-/* Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc.
+/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
#include <alloca.h>
#include <alignof.h>
#include <string.h>
+#include <stdint.h>
#include "libguile/bdw-gc.h"
#include <gc/gc_mark.h>
#include "programs.h"
#include "vm.h"
-/* I sometimes use this for debugging. */
-#define vm_puts(OBJ) \
-{ \
- scm_display (OBJ, scm_current_error_port ()); \
- scm_newline (scm_current_error_port ()); \
-}
+#include "private-gc.h" /* scm_getenv_int */
+
+static int vm_default_engine = SCM_VM_REGULAR_ENGINE;
+
+/* Unfortunately we can't snarf these: snarfed things are only loaded up from
+ (system vm vm), which might not be loaded before an error happens. */
+static SCM sym_vm_run;
+static SCM sym_vm_error;
+static SCM sym_keyword_argument_error;
+static SCM sym_regular;
+static SCM sym_debug;
/* The VM has a number of internal assertions that shouldn't normally be
necessary, but might be if you think you found a bug in the VM. */
cp = SCM_VM_CONT_DATA (cont);
base = SCM_FRAME_UPPER_ADDRESS (vp->fp) + 1;
-#define RELOC(scm_p) (scm_p + cp->reloc + (base - cp->stack_base))
+#define RELOC(scm_p) \
+ (((SCM *) (scm_p)) + cp->reloc + (base - cp->stack_base))
if ((base - vp->stack_base) + cp->stack_size + n + 1 > vp->stack_size)
scm_misc_error ("vm-engine",
* VM Internal functions
*/
-/* Unfortunately we can't snarf these: snarfed things are only loaded up from
- (system vm vm), which might not be loaded before an error happens. */
-static SCM sym_vm_run, sym_vm_error, sym_keyword_argument_error, sym_debug;
-
void
scm_i_vm_print (SCM x, SCM port, scm_print_state *pstate)
{
scm_puts (">", port);
}
-static SCM
-really_make_boot_program (long nargs)
+\f
+/*
+ * VM Error Handling
+ */
+
+static void vm_error (const char *msg, SCM arg) SCM_NORETURN;
+static void vm_error_bad_instruction (scm_t_uint32 inst) SCM_NORETURN;
+static void vm_error_unbound (SCM proc, SCM sym) SCM_NORETURN;
+static void vm_error_unbound_fluid (SCM proc, SCM fluid) SCM_NORETURN;
+static void vm_error_not_a_variable (const char *func_name, SCM x) SCM_NORETURN;
+static void vm_error_not_a_thunk (const char *func_name, SCM x) SCM_NORETURN;
+static void vm_error_apply_to_non_list (SCM x) SCM_NORETURN;
+static void vm_error_kwargs_length_not_even (SCM proc) SCM_NORETURN;
+static void vm_error_kwargs_invalid_keyword (SCM proc, SCM obj) SCM_NORETURN;
+static void vm_error_kwargs_unrecognized_keyword (SCM proc, SCM kw) SCM_NORETURN;
+static void vm_error_too_many_args (int nargs) SCM_NORETURN;
+static void vm_error_wrong_num_args (SCM proc) SCM_NORETURN;
+static void vm_error_wrong_type_apply (SCM proc) SCM_NORETURN;
+static void vm_error_stack_overflow (struct scm_vm *vp) SCM_NORETURN;
+static void vm_error_stack_underflow (void) SCM_NORETURN;
+static void vm_error_improper_list (SCM x) SCM_NORETURN;
+static void vm_error_not_a_pair (const char *subr, SCM x) SCM_NORETURN;
+static void vm_error_not_a_bytevector (const char *subr, SCM x) SCM_NORETURN;
+static void vm_error_not_a_struct (const char *subr, SCM x) SCM_NORETURN;
+static void vm_error_no_values (void) SCM_NORETURN;
+static void vm_error_not_enough_values (void) SCM_NORETURN;
+static void vm_error_continuation_not_rewindable (SCM cont) SCM_NORETURN;
+static void vm_error_bad_wide_string_length (size_t len) SCM_NORETURN;
+#if VM_CHECK_IP
+static void vm_error_invalid_address (void) SCM_NORETURN;
+#endif
+#if VM_CHECK_OBJECT
+static void vm_error_object (void) SCM_NORETURN;
+#endif
+#if VM_CHECK_FREE_VARIABLES
+static void vm_error_free_variable (void) SCM_NORETURN;
+#endif
+
+static void
+vm_error (const char *msg, SCM arg)
{
- SCM u8vec;
- scm_t_uint8 text[] = { scm_op_mv_call, 0, 0, 0, 1,
- scm_op_make_int8_1, scm_op_halt };
- struct scm_objcode *bp;
- SCM ret;
+ scm_throw (sym_vm_error,
+ scm_list_3 (sym_vm_run, scm_from_latin1_string (msg),
+ SCM_UNBNDP (arg) ? SCM_EOL : scm_list_1 (arg)));
+ abort(); /* not reached */
+}
- if (SCM_UNLIKELY (nargs > 255 || nargs < 0))
- scm_misc_error ("vm-engine", "too many args when making boot procedure",
- scm_list_1 (scm_from_long (nargs)));
+static void
+vm_error_bad_instruction (scm_t_uint32 inst)
+{
+ vm_error ("VM: Bad instruction: ~s", scm_from_uint32 (inst));
+}
- text[1] = (scm_t_uint8)nargs;
+static void
+vm_error_unbound (SCM proc, SCM sym)
+{
+ scm_error_scm (scm_misc_error_key, proc,
+ scm_from_latin1_string ("Unbound variable: ~s"),
+ scm_list_1 (sym), SCM_BOOL_F);
+}
- bp = scm_malloc (sizeof (struct scm_objcode) + sizeof (text));
- memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text));
- bp->len = sizeof(text);
- bp->metalen = 0;
+static void
+vm_error_unbound_fluid (SCM proc, SCM fluid)
+{
+ scm_error_scm (scm_misc_error_key, proc,
+ scm_from_latin1_string ("Unbound fluid: ~s"),
+ scm_list_1 (fluid), SCM_BOOL_F);
+}
- u8vec = scm_c_take_bytevector ((scm_t_int8*)bp,
- sizeof (struct scm_objcode) + sizeof (text));
- ret = scm_make_program (scm_bytecode_to_objcode (u8vec),
- SCM_BOOL_F, SCM_BOOL_F);
- SCM_SET_CELL_WORD_0 (ret, SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT);
+static void
+vm_error_not_a_variable (const char *func_name, SCM x)
+{
+ scm_error (scm_arg_type_key, func_name, "Not a variable: ~S",
+ scm_list_1 (x), scm_list_1 (x));
+}
- return ret;
+static void
+vm_error_not_a_thunk (const char *func_name, SCM x)
+{
+ scm_error (scm_arg_type_key, func_name, "Not a thunk: ~S",
+ scm_list_1 (x), scm_list_1 (x));
}
-#define NUM_BOOT_PROGS 8
-static SCM
-vm_make_boot_program (long nargs)
+
+static void
+vm_error_apply_to_non_list (SCM x)
{
- static SCM programs[NUM_BOOT_PROGS] = { 0, };
+ scm_error (scm_arg_type_key, "apply", "Apply to non-list: ~S",
+ scm_list_1 (x), scm_list_1 (x));
+}
- if (SCM_UNLIKELY (!programs[0]))
- {
- int i;
- for (i = 0; i < NUM_BOOT_PROGS; i++)
- programs[i] = really_make_boot_program (i);
- }
-
- if (SCM_LIKELY (nargs < NUM_BOOT_PROGS))
- return programs[nargs];
+static void
+vm_error_kwargs_length_not_even (SCM proc)
+{
+ scm_error_scm (sym_keyword_argument_error, proc,
+ scm_from_latin1_string ("Odd length of keyword argument list"),
+ SCM_EOL, SCM_BOOL_F);
+}
+
+static void
+vm_error_kwargs_invalid_keyword (SCM proc, SCM obj)
+{
+ scm_error_scm (sym_keyword_argument_error, proc,
+ scm_from_latin1_string ("Invalid keyword"),
+ SCM_EOL, scm_list_1 (obj));
+}
+
+static void
+vm_error_kwargs_unrecognized_keyword (SCM proc, SCM kw)
+{
+ scm_error_scm (sym_keyword_argument_error, proc,
+ scm_from_latin1_string ("Unrecognized keyword"),
+ SCM_EOL, scm_list_1 (kw));
+}
+
+static void
+vm_error_too_many_args (int nargs)
+{
+ vm_error ("VM: Too many arguments", scm_from_int (nargs));
+}
+
+static void
+vm_error_wrong_num_args (SCM proc)
+{
+ scm_wrong_num_args (proc);
+}
+
+static void
+vm_error_wrong_type_apply (SCM proc)
+{
+ scm_error (scm_arg_type_key, NULL, "Wrong type to apply: ~S",
+ scm_list_1 (proc), scm_list_1 (proc));
+}
+
+/* Reinstate the stack reserve in the VM pointed to by DATA. */
+static void
+reinstate_stack_reserve (void *data)
+{
+ struct scm_vm *vp = data;
+
+ vp->stack_limit -= VM_STACK_RESERVE_SIZE;
+}
+
+static void
+vm_error_stack_overflow (struct scm_vm *vp)
+{
+ if (vp->stack_limit < vp->stack_base + vp->stack_size)
+ /* There are VM_STACK_RESERVE_SIZE bytes left. Make them available so
+ that `throw' below can run on this VM. */
+ vp->stack_limit = vp->stack_base + vp->stack_size;
else
- return really_make_boot_program (nargs);
+ /* There is no space left on the stack. FIXME: Do something more
+ sensible here! */
+ abort ();
+
+ /* Before throwing, install a handler that reinstates the reserve so
+ that subsequent overflows are gracefully handled. */
+ scm_dynwind_begin (0);
+ scm_dynwind_unwind_handler (reinstate_stack_reserve, vp, 0);
+ vm_error ("VM: Stack overflow", SCM_UNDEFINED);
+ scm_dynwind_end ();
+}
+
+static void
+vm_error_stack_underflow (void)
+{
+ vm_error ("VM: Stack underflow", SCM_UNDEFINED);
+}
+
+static void
+vm_error_improper_list (SCM x)
+{
+ vm_error ("Expected a proper list, but got object with tail ~s", x);
+}
+
+static void
+vm_error_not_a_pair (const char *subr, SCM x)
+{
+ scm_wrong_type_arg_msg (subr, 1, x, "pair");
+}
+
+static void
+vm_error_not_a_bytevector (const char *subr, SCM x)
+{
+ scm_wrong_type_arg_msg (subr, 1, x, "bytevector");
+}
+
+static void
+vm_error_not_a_struct (const char *subr, SCM x)
+{
+ scm_wrong_type_arg_msg (subr, 1, x, "struct");
+}
+
+static void
+vm_error_no_values (void)
+{
+ vm_error ("Zero values returned to single-valued continuation",
+ SCM_UNDEFINED);
+}
+
+static void
+vm_error_not_enough_values (void)
+{
+ vm_error ("Too few values returned to continuation", SCM_UNDEFINED);
}
+static void
+vm_error_continuation_not_rewindable (SCM cont)
+{
+ vm_error ("Unrewindable partial continuation", cont);
+}
+
+static void
+vm_error_bad_wide_string_length (size_t len)
+{
+ vm_error ("VM: Bad wide string length: ~S", scm_from_size_t (len));
+}
+
+#ifdef VM_CHECK_IP
+static void
+vm_error_invalid_address (void)
+{
+ vm_error ("VM: Invalid program address", SCM_UNDEFINED);
+}
+#endif
+
+#if VM_CHECK_OBJECT
+static void
+vm_error_object ()
+{
+ vm_error ("VM: Invalid object table access", SCM_UNDEFINED);
+}
+#endif
+
+#if VM_CHECK_FREE_VARIABLES
+static void
+vm_error_free_variable ()
+{
+ vm_error ("VM: Invalid free variable access", SCM_UNDEFINED);
+}
+#endif
+
+\f
+
+static SCM boot_continuation;
+
\f
/*
* VM
{
if (SCM_LIKELY (scm_is_symbol (what)))
{
- if (SCM_LIKELY (scm_module_system_booted_p
- && scm_is_true (program_module)))
- /* might longjmp */
+ if (scm_is_true (program_module))
return scm_module_lookup (program_module, what);
else
- {
- SCM v = scm_sym2var (what, SCM_BOOL_F, SCM_BOOL_F);
- if (scm_is_false (v))
- scm_misc_error (NULL, "unbound variable: ~S", scm_list_1 (what));
- else
- return v;
- }
+ return scm_module_lookup (scm_the_root_module (), what);
}
else
{
}
}
+#define VM_MIN_STACK_SIZE (1024)
#define VM_DEFAULT_STACK_SIZE (64 * 1024)
+static size_t vm_stack_size = VM_DEFAULT_STACK_SIZE;
+
+static void
+initialize_default_stack_size (void)
+{
+ int size = scm_getenv_int ("GUILE_STACK_SIZE", vm_stack_size);
+ if (size >= VM_MIN_STACK_SIZE)
+ vm_stack_size = size;
+}
#define VM_NAME vm_regular_engine
#define FUNC_NAME "vm-regular-engine"
vp = scm_gc_malloc (sizeof (struct scm_vm), "vm");
- vp->stack_size = VM_DEFAULT_STACK_SIZE;
+ vp->stack_size= vm_stack_size;
#ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN
vp->stack_base = (SCM *)
vp->ip = NULL;
vp->sp = vp->stack_base - 1;
vp->fp = NULL;
- vp->engine = SCM_VM_DEBUG_ENGINE;
+ vp->engine = vm_default_engine;
vp->trace_level = 0;
for (i = 0; i < SCM_VM_NUM_HOOKS; i++)
vp->hooks[i] = SCM_BOOL_F;
scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs)
{
struct scm_vm *vp = SCM_VM_DATA (vm);
+ SCM_CHECK_STACK;
return vm_engines[vp->engine](vm, program, argv, nargs);
}
-SCM_DEFINE (scm_vm_apply, "vm-apply", 3, 0, 0,
- (SCM vm, SCM program, SCM args),
- "")
-#define FUNC_NAME s_scm_vm_apply
-{
- SCM *argv;
- int i, nargs;
-
- SCM_VALIDATE_VM (1, vm);
- SCM_VALIDATE_PROC (2, program);
-
- nargs = scm_ilength (args);
- if (SCM_UNLIKELY (nargs < 0))
- scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list");
-
- argv = alloca(nargs * sizeof(SCM));
- for (i = 0; i < nargs; i++)
- {
- argv[i] = SCM_CAR (args);
- args = SCM_CDR (args);
- }
-
- return scm_c_vm_run (vm, program, argv, nargs);
-}
-#undef FUNC_NAME
-
/* Scheme interface */
-/* Return T's VM. */
-static inline SCM
-thread_vm (scm_i_thread *t)
-{
- if (SCM_UNLIKELY (scm_is_false (t->vm)))
- t->vm = make_vm ();
-
- return t->vm;
-}
-
-SCM_DEFINE (scm_thread_vm, "thread-vm", 1, 0, 0,
- (SCM thread),
- "Return @var{thread}'s VM.")
-#define FUNC_NAME s_scm_thread_vm
-{
- SCM_VALIDATE_THREAD (1, thread);
-
- return thread_vm (SCM_I_THREAD_DATA (thread));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_set_thread_vm_x, "set-thread-vm!", 2, 0, 0,
- (SCM thread, SCM vm),
- "Set @var{thread}'s VM to @var{vm}. Warning: Code being\n"
- "executed by @var{thread}'s current VM won't automatically\n"
- "switch to @var{vm}.")
-#define FUNC_NAME s_scm_set_thread_vm_x
-{
- scm_i_thread *t;
-
- SCM_VALIDATE_THREAD (1, thread);
- SCM_VALIDATE_VM (2, vm);
-
- t = SCM_I_THREAD_DATA (thread);
- t->vm = vm;
-
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0,
(void),
"Return the current thread's VM.")
#define FUNC_NAME s_scm_the_vm
{
- return thread_vm (SCM_I_CURRENT_THREAD);
+ scm_i_thread *t = SCM_I_CURRENT_THREAD;
+
+ if (SCM_UNLIKELY (scm_is_false (t->vm)))
+ t->vm = make_vm ();
+
+ return t->vm;
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_vm_ip
{
SCM_VALIDATE_VM (1, vm);
- return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip);
+ return scm_from_unsigned_integer ((scm_t_bits) SCM_VM_DATA (vm)->ip);
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_vm_sp
{
SCM_VALIDATE_VM (1, vm);
- return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp);
+ return scm_from_unsigned_integer ((scm_t_bits) SCM_VM_DATA (vm)->sp);
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_vm_fp
{
SCM_VALIDATE_VM (1, vm);
- return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp);
+ return scm_from_unsigned_integer ((scm_t_bits) SCM_VM_DATA (vm)->fp);
}
#undef FUNC_NAME
#undef FUNC_NAME
\f
+/*
+ * VM engines
+ */
+
+static int
+symbol_to_vm_engine (SCM engine, const char *FUNC_NAME)
+{
+ if (scm_is_eq (engine, sym_regular))
+ return SCM_VM_REGULAR_ENGINE;
+ else if (scm_is_eq (engine, sym_debug))
+ return SCM_VM_DEBUG_ENGINE;
+ else
+ SCM_MISC_ERROR ("Unknown VM engine: ~a", scm_list_1 (engine));
+}
+
+static SCM
+vm_engine_to_symbol (int engine, const char *FUNC_NAME)
+{
+ switch (engine)
+ {
+ case SCM_VM_REGULAR_ENGINE:
+ return sym_regular;
+ case SCM_VM_DEBUG_ENGINE:
+ return sym_debug;
+ default:
+ /* ? */
+ SCM_MISC_ERROR ("Unknown VM engine: ~a",
+ scm_list_1 (scm_from_int (engine)));
+ }
+}
+
+SCM_DEFINE (scm_vm_engine, "vm-engine", 1, 0, 0,
+ (SCM vm),
+ "")
+#define FUNC_NAME s_scm_vm_engine
+{
+ SCM_VALIDATE_VM (1, vm);
+ return vm_engine_to_symbol (SCM_VM_DATA (vm)->engine, FUNC_NAME);
+}
+#undef FUNC_NAME
+
+void
+scm_c_set_vm_engine_x (SCM vm, int engine)
+#define FUNC_NAME "set-vm-engine!"
+{
+ SCM_VALIDATE_VM (1, vm);
+
+ if (engine < 0 || engine >= SCM_VM_NUM_ENGINES)
+ SCM_MISC_ERROR ("Unknown VM engine: ~a",
+ scm_list_1 (scm_from_int (engine)));
+
+ SCM_VM_DATA (vm)->engine = engine;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_set_vm_engine_x, "set-vm-engine!", 2, 0, 0,
+ (SCM vm, SCM engine),
+ "")
+#define FUNC_NAME s_scm_set_vm_engine_x
+{
+ scm_c_set_vm_engine_x (vm, symbol_to_vm_engine (engine, FUNC_NAME));
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+void
+scm_c_set_default_vm_engine_x (int engine)
+#define FUNC_NAME "set-default-vm-engine!"
+{
+ if (engine < 0 || engine >= SCM_VM_NUM_ENGINES)
+ SCM_MISC_ERROR ("Unknown VM engine: ~a",
+ scm_list_1 (scm_from_int (engine)));
+
+ vm_default_engine = engine;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_set_default_vm_engine_x, "set-default-vm-engine!", 1, 0, 0,
+ (SCM engine),
+ "")
+#define FUNC_NAME s_scm_set_default_vm_engine_x
+{
+ scm_c_set_default_vm_engine_x (symbol_to_vm_engine (engine, FUNC_NAME));
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+static void reinstate_vm (SCM vm)
+{
+ scm_i_thread *t = SCM_I_CURRENT_THREAD;
+ t->vm = vm;
+}
+
+SCM_DEFINE (scm_call_with_vm, "call-with-vm", 2, 0, 1,
+ (SCM vm, SCM proc, SCM args),
+ "Apply @var{proc} to @var{args} in a dynamic extent in which\n"
+ "@var{vm} is the current VM.\n\n"
+ "As an implementation restriction, if @var{vm} is not the same\n"
+ "as the current thread's VM, continuations captured within the\n"
+ "call to @var{proc} may not be reinstated once control leaves\n"
+ "@var{proc}.")
+#define FUNC_NAME s_scm_call_with_vm
+{
+ SCM prev_vm, ret;
+ SCM *argv;
+ int i, nargs;
+ scm_t_wind_flags flags;
+ scm_i_thread *t = SCM_I_CURRENT_THREAD;
+
+ SCM_VALIDATE_VM (1, vm);
+ SCM_VALIDATE_PROC (2, proc);
+
+ nargs = scm_ilength (args);
+ if (SCM_UNLIKELY (nargs < 0))
+ scm_wrong_type_arg_msg (FUNC_NAME, 3, args, "list");
+
+ argv = alloca (nargs * sizeof(SCM));
+ for (i = 0; i < nargs; i++)
+ {
+ argv[i] = SCM_CAR (args);
+ args = SCM_CDR (args);
+ }
+
+ prev_vm = t->vm;
+
+ /* Reentry can happen via invokation of a saved continuation, but
+ continuations only save the state of the VM that they are in at
+ capture-time, which might be different from this one. So, in the
+ case that the VMs are different, set up a non-rewindable frame to
+ prevent reinstating an incomplete continuation. */
+ flags = scm_is_eq (prev_vm, vm) ? 0 : SCM_F_WIND_EXPLICITLY;
+ if (flags)
+ {
+ scm_dynwind_begin (0);
+ scm_dynwind_unwind_handler_with_scm (reinstate_vm, prev_vm, flags);
+ t->vm = vm;
+ }
+
+ ret = scm_c_vm_run (vm, proc, argv, nargs);
+
+ if (flags)
+ scm_dynwind_end ();
+
+ return ret;
+}
+#undef FUNC_NAME
+
+\f
/*
* Initialize
*/
return scm_c_vm_run (scm_the_vm (), program, NULL, 0);
}
+
+static SCM
+make_boot_program (void)
+{
+ struct scm_objcode *bp;
+ size_t bp_size;
+ SCM u8vec, ret;
+
+ const scm_t_uint8 text[] = {
+ scm_op_make_int8_1,
+ scm_op_halt
+ };
+
+ bp_size = sizeof (struct scm_objcode) + sizeof (text);
+ bp = scm_gc_malloc_pointerless (bp_size, "boot-program");
+ memcpy (SCM_C_OBJCODE_BASE (bp), text, sizeof (text));
+ bp->len = sizeof(text);
+ bp->metalen = 0;
+
+ u8vec = scm_c_take_gc_bytevector ((scm_t_int8*)bp, bp_size);
+ ret = scm_make_program (scm_bytecode_to_native_objcode (u8vec),
+ SCM_BOOL_F, SCM_BOOL_F);
+ SCM_SET_CELL_WORD_0 (ret, (SCM_CELL_WORD_0 (ret) | SCM_F_PROGRAM_IS_BOOT));
+
+ return ret;
+}
+
void
scm_bootstrap_vm (void)
{
"scm_init_vm",
(scm_t_extension_init_func)scm_init_vm, NULL);
- sym_vm_run = scm_from_locale_symbol ("vm-run");
- sym_vm_error = scm_from_locale_symbol ("vm-error");
- sym_keyword_argument_error = scm_from_locale_symbol ("keyword-argument-error");
- sym_debug = scm_from_locale_symbol ("debug");
+ initialize_default_stack_size ();
+
+ sym_vm_run = scm_from_latin1_symbol ("vm-run");
+ sym_vm_error = scm_from_latin1_symbol ("vm-error");
+ sym_keyword_argument_error = scm_from_latin1_symbol ("keyword-argument-error");
+ sym_regular = scm_from_latin1_symbol ("regular");
+ sym_debug = scm_from_latin1_symbol ("debug");
+
+ boot_continuation = make_boot_program ();
#ifdef VM_ENABLE_PRECISE_STACK_GC_SCAN
vm_stack_gc_kind =