274 lines
7.0 KiB
Bash
274 lines
7.0 KiB
Bash
#! /bin/sh
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#-------------------------------------------------------------------------
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#
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# Gen_fmgrtab.sh
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# shell script to generate fmgroids.h and fmgrtab.c from pg_proc.h
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#
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# Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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#
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# IDENTIFICATION
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# $Header: /cvsroot/pgsql/src/backend/utils/Attic/Gen_fmgrtab.sh,v 1.17 2000/07/13 16:07:06 petere Exp $
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#
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#-------------------------------------------------------------------------
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CMDNAME=`basename $0`
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: ${AWK='awk'}
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: ${CPP='cc -E'}
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cleanup(){
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[ x"$noclean" != x"t" ] && rm -f "$CPPTMPFILE" "$RAWFILE" "$$-$OIDSFILE" "$$-$TABLEFILE"
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}
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BKIOPTS=
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noclean=
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#
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# Process command line switches.
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#
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while [ $# -gt 0 ]
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do
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case $1 in
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-D)
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BKIOPTS="$BKIOPTS -D$2"
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shift;;
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-D*)
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BKIOPTS="$BKIOPTS $1"
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;;
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--noclean)
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noclean=t
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;;
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--help)
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echo "$CMDNAME generates fmgroids.h and fmgrtab.c from pg_proc.h."
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echo
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echo "Usage:"
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echo " $CMDNAME [ -D define [...] ]"
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echo
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echo "The environment variables CPP and AWK determine which C"
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echo "preprocessor and Awk program to use. The defaults are"
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echo "\`cc -E' and \`awk'."
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echo
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echo "Report bugs to <pgsql-bugs@postgresql.org>."
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exit 0
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;;
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--) shift; break;;
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-*)
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echo "$CMDNAME: invalid option: $1"
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exit 1
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;;
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*)
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INFILE=$1
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;;
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esac
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shift
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done
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if [ x"$INFILE" = x ] ; then
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echo "$CMDNAME: no input file"
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exit 1
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fi
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CPPTMPFILE="$$-fmgrtmp.c"
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RAWFILE="$$-fmgr.raw"
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OIDSFILE=fmgroids.h
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TABLEFILE=fmgrtab.c
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trap 'echo "Caught signal." ; cleanup ; exit 1' 1 2 15
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#
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# Generate the file containing raw pg_proc tuple data
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# (but only for "internal" and "newinternal" language procedures...).
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#
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# Unlike genbki.sh, which can run through cpp last, we have to
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# deal with preprocessor statements first (before we sort the
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# function table by oid).
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#
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$AWK '
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BEGIN { raw = 0; }
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/^DATA/ { print; next; }
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/^BKI_BEGIN/ { raw = 1; next; }
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/^BKI_END/ { raw = 0; next; }
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raw == 1 { print; next; }' $INFILE | \
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sed -e 's/^.*OID[^=]*=[^0-9]*//' \
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-e 's/(//g' \
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-e 's/[ ]*).*$//' | \
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$AWK '
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/^#/ { print; next; }
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$4 == "11" { print; next; }
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$4 == "12" { print; next; }' > $CPPTMPFILE
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if [ $? -ne 0 ]; then
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cleanup
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echo "$CMDNAME failed"
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exit 1
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fi
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$CPP $BKIOPTS $CPPTMPFILE | \
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egrep '^[0-9]' | \
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sort -n > $RAWFILE
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if [ $? -ne 0 ]; then
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cleanup
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echo "$CMDNAME failed"
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exit 1
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fi
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cpp_define=`echo $OIDSFILE | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | sed -e 's/[^A-Z]/_/g'`
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#
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# Generate fmgroids.h
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#
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cat > "$$-$OIDSFILE" <<FuNkYfMgRsTuFf
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/*-------------------------------------------------------------------------
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*
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* $OIDSFILE
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* Macros that define the OIDs of built-in functions.
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*
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* These macros can be used to avoid a catalog lookup when a specific
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* fmgr-callable function needs to be referenced.
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* NOTES
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* ******************************
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* *** DO NOT EDIT THIS FILE! ***
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* ******************************
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*
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* It has been GENERATED by $CMDNAME
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* from $INFILE
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef $cpp_define
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#define $cpp_define
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/*
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* Constant macros for the OIDs of entries in pg_proc.
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*
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* NOTE: macros are named after the prosrc value, ie the actual C name
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* of the implementing function, not the proname which may be overloaded.
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* For example, we want to be able to assign different macro names to both
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* char_text() and int4_text() even though these both appear with proname
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* 'text'. If the same C function appears in more than one pg_proc entry,
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* its equivalent macro will be defined with the lowest OID among those
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* entries.
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*/
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FuNkYfMgRsTuFf
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tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' < $RAWFILE | \
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$AWK '
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BEGIN { OFS = ""; }
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{ if (seenit[$(NF-1)]++ == 0) print "#define F_", $(NF-1), " ", $1; }' >> "$$-$OIDSFILE"
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if [ $? -ne 0 ]; then
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cleanup
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echo "$CMDNAME failed"
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exit 1
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fi
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cat >> "$$-$OIDSFILE" <<FuNkYfMgRsTuFf
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#endif /* $cpp_define */
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FuNkYfMgRsTuFf
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#
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# Generate fmgr's built-in-function table.
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#
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# Print out the function declarations, then the table that refers to them.
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# NB: the function declarations are bogus in the case of old-style functions,
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# although they should be correct for new-style. Therefore we need to compile
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# this table definition as a separate C file that won't need to include any
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# "real" declarations for those functions!
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#
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cat > "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
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/*-------------------------------------------------------------------------
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*
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* $TABLEFILE
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* The function manager's table of internal functions.
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*
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* NOTES
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*
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* ******************************
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* *** DO NOT EDIT THIS FILE! ***
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* ******************************
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*
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* It has been GENERATED by $CMDNAME
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* from $INFILE
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*
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* We lie here to cc about the return type and arguments of old-style
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* builtin functions; all ld cares about is the fact that it
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* will need to resolve an external function reference.
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "utils/fmgrtab.h"
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FuNkYfMgRtAbStUfF
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$AWK '{ print "extern Datum", $(NF-1), "(PG_FUNCTION_ARGS);"; }' $RAWFILE >> "$$-$TABLEFILE"
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if [ $? -ne 0 ]; then
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cleanup
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echo "$CMDNAME failed"
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exit 1
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fi
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cat >> "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
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const FmgrBuiltin fmgr_builtins[] = {
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FuNkYfMgRtAbStUfF
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# Note: using awk arrays to translate from pg_proc values to fmgrtab values
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# may seem tedious, but avoid the temptation to write a quick x?y:z
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# conditional expression instead. Not all awks have conditional expressions.
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$AWK 'BEGIN {
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Strict["t"] = "true"
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Strict["f"] = "false"
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OldStyle["11"] = "true"
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OldStyle["12"] = "false"
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}
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{ printf (" { %d, \"%s\", %d, %s, %s, %s },\n"), \
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$1, $(NF-1), $9, Strict[$8], OldStyle[$4], $(NF-1)
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}' $RAWFILE >> "$$-$TABLEFILE"
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if [ $? -ne 0 ]; then
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cleanup
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echo "$CMDNAME failed"
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exit 1
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fi
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cat >> "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
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/* dummy entry is easier than getting rid of comma after last real one */
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/* (not that there has ever been anything wrong with *having* a
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comma after the last field in an array initializer) */
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{ 0, NULL, 0, false, false, (PGFunction) NULL }
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};
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/* Note fmgr_nbuiltins excludes the dummy entry */
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const int fmgr_nbuiltins = (sizeof(fmgr_builtins) / sizeof(FmgrBuiltin)) - 1;
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FuNkYfMgRtAbStUfF
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# We use the temporary files to avoid problems with concurrent runs
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# (which can happen during parallel make).
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mv "$$-$OIDSFILE" $OIDSFILE
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mv "$$-$TABLEFILE" $TABLEFILE
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cleanup
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exit 0
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