1#! /bin/sh
2
3########################################################################
4#
5# File:   gcc_build
6# Author: Mark Mitchell
7# Date:   2000-07-10
8#
9# Adapted to Subversion by Ben Elliston <bje@au.ibm.com>, 2005-07-14.
10#
11# Contents:
12#   Script to automatically download and build GCC.
13#
14# Copyright (c) 2000, 2001, 2003, 2005 Free Software Foundation.
15#
16# This file is part of GCC.
17#
18# GCC is free software; you can redistribute it and/or modify
19# it under the terms of the GNU General Public License as published by
20# the Free Software Foundation; either version 3, or (at your option)
21# any later version.
22#
23# GCC is distributed in the hope that it will be useful,
24# but WITHOUT ANY WARRANTY; without even the implied warranty of
25# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
26# GNU General Public License for more details.
27#
28# You should have received a copy of the GNU General Public License
29# along with GCC; see the file COPYING.  If not, write to
30# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
31# Boston, MA 02110-1301, USA.
32#
33########################################################################
34
35########################################################################
36# Notes
37########################################################################
38
39# You can set the following variables in the environment.  They 
40# have no corresponding command-line options because they should
41# only be needed infrequently:
42#
43#   MAKE                        The path to `make'.
44
45########################################################################
46# Functions
47########################################################################
48
49# Issue the error message given by $1 and exit with a non-zero
50# exit code.
51
52error() {
53    echo "gcc_build: error: $1"
54    exit 1
55}
56
57# Issue a usage message explaining how to use this script.
58
59usage() {
60cat <<EOF
61gcc_build        [-c configure_options] 
62		 [-d destination_directory]
63		 [-m make_boot_options]
64		 [-o objdir]
65		 [-b branch_name]
66		 [-u username]
67		 [-p protocol]
68		 [-t tarfile]
69                 [-x make_check_options]
70		 [bootstrap]
71		 [build]
72		 [checkout]
73		 [configure]
74		 [export]
75		 [install]
76		 [test]
77		 [update]
78EOF
79    exit 1
80}
81
82# Change to the directory given by $1.
83
84changedir() {
85    cd $1 || \
86	error "Could not change directory to $1"
87}
88
89# Checkout a fresh copy of the GCC build tree.
90
91checkout_gcc() {
92    # If the destination already exists, don't risk destroying it.
93    test -e ${DESTINATION} && \
94	error "${DESTINATION} already exists"
95
96    # Checkout the tree
97    test -n "${SVN_USERNAME}" && SVN_USERNAME="${SVN_USERNAME}@"
98    SVNROOT="${SVN_PROTOCOL}://${SVN_USERNAME}${SVN_SERVER}${SVN_REPOSITORY}${SVN_BRANCH}"
99
100    $GCC_SVN co $SVNROOT ${DESTINATION} || \
101	error "Could not check out GCC"
102}
103
104# Update GCC.
105
106update_gcc() {
107    # If the destination does not already exist, complain.
108    test -d ${DESTINATION} || \
109	error "${DESTINATION} does not exist"
110
111    # Enter the destination directory.
112    changedir ${DESTINATION}
113
114    # Update the tree
115    ./contrib/gcc_update || \
116	error "Could not update GCC"
117}
118
119# Configure for a build of GCC.
120
121configure_gcc() {
122    # Go to the source directory.
123    changedir ${DESTINATION}
124
125    # Remove the object directory.
126    rm -rf ${OBJDIR}
127    # Create it again.
128    mkdir ${OBJDIR} || \
129	error "Could not create ${OBJDIR}"
130    # Enter it.
131    changedir ${OBJDIR}
132
133    # Configure the tree.
134    echo "Configuring: ${DESTINATION}/configure ${CONFIGURE_OPTIONS}"
135    eval ${DESTINATION}/configure ${CONFIGURE_OPTIONS} || \
136	error "Could not configure the compiler"
137}
138
139# Bootstrap GCC.  Assume configuration has already occurred.
140
141bootstrap_gcc() {
142    # Go to the source directory.
143    changedir ${DESTINATION}
144    # Go to the object directory.
145    changedir ${OBJDIR}
146
147    # Bootstrap the compiler
148    echo "Building: ${MAKE} ${MAKE_BOOTSTRAP_OPTIONS} bootstrap"
149    eval ${MAKE} ${MAKE_BOOTSTRAP_OPTIONS} bootstrap || \
150	error "Could not bootstrap the compiler"
151}
152
153# Test GCC.
154
155test_gcc() {
156    # Go to the source directory.
157    changedir ${DESTINATION}
158    # Go to the object directory.
159    changedir ${OBJDIR}
160
161    echo "Running tests...  This will take a while."
162    eval \${MAKE} -k ${MAKE_CHECK_OPTIONS} check
163    ${DESTINATION}/contrib/test_summary
164}
165
166# Export the GCC source tree.
167
168export_gcc() {
169    # Go to the source directory.
170    changedir ${DESTINATION}
171    # Go up one level.
172    changedir ..
173    # Build a tarball of the source directory.
174    tar czf ${TARFILE} \
175	--exclude=${OBJDIR} \
176	--exclude=.svn \
177	--exclude='.#*' \
178	--exclude='*~' \
179	`basename ${DESTINATION}`
180}
181
182# Install GCC.
183
184install_gcc() {
185    # Go to the source directory.
186    changedir ${DESTINATION}
187    # Go to the object directory.
188    changedir ${OBJDIR}
189
190    ${MAKE} install || error "Installation failed"
191}
192
193########################################################################
194# Initialization
195########################################################################
196
197# SVN command
198GCC_SVN=${GCC_SVN-${SVN-svn}}
199# The SVN server containing the GCC repository.
200SVN_SERVER="gcc.gnu.org"
201# The path to the repository on that server.
202SVN_REPOSITORY="/svn/gcc/"
203# The branch to check out from that server.
204# Defaults to trunk if no branch is defined with -b.
205SVN_BRANCH=""
206# The SVN protocol to use.
207SVN_PROTOCOL="svn"
208# The username to use when connecting to the server.
209# An empty string means anonymous.
210SVN_USERNAME=""
211
212# The directory where the checked out GCC will be placed.
213DESTINATION="${HOME}/dev/gcc"
214# The relative path from the top of the source tree to the 
215# object directory.
216OBJDIR="objdir"
217
218# The file where the tarred up sources will be placed.
219TARFILE="${HOME}/dev/gcc.tgz"
220
221# Options to pass to configure.
222CONFIGURE_OPTIONS=
223# The `make' program.
224MAKE=${MAKE:-make}
225# Options to pass to "make bootstrap".
226MAKE_BOOTSTRAP_OPTIONS=
227# Options to pass to "make check".
228MAKE_CHECK_OPTIONS=
229
230# Modes of operation
231BOOTSTRAP=0
232CHECKOUT=0
233CONFIGURE=0
234EXPORT=0
235INSTALL=0
236TEST=0
237UPDATE=0
238
239########################################################################
240# Main Program
241########################################################################
242
243# Issue usage if no parameters are given.
244test $# -eq 0 && usage
245
246# Parse the options.
247while getopts "c:d:m:o:p:t:b:u:x:" ARG; do
248    case $ARG in
249    c)    CONFIGURE_OPTIONS="${OPTARG}";;
250    d)    DESTINATION="${OPTARG}";;
251    m)    MAKE_BOOTSTRAP_OPTIONS="${OPTARG}";;
252    o)    OBJDIR="${OPTARG}";;
253    p)    SVN_PROTOCOL="${OPTARG}";;
254    t)    TARFILE="${OPTARG}";;
255    x)    MAKE_CHECK_OPTIONS="${OPTARG}";;
256    b)    SVN_BRANCH="${OPTARG}";;
257    u)    SVN_USERNAME="${OPTARG}";;
258    \?)   usage;;
259    esac
260done
261shift `expr ${OPTIND} - 1`
262
263# Handle the major modes.
264while [ $# -ne 0 ]; do
265    case $1 in
266    bootstrap) BOOTSTRAP=1;;
267    build)    CONFIGURE=1; BOOTSTRAP=1;;
268    checkout) CHECKOUT=1;;
269    configure) CONFIGURE=1;;
270    export)   EXPORT=1;;
271    install)  INSTALL=1;;
272    test)     TEST=1;;
273    update)   UPDATE=1;;
274    *)        usage;;
275    esac
276    shift
277done
278
279# Check the arguments for sanity.
280if [ ${CHECKOUT} -ne 0 ] && [ ${UPDATE} -ne 0 ]; then
281    error "Cannot checkout and update simultaneously"
282fi
283
284if [ ${CHECKOUT} -eq 0 ] && test -n "${SVN_BRANCH}"; then
285    error "Branch argument only makes sense when doing a checkout"
286fi
287
288# Validate the branch name.
289if test -n "${SVN_BRANCH}"; then
290    SVN_BRANCH="branches/${SVN_BRANCH}";
291else
292    SVN_BRANCH="trunk";
293fi
294
295# Checkout the tree.
296if [ ${CHECKOUT} -ne 0 ]; then
297    checkout_gcc
298elif [ ${UPDATE} -ne 0 ]; then
299    update_gcc
300fi
301
302# Configure to build the tree.
303if [ ${CONFIGURE} -ne 0 ]; then
304    configure_gcc
305fi
306
307# Bootstrap the compiler.
308if [ ${BOOTSTRAP} -ne 0 ]; then
309    bootstrap_gcc
310fi
311
312# Test the compiler
313if [ ${TEST} -ne 0 ]; then
314    test_gcc
315fi
316
317# Install the compiler.
318if [ ${INSTALL} -ne 0 ]; then
319    install_gcc
320fi
321
322# Export the sources
323if [ ${EXPORT} -ne 0 ]; then
324    export_gcc
325fi
326