Adding upstream version 5.2.37.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

examples/loadables/perl/Makefile.in

@@ -0,0 +1,99 @@
+#
+# Makefile for builtin perl interpreter
+#
+#
+#   Copyright (C) 1998 Free Software Foundation, Inc.     
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# Include some boilerplate Gnu makefile definitions.
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+libdir = @libdir@
+infodir = @infodir@
+includedir = @includedir@
+
+datarootdir = @datarootdir@
+
+topdir = @top_srcdir@
+BUILD_DIR = @BUILD_DIR@
+srcdir = @srcdir@
+VPATH = @srcdir@
+
+@SET_MAKE@
+CC = @CC@
+RM = rm -f
+
+SHELL = @MAKE_SHELL@
+
+PERL5 = perl5
+
+CFLAGS = @CFLAGS@
+
+#
+# These values are generated for configure by ${topdir}/support/shobj-conf.
+# If your system is not supported by that script, but includes facilities for
+# dynamic loading of shared objects, please update the script and send the
+# changes to bash-maintainers@gnu.org.
+#
+SHOBJ_CC = @SHOBJ_CC@
+SHOBJ_CFLAGS = @SHOBJ_CFLAGS@
+SHOBJ_LD = @SHOBJ_LD@
+SHOBJ_LDFLAGS = @SHOBJ_LDFLAGS@
+SHOBJ_XLDFLAGS = @SHOBJ_XLDFLAGS@
+SHOBJ_LIBS = @SHOBJ_LIBS@
+SHOBJ_STATUS = @SHOBJ_STATUS@
+
+# Values used for compiling the perl files
+PERL_LDOPTS = `${PERL5} -MExtUtils::Embed -e ldopts`
+PERL_CFLAGS = ${CCFLAGS} `${PERL5} -MExtUtils::Embed -e ccopts`
+
+SRC = bperl.c iperl.c perlxsi.c
+OBJ = bperl.o iperl.o perlxsi.o
+
+BUILTIN = bperl5
+
+INC = -I. -I.. -I$(topdir) -I$(topdir)/lib -I$(topdir)/builtins \
+      -I$(topdir)/include -I$(BUILD_DIR) -I$(BUILD_DIR)/lib \
+      -I$(BUILD_DIR)/builtins
+
+
+${BUILTIN}:	${OBJ}
+	${RM} $@
+	${SHOBJ_LD} ${SHOBJ_LDFLAGS} ${SHOBJ_XLDFLAGS} -o $@ ${OBJ} ${PERL_LDOPTS} ${SHOBJ_LIBS}
+
+bperl.o:	bperl.c
+	${RM} $@
+	$(SHOBJ_CC) $(SHOBJ_CFLAGS) $(CFLAGS) $(INC) -c -o $@ ${srcdir}/bperl.c
+
+iperl.o:	iperl.c
+	${RM} $@
+	$(SHOBJ_CC) ${SHOBJ_CFLAGS} $(PERL_CFLAGS) -c -o $@ ${srcdir}/iperl.c
+
+perlxsi.c:
+	${PERL5} -MExtUtils::Embed -e xsinit -- -o $@
+
+perlxsi.o:	perlxsi.c
+	${RM} $@
+	${SHOBJ_CC} ${SHOBJ_CFLAGS} $(PERL_CFLAGS) -c -o $@ perlxsi.c
+
+clean mostlyclean:
+	${RM} ${OBJ}
+	${RM} ${BUILTIN}
+
+distclean maintainer-clean: clean
+	${RM} perlxsi.c

examples/loadables/perl/README

@@ -0,0 +1,6 @@
+This illustrates how to build a perl interpreter into bash.  It's not
+especially useful; more a proof of concept (it provides none of the
+bash internals to the perl interpreter, for example).
+
+This *may* require adding "-rpath /path/to/perl/CORE" and -lperl options
+when compiling bash itself.

examples/loadables/perl/bperl.c

@@ -0,0 +1,53 @@
+/*
+ * perl builtin
+ */
+#include <config.h>
+
+#include <errno.h>
+
+#include "builtins.h"
+#include "shell.h"
+#include "common.h"
+
+#ifndef errno
+extern int errno;
+#endif
+
+extern char **make_builtin_argv (WORD_LIST *, int *);
+extern char **export_env;
+
+extern void perl_close(void);
+extern int perl_main(int, char **, char **);
+
+int
+bperl_builtin(WORD_LIST *list)
+{
+	char	**v;
+	int	c, r;
+
+	v = make_builtin_argv(list, &c);
+	r = perl_main(c, v, export_env);
+	free(v);
+
+	return r;
+}
+
+void
+bperl_builtin_unload (char *s)
+{
+	perl_close();
+}
+
+char *bperl_doc[] = {
+	"An interface to a perl5 interpreter.",
+	(char *)0
+};
+
+struct builtin bperl_struct = {
+	"bperl",
+	bperl_builtin,
+	BUILTIN_ENABLED,
+	bperl_doc,
+	"bperl [perl options] [file ...]",
+	0
+};

examples/loadables/perl/iperl.c

@@ -0,0 +1,38 @@
+#include <EXTERN.h>               /* from the Perl distribution     */
+#include <perl.h>                 /* from the Perl distribution     */
+
+#define iperl my_perl		/* I guess the name `my_perl' is required */
+
+extern void xs_init (pTHX);
+
+static PerlInterpreter *iperl;  /***    The Perl interpreter    ***/
+
+static int first = 1;
+
+void
+perl_close (void)
+{
+	PERL_SYS_TERM();
+}
+
+int
+perl_main(int argc, char **argv, char **env)
+{
+	int	r;
+
+	if (first) {
+		first = 0;
+		PERL_SYS_INIT3(&argc, &argv, &env);
+	}
+	iperl = perl_alloc();
+	perl_construct(iperl);
+	perl_parse(iperl, xs_init, argc, argv, (char **)NULL);
+	r = perl_run(iperl);
+
+PerlIO_flush(PerlIO_stdout());
+PerlIO_flush(PerlIO_stderr());
+
+	perl_destruct(iperl);
+	perl_free(iperl);
+	return (r);
+}