aboutsummaryrefslogtreecommitdiff
path: root/libraries/lapack-atlas/lapack-atlas.SlackBuild
blob: 4659a7f7e6d3bb7b99af819412d45ff3733e735f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
#!/bin/sh

# Slackware script to build the LAPACK libraries against ATLAS.

# Written by Serban Udrea <s.udrea@gsi.de>
# Includes the code to make dynamic libs from the lapack.SlackBuild by
# Eugene Suter <easuter@gmail.com>

# Licence: LICENCE file in the tarball

PRGNAM=lapack-atlas
VERSION=${VERSION:-3.3.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

SRCNAM=lapack # The source is still that of LAPACK

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-${PRGNAM}
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  NOOPTFLAGS="-fPIC"
  LIBDIRSUFFIX="64"
fi

set -e # Exit on most errors

# This is the system destination directory. When installing the
# package produced by this script, LAPACK's files will be written to
# $SYS_DESTDIR/lib or $SYS_DESTDIR/lib64 on appropriate platforms, etc.
# Nevertheless, by default the documentation files go to
# /usr/doc/$PRGNAM-$VERSION. You may change this through the variable
# DEFAULT_DOCS, see below.
SYS_DESTDIR=${SYS_DESTDIR:-/usr}

# Check if SYS_DESTDIR is an absolute path. If not, exit with error.
# NOTE: The $ is used because echo adds a \n at the end of the string.
echo "$SYS_DESTDIR" | grep -vE '/\.\./|/\.\.$' | grep -qE '^/' || \
{ echo "ERROR: The system destination directory has no absolute path!" \
&& echo "       The value of SYS_DESTDIR is $SYS_DESTDIR" \
&& echo "       Please set it properly! " \
&& exit 1; }

# You may want to have the documentation files installed under
# $SYS_DESTDIR/doc/$PRGNAM-$VERSION not /usr/doc/$PRGNAM-$VERSION.
# To achieve this just set the following variable to something like
# "no".
DEFAULT_DOCS=${DEFAULT_DOCS:-yes}
DEFAULT_DOCS=$(echo "$DEFAULT_DOCS"|cut -b 1|tr a-z A-Z) # Make Y or N out of yes, Yes, No, no, etc.
if [ "$DEFAULT_DOCS" = "Y" ]; then
  DOC_DIR="$PKG/usr/doc/${PRGNAM}-$VERSION"
else
  DOC_DIR="$PKG$SYS_DESTDIR/doc/${PRGNAM}-$VERSION"
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-$VERSION
tar xvf $CWD/$SRCNAM-$VERSION.tgz
cd $SRCNAM-$VERSION

chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

# Within Makefile it is asumed that lapack_testing.py is executable. 
# This is not the case, thus if TEST_LAPACK is enabled, make fails.
chmod 755 ./lapack_testing.py

# If you say "no" here, the script will NOT try to link LAPACK against 
# the multi-threaded ATLAS libraries.  If you leave it to "yes" and the 
# multi-threaded ATLAS libraries are not available, the script will default 
# to linking against the single threaded ones and raise a warning.
USE_ATLAS_PT_LIBS="${USE_ATLAS_PT_LIBS:-yes}"
USE_ATLAS_PT_LIBS=$(echo "$USE_ATLAS_PT_LIBS"|cut -b 1|tr a-z A-Z) # Make Y or N out of yes, Yes, No, no, etc.

# Change the following to yes if you would like to run the tests for LAPACK.
TEST_LAPACK="${TEST_LAPACK:-no}"
# Make Y or N out of yes, Yes, No, no, etc.
TEST_LAPACK=$(echo "$TEST_LAPACK"|cut -b 1|tr a-z A-Z)

# Search for the latest installed atlas package 
# (not necessarily the one with the latest version).
# For this to work the system clock should also work properly.
# NOTE: The echo statement below is for getting around "set -e" this time.
ATLAS_PKG="$(ls -1 -dc /var/log/packages/atlas* 2>/dev/null | \
          head -n 1 || echo -n)"

# Check if an atlas package was found. Exit if not!
[ ! "$ATLAS_PKG" ] && \
echo "ERROR: Couldn't find the ATLAS package." && exit 1

# Pick up the SETTINGS file containing the appropriate flags, use again the 
# echo trick against "set -e".  You may also provide your own path to a file 
# containing apropriate settings, see the README for details
ATLAS_SETTINGS_FILE=${ATLAS_SETTINGS_FILE:-"/$(grep SETTINGS "$ATLAS_PKG" || echo -n)"}

[ "${ATLAS_SETTINGS_FILE}1" = "/1" ] && \
echo "ERROR: No location available for the file with ATLAS settings." && exit 1

# Check that we deal with a regular file which is readable
[ -f "$ATLAS_SETTINGS_FILE" -a -r "$ATLAS_SETTINGS_FILE" ] || \
{ echo "ERROR: $ATLAS_SETTINGS_FILE is not a regular file or is not readable by us." && exit 1; }

# Source the atlas settings.
. "$ATLAS_SETTINGS_FILE"

# Check for the presence of variables provided by the ATLAS_SETTINGS_FILE
{ [ "$ATLAS_COMPILER" ] && \
  [ "$ATLAS_F77FLAGS" ] && \
  [ "$ATLAS_NOOPT" ]; } ||
{ echo "ERROR: Improper ATLAS settings; empty or undefined variables." && exit 1; }

# This is the timer to be used for LAPACK. If you stay with gfortran,
# presently the default compiler on Slackware, you can leave the value as is.
# Otherwise, please read LAPACK's make.inc for more informations.
LAPACK_TIMER="${LAPACK_TIMER:-INT_ETIME}"

# Looking for the libraries provided by ATLAS. If one asks for threaded 
# libraries and these are available we will try to link against them.
if [ "$USE_ATLAS_PT_LIBS" = "Y" ]; then
  # Set proper library names for the threaded ATLAS libs.
  ATLAS_BLASLIB="libptf77blas.a"
  ATLAS_CBLASLIB="libptcblas.a"
  # Find out the full paths to the ATLAS libraries
  ATLAS_BLASLIB_P="/$(grep "$ATLAS_BLASLIB" "$ATLAS_PKG" || echo -n)"
  # We need this to finally link against the mixed LAPACK library, resulting 
  # from the full LAPACK and the optimized LAPACK routines provided by ATLAS.
  ATLAS_CBLASLIB_P="/$(grep "$ATLAS_CBLASLIB" "$ATLAS_PKG" || echo -n)" 
  if [ "${ATLAS_BLASLIB_P}1" = "/1" -o "${ATLAS_CBLASLIB_P}1" = "/1" ]; then
    # Oops! The threaded libraries are not available!
    echo ""
    echo "WARNING: No threaded ATLAS libraries available!"
    echo "WARNING: Linking against non-threaded libraries!"
    echo ""
    ATLAS_BLASLIB="libf77blas.a"
    ATLAS_CBLASLIB="libcblas.a"
    USE_ATLAS_PT_LIBS="N"
  fi
else
  # Set proper library names for the unthreaded ATLAS libs.
  ATLAS_BLASLIB="libf77blas.a"
  ATLAS_CBLASLIB="libcblas.a"
fi

# Find out the full paths to the ATLAS libraries
ATLAS_BLASLIB="/$(grep "$ATLAS_BLASLIB" "$ATLAS_PKG" || echo -n)"
ATLAS_CBLASLIB="/$(grep "$ATLAS_CBLASLIB" "$ATLAS_PKG" || echo -n)"
ATLAS_EXTRA_LIB="/$(grep libatlas.a "$ATLAS_PKG" || echo -n)"
ATLAS_LAPACK="/$(grep liblapack.a "$ATLAS_PKG" || echo -n)"

# Check that we got what we expected
{ [ "${ATLAS_BLASLIB}1" = "/1" ] || \
  [ "${ATLAS_CBLASLIB}1" = "/1" ] || \
  [ "${ATLAS_EXTRA_LIB}1" = "/1" ] || \
  [ "${ATLAS_LAPACK}1" = "/1" ]; } && \
{ echo "ERROR: ATLAS libraries missing from the Slackware ATLAS package log." && exit 1; }

# Check that the library files are there.
# NOTE: After the installation of this package, the incomplete LAPACK library 
#       installed by ATLAS gets substituted by the complete one provided by us
[ -f "$ATLAS_BLASLIB" -a -r "$ATLAS_BLASLIB" ] || \
{ echo "ERROR: $ATLAS_BLASLIB is not a regular file or is not readable by us." && exit 1; }

[ -f "$ATLAS_CBLASLIB" -a -r "$ATLAS_CBLASLIB" ] || \
{ echo "ERROR: $ATLAS_CBLASLIB is not a regular file or is not readable by us." && exit 1; }

[ -f "$ATLAS_EXTRA_LIB" -a -r "$ATLAS_EXTRA_LIB" ] || \
{ echo "ERROR: $ATLAS_EXTRA_LIB is not a regular file or is not readable by us." && exit 1; }

[ -f "$ATLAS_LAPACK" -a -r "$ATLAS_LAPACK" ] || \
{ echo "ERROR: $ATLAS_LAPACK is not a regular file or is not readable by us." && exit 1; }

ATLAS_LIBS="${ATLAS_BLASLIB} ${ATLAS_EXTRA_LIB}"

# Copy the pre-configured make.inc file but edit it accordingly
sed $CWD/make.inc.atlas \
    -e s%XXX_FORTRAN_XXX%"$ATLAS_COMPILER"% \
    -e s%XXX_TIMER_XXX%"$LAPACK_TIMER"% \
    -e s%XXX_BLASLIB_XXX%"$ATLAS_LIBS"% > \
    make.inc

# Set the compilation flags.
LAPACK_OPTS="$ATLAS_F77FLAGS $NOOPTFLAGS"
LAPACK_NOOPT="$ATLAS_NOOPT $NOOPTFLAGS"

# Build objects and static library files
make cleanlib
make OPTS="$LAPACK_OPTS" NOOPT="$LAPACK_NOOPT" lapacklib

# Merge the ATLAS incomplete LAPACK library with the
# just built full LAPACK.
mkdir -p merging_dir
( cd merging_dir
  ar x "$ATLAS_LAPACK"
  ar r "../lib${SRCNAM}.a" *.o
)
rm -rf merging_dir

if [ "$TEST_LAPACK" = "Y" ]; then
  # We want to test LAPACK, thus we have to build tmglib and then run the tests
  make OPTS="$LAPACK_OPTS" NOOPT="$LAPACK_NOOPT" tmglib
 
  # Update make.inc taking into account that the LAPACK library has
  # been merged with the optimized LAPACK routines provided by ATLAS.
  ATLAS_LIBS="${ATLAS_BLASLIB} ${ATLAS_CBLASLIB} ${ATLAS_EXTRA_LIB}"

  if [ "$USE_ATLAS_PT_LIBS" = "Y" ]; then
    # Add the threads library
    ATLAS_LIBS=${ATLAS_LIBS}" -lpthread"
  fi

  cat "$CWD/make.inc.atlas" | \
    sed -e s%XXX_FORTRAN_XXX%"$ATLAS_COMPILER"% \
      -e s%XXX_TIMER_XXX%"$LAPACK_TIMER"% \
      -e s%XXX_BLASLIB_XXX%"$ATLAS_LIBS"% > \
      make.inc

  make OPTS="$LAPACK_OPTS" NOOPT="$LAPACK_NOOPT" lapack_testing

  # Put the test results together
  TEST_OUTPUT="TEST.RESULTS.tgz"
  tar czf "$TEST_OUTPUT" TESTING/*.out
fi
 
#LAPACK only.
( mkdir "shared_$SRCNAM"
  cd "shared_$SRCNAM"
  ar -x "../lib$SRCNAM.a"
  gcc -fPIC -lgfortran -shared *.o -Wl,-soname,"$SRCNAM.so.$VERSION" \
      -o "lib$SRCNAM.so.$VERSION"
)

mkdir -p "$PKG$SYS_DESTDIR/lib${LIBDIRSUFFIX}"
cp "lib$SRCNAM.a" "$PKG$SYS_DESTDIR/lib${LIBDIRSUFFIX}"
cp "shared_$SRCNAM/lib$SRCNAM.so.$VERSION" "$PKG$SYS_DESTDIR/lib${LIBDIRSUFFIX}"
( cd "$PKG$SYS_DESTDIR/lib${LIBDIRSUFFIX}"
  chmod 755 "lib$SRCNAM.so.$VERSION"
  ln -s "lib$SRCNAM.so.$VERSION" "lib$SRCNAM.so"
)

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | \
  grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p "$DOC_DIR"
cat "$CWD/${PRGNAM}.SlackBuild" > "$DOC_DIR/${PRGNAM}.SlackBuild"
cat README > "$DOC_DIR/README"
cat "$CWD/README.SLACKWARE" > "$DOC_DIR/README.SLACKWARE"
cat LICENSE > "$DOC_DIR/LICENSE"

# If the tests have been performed, also copy the results to the doc directory.
if [ -f "$TEST_OUTPUT" ]; then
  cp -p "$TEST_OUTPUT" "$DOC_DIR"
fi

# Signal that lapack got compiled against atlas
# echo "Y" > "$DOC_DIR/WITH_ATLAS"

if [ "$USE_ATLAS_PT_LIBS" = "Y" ]; then
 # Signal that lapack got compiled with thread support
 echo "$USE_ATLAS_PT_LIBS" > "$DOC_DIR/WITH_THREADS"
fi

mkdir -p "$PKG/install"
cat $CWD/slack-desc > $PKG/install/slack-desc

cd "$PKG"
/sbin/makepkg -l y -c n $OUTPUT/${PRGNAM}-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}