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-rw-r--r--examples/loadables/perl/Makefile.in99
-rw-r--r--examples/loadables/perl/README6
-rw-r--r--examples/loadables/perl/bperl.c53
-rw-r--r--examples/loadables/perl/iperl.c38
4 files changed, 196 insertions, 0 deletions
diff --git a/examples/loadables/perl/Makefile.in b/examples/loadables/perl/Makefile.in
new file mode 100644
index 0000000..59f39b6
--- /dev/null
+++ b/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
diff --git a/examples/loadables/perl/README b/examples/loadables/perl/README
new file mode 100644
index 0000000..a70a99b
--- /dev/null
+++ b/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.
diff --git a/examples/loadables/perl/bperl.c b/examples/loadables/perl/bperl.c
new file mode 100644
index 0000000..5b15258
--- /dev/null
+++ b/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
+};
diff --git a/examples/loadables/perl/iperl.c b/examples/loadables/perl/iperl.c
new file mode 100644
index 0000000..89438af
--- /dev/null
+++ b/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);
+}