mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-05 10:09:30 +00:00
228 lines
6.8 KiB
Bash
Executable File
228 lines
6.8 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
# Fix up yacc output to allow dynamic allocation. Since perly.c
|
|
# is now provided with the perl source, this should not be necessary.
|
|
#
|
|
# However, if the user wishes to use byacc, or wishes to try another
|
|
# compiler compiler (e.g. bison or yacc), this script will get run.
|
|
# See makefile run_byacc target for more details.
|
|
#
|
|
# Currently, only byacc version 1.8 is fully supported.
|
|
#
|
|
# Hacks to make it work with Interactive's SysVr3 Version 2.2
|
|
# doughera@lafvax.lafayette.edu (Andy Dougherty) 3/23/91
|
|
#
|
|
# Additional information to make the BSD section work with SunOS 4.0.2
|
|
# tdinger@East.Sun.COM (Tom Dinger) 4/15/1991
|
|
|
|
input=$1
|
|
output=$2
|
|
tmp=/tmp/f$$
|
|
|
|
if grep 'yaccpar 1.8 (Berkeley)' $input >/dev/null 2>&1; then
|
|
cp $input $output
|
|
# Don't expect the diff to do everything -- do some by hand
|
|
if test -f perly_c.diff; then
|
|
patch -F3 $output <perly_c.diff
|
|
sed -e '/^[ ]*printf("yydebug:/s/printf(/PerlIO_printf(Perl_debug_log, /' \
|
|
-e '/^#line /s/"y[.]tab[.]c"/"perly.c"/' \
|
|
-e '/\[\] *= *[{]/s/^/static /' \
|
|
-e '/^static static/s/^static //' \
|
|
-e '/^#define.WORD/,/^#define.ARROW/d' \
|
|
-e '/^int.yydebug/,/^#define.yystacksize/d' \
|
|
< $output > $tmp && mv -f $tmp $output || exit 1
|
|
rm -rf $input
|
|
echo "If you need to debug perly.c, you need to fix up the #line"
|
|
echo "directives yourself."
|
|
fi
|
|
exit
|
|
elif grep 'yaccpar 1.9 (Berkeley)' $input >/dev/null 2>&1; then
|
|
if test -f perly.c.dif9; then
|
|
patch -F3 $output <perly.c.dif9
|
|
sed -e '/^[ ]*printf("yydebug:/s/printf(/PerlIO_printf(Perl_debug_log, /' \
|
|
-e '/^#line /s/"y[.]tab[.]c"/"perly.c"/' \
|
|
-e '/\[\] *= *[{]/s/^/static /' \
|
|
-e '/^static static/s/^static //' \
|
|
-e '/^#define.WORD/,/^#define.ARROW/d' \
|
|
-e '/^int.yydebug/,/^#define.yystacksize/d' \
|
|
< $output > $tmp && mv -f $tmp $output || exit 1
|
|
rm -rf $input
|
|
echo "If you need to debug perly.c, you need to fix up the #line"
|
|
echo "directives yourself."
|
|
exit 0
|
|
else
|
|
echo "Diffs from byacc-1.9 are not available."
|
|
echo "If you wish to proceed anyway, do"
|
|
echo "cp $input $output"
|
|
echo "cp y.tab.h perly.h"
|
|
echo "and re-run make. Otherwise, I will use the old perly.c"
|
|
touch perly.c
|
|
# Exit with error status to stop make.
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
plan="unknown"
|
|
|
|
echo ""
|
|
echo "Warning: the yacc you have used is not directly supported by perl."
|
|
echo "The perly.fixer script will attempt to make some changes to the generated"
|
|
echo "file. The changes may be incomplete and that might lead to problems later"
|
|
echo "(especially with complex scripts). You may need to apply the changes"
|
|
echo "embedded in perl.fixer (and/or perly_c.dif*) by hand."
|
|
echo ""
|
|
|
|
# Below, we check for various characteristic yaccpar outputs.
|
|
|
|
# Test for BSD 4.3 version.
|
|
# Also tests for the SunOS 4.0.2 version
|
|
egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];
|
|
short[ ]*yys\[ *YYMAXDEPTH *\] *;
|
|
yyps *= *&yys\[ *-1 *\];
|
|
yypv *= *&yyv\[ *-1 *\];
|
|
if *\( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp 2>/dev/null
|
|
|
|
set `wc -l $tmp`
|
|
if test "$1" = "5"; then
|
|
plan="bsd43"
|
|
fi
|
|
|
|
if test "$plan" = "unknown"; then
|
|
# Test for ISC 2.2 version (probably generic SysVr3).
|
|
egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];
|
|
int[ ]*yys\[ *YYMAXDEPTH *\] *;
|
|
yyps *= *&yys\[ *-1 *\];
|
|
yypv *= *&yyv\[ *-1 *\];
|
|
if *\( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp 2>/dev/null
|
|
|
|
set `wc -l $tmp`
|
|
if test "$1" = "5"; then
|
|
plan="isc"
|
|
fi
|
|
fi
|
|
|
|
# ------
|
|
|
|
case "$plan" in
|
|
##################################################################
|
|
# The SunOS 4.0.2 version has the comparison fixed already.
|
|
# Also added are out of memory checks (makes porting the generated
|
|
# code easier) For most systems, it can't hurt. -- TD
|
|
"bsd43")
|
|
echo "Attempting to patch perly.c to allow dynamic yacc stack allocation"
|
|
echo "Assuming bsd4.3 yaccpar"
|
|
cat >$tmp <<'END'
|
|
/YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\
|
|
int yymaxdepth = YYMAXDEPTH;\
|
|
YYSTYPE *yyv; /* where the values are stored */\
|
|
short *yys;\
|
|
short *maxyyps;
|
|
|
|
/short[ ]*yys\[ *YYMAXDEPTH *\] *;/d
|
|
|
|
/yyps *= *&yys\[ *-1 *\];/d
|
|
|
|
/yypv *= *&yyv\[ *-1 *\];/c\
|
|
\ if (!yyv) {\
|
|
\ New(73, yyv, yymaxdepth, YYSTYPE);\
|
|
\ New(73, yys, yymaxdepth, short);\
|
|
\ if ( !yyv || !yys ) {\
|
|
\ yyerror( "out of memory" );\
|
|
\ return(1);\
|
|
\ }\
|
|
\ maxyyps = &yys[yymaxdepth];\
|
|
\ }\
|
|
\ yyps = &yys[-1];\
|
|
\ yypv = &yyv[-1];
|
|
|
|
|
|
/if *( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *)/c\
|
|
\ if( ++yyps >= maxyyps ) {\
|
|
\ int tv = yypv - yyv;\
|
|
\ int ts = yyps - yys;\
|
|
\
|
|
\ yymaxdepth *= 2;\
|
|
\ Renew(yyv, yymaxdepth, YYSTYPE);\
|
|
\ Renew(yys, yymaxdepth, short);\
|
|
\ if ( !yyv || !yys ) {\
|
|
\ yyerror( "yacc stack overflow" );\
|
|
\ return(1);\
|
|
\ }\
|
|
\ yyps = yys + ts;\
|
|
\ yypv = yyv + tv;\
|
|
\ maxyyps = &yys[yymaxdepth];\
|
|
\ }
|
|
|
|
/yacc stack overflow.*}/d
|
|
/yacc stack overflow/,/}/d
|
|
END
|
|
if sed -f $tmp <$input >$output
|
|
then echo "The edit seems to have been applied okay."
|
|
else echo "The edit seems to have failed!"
|
|
fi
|
|
;;
|
|
|
|
#######################################################
|
|
"isc") # Interactive Systems 2.2 version
|
|
echo "Attempting to patch perly.c to allow dynamic yacc stack allocation"
|
|
echo "Assuming Interactive SysVr3 2.2 yaccpar"
|
|
# Easier to simply put whole script here than to modify the
|
|
# bsd script with sed.
|
|
# Main changes: yaccpar sometimes uses yy_ps and yy_pv
|
|
# which are local register variables.
|
|
# if(++yyps > YYMAXDEPTH) had opening brace on next line.
|
|
# I've kept that brace in along with a call to yyerror if
|
|
# realloc fails. (Actually, I just don't know how to do
|
|
# multi-line matches in sed.)
|
|
cat > $tmp << 'END'
|
|
/YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\
|
|
int yymaxdepth = YYMAXDEPTH;\
|
|
YYSTYPE *yyv; /* where the values are stored */\
|
|
int *yys;\
|
|
int *maxyyps;
|
|
|
|
/int[ ]*yys\[ *YYMAXDEPTH *\] *;/d
|
|
|
|
/yyps *= *&yys\[ *-1 *\];/d
|
|
|
|
/yypv *= *&yyv\[ *-1 *\];/c\
|
|
\ if (!yyv) {\
|
|
\ New(73, yyv, yymaxdepth, YYSTYPE);\
|
|
\ New(73, yys, yymaxdepth, int);\
|
|
\ maxyyps = &yys[yymaxdepth];\
|
|
\ }\
|
|
\ yyps = &yys[-1];\
|
|
\ yypv = &yyv[-1];
|
|
|
|
/if *( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *)/c\
|
|
\ if( ++yy_ps >= maxyyps ) {\
|
|
\ int tv = yy_pv - yyv;\
|
|
\ int ts = yy_ps - yys;\
|
|
\
|
|
\ yymaxdepth *= 2;\
|
|
\ Renew(yyv, yymaxdepth, YYSTYPE);\
|
|
\ Renew(yys, yymaxdepth, int);\
|
|
\ yy_ps = yyps = yys + ts;\
|
|
\ yy_pv = yypv = yyv + tv;\
|
|
\ maxyyps = &yys[yymaxdepth];\
|
|
\ }\
|
|
\ if (yyv == NULL || yys == NULL)
|
|
END
|
|
if sed -f $tmp < $input > $output
|
|
then echo "The edit seems to have been applied okay."
|
|
else echo "The edit seems to have failed!"
|
|
fi
|
|
;;
|
|
|
|
######################################################
|
|
# Plan still unknown
|
|
*)
|
|
echo "Unable to patch perly.c to allow dynamic yacc stack allocation (plan=$plan)"
|
|
# just do minimal change to write $output from $input
|
|
sed -e 's/Received token/ *** Received token/' $input >$output
|
|
;;
|
|
esac
|
|
|
|
echo ""
|
|
rm -rf $tmp $input
|