forked from OSchip/llvm-project
116 lines
2.9 KiB
Bash
Executable File
116 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
print_usage () {
|
|
echo 'Usage: diag-build.sh [-v] xcodebuild [flags]'
|
|
echo ' diag-build.sh [-v] make [flags]'
|
|
echo ' diag-build.sh [-v] <other build command>'
|
|
echo
|
|
echo 'diagtool must be in your PATH'
|
|
echo 'If using an alternate build command, you must ensure that'
|
|
echo 'the compiler used matches the CC environment variable.'
|
|
}
|
|
|
|
# Mac OS X's BSD sed uses -E for extended regular expressions,
|
|
# but GNU sed uses -r. Find out which one this system accepts.
|
|
EXTENDED_SED_FLAG='-E'
|
|
echo -n | sed $EXTENDED_SED_FLAG 's/a/b/' 2>/dev/null || EXTENDED_SED_FLAG='-r'
|
|
|
|
if [[ "$1" == "-v" ]]; then
|
|
verbose=$1
|
|
shift
|
|
fi
|
|
|
|
guessing_cc=0
|
|
|
|
if [[ -z "$CC" ]]; then
|
|
guessing_cc=1
|
|
if [[ -x $(dirname $0)/clang ]]; then
|
|
CC=$(dirname $0)/clang
|
|
elif [[ ! -z $(which clang) ]]; then
|
|
CC=$(which clang)
|
|
else
|
|
echo -n 'Error: could not find an appropriate compiler'
|
|
echo ' to generate build commands.' 1>&2
|
|
echo 'Use the CC environment variable to set one explicitly.' 1>&2
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
if [[ -z "$CXX" ]]; then
|
|
if [[ -x $(dirname $0)/clang++ ]]; then
|
|
CXX=$(dirname $0)/clang++
|
|
elif [[ ! -z $(which clang++) ]]; then
|
|
CXX=$(which clang++)
|
|
else
|
|
CXX=$CC
|
|
fi
|
|
fi
|
|
|
|
diagtool=$(which diagtool)
|
|
if [[ -z "$diagtool" ]]; then
|
|
if [[ -x $(dirname $0)/diagtool ]]; then
|
|
diagtool=$(dirname $0)/diagtool
|
|
else
|
|
echo 'Error: could not find diagtool.' 1>&2
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
|
|
tool=$1
|
|
shift
|
|
|
|
if [[ -z "$tool" ]]; then
|
|
print_usage
|
|
exit 1
|
|
elif [[ "$tool" == "xcodebuild" ]]; then
|
|
dry_run='-dry-run'
|
|
set_compiler="CC='$CC' CXX='$CXX'"
|
|
elif [[ "$tool" == "make" ]]; then
|
|
dry_run='-n'
|
|
set_compiler="CC='$CC' CXX='$CXX'"
|
|
else
|
|
echo "Warning: unknown build system '$tool'" 1>&2
|
|
if [[ $guessing_cc -eq 1 ]]; then
|
|
# FIXME: We really only need $CC /or/ $CXX
|
|
echo 'Error: $CC must be set for other build systems' 1>&2
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
escape () {
|
|
echo $@ | sed 's:[]:\\|/.+*?^$(){}[]:\\&:g'
|
|
}
|
|
|
|
escCC=$(escape $CC)
|
|
escCXX=$(escape $CXX)
|
|
command=$(
|
|
eval $tool $dry_run $set_compiler $@ 2>/dev/null |
|
|
# Remove "if" early on so we can find the right command line.
|
|
sed $EXTENDED_SED_FLAG "s:^[[:blank:]]*if[[:blank:]]{1,}::g" |
|
|
# Combine lines with trailing backslashes
|
|
sed -e :a -e '/\\$/N; s/\\\n//; ta' |
|
|
grep -E "^[[:blank:]]*($escCC|$escCXX)" |
|
|
head -n1 |
|
|
sed $EXTENDED_SED_FLAG "s:($escCC|$escCXX):${diagtool//:/\\:} show-enabled:g"
|
|
)
|
|
|
|
if [[ -z "$command" ]]; then
|
|
echo 'Error: could not find any build commands.' 1>&2
|
|
if [[ "$tool" != "xcodebuild" ]]; then
|
|
# xcodebuild always echoes the compile commands on their own line,
|
|
# but other tools give no such guarantees.
|
|
echo -n 'This may occur if your build system embeds the call to ' 2>&1
|
|
echo -n 'the compiler in a larger expression. ' 2>&1
|
|
fi
|
|
exit 2
|
|
fi
|
|
|
|
# Chop off trailing '&&', '||', and ';'
|
|
command=${command%%&&*}
|
|
command=${command%%||*}
|
|
command=${command%%;*}
|
|
|
|
[[ -n "$verbose" ]] && echo $command
|
|
eval $command
|