257e0d8e82cade034e6771120ea31709460a3b2c
[openwrt-10.03/.git] / scripts / ext-toolchain.sh
1 #!/usr/bin/env bash
2 #
3 #   Script for various external toolchain tasks, refer to
4 #   the --help output for more information.
5 #
6 #   Copyright (C) 2012 Jo-Philipp Wich <jow@openwrt.org>
7 #
8 #   This program is free software; you can redistribute it and/or modify
9 #   it under the terms of the GNU General Public License as published by
10 #   the Free Software Foundation; either version 2 of the License, or
11 #   (at your option) any later version.
12 #
13 #   This program is distributed in the hope that it will be useful,
14 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 #   GNU General Public License for more details.
17 #
18 #   You should have received a copy of the GNU General Public License
19 #   along with this program; if not, write to the Free Software
20 #   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
21
22 CC=""
23 CXX=""
24 CPP=""
25
26 CFLAGS=""
27 TOOLCHAIN="."
28
29 LIBC_TYPE=""
30
31
32 # Library specs
33 LIB_SPECS="
34         c:        ld-* lib{anl,c,cidn,crypt,dl,m,nsl,nss_dns,nss_files,resolv,util}
35         rt:       librt-* librt
36         pthread:  libpthread-* libpthread
37         stdcpp:   libstdc++
38         gcc:      libgcc_s
39         ssp:      libssp
40         gfortran: libgfortran
41 "
42
43 # Binary specs
44 BIN_SPECS="
45         ldd:       ldd
46         ldconfig:  ldconfig
47         gdb:       gdb
48         gdbserver: gdbserver
49 "
50
51
52 test_c() {
53         cat <<-EOT | "${CC:-false}" $CFLAGS -o /dev/null -x c - 2>/dev/null
54                 #include <stdio.h>
55
56                 int main(int argc, char **argv)
57                 {
58                         printf("Hello, world!\n");
59                         return 0;
60                 }
61         EOT
62 }
63
64 test_cxx() {
65         cat <<-EOT | "${CXX:-false}" $CFLAGS -o /dev/null -x c++ - 2>/dev/null
66                 #include <iostream>
67
68                 using namespace std;
69
70                 int main()
71                 {
72                         cout << "Hello, world!" << endl;
73                         return 0;
74                 }
75         EOT
76 }
77
78 test_softfloat() {
79         cat <<-EOT | "$CC" $CFLAGS -msoft-float -o /dev/null -x c - 2>/dev/null
80                 int main(int argc, char **argv)
81                 {
82                         double a = 0.1;
83                         double b = 0.2;
84                         double c = (a + b) / (a * b);
85                         return 1;
86                 }
87         EOT
88 }
89
90 test_uclibc() {
91         local sysroot="$("$CC" $CFLAGS -print-sysroot 2>/dev/null)"
92         if [ -d "${sysroot:-$TOOLCHAIN}" ]; then
93                 local lib
94                 for lib in "${sysroot:-$TOOLCHAIN}"/{lib,usr/lib,usr/local/lib}/ld-uClibc*.so*; do
95                         if [ -f "$lib" ] && [ ! -h "$lib" ]; then
96                                 return 0
97                         fi
98                 done
99         fi
100         return 1
101 }
102
103 test_feature() {
104         local feature="$1"; shift
105
106         # find compilers, libc type
107         probe_cc
108         probe_cxx
109         probe_libc
110
111         # common toolchain feature tests
112         case "$feature" in
113                 c)     test_c;         return $? ;;
114                 c++)   test_cxx;       return $? ;;
115                 soft*) test_softfloat; return $? ;;
116         esac
117
118         # assume eglibc/glibc supports all libc features
119         if [ "$LIBC_TYPE" != "uclibc" ]; then
120                 return 0
121         fi
122
123         # uclibc feature tests
124         local inc
125         local sysroot="$("$CC" "$@" -muclibc -print-sysroot 2>/dev/null)"
126         for inc in "include" "usr/include" "usr/local/include"; do
127                 local conf="${sysroot:-$TOOLCHAIN}/$inc/bits/uClibc_config.h"
128                 if [ -f "$conf" ]; then
129                         case "$feature" in
130                                 lfs)     grep -q '__UCLIBC_HAS_LFS__ 1'     "$conf"; return $?;;
131                                 ipv6)    grep -q '__UCLIBC_HAS_IPV6__ 1'    "$conf"; return $?;;
132                                 rpc)     grep -q '__UCLIBC_HAS_RPC__ 1'     "$conf"; return $?;;
133                                 locale)  grep -q '__UCLIBC_HAS_LOCALE__ 1'  "$conf"; return $?;;
134                                 wchar)   grep -q '__UCLIBC_HAS_WCHAR__ 1'   "$conf"; return $?;;
135                                 threads) grep -q '__UCLIBC_HAS_THREADS__ 1' "$conf"; return $?;;
136                         esac
137                 fi
138         done
139
140         return 1
141 }
142
143
144 find_libs() {
145         local spec="$(echo "$LIB_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
146
147         if [ -n "$spec" ] && probe_cpp; then
148                 local libdir libdirs
149                 for libdir in $(
150                         "$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
151                                 sed -ne 's#:# #g; s#^LIBRARY_PATH=##p'
152                 ); do
153                         if [ -d "$libdir" ]; then
154                                 libdirs="$libdirs $(cd "$libdir"; pwd)/"
155                         fi
156                 done
157
158                 local pattern
159                 for pattern in $(eval echo $spec); do
160                         find $libdirs -name "$pattern.so*" | sort -u
161                 done
162
163                 return 0
164         fi
165
166         return 1
167 }
168
169 find_bins() {
170         local spec="$(echo "$BIN_SPECS" | sed -ne "s#^[[:space:]]*$1:##ip")"
171
172         if [ -n "$spec" ] && probe_cpp; then
173                 local sysroot="$("$CPP" -print-sysroot)"
174
175                 local bindir bindirs
176                 for bindir in $(
177                         echo "${sysroot:-$TOOLCHAIN}/bin";
178                         echo "${sysroot:-$TOOLCHAIN}/usr/bin";
179                         echo "${sysroot:-$TOOLCHAIN}/usr/local/bin";
180                         "$CPP" $CFLAGS -v -x c /dev/null 2>&1 | \
181                                 sed -ne 's#:# #g; s#^COMPILER_PATH=##p'
182                 ); do
183                         if [ -d "$bindir" ]; then
184                                 bindirs="$bindirs $(cd "$bindir"; pwd)/"
185                         fi
186                 done
187
188                 local pattern
189                 for pattern in $(eval echo $spec); do
190                         find $bindirs -name "$pattern" | sort -u
191                 done
192
193                 return 0
194         fi
195
196         return 1
197 }
198
199
200 wrap_bins() {
201         if probe_cc; then
202                 mkdir -p "$1" || return 1
203
204                 local cmd
205                 for cmd in "${CC%-*}-"*; do
206                         if [ -x "$cmd" ]; then
207                                 local out="$1/${cmd##*/}"
208
209                                 echo '#!/bin/sh' > "$out"
210                                 case "${cmd##*/}" in
211                                         *-*cc|*-*cc-*|*-*++|*-*++-*|*-cpp)
212                                                 echo -n 'exec "'"$cmd"'" '"$CFLAGS"' '         >> "$out"
213                                                 echo -n '${STAGING_DIR:+-idirafter '           >> "$out"
214                                                 echo -n '"$STAGING_DIR/usr/include" '          >> "$out"
215                                                 echo -n '-L "$STAGING_DIR/usr/lib" '           >> "$out"
216                                                 echo -n '-Wl,-rpath-link,'                     >> "$out"
217                                                 echo    '"$STAGING_DIR/usr/lib"} "$@"'         >> "$out"
218                                         ;;
219                                         *-ld)
220                                                 echo -n 'exec "'"$cmd"'" ${STAGING_DIR:+'      >> "$out"
221                                                 echo -n '-L "$STAGING_DIR/usr/lib" '           >> "$out"
222                                                 echo -n '-rpath-link '                         >> "$out"
223                                                 echo    '"$STAGING_DIR/usr/lib"} "$@"'         >> "$out"
224                                         ;;
225                                         *)
226                                                 echo "exec '$cmd' \"\$@\"" >> "$out"
227                                         ;;
228                                 esac
229                                 chmod +x "$out"
230                         fi
231                 done
232
233                 return 0
234         fi
235
236         return 1
237 }
238
239
240 print_config() {
241         local mktarget="$1"
242         local mksubtarget
243
244         local target="$("$CC" $CFLAGS -dumpmachine)"
245         local cpuarch="${target%%-*}"
246         local prefix="${CC##*/}"; prefix="${prefix%-*}-"
247         local config="${0%/scripts/*}/.config"
248
249         # if no target specified, print choice list and exit
250         if [ -z "$mktarget" ]; then
251                 # prepare metadata
252                 if [ ! -f "${0%/scripts/*}/tmp/.targetinfo" ]; then
253                         "${0%/*}/scripts/config/mconf" prepare-tmpinfo
254                 fi
255
256                 local mktargets=$(
257                         sed -ne "
258                                 /^Target: / { h };
259                                 /^Target-Arch: $cpuarch\$/ { x; s#^Target: ##p }
260                         " "${0%/scripts/*}/tmp/.targetinfo" | sort -u
261                 )
262
263                 for mktarget in $mktargets; do
264                         case "$mktarget" in */*)
265                                 mktargets=$(echo "$mktargets" | sed -e "/^${mktarget%/*}\$/d")
266                         esac
267                 done
268
269                 if [ -n "$mktargets" ]; then
270                         echo "Available targets:"                               >&2
271                         echo $mktargets                                         >&2
272                 else
273                         echo -e "Could not find a suitable OpenWrt target for " >&2
274                         echo -e "CPU architecture '$cpuarch' - you need to "    >&2
275                         echo -e "define one first!"                             >&2
276                 fi
277                 return 1
278         fi
279
280         # bail out if there is a .config already
281         if [ -f "${0%/scripts/*}/.config" ]; then
282                 echo "There already is a .config file, refusing to overwrite!" >&2
283                 return 1
284         fi
285
286         case "$mktarget" in */*)
287                 mksubtarget="${mktarget#*/}"
288                 mktarget="${mktarget%/*}"
289         ;; esac
290
291
292         echo "CONFIG_TARGET_${mktarget}=y" > "$config"
293
294         if [ -n "$mksubtarget" ]; then
295                 echo "CONFIG_TARGET_${mktarget}_${mksubtarget}=y" >> "$config"
296         fi
297
298         if test_feature "softfloat"; then
299                 echo "CONFIG_SOFT_FLOAT=y" >> "$config"
300         else
301                 echo "# CONFIG_SOFT_FLOAT is not set" >> "$config"
302         fi
303
304         if test_feature "ipv6"; then
305                 echo "CONFIG_IPV6=y" >> "$config"
306         else
307                 echo "# CONFIG_IPV6 is not set" >> "$config"
308         fi
309
310         if test_feature "locale"; then
311                 echo "CONFIG_BUILD_NLS=y" >> "$config"
312         else
313                 echo "# CONFIG_BUILD_NLS is not set" >> "$config"
314         fi
315
316         echo "CONFIG_DEVEL=y" >> "$config"
317         echo "CONFIG_EXTERNAL_TOOLCHAIN=y" >> "$config"
318         echo "CONFIG_TOOLCHAIN_ROOT=\"$TOOLCHAIN\"" >> "$config"
319         echo "CONFIG_TOOLCHAIN_PREFIX=\"$prefix\"" >> "$config"
320         echo "CONFIG_TARGET_NAME=\"$target\"" >> "$config"
321
322         local lib
323         for lib in C RT PTHREAD GCC STDCPP SSP GFORTRAN; do
324                 local file
325                 local spec=""
326                 local llib="$(echo "$lib" | sed -e 's#.*#\L&#')"
327                 for file in $(find_libs "$lib"); do
328                         spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
329                 done
330                 if [ -n "$spec" ]; then
331                         echo "CONFIG_PACKAGE_lib${llib}=y" >> "$config"
332                         echo "CONFIG_LIB${lib}_FILE_SPEC=\"$spec\"" >> "$config"
333                 else
334                         echo "# CONFIG_PACKAGE_lib${llib} is not set" >> "$config"
335                 fi
336         done
337
338         local bin
339         for bin in LDD LDCONFIG; do
340                 local file
341                 local spec=""
342                 local lbin="$(echo "$bin" | sed -e 's#.*#\L&#')"
343                 for file in $(find_bins "$bin"); do
344                         spec="${spec:+$spec }$(echo "$file" | sed -e "s#^$TOOLCHAIN#.#")"
345                 done
346                 if [ -n "$spec" ]; then
347                         echo "CONFIG_PACKAGE_${lbin}=y" >> "$config"
348                         echo "CONFIG_${bin}_FILE_SPEC=\"$spec\"" >> "$config"
349                 else
350                         echo "# CONFIG_PACKAGE_${lbin} is not set" >> "$config"
351                 fi
352         done
353
354         # inflate
355         make -C "${0%/scripts/*}" defconfig
356         return 0
357 }
358
359
360 probe_cc() {
361         if [ -z "$CC" ]; then
362                 local bin
363                 for bin in "bin" "usr/bin" "usr/local/bin"; do
364                         local cmd
365                         for cmd in "$TOOLCHAIN/$bin/"*-*cc*; do
366                                 if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
367                                         CC="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
368                                         return 0
369                                 fi
370                         done
371                 done
372                 return 1
373         fi
374         return 0
375 }
376
377 probe_cxx() {
378         if [ -z "$CXX" ]; then
379                 local bin
380                 for bin in "bin" "usr/bin" "usr/local/bin"; do
381                         local cmd
382                         for cmd in "$TOOLCHAIN/$bin/"*-*++*; do
383                                 if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
384                                         CXX="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
385                                         return 0
386                                 fi
387                         done
388                 done
389                 return 1
390         fi
391         return 0
392 }
393
394 probe_cpp() {
395         if [ -z "$CPP" ]; then
396                 local bin
397                 for bin in "bin" "usr/bin" "usr/local/bin"; do
398                         local cmd
399                         for cmd in "$TOOLCHAIN/$bin/"*-cpp*; do
400                                 if [ -x "$cmd" ] && [ ! -h "$cmd" ]; then
401                                         CPP="$(cd "${cmd%/*}"; pwd)/${cmd##*/}"
402                                         return 0
403                                 fi
404                         done
405                 done
406                 return 1
407         fi
408         return 0
409 }
410
411 probe_libc() {
412         if [ -z "$LIBC_TYPE" ]; then
413                 if test_uclibc; then
414                         LIBC_TYPE="uclibc"
415                 else
416                         LIBC_TYPE="glibc"
417                 fi
418         fi
419         return 0
420 }
421
422
423 while [ -n "$1" ]; do
424         arg="$1"; shift
425         case "$arg" in
426                 --toolchain)
427                         [ -d "$1" ] || {
428                                 echo "Toolchain directory '$1' does not exist." >&2
429                                 exit 1
430                         }
431                         TOOLCHAIN="$(cd "$1"; pwd)"; shift
432                 ;;
433
434                 --cflags)
435                         CFLAGS="${CFLAGS:+$CFLAGS }$1"; shift
436                 ;;
437
438                 --print-libc)
439                         if probe_cc; then
440                                 probe_libc
441                                 echo "$LIBC_TYPE"
442                                 exit 0
443                         fi
444                         echo "No C compiler found in '$TOOLCHAIN'." >&2
445                         exit 1
446                 ;;
447
448                 --print-target)
449                         if probe_cc; then
450                                 exec "$CC" $CFLAGS -dumpmachine
451                         fi
452                         echo "No C compiler found in '$TOOLCHAIN'." >&2
453                         exit 1
454                 ;;
455
456                 --print-bin)
457                         if [ -z "$1" ]; then
458                                 echo "Available programs:"                      >&2
459                                 echo $(echo "$BIN_SPECS" | sed -ne 's#:.*$##p') >&2
460                                 exit 1
461                         fi
462
463                         find_bins "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-bin
464                         exit 0
465                 ;;
466
467                 --print-libs)
468                         if [ -z "$1" ]; then
469                                 echo "Available libraries:"                     >&2
470                                 echo $(echo "$LIB_SPECS" | sed -ne 's#:.*$##p') >&2
471                                 exit 1
472                         fi
473
474                         find_libs "$1" || exec "$0" --toolchain "$TOOLCHAIN" --print-libs
475                         exit 0
476                 ;;
477
478                 --test)
479                         test_feature "$1"
480                         exit $?
481                 ;;
482
483                 --wrap)
484                         [ -n "$1" ] || exec "$0" --help
485                         wrap_bins "$1"
486                         exit $?
487                 ;;
488
489                 --config)
490                         if probe_cc; then
491                                 print_config "$1"
492                                 exit $?
493                         fi
494                         echo "No C compiler found in '$TOOLCHAIN'." >&2
495                         exit 1
496                 ;;
497
498                 -h|--help)
499                         me="$(basename "$0")"
500                         echo -e "\nUsage:\n"                                            >&2
501                         echo -e "  $me --toolchain {directory} --print-libc"            >&2
502                         echo -e "    Print the libc implementation and exit.\n"         >&2
503                         echo -e "  $me --toolchain {directory} --print-target"          >&2
504                         echo -e "    Print the GNU target name and exit.\n"             >&2
505                         echo -e "  $me --toolchain {directory} --print-bin {program}"   >&2
506                         echo -e "    Print executables belonging to given program,"     >&2
507                         echo -e "    omit program argument to get a list of names.\n"   >&2
508                         echo -e "  $me --toolchain {directory} --print-libs {library}"  >&2
509                         echo -e "    Print shared objects belonging to given library,"  >&2
510                         echo -e "    omit library argument to get a list of names.\n"   >&2
511                         echo -e "  $me --toolchain {directory} --test {feature}"        >&2
512                         echo -e "    Test given feature, exit code indicates success."  >&2
513                         echo -e "    Possible features are 'c', 'c++', 'softfloat',"    >&2
514                         echo -e "    'lfs', 'rpc', 'ipv6', 'wchar', 'locale' and "      >&2
515                         echo -e "    'threads'.\n"                                      >&2
516                         echo -e "  $me --toolchain {directory} --wrap {directory}"      >&2
517                         echo -e "    Create wrapper scripts for C and C++ compiler, "   >&2
518                         echo -e "    linker, assembler and other key executables in "   >&2
519                         echo -e "    the directory given with --wrap.\n"                >&2
520                         echo -e "  $me --toolchain {directory} --config {target}"       >&2
521                         echo -e "    Analyze the given toolchain and print a suitable"  >&2
522                         echo -e "    .config for the given target. Omit target "        >&2
523                         echo -e "    argument to get a list of names.\n"                >&2
524                         echo -e "  $me --help"                                          >&2
525                         echo -e "    Display this help text and exit.\n\n"              >&2
526                         echo -e "  Most commands also take a --cflags parameter which " >&2
527                         echo -e "  is used to specify C flags to be passed to the "     >&2
528                         echo -e "  cross compiler when performing tests."               >&2
529                         echo -e "  This paremter may be repeated multiple times."       >&2
530                         exit 1
531                 ;;
532
533                 *)
534                         echo "Unknown argument '$arg'" >&2
535                         exec $0 --help
536                 ;;
537         esac
538 done
539
540 exec $0 --help