1#!/bin/sh
2# LLVM LOCAL file B&I
3
4set -x
5
6# Build LLVM the "Apple way".
7# Parameters:
8
9# The first parameter is a space-separated list of the architectures the
10# compilers will run on. For instance, "ppc i386". If the current machine
11# isn't in the list, it will (effectively) be added.
12HOSTS="$1"
13
14# The second parameter is a space-separated list of the architectures the
15# compilers will generate code for. If the current machine isn't in the list, a
16# compiler for it will get built anyway, but won't be installed.
17# FIXME: The list of targets is currently hard-coded and TARGETS is not used.
18TARGETS="$2"
19
20# The third parameter is the path to the compiler sources. There should be a
21# shell script named 'configure' in this directory. This script makes a copy...
22ORIG_SRC_DIR="$3"
23
24# The fourth parameter is the location where the LLVM will be installed. You can
25# move it once it's built, so this mostly controls the layout of $DEST_DIR.
26DEST_ROOT="$4"
27
28# The fifth parameter is the place where the compiler will be copied once it's
29# built.
30DEST_DIR="$5"
31
32# The sixth parameter is a directory in which to place information (like
33# unstripped executables and generated source files) helpful in debugging the
34# resulting compiler.
35SYM_DIR="$6"
36
37# The seventh parameter is a yes/no that indicates whether assertions should be
38# enabled in the LLVM libs/tools.
39LLVM_ASSERTIONS="$7"
40
41# The eighth parameter is a yes/no that indicates whether this is an optimized
42# build.
43LLVM_OPTIMIZED="$8"
44
45# A yes/no parameter that controls whether to cross-build for an ARM host.
46ARM_HOSTED_BUILD="$9"
47
48# A yes/no parameter that controls whether to cross-build for the iOS simulator
49IOS_SIM_BUILD="${10}"
50
51# The version number of the submission, e.g. 1007.
52LLVM_SUBMIT_VERSION="${11}"
53
54# The subversion number of the submission, e.g. 03.
55LLVM_SUBMIT_SUBVERSION="${12}"
56
57# The current working directory is where the build will happen. It may already
58# contain a partial result of an interrupted build, in which case this script
59# will continue where it left off.
60DIR=`pwd`
61
62DARWIN_VERS=`uname -r | sed 's/\..*//'`
63echo DARWIN_VERS = $DARWIN_VERS
64
65################################################################################
66# Run the build.
67
68# Create the source tree we'll actually use to build, deleting
69# tcl since it doesn't actually build properly in a cross environment
70# and we don't really need it.
71SRC_DIR=$DIR/src
72rm -rf $SRC_DIR || exit 1
73mkdir $SRC_DIR || exit 1
74ln -s $ORIG_SRC_DIR/* $SRC_DIR/ || exit 1
75# We can't use the top-level Makefile as-is.  Remove the soft link:
76rm $SRC_DIR/Makefile || exit 1
77# Now create our own by editing the top-level Makefile, deleting every line marked "Apple-style":
78sed -e '/[Aa]pple-style/d' -e '/include.*GNUmakefile/d' $ORIG_SRC_DIR/Makefile > $SRC_DIR/Makefile || exit 1
79
80# Build the LLVM tree universal.
81mkdir -p $DIR/obj-llvm || exit 1
82cd $DIR/obj-llvm || exit 1
83
84if [ "$ARM_HOSTED_BUILD" = yes ]; then
85  # The cross-tools' build process expects to find an existing cross toolchain
86  # under names like 'arm-apple-darwin$DARWIN_VERS-as'; so make them.
87  rm -rf $DIR/bin || exit 1
88  mkdir $DIR/bin || exit 1
89  for prog in ar nm ranlib strip lipo ld as ; do
90    P=$DIR/bin/arm-apple-darwin$DARWIN_VERS-${prog}
91    T=`xcrun -sdk $SDKROOT -find ${prog}`
92    echo '#!/bin/sh' > $P || exit 1
93    echo 'exec '$T' "$@"' >> $P || exit 1
94    chmod a+x $P || exit 1
95  done
96  # Set up the links for clang.
97  for prog in clang clang++ ; do
98    P=$DIR/bin/arm-apple-darwin$DARWIN_VERS-${prog}
99    T=`xcrun -sdk $SDKROOT -find ${prog}`
100    echo '#!/bin/sh' > $P || exit 1
101    echo 'exec '$T' -arch armv7 -isysroot '${SDKROOT}' "$@"' >> $P || exit 1
102    chmod a+x $P || exit 1
103  done
104
105  PATH=$DIR/bin:$PATH
106fi
107
108if [ "$ARM_HOSTED_BUILD" = yes ]; then
109  configure_opts="--enable-targets=arm --host=arm-apple-darwin10 \
110                  --target=arm-apple-darwin10 --build=i686-apple-darwin10"
111elif [ "$IOS_SIM_BUILD" = yes ]; then
112  # Use a non-standard "darwin_sim" host triple to trigger a cross-build.
113  configure_opts="--enable-targets=x86 --host=i686-apple-darwin_sim \
114                  --build=i686-apple-darwin10"
115else
116  configure_opts="--enable-targets=arm,x86"
117fi
118
119if [ "$ARM_HOSTED_BUILD" != yes ]; then
120  if [ $SDKROOT ]; then
121    CPPFLAGS="$CPPFLAGS -isysroot $SDKROOT"
122  fi
123  for host in $HOSTS; do :; done
124  CPPFLAGS="$CPPFLAGS -arch $host"
125fi
126
127if [ \! -f Makefile.config ]; then
128  $SRC_DIR/configure --prefix=$DEST_DIR$DEST_ROOT $configure_opts \
129    --enable-assertions=$LLVM_ASSERTIONS \
130    --enable-optimized=$LLVM_OPTIMIZED \
131    --disable-bindings \
132    CPPFLAGS="$CPPFLAGS" \
133    || exit 1
134fi
135
136SUBVERSION=`echo $RC_ProjectSourceVersion | sed -e 's/.*\.\([0-9]*\).*/\1/'`
137
138if [ "x$SUBVERSION" != "x$RC_ProjectSourceVersion" ]; then
139    LLVM_SUBMIT_SUBVERSION=`printf "%02d" $SUBVERSION`
140    RC_ProjectSourceVersion=`echo $RC_ProjectSourceVersion | sed -e 's/\..*//'`
141    LLVM_SUBMIT_VERSION=$RC_ProjectSourceVersion
142fi
143
144if [ "x$LLVM_SUBMIT_SUBVERSION" = "x00" -o "x$LLVM_SUBMIT_SUBVERSION" = "x0" ]; then
145    LLVM_VERSION="$LLVM_SUBMIT_VERSION"
146else
147    LLVM_VERSION="$LLVM_SUBMIT_VERSION-$LLVM_SUBMIT_SUBVERSION"
148fi
149
150# Figure out how many make processes to run.
151SYSCTL=`sysctl -n hw.activecpu`
152# sysctl -n hw.* does not work when invoked via B&I chroot /BuildRoot.
153# Builders can default to 2, since even if they are single processor,
154# nothing else is running on the machine.
155if [ -z "$SYSCTL" ]; then
156    SYSCTL=2
157fi
158JOBS_FLAG="-j $SYSCTL"
159
160make $JOBS_FLAG $OPTIMIZE_OPTS UNIVERSAL=1 UNIVERSAL_ARCH="$HOSTS" \
161    UNIVERSAL_SDK_PATH=$SDKROOT \
162    NO_RUNTIME_LIBS=1 \
163    DISABLE_EDIS=1 \
164    REQUIRES_RTTI=1 \
165    DEBUG_SYMBOLS=1 \
166    LLVM_SUBMIT_VERSION=$LLVM_SUBMIT_VERSION \
167    LLVM_SUBMIT_SUBVERSION=$LLVM_SUBMIT_SUBVERSION \
168    CXXFLAGS="-DLLVM_VERSION_INFO='\" Apple Build #$LLVM_VERSION\"'" \
169    VERBOSE=1
170
171if [ $? != 0 ] ; then
172    echo "error: LLVM 'make' failed!"
173    exit 1
174fi 
175
176################################################################################
177# Construct the actual destination root, by copying stuff from $DIR/dst-* to
178# $DEST_DIR, with occasional 'lipo' commands.
179
180cd $DEST_DIR || exit 1
181
182# Clean out DEST_DIR in case -noclean was passed to buildit.
183rm -rf * || exit 1
184
185cd $DIR/obj-llvm || exit 1
186
187# Install the tree into the destination directory.
188make $LOCAL_MAKEFLAGS $OPTIMIZE_OPTS UNIVERSAL=1 UNIVERSAL_ARCH="$HOSTS" \
189    NO_RUNTIME_LIBS=1 \
190    DISABLE_EDIS=1 \
191    DEBUG_SYMBOLS=1 \
192    LLVM_SUBMIT_VERSION=$LLVM_SUBMIT_VERSION \
193    LLVM_SUBMIT_SUBVERSION=$LLVM_SUBMIT_SUBVERSION \
194    OPTIMIZE_OPTION='-O3' VERBOSE=1 install
195
196if ! test $? == 0 ; then
197    echo "error: LLVM 'make install' failed!"
198    exit 1
199fi 
200
201# Install Version.h
202LLVM_MINOR_VERSION=`echo $LLVM_SUBMIT_SUBVERSION | sed -e 's,0*\([1-9][0-9]*\),\1,'`
203if [ "x$LLVM_MINOR_VERSION" = "x" ]; then
204    LLVM_MINOR_VERSION=0
205fi
206RC_ProjectSourceSubversion=`printf "%d" $LLVM_MINOR_VERSION`
207echo "#define LLVM_VERSION ${RC_ProjectSourceVersion}" > $DEST_DIR$DEST_ROOT/include/llvm/Version.h
208echo "#define LLVM_MINOR_VERSION ${RC_ProjectSourceSubversion}" >> $DEST_DIR$DEST_ROOT/include/llvm/Version.h
209
210# Find the right version of strip to use.
211STRIP=strip
212if [ -n "$SDKROOT" ]; then
213  STRIP=`xcrun -sdk $SDKROOT -find strip`
214fi
215
216if [ "x$LLVM_DEBUG" != "x1" ]; then
217    # Strip local symbols from llvm libraries.
218    #
219    # Use '-l' to strip i386 modules. N.B. that flag doesn't work with kext or
220    # PPC objects!
221    $STRIP -Sl $DEST_DIR$DEST_ROOT/lib/*.[oa]
222    for f in `ls $DEST_DIR$DEST_ROOT/lib/*.so`; do
223        $STRIP -Sxl $f
224    done
225fi
226
227# Remove .dir files 
228cd $DEST_DIR$DEST_ROOT
229rm -f bin/.dir etc/llvm/.dir lib/.dir
230
231# The Hello dylib is an example of how to build a pass.
232# The BugpointPasses module is only used to test bugpoint.
233# These unversioned dylibs cause verification failures, so do not install them.
234# (The wildcards are used to match a "lib" prefix if it is present.)
235rm $DEST_DIR$DEST_ROOT/lib/*LLVMHello.dylib
236rm $DEST_DIR$DEST_ROOT/lib/*BugpointPasses.dylib
237
238# Compress manpages
239MDIR=$DEST_DIR$DEST_ROOT/share/man/man1
240gzip -f $MDIR/*
241
242################################################################################
243# Create SYM_DIR with information required for debugging.
244
245# Figure out how many make processes to run.
246SYSCTL=`sysctl -n hw.activecpu`
247
248# hw.activecpu only available in 10.2.6 and later
249if [ -z "$SYSCTL" ]; then
250  SYSCTL=`sysctl -n hw.ncpu`
251fi
252
253# sysctl -n hw.* does not work when invoked via B&I chroot /BuildRoot. Builders
254# can default to 2, since even if they are single processor, nothing else is
255# running on the machine.
256if [ -z "$SYSCTL" ]; then
257  SYSCTL=2
258fi
259
260cd $SYM_DIR || exit 1
261
262# Clean out SYM_DIR in case -noclean was passed to buildit.
263rm -rf * || exit 1
264
265# Generate .dSYM files
266find $DEST_DIR -perm -0111 -type f \
267    ! \( -name '*.la' -o -name gccas -o -name gccld -o -name llvm-config -o -name '*.a' \) \
268    -print | xargs -n 1 -P ${SYSCTL} dsymutil
269
270# Save .dSYM files and .a archives
271cd $DEST_DIR || exit 1
272find . \( -path \*.dSYM/\* -or -name \*.a \) -print \
273    | cpio -pdml $SYM_DIR || exit 1
274
275# Save source files.
276mkdir $SYM_DIR/src || exit 1
277cd $DIR || exit 1
278find obj-* -name \*.\[chy\] -o -name \*.cpp -print \
279    | cpio -pdml $SYM_DIR/src || exit 1
280
281################################################################################
282# Remove libLTO.dylib and lto.h.  Those are installed by clang.
283
284cd $DEST_DIR$DEST_ROOT
285rm -f lib/libLTO.dylib
286rm -f lib/libLTO.a lib/libLTO.la
287find $DEST_DIR$DEST_ROOT -name lto.h -delete
288
289################################################################################
290# Remove debugging information from DEST_DIR.
291
292cd $DIR || exit 1
293
294find $DEST_DIR -name \*.a -print | xargs ranlib || exit 1
295find $DEST_DIR -name \*.dSYM -print | xargs rm -r || exit 1
296
297# Strip debugging information from files
298#
299# Use '-l' to strip i386 modules. N.B. that flag doesn't work with kext or
300# PPC objects!
301find $DEST_DIR -perm -0111 -type f \
302    ! \( -name '*.la' -o -name gccas -o -name gccld -o -name llvm-config \) \
303    -print | xargs -n 1 -P ${SYSCTL} $STRIP -arch all -Sl
304
305chgrp -h -R wheel $DEST_DIR
306chgrp -R wheel $DEST_DIR
307
308################################################################################
309# Remove the docs directory
310
311rm -rf $DEST_DIR$DEST_ROOT/docs
312
313################################################################################
314# w00t! Done!
315
316exit 0
317