3 # Builder of custom stages (cross compilers, GNU/Linux distributions)
5 # Copyright (c) 2014-2020 Matias Fonzo, <selk@dragora.org>.
7 # Licensed under the Apache License, Version 2.0 (the "License");
8 # you may not use this file except in compliance with the License.
9 # You may obtain a copy of the License at
11 # http://www.apache.org/licenses/LICENSE-2.0
13 # Unless required by applicable law or agreed to in writing, software
14 # distributed under the License is distributed on an "AS IS" BASIS,
15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 # See the License for the specific language governing permissions and
17 # limitations under the License.
20 # 0 = Successful completion
21 # 1 = Minor common errors (e.g: help usage, support not available)
22 # 2 = Command execution error
23 # 3 = Integrity check error for compressed files
27 # Override locale settings
30 export LC_ALL LANGUAGE
32 # Get current working directory (absolute path)
33 CWD
="$(CDPATH= cd -- $(dirname -- "$0") && pwd)"
39 "Builder of custom stages (cross compilers, GNU/Linux distributions)" \
41 "Usage: $PROGRAM [OPTION]... [FILE]..." \
43 "Defaults for the options are specified in brackets." \
46 " -h display this help and exit" \
47 " -V print version information and exit" \
48 " -a target architecture [${arch}]" \
49 " -j parallel jobs for the compiler [${jobs}]" \
50 " -k keep (don't delete) source directory" \
51 " -o output directory [${output}]" \
52 " -s stage number to build [${stage}]" \
54 "Some influential environment variables:" \
55 " TMPDIR temporary directory for sources [${TMPDIR}]" \
56 " BTCC C compiler command [${BTCC}]" \
57 " BTCXX C++ compiler command [${BTCXX}]" \
58 " BTCFLAGS C compiler flags [${BTCFLAGS}]" \
59 " BTCXXFLAGS C++ compiler flags [${BTCXXFLAGS}]" \
60 " BTLDFLAGS linker flags [${BTLDFLAGS}]" \
61 " VENDOR vendor name to reflect on the target triplet" \
63 "Supported architectures (targets):"
64 for name
in "${CWD}/targets"/*
66 printf "%s" "${name##*/} "
76 "Copyright (C) 2014-2020 Matias Andres Fonzo." \
77 "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>" \
78 "This is free software: you are free to change and redistribute it." \
79 "There is NO WARRANTY, to the extent permitted by law."
93 echo "Return status = $status" 1>&2
94 exit ${1-2}; # If not given, defaults to 2
100 # Function to test and extract compressed files
107 tar tf
"$file" > /dev
/null
&& \
111 *.
tar.gz |
*.tgz |
*.
tar.Z
)
112 gzip -cd "$file" |
tar tf
- > /dev
/null
&& \
113 gzip -cd "$file" |
tar xpf
-
116 *.
tar.bz2 |
*.tbz2 |
*.tbz
)
117 bzip2 -cd "$file" |
tar tf
- > /dev
/null
&& \
118 bzip2 -cd "$file" |
tar xpf
-
122 lzip
-cd "$file" |
tar tf
- > /dev
/null
&& \
123 lzip
-cd "$file" |
tar xpf
-
127 xz
-cd "$file" |
tar tf
- > /dev
/null
&& \
128 xz
-cd "$file" |
tar xpf
-
132 unzip -t "$file" > /dev
/null
&& \
133 unzip "$file" > /dev
/null
138 gzip -cd "$file" > "$(basename -- $file .gz)"
143 gzip -cd "$file" > "$(basename -- $file .Z)"
147 bzip2 -t "$file" && \
148 bzip2 -cd "$file" > "$(basename -- $file .bz2)"
153 lzip
-cd "$file" > "$(basename -- $file .lz)"
158 xz
-cd "$file" > "$(basename -- $file .xz)"
162 warn
"${PROGRAM}: cannot unpack ${file}: Unsupported extension"
169 # Print a warning for good practices.
171 # Recommended practices is to set variables in
172 # **front** of `configure' or make(1), see:
174 # http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Defining-Variables.html
175 # http://www.gnu.org/savannah-checkouts/gnu/autoconf/manual/autoconf-2.69/html_node/Setting-Output-Variables.html
176 # http://www.gnu.org/software/make/manual/make.html#Environment
180 warn
"WARNING: Environment variable '$1' is set." \
181 "This will be unset to avoid possible risks." \
188 BTCXX
="${BTCXX:=c++}"
189 BTCFLAGS
="${BTCFLAGS:=-g0 -Os}"
190 BTCXXFLAGS
="${BTCXXFLAGS:=$BTCFLAGS}"
191 BTLDFLAGS
="${BTLDFLAGS:=-s}"
192 opt_keep
=opt_keep.off
195 arch
="$(uname -m)" || chkstatus_or_exit
198 output
=${worktree}/OUTPUT.
${PROGRAM}
199 TMPDIR
="${TMPDIR:=${output}/sources}"
201 # Compose vendor name adding "-" as suffix
202 test -n "$VENDOR" && VENDOR
="${VENDOR}-"
206 while getopts :ha
:j
:ko
:s
:V name
233 warn
"Option '-${OPTARG}' requires an argument"
238 warn
"Illegal option -- '-${OPTARG}'"
244 shift $
(( OPTIND
- 1 ))
246 # Check for environment variables, print warning, unset in any case
248 test "${CC:+CC_defined}" = CC_defined
&& warn_flags CC
249 test "${CXX:+CXX_defined}" = CXX_defined
&& warn_flags CXX
250 test "${CFLAGS:+CFLAGS_defined}" = CFLAGS_defined
&& warn_flags CFLAGS
251 test "${CXXFLAGS:+CXXFLAGS_defined}" = CXXFLAGS_defined
&& warn_flags CXXFLAGS
252 test "${LDFLAGS:+LDFLAGS_defined}" = LDFLAGS_defined
&& warn_flags LDFLAGS
253 unset CC CXX CFLAGS CXXFLAGS LDFLAGS warn_flags
255 # Load target architecture-file
257 if test -f "${worktree}/targets/$arch"
259 echo "${PROGRAM}: Loading target $arch ..."
260 .
"${worktree}/targets/$arch"
263 "${PROGRAM}: Target name not recognized -- '${arch}'" \
264 "See '$0 -h' for more information"
268 # Determine the host to use.
270 # Set up the host if a C compiler command was exported,
271 # otherwise, a local `cc' will be used instead
275 host="$(${BTCC} -dumpmachine)" || chkstatus_or_exit
277 host="$(cc -dumpmachine)" || chkstatus_or_exit
280 # If the host and the target are the same triplet, it won't work.
281 # We are changing the host if it is really needed
283 if test "$host" = "$target"
285 # Rename VENDOR to 'cross'. If empty, 'cross-linux' is added
286 case "${host%-*-*}" in
288 host="$(echo "$host" | sed -e 's/-[^-]*/-cross/')"
291 host="$(echo "$host" | sed -e 's/-[^-]*/-cross-linux/')"
296 # Compose variables for the physical output,
297 # printing some useful information
299 crossdir
=${output}/cross
/${target}
300 rootdir
=${output}/stage
${stage}
305 "BTCFLAGS: $BTCFLAGS" \
306 "BTCXXFLAGS: $BTCXXFLAGS" \
307 "BTLDFLAGS: $BTLDFLAGS" \
310 "Output directory: $output" \
311 "Cross directory: $crossdir" \
312 "Root directory: $rootdir"
314 # Remove write permission for group and other
317 # Create required directories
318 mkdir
-p -- "$output" "$TMPDIR"
321 # Set default PATH, propagate variables
322 PATH
="${crossdir}/bin:${PATH}"
324 export PATH VENDOR TMPDIR
327 for file in "${CWD}/stages/${stage}"/${@:-??-*}
331 if test ! -f "${CWD}/stages
/${stage}/$file"
333 warn "${PROGRAM}: ${stage}/${file}: No such
file or stage number
"
336 if test ! -x "${CWD}/stages
/${stage}/$file"
338 warn "${PROGRAM}: ${stage}/${file}: File not executable
, dodging
"
342 #### Stage pre-settings
344 # Create sysroot directory, recreating the symlink for the stage 0
348 mkdir -p -- "${crossdir}/$target" || chkstatus_or_exit
350 if test ! -e "${crossdir}/${target}/usr
"
352 ln -sf . "${crossdir}/${target}/usr
" || chkstatus_or_exit
355 # Ensure toolchain sanity for multilib purposes
357 aarch64* | arm* | i586 | *x32 | x86_64 | riscv* )
358 if test ! -e "${crossdir}/lib
" && test -n "$libSuffix"
360 ln -sf lib${libSuffix} "${crossdir}/lib
" || chkstatus_or_exit
366 # Create "tools
" directory, recreating the symlink for the stage 1
369 if test ! -d "${rootdir}/tools
"
371 mkdir -p -- "${rootdir}/tools
" || chkstatus_or_exit
374 # Make required symlink
375 ln -sf "${rootdir}/tools
" / || chkstatus_or_exit
378 echo "${PROGRAM}: Processing
$file from stage
$stage ...
"
380 # Set trap before to run the script in order to
381 # catch the return status, exit code 2 if fails
383 trap 'chkstatus_or_exit 2' EXIT HUP INT QUIT ABRT TERM
385 # Exit immediately on any error
388 . "${CWD}/stages
/${stage}/$file"
390 # Deactivate shell option(s)
393 # Reset given signals
394 trap - EXIT HUP INT QUIT ABRT TERM
396 # Delete declared directories on the cleanup() function
397 if test "$opt_keep" != opt_keep
399 if type cleanup 1> /dev/null 2> /dev/null
407 # Back to the current working directory
408 cd -- "$CWD" || chkstatus_or_exit