#!/bin/sh
#
-# Written: Nov 1994 Wayne Scott (wscott@ichips.intel.com)
+# Written: Nov 1994 Wayne Scott <wscott@ichips.intel.com>
+#
+# Updated: 1997-8 Jarkko Hietaniemi <jhi@iki.fi>
#
# Create the export list for perl.
# Needed by AIX to do dynamic linking.
#
-# This simple program relys on 'global.sym' being up to date
-# with all of the global symbols that a dynamicly link library
-# might want to access.
+# This simple program relies on 'global.sym' and few other *.sym files
+# and the *var*.h files being up to date with all of the global
+# symbols that a dynamic link library might want to access.
#
-# Most symbols have a Perl_ prefix because that's what embed.h sticks
-# in front of them. Variations depend on binary compatibility with
-# Perl 5.003.
+# Most symbols have a Perl_ or PL_prefix because that's what embed.h
+# sticks in front of them.
#
+# AIX requires the list of external symbols (variables or functions)
+# that are made available for another executable object file the import.
+# The list is called the export file and it is a simple text file.
+# The first line must be
+#!
+# That is, hash-bang, pound-shout, however you want to call it.
+# The remainder of the file are the names of the symbols, one per line.
+# The file is then given to the system loader (cc/xlc command line)
+# as -bE:export.file.
case $CONFIG in
'')
rm -f perl.exp
echo "#!" > perl.exp
-case "$bincompat3" in
-y*)
- (
- global=/tmp/exp$$g
- interp=/tmp/exp$$i
- compat3=/tmp/exp$$c
- trap 'rm -f $global $interp $compat3' 0
- trap 'exit 1' 1 2 3 13 15
- grep '^[A-Za-z]' global.sym | sort >$global
- grep '^[A-Za-z]' interp.sym | sort >$interp
- grep '^[A-Za-z]' compat3.sym | sort >$compat3
- comm -23 $global $compat3 | sed 's/^/Perl_/' >> perl.exp
- comm -12 $interp $compat3 | sed 's/^/Perl_/' >> perl.exp
- comm -12 $global $compat3 >> perl.exp
- comm -23 $interp $compat3 >> perl.exp
- )
- ;;
-*)
- sed -n '/^[A-Za-z]/ s/^/Perl_/p' global.sym interp.sym >> perl.exp
- ;;
-esac
+# No compat3 since 5.004_50.
+# No interp.sym since 5.005_03.
+# perlio.sym will added later if needed.
+
+syms="global.sym thread.sym"
+
+sed -n '/^[A-Za-z]/ s/^/Perl_/p' $syms >> perl.exp
+
+sed -n 's/^PERLVAR.*(G\([^[,]*\).*/PL_\1/p' perlvars.h >> perl.exp
+sed -n 's/^PERLVAR.*(I\([^[,]*\).*/PL_\1/p' intrpvar.h >> perl.exp
+sed -n 's/^PERLVAR.*(T\([^[,]*\).*/PL_\1/p' thrdvar.h >> perl.exp
+
+#
+# If we use the PerlIO abstraction layer, add its symbols.
+#
+
+if [ "X$useperlio" = "Xdefine" ]
+then
+ grep '^[A-Za-z]' perlio.sym >> perl.exp
+fi
#
# Extra globals not included above (including a few that might
# not actually be defined, but there's no harm in that).
#
-cat <<END >> perl.exp
+cat >>perl.exp <<END
perl_init_i18nl10n
perl_init_i18nl14n
perl_new_collate
perl_call_pv
perl_call_method
perl_call_sv
-perl_requirepv
+perl_eval_pv
+perl_eval_sv
+perl_require_pv
+cast_i32
+cast_iv
+cast_uv
+END
+
+case "$ccflags" in
+*-DHIDEMYMALLOC*)
+ cat >>perl.exp <<END
Mymalloc
Mycalloc
Myremalloc
Myfree
+END
+ ;;
+esac
+
+case "$ccflags" in
+*-DEMBEDMYMALLOC*)
+ cat >>perl.exp <<END
Perl_malloc
Perl_calloc
Perl_realloc
Perl_free
END
+ ;;
+esac
+
+# The shebang line nicely sorts as the first one.
+sort -o perl.exp -u perl.exp
+
+# eof