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guile/libguile/vm.c
Andy Wingo 53e28ed9b2 static opcodes; refactor program/objcode division; use new assembly pipeline 
* gdbinit: Untested attempts to get the stack fondling macros to deal
  with the new program representation.

* libguile/frames.c (scm_vm_frame_arguments, scm_vm_frame_source)
  (scm_vm_frame_local_ref, scm_vm_frame_local_set_x): SCM_PROGRAM_DATA is
  a struct scm_objcode*.

* libguile/instructions.h:
* libguile/instructions.c: Hide the instruction table and the struct
  scm_instruction structure; all access to instructions now goes through
  procedures. This is because instructions are no longer in a packed
  array indexed by opcode. Also, declare a mask that all instructions
  should fit in.

* libguile/objcodes.h:
* libguile/objcodes.c: Rewrite so that object code directly maps its
  arity and length from its bytecode. This makes it unnecessary to keep
  this information in programs, allowing programs to be simple conses
  between the code (objcodes) and data (the object table and the closure
  variables).

* libguile/programs.c (scm_make_program): Rework so that make-program
  takes objcode, an object table, and externals as arguments. It's much
  clearer this way, and we avoid malloc().

* libguile/stacks.c (is_vm_bootstrap_frame): Update for program/objcode
  changes.

* libguile/vm-engine.c (vm_run): Initialize the jump table on the first
  run, with the opcodes declared in the instruction sources, and with bad
  instructions raising an error instead of wandering off into the
  Unknown.

* libguile/vm-engine.h (FETCH_LENGTH): Always represent lengths as 3
  bytes. The old code was too error-prone.
  (NEXT_JUMP): Mask the instruction with SCM_VM_INSTRUCTION_MASK.
  (NEW_FRAME): Update for program/objcode changes.

* libguile/vm-expand.h (VM_DEFINE_FUNCTION, VM_DEFINE_INSTRUCTION)
  (VM_DEFINE_LOADER): Update so that we explicitly specify opcodes, so
  that we have a stable bytecode API.

* libguile/vm-i-loader.c: Update license to LGPLv2+. Explicitly declare
  opcodes.
  (load-integer): Use an int instead of a long as the accumulator; still
  need to revisit this code at some point, I think.
  (load-program): Simplify, thankfully!! Just creates the objcode slice
  and rolls with it.

* libguile/vm-i-scheme.c: Number the opcodes explicitly.

* libguile/vm-i-system.c: Update license to LGPLv2+. Explicitly declare
  opcodes.
  (make-closure): Update for new program API.

* libguile/vm.c (vm_make_boot_program): Update for new program/objcode
  API. Still a bit ugly.
  (scm_load_compiled_with_vm): Update for new program/objcode API.

* module/language/assembly.scm (byte-length): Fix byte-length calculation
  for loaders, and load-program.
  (code-pack, code-unpack): Start to move things from (system vm conv)
  here.
  (object->code, code->object): More things from conv.scm.

* module/language/glil.scm (<glil-program>): Add a new field,
  closure-level.
  (make-glil-program, compute-closure-level): Calculate the "closure
  level" when making a glil program. This is the maximum depth of
  external binding refs in this closure.
  (unparse-glil): Fix label serialization.

* module/language/glil/compile-assembly.scm (make-meta): Prepend #f for
  the meta's object table, though maybe in the future we can avoid
  creating assembly in the first place.
  (assoc-ref-or-acons, object-index-and-alist): GRRR! Caught again by the
  different sets of arguments to assoc and assoc-ref!
  (glil->assembly): Attempt to make the <glil-program> case more
  readable, and fix the bugs. Sorry I don't know how to comment this
  change any more than this.
  (glil->assembly): For <glil-module> serialize the whole key, not just
  the name.
  (dump-object): subprogram-code is already a list. Serialize integers as
  strings, not u8vectors. Fix the order of lists and vectors.

* module/language/glil/spec.scm (glil): Switch orders, so we prefer glil
  -> assembly -> objcode. Actually glil->objcode doesn't work any more,
  needs to be removed I think.

* module/language/objcode/spec.scm (objcode->value):
  s/objcode->program/make-program/.

* module/language/scheme/inline.scm: Add acons inline.

* module/system/vm/conv.scm (make-byte-decoder): Skip the first 8 bytes,
  they are header. Handle subprograms properly. Still needs help though.
  (decode-length): Lengths are always 3 bytes now.

* module/system/vm/disasm.scm: Superficial changes to keep things
  working. I'd like to fix this better in the future.

* module/system/vm/frame.scm (bootstrap-frame?): Fixes for
  program-bytecode.

* module/system/vm/program.scm: Export make-program. It's program-objcode
  now, no more program-bytecode.

* module/system/vm/vm.scm (vm-load): Use make-program.

* test-suite/tests/asm-to-bytecode.test: New test, very minimal.

* module/system/vm/objcode.scm: Export word-size, byte-order, and
  write-objcode.
2009-01-29 21:12:00 +01:00

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/* 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.
*
* 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 exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* 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. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include "vm-bootstrap.h"
#include "frames.h"
#include "instructions.h"
#include "objcodes.h"
#include "programs.h"
#include "lang.h" /* NULL_OR_NIL_P */
#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 ()); \
}
/* 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. */
#define VM_ENABLE_ASSERTIONS
/* We can add a mode that ensures that all stack items above the stack pointer
are NULL. This is useful for checking the internal consistency of the VM's
assumptions and its operators, but isn't necessary for normal operation. It
will ensure that assertions are enabled. Slows down the VM by about 30%. */
/* #define VM_ENABLE_STACK_NULLING */
/* #define VM_ENABLE_PARANOID_ASSERTIONS */
#if defined (VM_ENABLE_STACK_NULLING) && !defined (VM_ENABLE_ASSERTIONS)
#define VM_ENABLE_ASSERTIONS
#endif
/*
* VM Continuation
*/
scm_t_bits scm_tc16_vm_cont;
static void
vm_mark_stack (SCM *base, scm_t_ptrdiff size, SCM *fp, scm_t_ptrdiff reloc)
{
SCM *sp, *upper, *lower;
sp = base + size - 1;
while (sp > base && fp)
{
upper = SCM_FRAME_UPPER_ADDRESS (fp);
lower = SCM_FRAME_LOWER_ADDRESS (fp);
for (; sp >= upper; sp--)
if (SCM_NIMP (*sp))
{
if (scm_in_heap_p (*sp))
scm_gc_mark (*sp);
else
fprintf (stderr, "BADNESS: crap on the stack: %p\n", *sp);
}
/* skip ra, mvra */
sp -= 2;
/* update fp from the dynamic link */
fp = (SCM*)*sp-- + reloc;
/* mark from the el down to the lower address */
for (; sp >= lower; sp--)
if (*sp && SCM_NIMP (*sp))
scm_gc_mark (*sp);
}
}
static SCM
vm_cont_mark (SCM obj)
{
struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj);
if (p->stack_size)
vm_mark_stack (p->stack_base, p->stack_size, p->fp + p->reloc, p->reloc);
return SCM_BOOL_F;
}
static scm_sizet
vm_cont_free (SCM obj)
{
struct scm_vm_cont *p = SCM_VM_CONT_DATA (obj);
scm_gc_free (p->stack_base, p->stack_size * sizeof (SCM), "stack-base");
scm_gc_free (p, sizeof (struct scm_vm), "vm");
return 0;
}
static SCM
capture_vm_cont (struct scm_vm *vp)
{
struct scm_vm_cont *p = scm_gc_malloc (sizeof (*p), "capture_vm_cont");
p->stack_size = vp->sp - vp->stack_base + 1;
p->stack_base = scm_gc_malloc (p->stack_size * sizeof (SCM),
"capture_vm_cont");
#ifdef VM_ENABLE_STACK_NULLING
if (vp->sp >= vp->stack_base)
if (!vp->sp[0] || vp->sp[1])
abort ();
memset (p->stack_base, 0, p->stack_size * sizeof (SCM));
#endif
p->ip = vp->ip;
p->sp = vp->sp;
p->fp = vp->fp;
memcpy (p->stack_base, vp->stack_base, p->stack_size * sizeof (SCM));
p->reloc = p->stack_base - vp->stack_base;
SCM_RETURN_NEWSMOB (scm_tc16_vm_cont, p);
}
static void
reinstate_vm_cont (struct scm_vm *vp, SCM cont)
{
struct scm_vm_cont *p = SCM_VM_CONT_DATA (cont);
if (vp->stack_size < p->stack_size)
{
/* puts ("FIXME: Need to expand"); */
abort ();
}
#ifdef VM_ENABLE_STACK_NULLING
{
scm_t_ptrdiff nzero = (vp->sp - p->sp);
if (nzero > 0)
memset (vp->stack_base + p->stack_size, 0, nzero * sizeof (SCM));
/* actually nzero should always be negative, because vm_reset_stack will
unwind the stack to some point *below* this continuation */
}
#endif
vp->ip = p->ip;
vp->sp = p->sp;
vp->fp = p->fp;
memcpy (vp->stack_base, p->stack_base, p->stack_size * sizeof (SCM));
}
/* In theory, a number of vm instances can be active in the call trace, and we
only want to reify the continuations of those in the current continuation
root. I don't see a nice way to do this -- ideally it would involve dynwinds,
and previous values of the *the-vm* fluid within the current continuation
root. But we don't have access to continuation roots in the dynwind stack.
So, just punt for now -- take the current value of *the-vm*.
While I'm on the topic, ideally we could avoid copying the C stack if the
continuation root is inside VM code, and call/cc was invoked within that same
call to vm_run; but that's currently not implemented.
*/
SCM
scm_vm_capture_continuations (void)
{
SCM vm = scm_the_vm ();
return scm_acons (vm, capture_vm_cont (SCM_VM_DATA (vm)), SCM_EOL);
}
void
scm_vm_reinstate_continuations (SCM conts)
{
for (; conts != SCM_EOL; conts = SCM_CDR (conts))
reinstate_vm_cont (SCM_VM_DATA (SCM_CAAR (conts)), SCM_CDAR (conts));
}
struct vm_unwind_data
{
struct scm_vm *vp;
SCM *sp;
SCM *fp;
};
static void
vm_reset_stack (void *data)
{
struct vm_unwind_data *w = data;
struct scm_vm *vp = w->vp;
vp->sp = w->sp;
vp->fp = w->fp;
#ifdef VM_ENABLE_STACK_NULLING
memset (vp->sp + 1, 0, (vp->stack_size - (vp->sp + 1 - vp->stack_base)) * sizeof(SCM));
#endif
}
static void enfalsen_frame (void *p)
{
struct scm_vm *vp = p;
vp->trace_frame = SCM_BOOL_F;
}
static void
vm_dispatch_hook (SCM vm, SCM hook, SCM hook_args)
{
struct scm_vm *vp = SCM_VM_DATA (vm);
if (!SCM_FALSEP (vp->trace_frame))
return;
scm_dynwind_begin (0);
vp->trace_frame = scm_c_make_vm_frame (vm, vp->fp, vp->sp, vp->ip, 0);
scm_dynwind_unwind_handler (enfalsen_frame, vp, SCM_F_WIND_EXPLICITLY);
scm_c_run_hook (hook, hook_args);
scm_dynwind_end ();
}
/*
* VM Internal functions
*/
static SCM sym_vm_run;
static SCM sym_vm_error;
static SCM sym_debug;
static SCM make_u8vector (const scm_t_uint8 *bytes, size_t len)
{
scm_t_uint8 *new_bytes = scm_gc_malloc (len, "make-u8vector");
memcpy (new_bytes, bytes, len);
return scm_take_u8vector (new_bytes, len);
}
static SCM
vm_make_boot_program (long nargs)
{
scm_byte_t bytes[] = {0, 0, 0, 0,
0, 0, 0, 0,
scm_op_mv_call, 0, 0, 1, scm_op_make_int8_1, scm_op_halt};
((scm_t_uint32*)bytes)[1] = 6; /* set len in current endianness */
if (SCM_UNLIKELY (nargs > 255 || nargs < 0))
abort ();
bytes[9] = (scm_byte_t)nargs;
return scm_make_program (scm_bytecode_to_objcode (make_u8vector (bytes, sizeof(bytes))),
SCM_BOOL_F, SCM_EOL);
}
/*
* VM
*/
#define VM_DEFAULT_STACK_SIZE (16 * 1024)
#define VM_REGULAR_ENGINE 0
#define VM_DEBUG_ENGINE 1
#if 0
#define VM_NAME vm_regular_engine
#define VM_ENGINE VM_REGULAR_ENGINE
#include "vm-engine.c"
#undef VM_NAME
#undef VM_ENGINE
#endif
#define VM_NAME vm_debug_engine
#define VM_ENGINE VM_DEBUG_ENGINE
#include "vm-engine.c"
#undef VM_NAME
#undef VM_ENGINE
scm_t_bits scm_tc16_vm;
static SCM
make_vm (void)
#define FUNC_NAME "make_vm"
{
int i;
struct scm_vm *vp = scm_gc_malloc (sizeof (struct scm_vm), "vm");
vp->stack_size = VM_DEFAULT_STACK_SIZE;
vp->stack_base = scm_gc_malloc (vp->stack_size * sizeof (SCM),
"stack-base");
#ifdef VM_ENABLE_STACK_NULLING
memset (vp->stack_base, 0, vp->stack_size * sizeof (SCM));
#endif
vp->stack_limit = vp->stack_base + vp->stack_size - 3;
vp->ip = NULL;
vp->sp = vp->stack_base - 1;
vp->fp = NULL;
vp->time = 0;
vp->clock = 0;
vp->options = SCM_EOL;
for (i = 0; i < SCM_VM_NUM_HOOKS; i++)
vp->hooks[i] = SCM_BOOL_F;
vp->trace_frame = SCM_BOOL_F;
SCM_RETURN_NEWSMOB (scm_tc16_vm, vp);
}
#undef FUNC_NAME
static SCM
vm_mark (SCM obj)
{
int i;
struct scm_vm *vp = SCM_VM_DATA (obj);
#ifdef VM_ENABLE_STACK_NULLING
if (vp->sp >= vp->stack_base)
if (!vp->sp[0] || vp->sp[1])
abort ();
#endif
/* mark the stack, precisely */
vm_mark_stack (vp->stack_base, vp->sp + 1 - vp->stack_base, vp->fp, 0);
/* mark other objects */
for (i = 0; i < SCM_VM_NUM_HOOKS; i++)
scm_gc_mark (vp->hooks[i]);
scm_gc_mark (vp->trace_frame);
return vp->options;
}
static scm_sizet
vm_free (SCM obj)
{
struct scm_vm *vp = SCM_VM_DATA (obj);
scm_gc_free (vp->stack_base, vp->stack_size * sizeof (SCM),
"stack-base");
scm_gc_free (vp, sizeof (struct scm_vm), "vm");
return 0;
}
SCM
scm_vm_apply (SCM vm, SCM program, SCM args)
#define FUNC_NAME "scm_vm_apply"
{
SCM_VALIDATE_PROGRAM (1, program);
return vm_run (vm, program, args);
}
#undef FUNC_NAME
/* Scheme interface */
SCM_DEFINE (scm_vm_version, "vm-version", 0, 0, 0,
(void),
"")
#define FUNC_NAME s_scm_vm_version
{
return scm_from_locale_string (PACKAGE_VERSION);
}
#undef FUNC_NAME
SCM_DEFINE (scm_the_vm, "the-vm", 0, 0, 0,
(void),
"")
#define FUNC_NAME s_scm_the_vm
{
scm_i_thread *t = SCM_I_CURRENT_THREAD;
if (SCM_UNLIKELY (SCM_FALSEP ((t->vm))))
t->vm = make_vm ();
return t->vm;
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_p, "vm?", 1, 0, 0,
(SCM obj),
"")
#define FUNC_NAME s_scm_vm_p
{
return SCM_BOOL (SCM_VM_P (obj));
}
#undef FUNC_NAME
SCM_DEFINE (scm_make_vm, "make-vm", 0, 0, 0,
(void),
"")
#define FUNC_NAME s_scm_make_vm,
{
return make_vm ();
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_ip, "vm:ip", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_ip
{
SCM_VALIDATE_VM (1, vm);
return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->ip);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_sp, "vm:sp", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_sp
{
SCM_VALIDATE_VM (1, vm);
return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->sp);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_fp, "vm:fp", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_fp
{
SCM_VALIDATE_VM (1, vm);
return scm_from_ulong ((unsigned long) SCM_VM_DATA (vm)->fp);
}
#undef FUNC_NAME
#define VM_DEFINE_HOOK(n) \
{ \
struct scm_vm *vp; \
SCM_VALIDATE_VM (1, vm); \
vp = SCM_VM_DATA (vm); \
if (SCM_FALSEP (vp->hooks[n])) \
vp->hooks[n] = scm_make_hook (SCM_I_MAKINUM (1)); \
return vp->hooks[n]; \
}
SCM_DEFINE (scm_vm_boot_hook, "vm-boot-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_boot_hook
{
VM_DEFINE_HOOK (SCM_VM_BOOT_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_halt_hook, "vm-halt-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_halt_hook
{
VM_DEFINE_HOOK (SCM_VM_HALT_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_next_hook, "vm-next-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_next_hook
{
VM_DEFINE_HOOK (SCM_VM_NEXT_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_break_hook, "vm-break-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_break_hook
{
VM_DEFINE_HOOK (SCM_VM_BREAK_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_enter_hook, "vm-enter-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_enter_hook
{
VM_DEFINE_HOOK (SCM_VM_ENTER_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_apply_hook, "vm-apply-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_apply_hook
{
VM_DEFINE_HOOK (SCM_VM_APPLY_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_exit_hook, "vm-exit-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_exit_hook
{
VM_DEFINE_HOOK (SCM_VM_EXIT_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_return_hook, "vm-return-hook", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_return_hook
{
VM_DEFINE_HOOK (SCM_VM_RETURN_HOOK);
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_option, "vm-option", 2, 0, 0,
(SCM vm, SCM key),
"")
#define FUNC_NAME s_scm_vm_option
{
SCM_VALIDATE_VM (1, vm);
return scm_assq_ref (SCM_VM_DATA (vm)->options, key);
}
#undef FUNC_NAME
SCM_DEFINE (scm_set_vm_option_x, "set-vm-option!", 3, 0, 0,
(SCM vm, SCM key, SCM val),
"")
#define FUNC_NAME s_scm_set_vm_option_x
{
SCM_VALIDATE_VM (1, vm);
SCM_VM_DATA (vm)->options
= scm_assq_set_x (SCM_VM_DATA (vm)->options, key, val);
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_stats, "vm-stats", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_stats
{
SCM stats;
SCM_VALIDATE_VM (1, vm);
stats = scm_make_vector (SCM_I_MAKINUM (2), SCM_UNSPECIFIED);
scm_vector_set_x (stats, SCM_I_MAKINUM (0),
scm_from_ulong (SCM_VM_DATA (vm)->time));
scm_vector_set_x (stats, SCM_I_MAKINUM (1),
scm_from_ulong (SCM_VM_DATA (vm)->clock));
return stats;
}
#undef FUNC_NAME
SCM_DEFINE (scm_vm_trace_frame, "vm-trace-frame", 1, 0, 0,
(SCM vm),
"")
#define FUNC_NAME s_scm_vm_trace_frame
{
SCM_VALIDATE_VM (1, vm);
return SCM_VM_DATA (vm)->trace_frame;
}
#undef FUNC_NAME
/*
* Initialize
*/
SCM scm_load_compiled_with_vm (SCM file)
{
SCM program = scm_make_program (scm_load_objcode (file),
SCM_BOOL_F, SCM_EOL);
return vm_run (scm_the_vm (), program, SCM_EOL);
}
void
scm_bootstrap_vm (void)
{
static int strappage = 0;
if (strappage)
return;
scm_bootstrap_frames ();
scm_bootstrap_instructions ();
scm_bootstrap_objcodes ();
scm_bootstrap_programs ();
scm_tc16_vm_cont = scm_make_smob_type ("vm-cont", 0);
scm_set_smob_mark (scm_tc16_vm_cont, vm_cont_mark);
scm_set_smob_free (scm_tc16_vm_cont, vm_cont_free);
scm_tc16_vm = scm_make_smob_type ("vm", 0);
scm_set_smob_mark (scm_tc16_vm, vm_mark);
scm_set_smob_free (scm_tc16_vm, vm_free);
scm_set_smob_apply (scm_tc16_vm, scm_vm_apply, 1, 0, 1);
scm_c_define ("load-compiled",
scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
scm_load_compiled_with_vm));
sym_vm_run = scm_permanent_object (scm_from_locale_symbol ("vm-run"));
sym_vm_error = scm_permanent_object (scm_from_locale_symbol ("vm-error"));
sym_debug = scm_permanent_object (scm_from_locale_symbol ("debug"));
strappage = 1;
}
void
scm_init_vm (void)
{
scm_bootstrap_vm ();
#ifndef SCM_MAGIC_SNARFER
#include "vm.x"
#endif
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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