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authorLudovic Courtès <ludo@gnu.org>2009-08-17 23:39:56 +0200
committerLudovic Courtès <ludo@gnu.org>2009-08-18 00:06:45 +0200
commitfbb857a472eb4e69c1cba05e86646b7004f32df6 (patch)
treeff23e64de5a558b575ed812349d8af6e64d8ceb4 /libguile/vm-engine.c
parent49c9839eae84f7f3cd10db45f389fa1ea1050659 (diff)
parente33a910dd0f430f34c32fe6846899aee33fc2cf6 (diff)
downloadguile-fbb857a472eb4e69c1cba05e86646b7004f32df6.tar.gz
Merge branch 'master' into boehm-demers-weiser-gc
Conflicts: lib/Makefile.am libguile/Makefile.am libguile/frames.c libguile/gc-card.c libguile/gc-freelist.c libguile/gc-mark.c libguile/gc-segment.c libguile/gc_os_dep.c libguile/load.c libguile/macros.c libguile/objcodes.c libguile/programs.c libguile/strings.c libguile/vm.c m4/gnulib-cache.m4 m4/gnulib-comp.m4 m4/inline.m4
Diffstat (limited to 'libguile/vm-engine.c')
-rw-r--r--libguile/vm-engine.c93
1 files changed, 39 insertions, 54 deletions
diff --git a/libguile/vm-engine.c b/libguile/vm-engine.c
index 58ed43db6..b0888c1ec 100644
--- a/libguile/vm-engine.c
+++ b/libguile/vm-engine.c
@@ -1,57 +1,34 @@
-/* Copyright (C) 2001 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 2, 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.
+/* Copyright (C) 2001, 2009 Free Software Foundation, Inc.
*
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
*
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
+ * This library 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
+ * Lesser General Public License for more details.
*
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
/* This file is included in vm.c multiple times */
#if (VM_ENGINE == SCM_VM_REGULAR_ENGINE)
#define VM_USE_HOOKS 0 /* Various hooks */
#define VM_USE_CLOCK 0 /* Bogoclock */
-#define VM_CHECK_EXTERNAL 1 /* Check external link */
#define VM_CHECK_OBJECT 1 /* Check object table */
+#define VM_CHECK_FREE_VARIABLES 1 /* Check free variable access */
#define VM_PUSH_DEBUG_FRAMES 0 /* Push frames onto the evaluator debug stack */
#elif (VM_ENGINE == SCM_VM_DEBUG_ENGINE)
#define VM_USE_HOOKS 1
#define VM_USE_CLOCK 1
-#define VM_CHECK_EXTERNAL 1
#define VM_CHECK_OBJECT 1
+#define VM_CHECK_FREE_VARIABLES 1
#define VM_PUSH_DEBUG_FRAMES 1
#else
#error unknown debug engine VM_ENGINE
@@ -70,7 +47,8 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
/* Cache variables */
struct scm_objcode *bp = NULL; /* program base pointer */
- SCM external = SCM_EOL; /* external environment */
+ SCM *free_vars = NULL; /* free variables */
+ size_t free_vars_count = 0; /* length of FREE_VARS */
SCM *objects = NULL; /* constant objects */
size_t object_count = 0; /* length of OBJECTS */
SCM *stack_base = vp->stack_base; /* stack base address */
@@ -175,7 +153,7 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
vm_error_bad_instruction:
err_msg = scm_from_locale_string ("VM: Bad instruction: ~A");
- finish_args = SCM_LIST1 (scm_from_uchar (ip[-1]));
+ finish_args = scm_list_1 (scm_from_uchar (ip[-1]));
goto vm_error;
vm_error_unbound:
@@ -189,7 +167,7 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
vm_error_too_many_args:
err_msg = scm_from_locale_string ("VM: Too many arguments");
- finish_args = SCM_LIST1 (scm_from_int (nargs));
+ finish_args = scm_list_1 (scm_from_int (nargs));
goto vm_error;
vm_error_wrong_num_args:
@@ -202,8 +180,8 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
vm_error_wrong_type_apply:
err_msg = scm_from_locale_string ("VM: Wrong type to apply: ~S "
"[IP offset: ~a]");
- finish_args = SCM_LIST2 (program,
- SCM_I_MAKINUM (ip - bp->base));
+ finish_args = scm_list_2 (program,
+ SCM_I_MAKINUM (ip - bp->base));
goto vm_error;
vm_error_stack_overflow:
@@ -226,6 +204,12 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
/* shouldn't get here */
goto vm_error;
+ vm_error_not_a_bytevector:
+ SYNC_ALL ();
+ scm_wrong_type_arg_msg (FUNC_NAME, 1, finish_args, "bytevector");
+ /* shouldn't get here */
+ goto vm_error;
+
vm_error_no_values:
err_msg = scm_from_locale_string ("VM: 0-valued return");
finish_args = SCM_EOL;
@@ -236,8 +220,8 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
finish_args = SCM_EOL;
goto vm_error;
- vm_error_no_such_module:
- err_msg = scm_from_locale_string ("VM: No such module: ~A");
+ vm_error_bad_wide_string_length:
+ err_msg = scm_from_locale_string ("VM: Bad wide string length: ~S");
goto vm_error;
#if VM_CHECK_IP
@@ -247,16 +231,16 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
goto vm_error;
#endif
-#if VM_CHECK_EXTERNAL
- vm_error_external:
- err_msg = scm_from_locale_string ("VM: Invalid external access");
+#if VM_CHECK_OBJECT
+ vm_error_object:
+ err_msg = scm_from_locale_string ("VM: Invalid object table access");
finish_args = SCM_EOL;
goto vm_error;
#endif
-#if VM_CHECK_OBJECT
- vm_error_object:
- err_msg = scm_from_locale_string ("VM: Invalid object table access");
+#if VM_CHECK_FREE_VARIABLES
+ vm_error_free_variable:
+ err_msg = scm_from_locale_string ("VM: Invalid free variable access");
finish_args = SCM_EOL;
goto vm_error;
#endif
@@ -264,7 +248,8 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
vm_error:
SYNC_ALL ();
- scm_ithrow (sym_vm_error, SCM_LIST3 (sym_vm_run, err_msg, finish_args), 1);
+ scm_ithrow (sym_vm_error, scm_list_3 (sym_vm_run, err_msg, finish_args),
+ 1);
}
abort (); /* never reached */
@@ -272,8 +257,8 @@ VM_NAME (struct scm_vm *vp, SCM program, SCM *argv, int nargs)
#undef VM_USE_HOOKS
#undef VM_USE_CLOCK
-#undef VM_CHECK_EXTERNAL
#undef VM_CHECK_OBJECT
+#undef VM_CHECK_FREE_VARIABLE
#undef VM_PUSH_DEBUG_FRAMES
/*