1#!/bin/sh
2#
3# parameters <machine> <haiku sourcedir> <buildtools dir> <install dir>
4
5# get and check the parameters
6if [ $# -lt 4 ]; then
7	echo Usage: $0 '<machine> <haiku sourcedir> <buildtools dir>' \
8		'<install dir> [extra make flags]' >&2
9	exit 1
10fi
11
12set -e
13
14if [ -z "$MAKE" ]; then
15	echo "MAKE undefined. Assuming make."
16	export MAKE=make
17fi
18
19haikuMachine=$1
20haikuSourceDir=$2
21buildToolsDir=$3
22installDir=$4
23shift 4
24additionalMakeArgs=$*
25gdbSourceDir="$HAIKU_USE_GDB"
26
27ccFlags="-O2"
28#CLang needs c++14 to build ISL: https://dev.haiku-os.org/ticket/16434
29cxxFlags="-O2 -std=c++14"
30binutilsTargets="$haikuMachine"
31gdbTarget="$haikuMachine"
32case $haikuMachine in
33i586-*)
34	binutilsConfigureArgs="--disable-multilib"
35	gccConfigureArgs="--disable-multilib"
36	binutilsTargets="$binutilsTargets,i386-efi-pe,x86_64-efi-pe"
37	gdbConfigureArgs="--disable-multilib"
38	;;
39x86_64-*)
40	binutilsConfigureArgs="--enable-multilib"
41	gccConfigureArgs="--enable-multilib"
42	binutilsTargets="$binutilsTargets,i386-efi-pe,x86_64-efi-pe"
43	gdbConfigureArgs="--disable-multilib"
44	;;
45m68k-*)
46	binutilsConfigureArgs="--enable-multilib"
47	gccConfigureArgs="--enable-multilib"
48	gdbConfigureArgs="--disable-multilib"
49	gdbTarget="m68k-unknown-elf"
50	;;
51arm-*)
52	# Multilib creates a lot of confusion as the wrong libs end up being linked.
53	# For now, target Cortex-A8 devices.
54	binutilsConfigureArgs="--disable-multilib --with-float=hard
55		--with-cpu=cortex-a8 --with-fpu=vfpv3"
56	gccConfigureArgs="--disable-multilib --with-float=hard
57		--with-cpu=cortex-a8 --with-fpu=vfpv3"
58
59	# TODO: Disable building with TLS support for ARM until implemented.
60	binutilsConfigureArgs="$binutilsConfigureArgs --disable-tls"
61	gccConfigureArgs="$gccConfigureArgs --disable-tls"
62	gdbConfigureArgs="--disable-multilib --disable-werror -enable-interwork"
63	gdbTarget="arm-unknown-elf"
64	;;
65riscv*-*)
66	binutilsConfigureArgs=" --with-arch=rv64gc"
67	gccConfigureArgs=" --with-arch=rv64gc"
68	gdbConfigureArgs=""
69
70	binutilsConfigureArgs="$binutilsConfigureArgs --disable-multilib"
71	gccConfigureArgs="$gccConfigureArgs --disable-multilib"
72	gdbConfigureArgs="$gdbConfigureArgs --disable-multilib"
73	;;
74powerpc-*)
75	binutilsConfigureArgs="--disable-multilib"
76	gccConfigureArgs="--disable-multilib"
77	binutilsTargets="$binutilsTargets,powerpc-apple-linux,powerpc-apple-freebsd,powerpc-apple-vxworks"
78	gdbConfigureArgs="--disable-multilib --disable-werror"
79	gdbTarget="powerpc-unknown-elf"
80
81	# TODO: Disable building with TLS support for PPC until implemented.
82	binutilsConfigureArgs="$binutilsConfigureArgs --disable-tls"
83	gccConfigureArgs="$gccConfigureArgs --disable-tls"
84	;;
85*)
86	binutilsConfigureArgs="--disable-multilib"
87	gccConfigureArgs="--disable-multilib"
88	gdbConfigureArgs="--disable-multilib"
89	;;
90esac
91
92if [ `uname -s` = 'Haiku' ]; then
93	# force cross-build if building on Haiku:
94	buildhostMachine=${haikuMachine}_buildhost
95	buildHostSpec="--build=$buildhostMachine --host=$buildhostMachine"
96fi
97
98if [ ! -d "$haikuSourceDir" ]; then
99	echo "No such directory: \"$haikuSourceDir\"" >&2
100	exit 1
101fi
102
103if [ ! -d "$buildToolsDir" ]; then
104	echo "No such directory: \"$buildToolsDir\"" >&2
105	exit 1
106fi
107
108if [ -n "$gdbSourceDir" -a ! -d "$gdbSourceDir" ]; then
109	echo "No such directory: \"$gdbSourceDir\"" >&2
110	exit 1
111fi
112
113
114# create the output dir
115mkdir -p "$installDir" || exit 1
116
117
118# get absolute paths
119currentDir=$(pwd)
120
121cd "$haikuSourceDir"
122haikuSourceDir=$(pwd)
123cd "$currentDir"
124
125cd "$buildToolsDir"
126buildToolsDir=$(pwd)
127cd "$currentDir"
128
129cd "$installDir"
130installDir=$(pwd)
131cd "$currentDir"
132
133if [ -n "$gdbSourceDir" ]; then
134cd "$gdbSourceDir"
135gdbSourceDir=$(pwd)
136cd "$currentDir"
137fi
138
139binutilsSourceDir="$buildToolsDir/binutils"
140gccSourceDir="$buildToolsDir/gcc"
141
142
143# get gcc version
144gccVersion=$(cat "$gccSourceDir/gcc/BASE-VER")
145
146if [ -z "$gccVersion" ]; then
147	echo "Failed to find out gcc version." >&2
148	exit 1
149fi
150
151# clear out the "missing" scripts so that they don't cause errors on tools
152# that are not installed, as we will have committed any files generated by
153# them to the buildtools repo already.
154echo "#!/bin/sh" >"$binutilsSourceDir"/missing
155echo "#!/bin/sh" >"$gccSourceDir"/missing
156echo "#!/bin/sh" >"$gccSourceDir"/isl/missing
157
158# create the object and installation directories for the cross compilation tools
159objDir="${installDir}-build"
160binutilsObjDir="$objDir/binutils"
161gccObjDir="$objDir/gcc"
162gdbObjDir="$objDir/gdb"
163stdcxxObjDir="$objDir/stdcxx"
164sysrootDir=${HAIKU_USE_SYSROOT:-"$installDir/sysroot"}
165tmpIncludeDir="$sysrootDir/boot/system/develop/headers"
166tmpLibDir="$sysrootDir/boot/system/develop/lib"
167
168rm -rf "$installDir" "$objDir"
169
170mkdir -p "$installDir" "$objDir" "$binutilsObjDir" "$gccObjDir" "$gdbObjDir" \
171	"$stdcxxObjDir" "$tmpIncludeDir" "$tmpLibDir" || exit 1
172mkdir -p "$installDir/lib/gcc/$haikuMachine/$gccVersion"
173
174if [ "$HAIKU_USE_GCC_PIPE" = 1 ]; then
175	ccFlags="$ccFlags -pipe"
176	cxxFlags="$cxxFlags -pipe"
177fi
178
179if [ -n "$SECONDARY_ARCH" ]; then
180	gccConfigureArgs="$gccConfigureArgs --with-hybrid-secondary=$SECONDARY_ARCH"
181fi
182
183# force the POSIX locale, as the build (makeinfo) might choke otherwise
184export LC_ALL=POSIX
185
186# build gdb
187if [ -n "$HAIKU_USE_GDB" ]; then
188cd "$gdbObjDir"
189	"$gdbSourceDir/configure" \
190		--prefix="$installDir" --target=$gdbTarget \
191		$gdbConfigureArgs \
192		|| exit 1
193	$MAKE $additionalMakeArgs || exit 1
194	$MAKE $additionalMakeArgs install || exit 1
195fi
196
197# build binutils
198cd "$binutilsObjDir"
199CFLAGS="$ccFlags" CXXFLAGS="$cxxFlags" "$binutilsSourceDir/configure" \
200	--prefix="$installDir" $buildHostSpec --target=$haikuMachine \
201	--enable-targets=$binutilsTargets \
202	--disable-nls --disable-shared --disable-werror \
203	--with-sysroot="$sysrootDir" \
204	--disable-maintainer-mode \
205	$binutilsConfigureArgs \
206	|| exit 1
207$MAKE $additionalMakeArgs || exit 1
208$MAKE $additionalMakeArgs install || exit 1
209
210export PATH="$PATH:$installDir/bin"
211
212# build gcc
213
214# prepare the include files
215copy_headers()
216{
217	sourceDir=$1
218	targetDir=$2
219
220	headers="$(find $sourceDir -name \*\.h)"
221	headers="$(echo $headers | sed -e s@$sourceDir/@@g)"
222	for f in $headers; do
223		headerTargetDir="$targetDir/$(dirname $f)"
224		mkdir -p "$headerTargetDir"
225		cp "$sourceDir/$f" "$headerTargetDir"
226	done
227}
228
229copy_headers "$haikuSourceDir/headers/config" "$tmpIncludeDir/config"
230copy_headers "$haikuSourceDir/headers/os" "$tmpIncludeDir/os"
231copy_headers "$haikuSourceDir/headers/posix" "$tmpIncludeDir/posix"
232
233# configure gcc
234cd "$gccObjDir"
235CFLAGS="$ccFlags" CXXFLAGS="$cxxFlags" "$gccSourceDir/configure" \
236	--prefix="$installDir" $buildHostSpec --target=$haikuMachine \
237	--disable-nls --disable-shared --with-system-zlib \
238	--enable-languages=c,c++ --enable-lto --enable-frame-pointer \
239	--enable-__cxa-atexit --enable-threads=posix \
240	--with-default-libstdcxx-abi=gcc4-compatible \
241	--with-sysroot="$sysrootDir" \
242	--disable-maintainer-mode \
243	--disable-libgomp \
244	--disable-libatomic \
245	$gccConfigureArgs \
246	|| exit 1
247
248# make gcc
249$MAKE $additionalMakeArgs || {
250	echo "ERROR: Building gcc failed." >&2
251	exit 1
252}
253
254# install gcc
255$MAKE $additionalMakeArgs install || {
256	echo "ERROR: Installing the cross compiler failed." >&2
257	exit 1
258}
259
260case $haikuMachine in
261x86_64-*)
262	# pick up the 32-bit libraries for the bootloader
263	bootLibgcc=`$installDir/bin/$haikuMachine-gcc -m32 -print-file-name=libgcc.a`
264	$installDir/bin/$haikuMachine-strip --strip-debug $bootLibgcc
265	bootLibsupcxx=`$installDir/bin/$haikuMachine-gcc -m32 -print-file-name=libsupc++.a`
266	$installDir/bin/$haikuMachine-strip --strip-debug $bootLibsupcxx
267	;;
268esac
269
270# cleanup
271
272# remove the system headers from the installation dir
273# Only the ones from the source tree should be used.
274rm -rf "$installDir/$haikuMachine/sys-include"
275
276# rename the static libstdc++ to prevent accidental usage
277# (it should be used by the bootstrap process only)
278mv "$installDir/$haikuMachine/lib/libstdc++.a" \
279	"$installDir/$haikuMachine/lib/libstdc++-static.a"
280
281# remove the sysroot dir
282if [ -n "$HAIKU_USE_SYSROOT" ]; then
283	rm -rf "$sysrootDir"/boot/system/*
284else
285	rm -rf "$sysrootDir"
286fi
287
288# remove the objects dir
289rm -rf "$objDir"
290
291
292echo "binutils and gcc for cross compilation have been built successfully!"
293