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|
:
# remove extra #include's
# pgcompinclude must be run before and after pgrminclude. It must be
# run before because we don't want include dependencies to leak into
# the C program files, and after because removal of includes from headers
# can cause new include unfulfilled dependencies.
#
# Limitations: 2011-09-24
#
# Pgrminclude, when processing header files, can cause includes to be
# removed that require the addition of new illogical header files.
# This is dependent on what order the header files are processed.
# Manual review of header files now needed to satisfy pgcompinclude is
# required.
#
# C program files that have #ifdef blocks that contain code that cannot
# be compiled on the platform from which pgrminclude is run cannot be
# processed, and are skipped.
: ${CC:=cc}
: ${PGSRC:=src}
if ! pgdefine
then echo "pgdefine must be in your PATH" 1>&2
exit 1
fi
trap "rm -f /tmp/$$.c /tmp/$$.o /tmp/$$ /tmp/$$a /tmp/$$b" 0 1 2 3 15
if [ "$1" = "-v" ]
then VERBOSE="Y"
else VERBOSE=""
fi
verbose_output() {
if [ "$VERBOSE" ]
then cat /tmp/$$
cat /tmp/$$b
nl /tmp/$$.c
fi
}
process_includes_in_file() {
# loop through all includes mentioned in the file
cat "$FILE" |
grep "^#include\>" |
grep -v '/\* *pgrminclude *ignore *\*/' |
sed 's/^#include[ ]*[<"]\([^>"]*\).*$/\1/g' |
grep -v 'parser/kwlist\.h' |
grep -v '\.c$' |
while read INCLUDE
do if [ "$VERBOSE" ]
then echo "checking $FILE $INCLUDE"
fi
compile_file
done
}
compile_file() {
[ "$INCLUDE" -a -s /usr/include/"$INCLUDE" ] && continue
[ "$INCLUDE" = "postgres.h" ] && continue
[ "$INCLUDE" = "postgres_fe.h" ] && continue
[ "$INCLUDE" = "pg_config.h" ] && continue
[ "$INCLUDE" = "c.h" ] && continue
# Stringify macros will expand undefined identifiers, so skip files that use it
egrep -q '\<(CppAsString2?|CppConcat)\>' "$FILE" && continue
# preserve configure-specific includes
# these includes are surrounded by #ifdef's
grep -B1 '^#include[ ][ ]*[<"]'"$INCLUDE"'[>"]' "$FILE" |
egrep -q '^#if|^#else|^#elif' && continue
grep -A1 '^#include[ ][ ]*[<"]'"$INCLUDE"'[>"]' "$FILE" |
egrep -q '^#else|^#elif|^#endif' && continue
# Remove all #if and #ifdef blocks because the blocks
# might contain code that is not compiled on this platform.
cat "$FILE" |
grep -v "^#if" |
grep -v "^#else" |
grep -v "^#elif" |
grep -v "^#endif" |
# with #if blocks gone, now undef #defines to avoid redefine
# warning and failure
sed 's/#define[ ][ ]*\([A-Za-z0-9_]*\).*$/#undef \1\n&/' >/tmp/$$a
# set up initial file contents
grep -v '^#include[ ][ ]*[<"]'"$INCLUDE"'[>"]' \
/tmp/$$a >/tmp/$$b
if [ "$IS_INCLUDE" = "Y" ]
then echo "#include \"postgres.h\"" >/tmp/$$.c
# supress fcinfo errors
echo "struct {Datum arg[1];} *fcinfo;" >>/tmp/$$.c
else >/tmp/$$.c
fi
echo "#include \"/tmp/$$b\"" >>/tmp/$$.c
if [ "$IS_INCLUDE" = "Y" ]
then echo "Datum include_test(void);" >>/tmp/$$.c
echo "Datum include_test() {" >>/tmp/$$.c
pgdefine "$FILE" >>/tmp/$$.c
echo "return (Datum)0;" >>/tmp/$$.c
echo "}" >>/tmp/$$.c
fi
# Use -O1 to get warnings only generated by optimization,
# but -O2 is too slow.
$CC -fsyntax-only -Werror -Wall -Wmissing-prototypes \
-Wmissing-declarations -I$PGSRC/include -I$PGSRC/backend \
-I$PGSRC/interfaces/libpq -I`dirname $FILE` $CFLAGS -O1 -c /tmp/$$.c \
-o /tmp/$$.o >/tmp/$$ 2>&1
if [ "$?" -eq 0 ]
then [ "$INCLUDE" -o "$VERBOSE" ] && echo "$FILE $INCLUDE"
grep -v '^#include[ ][ ]*[<"]'"$INCLUDE"'[>"]' \
"$FILE" >/tmp/$$b
mv /tmp/$$b "$FILE"
return 0
else return 1
fi
}
# Process include files first because they can affect the compilation
# of *.c files.
(find . \( -name .git -a -prune \) -o -type f -name '*.h' -print | sort;
find . \( -name .git -a -prune \) -o -type f -name '*.c' -print | sort) |
grep -v '/postgres.h$' |
grep -v '/postgres_fe.h$' |
grep -v '/pg_config.h$' |
grep -v '\./c.h$' |
while read FILE
do
if [ `expr $FILE : '.*\.h$'` -ne 0 ]
then IS_INCLUDE="Y"
else IS_INCLUDE="N"
fi
# Can we compile the file with all existing includes?
INCLUDE=""
compile_file
# If the file can't be compiled on its own, there is no sense
# trying to remove the include files.
if [ "$?" -ne 0 ]
then echo "cannot compile $FILE with existing includes"
verbose_output
else process_includes_in_file
fi
done
|
