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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
commit | 46651ce6fe013220ed397add242004d764fc0153 (patch) | |
tree | 6e5299f990f88e60174a1d3ae6e48eedd2688b2b /src/tools/pginclude/pgrminclude | |
parent | Initial commit. (diff) | |
download | postgresql-14-upstream.tar.xz postgresql-14-upstream.zip |
Adding upstream version 14.5.upstream/14.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/pginclude/pgrminclude')
-rwxr-xr-x | src/tools/pginclude/pgrminclude | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/tools/pginclude/pgrminclude b/src/tools/pginclude/pgrminclude new file mode 100755 index 0000000..7cbd2e7 --- /dev/null +++ b/src/tools/pginclude/pgrminclude @@ -0,0 +1,149 @@ +: +# 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 + # suppress 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 |