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Diffstat (limited to 'src/backend/utils/Gen_fmgrtab.sh')
| -rw-r--r-- | src/backend/utils/Gen_fmgrtab.sh | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/src/backend/utils/Gen_fmgrtab.sh b/src/backend/utils/Gen_fmgrtab.sh new file mode 100644 index 00000000000..12b36264262 --- /dev/null +++ b/src/backend/utils/Gen_fmgrtab.sh @@ -0,0 +1,267 @@ +#! /bin/sh +#------------------------------------------------------------------------- +# +# Gen_fmgrtab.sh +# shell script to generate fmgroids.h and fmgrtab.c from pg_proc.h +# +# Portions Copyright (c) 1996-2000, PostgreSQL, Inc +# Portions Copyright (c) 1994, Regents of the University of California +# +# +# IDENTIFICATION +# $Header: /cvsroot/pgsql/src/backend/utils/Attic/Gen_fmgrtab.sh,v 1.15 2000/07/01 21:16:44 petere Exp $ +# +#------------------------------------------------------------------------- + +CMDNAME=`basename $0` + +: ${AWK='awk'} +: ${CPP='cc -E'} + +cleanup(){ + [ x"$noclean" != x"t" ] && rm -f "$CPPTMPFILE" "$RAWFILE" +} + +BKIOPTS= +noclean= + +# +# Process command line switches. +# +while [ $# -gt 0 ] +do + case $1 in + -D) + BKIOPTS="$BKIOPTS -D$2" + ;; + -D*) + BKIOPTS="$BKIOPTS $1" + shift;; + --noclean) + noclean=t + ;; + --help) + echo "$CMDNAME generates fmgroids.h and fmgrtab.c from pg_proc.h." + echo + echo "Usage:" + echo " $CMDNAME [ -D define [...] ]" + echo + echo "The environment variables CPP and AWK determine which C" + echo "preprocessor and Awk program to use. The defaults are" + echo "\`cc -E' and \`awk'." + echo + echo "Report bugs to <pgsql-bugs@postgresql.org>." + exit 0 + ;; + --) shift; break;; + -*) + echo "$CMDNAME: invalid option: $1" + exit 1 + ;; + *) + INFILE=$1 + esac + shift +done + + +if [ x"$INFILE" = x ] ; then + echo "$CMDNAME: no input file" + exit 1 +fi + +CPPTMPFILE=fmgrtmp.c +RAWFILE=fmgr.raw +OIDSFILE=fmgroids.h +TABLEFILE=fmgrtab.c + + +trap 'echo "Caught signal." ; cleanup ; exit 1' 1 2 3 15 + + +# +# Generate the file containing raw pg_proc tuple data +# (but only for "internal" and "newinternal" language procedures...). +# +# Unlike genbki.sh, which can run through cpp last, we have to +# deal with preprocessor statements first (before we sort the +# function table by oid). +# +$AWK ' +BEGIN { raw = 0; } +/^DATA/ { print; next; } +/^BKI_BEGIN/ { raw = 1; next; } +/^BKI_END/ { raw = 0; next; } +raw == 1 { print; next; }' $INFILE | \ +sed -e 's/^.*OID[^=]*=[^0-9]*//' \ + -e 's/(//g' \ + -e 's/[ ]*).*$//' | \ +$AWK ' +/^#/ { print; next; } +$4 == "11" { print; next; } +$4 == "12" { print; next; }' > $CPPTMPFILE + +if [ $? -ne 0 ]; then + cleanup + echo "$CMDNAME failed" + exit 1 +fi + +$CPP $BKIOPTS $CPPTMPFILE | \ +egrep '^[0-9]' | \ +sort -n > $RAWFILE + +if [ $? -ne 0 ]; then + cleanup + echo "$CMDNAME failed" + exit 1 +fi + + +cpp_define=`echo $OIDSFILE | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | sed -e 's/[^A-Z]/_/g'` + +# +# Generate fmgroids.h +# +cat > "$OIDSFILE" <<FuNkYfMgRsTuFf +/*------------------------------------------------------------------------- + * + * $OIDSFILE + * Macros that define the OIDs of built-in functions. + * + * These macros can be used to avoid a catalog lookup when a specific + * fmgr-callable function needs to be referenced. + * + * Portions Copyright (c) 1996-2000, PostgreSQL, Inc + * Portions Copyright (c) 1994, Regents of the University of California + * + * NOTES + * ****************************** + * *** DO NOT EDIT THIS FILE! *** + * ****************************** + * + * It has been GENERATED by $CMDNAME + * from $INFILE + * + *------------------------------------------------------------------------- + */ +#ifndef $cpp_define +#define $cpp_define + +/* + * Constant macros for the OIDs of entries in pg_proc. + * + * NOTE: macros are named after the prosrc value, ie the actual C name + * of the implementing function, not the proname which may be overloaded. + * For example, we want to be able to assign different macro names to both + * char_text() and int4_text() even though these both appear with proname + * 'text'. If the same C function appears in more than one pg_proc entry, + * its equivalent macro will be defined with the lowest OID among those + * entries. + */ +FuNkYfMgRsTuFf + +tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' < $RAWFILE | \ +$AWK ' +BEGIN { OFS = ""; } + { if (seenit[$(NF-1)]++ == 0) print "#define F_", $(NF-1), " ", $1; }' >> "$OIDSFILE" + +if [ $? -ne 0 ]; then + cleanup + echo "$CMDNAME failed" + exit 1 +fi + +cat >> "$OIDSFILE" <<FuNkYfMgRsTuFf + +#endif /* $cpp_define */ +FuNkYfMgRsTuFf + +# +# Generate fmgr's built-in-function table. +# +# Print out the function declarations, then the table that refers to them. +# NB: the function declarations are bogus in the case of old-style functions, +# although they should be correct for new-style. Therefore we need to compile +# this table definition as a separate C file that won't need to include any +# "real" declarations for those functions! +# +cat > "$TABLEFILE" <<FuNkYfMgRtAbStUfF +/*------------------------------------------------------------------------- + * + * $TABLEFILE + * The function manager's table of internal functions. + * + * Portions Copyright (c) 1996-2000, PostgreSQL, Inc + * Portions Copyright (c) 1994, Regents of the University of California + * + * NOTES + * + * ****************************** + * *** DO NOT EDIT THIS FILE! *** + * ****************************** + * + * It has been GENERATED by $CMDNAME + * from $INFILE + * + * We lie here to cc about the return type and arguments of old-style + * builtin functions; all ld cares about is the fact that it + * will need to resolve an external function reference. + * + *------------------------------------------------------------------------- + */ + +#include "postgres.h" + +#include "utils/fmgrtab.h" + +FuNkYfMgRtAbStUfF + +$AWK '{ print "extern Datum", $(NF-1), "(PG_FUNCTION_ARGS);"; }' $RAWFILE >> "$TABLEFILE" + +if [ $? -ne 0 ]; then + cleanup + echo "$CMDNAME failed" + exit 1 +fi + + +cat >> "$TABLEFILE" <<FuNkYfMgRtAbStUfF + +const FmgrBuiltin fmgr_builtins[] = { +FuNkYfMgRtAbStUfF + +# Note: using awk arrays to translate from pg_proc values to fmgrtab values +# may seem tedious, but avoid the temptation to write a quick x?y:z +# conditional expression instead. Not all awks have conditional expressions. + +$AWK 'BEGIN { + Strict["t"] = "true" + Strict["f"] = "false" + OldStyle["11"] = "true" + OldStyle["12"] = "false" +} +{ printf (" { %d, \"%s\", %d, %s, %s, %s },\n"), \ + $1, $(NF-1), $9, Strict[$8], OldStyle[$4], $(NF-1) +}' $RAWFILE >> "$TABLEFILE" + +if [ $? -ne 0 ]; then + cleanup + echo "$CMDNAME failed" + exit 1 +fi + +cat >> "$TABLEFILE" <<FuNkYfMgRtAbStUfF + /* dummy entry is easier than getting rid of comma after last real one */ + /* (not that there has ever been anything wrong with *having* a + comma after the last field in an array initializer) */ + { 0, NULL, 0, false, false, (PGFunction) NULL } +}; + +/* Note fmgr_nbuiltins excludes the dummy entry */ +const int fmgr_nbuiltins = (sizeof(fmgr_builtins) / sizeof(FmgrBuiltin)) - 1; + +FuNkYfMgRtAbStUfF + +cleanup +exit 0 |