGN = 0x400000; 41}; 42