Add Guile as an extension language.

	* NEWS: Mention Guile scripting.
	* Makefile.in (SUBDIR_GUILE_OBS): New variable.
	(SUBDIR_GUILE_SRCS, SUBDIR_GUILE_DEPS): New variables
	(SUBDIR_GUILE_LDFLAGS, SUBDIR_GUILE_CFLAGS): New variables.
	(INTERNAL_CPPFLAGS): Add GUILE_CPPFLAGS.
	(CLIBS): Add GUILE_LIBS.
	(install-guile): New rule.
	(guile.o): New rule.
	(scm-arch.o, scm-auto-load.o, scm-block.o): New rules.
	(scm-breakpoint.o, scm-disasm.o, scm-exception.o): New rules.
	(scm-frame.o, scm-iterator.o, scm-lazy-string.o): New rules.
	(scm-math.o, scm-objfile.o, scm-ports.o): New rules.
	(scm-pretty-print.o, scm-safe-call.o, scm-gsmob.o): New rules.
	(scm-string.o, scm-symbol.o, scm-symtab.o): New rules.
	(scm-type.o, scm-utils.o, scm-value.o): New rules.
	* configure.ac: New option --with-guile.
	* configure: Regenerate.
	* config.in: Regenerate.
	* auto-load.c: Remove #include "python/python.h".  Add #include
	"gdb/section-scripts.h".
	(source_section_scripts): Handle Guile scripts.
	(_initialize_auto_load): Add name of Guile objfile script to
	scripts-directory help text.
	* breakpoint.c (condition_command): Tweak comment to include Scheme.
	* breakpoint.h (gdbscm_breakpoint_object): Add forward decl.
	(struct breakpoint): New member scm_bp_object.
	* defs.h (enum command_control_type): New value guile_control.
	* cli/cli-cmds.c: Remove #include "python/python.h".  Add #include
	"extension.h".
	(show_user): Update comment.
	(_initialize_cli_cmds): Update help text for "show user".  Update help
	text for max-user-call-depth.
	* cli/cli-script.c: Remove #include "python/python.h".  Add #include
	"extension.h".
	(multi_line_command_p): Add guile_control.
	(print_command_lines): Handle guile_control.
	(execute_control_command, recurse_read_control_structure): Ditto.
	(process_next_line): Recognize "guile" commands.
	* disasm.c (gdb_disassemble_info): Make non-static.
	* disasm.h: #include "dis-asm.h".
	(struct gdbarch): Add forward decl.
	(gdb_disassemble_info): Declare.
	* extension.c: #include "guile/guile.h".
	(extension_languages): Add guile.
	(get_ext_lang_defn): Handle EXT_LANG_GDB.
	* extension.h (enum extension_language): New value EXT_LANG_GUILE.
	* gdbtypes.c (get_unsigned_type_max): New function.
	(get_signed_type_minmax): New function.
	* gdbtypes.h (get_unsigned_type_max): Declare.
	(get_signed_type_minmax): Declare.
	* guile/README: New file.
	* guile/guile-internal.h: New file.
	* guile/guile.c: New file.
	* guile/guile.h: New file.
	* guile/scm-arch.c: New file.
	* guile/scm-auto-load.c: New file.
	* guile/scm-block.c: New file.
	* guile/scm-breakpoint.c: New file.
	* guile/scm-disasm.c: New file.
	* guile/scm-exception.c: New file.
	* guile/scm-frame.c: New file.
	* guile/scm-gsmob.c: New file.
	* guile/scm-iterator.c: New file.
	* guile/scm-lazy-string.c: New file.
	* guile/scm-math.c: New file.
	* guile/scm-objfile.c: New file.
	* guile/scm-ports.c: New file.
	* guile/scm-pretty-print.c: New file.
	* guile/scm-safe-call.c: New file.
	* guile/scm-string.c: New file.
	* guile/scm-symbol.c: New file.
	* guile/scm-symtab.c: New file.
	* guile/scm-type.c: New file.
	* guile/scm-utils.c: New file.
	* guile/scm-value.c: New file.
	* guile/lib/gdb.scm: New file.
	* guile/lib/gdb/boot.scm: New file.
	* guile/lib/gdb/experimental.scm: New file.
	* guile/lib/gdb/init.scm: New file.
	* guile/lib/gdb/iterator.scm: New file.
	* guile/lib/gdb/printing.scm: New file.
	* guile/lib/gdb/types.scm: New file.
	* data-directory/Makefile.in (GUILE_SRCDIR): New variable.
	(VPATH): Add $(GUILE_SRCDIR).
	(GUILE_DIR): New variable.
	(GUILE_INSTALL_DIR, GUILE_FILES): New variables.
	(all): Add stamp-guile dependency.
	(stamp-guile): New rule.
	(clean-guile, install-guile, uninstall-guile): New rules.
	(install-only): Add install-guile dependency.
	(uninstall): Add uninstall-guile dependency.
	(clean): Add clean-guile dependency.

	doc/
	* Makefile.in (GDB_DOC_FILES): Add guile.texi.
	* gdb.texinfo (Auto-loading): Add set/show auto-load guile-scripts.
	(Extending GDB): New menu entries Guile, Multiple Extension Languages.
	(Guile docs): Include guile.texi.
	(objfile-gdbdotext file): Add objfile-gdb.scm.
	(dotdebug_gdb_scripts section): Mention Guile scripts.
	(Multiple Extension Languages): New node.
	* guile.texi: New file.

	testsuite/
	* configure.ac (AC_OUTPUT): Add gdb.guile.
	* configure: Regenerate.
	* lib/gdb-guile.exp: New file.
	* lib/gdb.exp (get_target_charset): New function.
	* gdb.base/help.exp: Update expected output from "apropos apropos".
	* gdb.guile/Makefile.in: New file.
	* gdb.guile/guile.exp: New file.
	* gdb.guile/scm-arch.c: New file.
	* gdb.guile/scm-arch.exp: New file.
	* gdb.guile/scm-block.c: New file.
	* gdb.guile/scm-block.exp: New file.
	* gdb.guile/scm-breakpoint.c: New file.
	* gdb.guile/scm-breakpoint.exp: New file.
	* gdb.guile/scm-disasm.c: New file.
	* gdb.guile/scm-disasm.exp: New file.
	* gdb.guile/scm-equal.c: New file.
	* gdb.guile/scm-equal.exp: New file.
	* gdb.guile/scm-error.exp: New file.
	* gdb.guile/scm-error.scm: New file.
	* gdb.guile/scm-frame-args.c: New file.
	* gdb.guile/scm-frame-args.exp: New file.
	* gdb.guile/scm-frame-args.scm: New file.
	* gdb.guile/scm-frame-inline.c: New file.
	* gdb.guile/scm-frame-inline.exp: New file.
	* gdb.guile/scm-frame.c: New file.
	* gdb.guile/scm-frame.exp: New file.
	* gdb.guile/scm-generics.exp: New file.
	* gdb.guile/scm-gsmob.exp: New file.
	* gdb.guile/scm-iterator.c: New file.
	* gdb.guile/scm-iterator.exp: New file.
	* gdb.guile/scm-math.c: New file.
	* gdb.guile/scm-math.exp: New file.
	* gdb.guile/scm-objfile-script-gdb.in: New file.
	* gdb.guile/scm-objfile-script.c: New file.
	* gdb.guile/scm-objfile-script.exp: New file.
	* gdb.guile/scm-objfile.c: New file.
	* gdb.guile/scm-objfile.exp: New file.
	* gdb.guile/scm-ports.exp: New file.
	* gdb.guile/scm-pretty-print.c: New file.
	* gdb.guile/scm-pretty-print.exp: New file.
	* gdb.guile/scm-pretty-print.scm: New file.
	* gdb.guile/scm-section-script.c: New file.
	* gdb.guile/scm-section-script.exp: New file.
	* gdb.guile/scm-section-script.scm: New file.
	* gdb.guile/scm-symbol.c: New file.
	* gdb.guile/scm-symbol.exp: New file.
	* gdb.guile/scm-symtab-2.c: New file.
	* gdb.guile/scm-symtab.c: New file.
	* gdb.guile/scm-symtab.exp: New file.
	* gdb.guile/scm-type.c: New file.
	* gdb.guile/scm-type.exp: New file.
	* gdb.guile/scm-value-cc.cc: New file.
	* gdb.guile/scm-value-cc.exp: New file.
	* gdb.guile/scm-value.c: New file.
	* gdb.guile/scm-value.exp: New file.
	* gdb.guile/source2.scm: New file.
	* gdb.guile/types-module.cc: New file.
	* gdb.guile/types-module.exp: New file.

1 files changed, 413 insertions, 0 deletions

diff --git a/gdb/guile/scm-objfile.c b/gdb/guile/scm-objfile.c
new file mode 100644
index 0000000..9a20dc7
--- /dev/null
+++ b/gdb/guile/scm-objfile.c
@@ -0,0 +1,413 @@
+/* Scheme interface to objfiles.
+
+   Copyright (C) 2008-2014 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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/>.  */
+
+/* See README file in this directory for implementation notes, coding
+   conventions, et.al.  */
+
+#include "defs.h"
+#include "objfiles.h"
+#include "language.h"
+#include "guile-internal.h"
+
+/* The <gdb:objfile> smob.
+   The typedef for this struct is in guile-internal.h.  */
+
+struct _objfile_smob
+{
+  /* This always appears first.  */
+  gdb_smob base;
+
+  /* The corresponding objfile.  */
+  struct objfile *objfile;
+
+  /* The pretty-printer list of functions.  */
+  SCM pretty_printers;
+
+  /* The <gdb:objfile> object we are contained in, needed to protect/unprotect
+     the object since a reference to it comes from non-gc-managed space
+     (the objfile).  */
+  SCM containing_scm;
+};
+
+static const char objfile_smob_name[] = "gdb:objfile";
+
+/* The tag Guile knows the objfile smob by.  */
+static scm_t_bits objfile_smob_tag;
+
+static const struct objfile_data *ofscm_objfile_data_key;
+
+/* Return the list of pretty-printers registered with O_SMOB.  */
+
+SCM
+ofscm_objfile_smob_pretty_printers (objfile_smob *o_smob)
+{
+  return o_smob->pretty_printers;
+}
+
+/* Administrivia for objfile smobs.  */
+
+/* The smob "mark" function for <gdb:objfile>.  */
+
+static SCM
+ofscm_mark_objfile_smob (SCM self)
+{
+  objfile_smob *o_smob = (objfile_smob *) SCM_SMOB_DATA (self);
+
+  scm_gc_mark (o_smob->pretty_printers);
+
+  /* We don't mark containing_scm here.  It is just a backlink to our
+     container, and is gc'protected until the objfile is deleted.  */
+
+  /* Do this last.  */
+  return gdbscm_mark_gsmob (&o_smob->base);
+}
+
+/* The smob "print" function for <gdb:objfile>.  */
+
+static int
+ofscm_print_objfile_smob (SCM self, SCM port, scm_print_state *pstate)
+{
+  objfile_smob *o_smob = (objfile_smob *) SCM_SMOB_DATA (self);
+
+  gdbscm_printf (port, "#<%s ", objfile_smob_name);
+  gdbscm_printf (port, "%s",
+		 o_smob->objfile != NULL
+		 ? objfile_name (o_smob->objfile)
+		 : "{invalid}");
+  scm_puts (">", port);
+
+  scm_remember_upto_here_1 (self);
+
+  /* Non-zero means success.  */
+  return 1;
+}
+
+/* Low level routine to create a <gdb:objfile> object.
+   It's empty in the sense that an OBJFILE still needs to be associated
+   with it.  */
+
+static SCM
+ofscm_make_objfile_smob (void)
+{
+  objfile_smob *o_smob = (objfile_smob *)
+    scm_gc_malloc (sizeof (objfile_smob), objfile_smob_name);
+  SCM o_scm;
+
+  o_smob->objfile = NULL;
+  o_smob->pretty_printers = SCM_EOL;
+  o_scm = scm_new_smob (objfile_smob_tag, (scm_t_bits) o_smob);
+  o_smob->containing_scm = o_scm;
+  gdbscm_init_gsmob (&o_smob->base);
+
+  return o_scm;
+}
+
+/* Clear the OBJFILE pointer in O_SMOB and unprotect the object from GC.  */
+
+static void
+ofscm_release_objfile (objfile_smob *o_smob)
+{
+  o_smob->objfile = NULL;
+  scm_gc_unprotect_object (o_smob->containing_scm);
+}
+
+/* Objfile registry cleanup handler for when an objfile is deleted.  */
+
+static void
+ofscm_handle_objfile_deleted (struct objfile *objfile, void *datum)
+{
+  objfile_smob *o_smob = datum;
+
+  gdb_assert (o_smob->objfile == objfile);
+
+  ofscm_release_objfile (o_smob);
+}
+
+/* Return non-zero if SCM is a <gdb:objfile> object.  */
+
+static int
+ofscm_is_objfile (SCM scm)
+{
+  return SCM_SMOB_PREDICATE (objfile_smob_tag, scm);
+}
+
+/* (objfile? object) -> boolean */
+
+static SCM
+gdbscm_objfile_p (SCM scm)
+{
+  return scm_from_bool (ofscm_is_objfile (scm));
+}
+
+/* Return a pointer to the objfile_smob that encapsulates OBJFILE,
+   creating one if necessary.
+   The result is cached so that we have only one copy per objfile.  */
+
+objfile_smob *
+ofscm_objfile_smob_from_objfile (struct objfile *objfile)
+{
+  objfile_smob *o_smob;
+
+  o_smob = objfile_data (objfile, ofscm_objfile_data_key);
+  if (o_smob == NULL)
+    {
+      SCM o_scm = ofscm_make_objfile_smob ();
+
+      o_smob = (objfile_smob *) SCM_SMOB_DATA (o_scm);
+      o_smob->objfile = objfile;
+
+      set_objfile_data (objfile, ofscm_objfile_data_key, o_smob);
+      scm_gc_protect_object (o_smob->containing_scm);
+    }
+
+  return o_smob;
+}
+
+/* Return the <gdb:objfile> object that encapsulates OBJFILE.  */
+
+SCM
+ofscm_scm_from_objfile (struct objfile *objfile)
+{
+  objfile_smob *o_smob = ofscm_objfile_smob_from_objfile (objfile);
+
+  return o_smob->containing_scm;
+}
+
+/* Returns the <gdb:objfile> object in SELF.
+   Throws an exception if SELF is not a <gdb:objfile> object.  */
+
+static SCM
+ofscm_get_objfile_arg_unsafe (SCM self, int arg_pos, const char *func_name)
+{
+  SCM_ASSERT_TYPE (ofscm_is_objfile (self), self, arg_pos, func_name,
+		   objfile_smob_name);
+
+  return self;
+}
+
+/* Returns a pointer to the objfile smob of SELF.
+   Throws an exception if SELF is not a <gdb:objfile> object.  */
+
+static objfile_smob *
+ofscm_get_objfile_smob_arg_unsafe (SCM self, int arg_pos,
+				   const char *func_name)
+{
+  SCM o_scm = ofscm_get_objfile_arg_unsafe (self, arg_pos, func_name);
+  objfile_smob *o_smob = (objfile_smob *) SCM_SMOB_DATA (o_scm);
+
+  return o_smob;
+}
+
+/* Return non-zero if objfile O_SMOB is valid.  */
+
+static int
+ofscm_is_valid (objfile_smob *o_smob)
+{
+  return o_smob->objfile != NULL;
+}
+
+/* Return the objfile smob in SELF, verifying it's valid.
+   Throws an exception if SELF is not a <gdb:objfile> object or is invalid.  */
+
+static objfile_smob *
+ofscm_get_valid_objfile_smob_arg_unsafe (SCM self, int arg_pos,
+					 const char *func_name)
+{
+  objfile_smob *o_smob
+    = ofscm_get_objfile_smob_arg_unsafe (self, arg_pos, func_name);
+
+  if (!ofscm_is_valid (o_smob))
+    {
+      gdbscm_invalid_object_error (func_name, arg_pos, self,
+				   _("<gdb:objfile>"));
+    }
+
+  return o_smob;
+}
+
+/* Objfile methods.  */
+
+/* (objfile-valid? <gdb:objfile>) -> boolean
+   Returns #t if this object file still exists in GDB.  */
+
+static SCM
+gdbscm_objfile_valid_p (SCM self)
+{
+  objfile_smob *o_smob
+    = ofscm_get_objfile_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
+
+  return scm_from_bool (o_smob->objfile != NULL);
+}
+
+/* (objfile-filename <gdb:objfile>) -> string
+   Returns the objfile's file name.
+   Throw's an exception if the underlying objfile is invalid.  */
+
+static SCM
+gdbscm_objfile_filename (SCM self)
+{
+  objfile_smob *o_smob
+    = ofscm_get_valid_objfile_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
+
+  return gdbscm_scm_from_c_string (objfile_name (o_smob->objfile));
+}
+
+/* (objfile-pretty-printers <gdb:objfile>) -> list
+   Returns the list of pretty-printers for this objfile.  */
+
+static SCM
+gdbscm_objfile_pretty_printers (SCM self)
+{
+  objfile_smob *o_smob
+    = ofscm_get_objfile_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
+
+  return o_smob->pretty_printers;
+}
+
+/* (set-objfile-pretty-printers! <gdb:objfile> list) -> unspecified
+   Set the pretty-printers for this objfile.  */
+
+static SCM
+gdbscm_set_objfile_pretty_printers_x (SCM self, SCM printers)
+{
+  objfile_smob *o_smob
+    = ofscm_get_objfile_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
+
+  SCM_ASSERT_TYPE (gdbscm_is_true (scm_list_p (printers)), printers,
+		   SCM_ARG2, FUNC_NAME, _("list"));
+
+  o_smob->pretty_printers = printers;
+
+  return SCM_UNSPECIFIED;
+}
+
+/* The "current" objfile.  This is set when gdb detects that a new
+   objfile has been loaded.  It is only set for the duration of a call to
+   gdbscm_source_objfile_script; it is NULL at other times.  */
+static struct objfile *ofscm_current_objfile;
+
+/* Set the current objfile to OBJFILE and then read FILE named FILENAME
+   as Guile code.  This does not throw any errors.  If an exception
+   occurs Guile will print the backtrace.
+   This is the extension_language_script_ops.objfile_script_sourcer
+   "method".  */
+
+void
+gdbscm_source_objfile_script (const struct extension_language_defn *extlang,
+			      struct objfile *objfile, FILE *file,
+			      const char *filename)
+{
+  char *msg;
+
+  ofscm_current_objfile = objfile;
+
+  msg = gdbscm_safe_source_script (filename);
+  if (msg != NULL)
+    {
+      fprintf_filtered (gdb_stderr, "%s", msg);
+      xfree (msg);
+    }
+
+  ofscm_current_objfile = NULL;
+}
+
+/* (current-objfile) -> <gdb:obfjile>
+   Return the current objfile, or #f if there isn't one.
+   Ideally this would be named ofscm_current_objfile, but that name is
+   taken by the variable recording the current objfile.  */
+
+static SCM
+gdbscm_get_current_objfile (void)
+{
+  if (ofscm_current_objfile == NULL)
+    return SCM_BOOL_F;
+
+  return ofscm_scm_from_objfile (ofscm_current_objfile);
+}
+
+/* (objfiles) -> list
+   Return a list of all objfiles in the current program space.  */
+
+static SCM
+gdbscm_objfiles (void)
+{
+  struct objfile *objf;
+  SCM result;
+
+  result = SCM_EOL;
+
+  ALL_OBJFILES (objf)
+  {
+    SCM item = ofscm_scm_from_objfile (objf);
+
+    result = scm_cons (item, result);
+  }
+
+  return scm_reverse_x (result, SCM_EOL);
+}
+
+/* Initialize the Scheme objfile support.  */
+
+static const scheme_function objfile_functions[] =
+{
+  { "objfile?", 1, 0, 0, gdbscm_objfile_p,
+    "\
+Return #t if the object is a <gdb:objfile> object." },
+
+  { "objfile-valid?", 1, 0, 0, gdbscm_objfile_valid_p,
+    "\
+Return #t if the objfile is valid (hasn't been deleted from gdb)." },
+
+  { "objfile-filename", 1, 0, 0, gdbscm_objfile_filename,
+    "\
+Return the file name of the objfile." },
+
+  { "objfile-pretty-printers", 1, 0, 0, gdbscm_objfile_pretty_printers,
+    "\
+Return a list of pretty-printers of the objfile." },
+
+  { "set-objfile-pretty-printers!", 2, 0, 0,
+    gdbscm_set_objfile_pretty_printers_x,
+    "\
+Set the list of pretty-printers of the objfile." },
+
+  { "current-objfile", 0, 0, 0, gdbscm_get_current_objfile,
+    "\
+Return the current objfile if there is one or #f if there isn't one." },
+
+  { "objfiles", 0, 0, 0, gdbscm_objfiles,
+    "\
+Return a list of all objfiles in the current program space." },
+
+  END_FUNCTIONS
+};
+
+void
+gdbscm_initialize_objfiles (void)
+{
+  objfile_smob_tag
+    = gdbscm_make_smob_type (objfile_smob_name, sizeof (objfile_smob));
+  scm_set_smob_mark (objfile_smob_tag, ofscm_mark_objfile_smob);
+  scm_set_smob_print (objfile_smob_tag, ofscm_print_objfile_smob);
+
+  gdbscm_define_functions (objfile_functions, 1);
+
+  ofscm_objfile_data_key
+    = register_objfile_data_with_cleanup (NULL, ofscm_handle_objfile_deleted);
+}