1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-05-02 04:40:29 +02:00
guile/libguile/vm.h
Andy Wingo 14aa25e410 remove debug frames
* libguile/debug.h (scm_t_debug_frame): Remove this type, as it was
  internal to the old evaluator.
  (SCM_EVALFRAME, SCM_APPLYFRAME, SCM_VOIDFRAME, SCM_MACROEXPF)
  (SCM_TAILREC, SCM_TRACED_FRAME, SCM_ARGS_READY, SCM_DOVERFLOW)
  (SCM_MAX_FRAME_SIZE, SCM_FRAMETYPE)
  (SCM_EVALFRAMEP, SCM_APPLYFRAMEP, SCM_VOIDFRAMEP, SCM_MACROEXPFP)
  (SCM_TAILRECP, SCM_TRACED_FRAME_P, SCM_ARGS_READY_P, SCM_OVERFLOWP)
  (SCM_SET_MACROEXP, SCM_SET_TAILREC, SCM_SET_TRACED_FRAME)
  (SCM_SET_ARGSREADY, SCM_SET_OVERFLOW)
  (SCM_CLEAR_MACROEXP, SCM_CLEAR_TRACED_FRAME, SCM_CLEAR_ARGSREADY):
  Remove macro accessors to scm_t_debug_frame.
  (SCM_DEBUGOBJP, SCM_DEBUGOBJ_FRAME, SCM_SET_DEBUGOBJ_FRAME):
  (scm_debug_object_p, scm_make_debugobj): Remove debugobj accessors.
  (scm_i_unmemoize_expr): Remove unused declaration.

* libguile/debug.c (scm_debug_options): No more max limit on frame
  sizes.
  (scm_start_stack): Just call out to scm_vm_call_with_new_stack.
  (scm_debug_object_p, scm_make_debugobj, scm_init_debug): No more
  debugobj smob type.

* libguile/deprecated.h:
* libguile/deprecated.c (scm_i_deprecated_last_debug_frame)
  (scm_last_debug_frame): Remove deprecated debug-frame bits.

* libguile/stacks.c (scm_make_stack): Rework this function and its
  dependents to only walk VM frames.
  (scm_stack_id): Call out to the holder of the VM frame in question,
  which should be a VM or a VM continuation, for the stack ID. Currently
  this bit is stubbed out.
  (scm_last_stack_frame): Removed. It seems this is mainly useful for a
  debugger, and we need to rewrite the debugger to work on the Scheme
  level.

* test-suite/tests/continuations.test ("continuations"): Remove test for
  last-stack-frame.

* libguile/continuations.h (struct scm_t_contregs):
* libguile/continuations.c (scm_make_continuation):
  (copy_stack_and_call, scm_i_with_continuation_barrier): No need to
  save and restore debug frames.

* libguile/threads.h (scm_i_thread): Don't track debug frames.
  (scm_i_last_debug_frame, scm_i_set_last_debug_frame): Remove macro
  accessors.

* libguile/threads.c (guilify_self_1): Don't track debug frames.

* libguile/throw.c: No need to track debug frames in a jmpbuf.

* libguile/vm-engine.c (vm_engine, VM_PUSH_DEBUG_FRAMES): Don't push
  debug frames.

* libguile/vm.h:
* libguile/vm.c (scm_vm_call_with_new_stack): New function. Currently
  stubbed out though.
2009-12-03 11:03:39 +01:00

117 lines
3.7 KiB
C

/* Copyright (C) 2001, 2009 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
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* 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.
*
* 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
*/
#ifndef _SCM_VM_H_
#define _SCM_VM_H_
#include <libguile.h>
#include <libguile/programs.h>
#define SCM_VM_BOOT_HOOK 0
#define SCM_VM_HALT_HOOK 1
#define SCM_VM_NEXT_HOOK 2
#define SCM_VM_BREAK_HOOK 3
#define SCM_VM_ENTER_HOOK 4
#define SCM_VM_APPLY_HOOK 5
#define SCM_VM_EXIT_HOOK 6
#define SCM_VM_RETURN_HOOK 7
#define SCM_VM_NUM_HOOKS 8
struct scm_vm;
typedef SCM (*scm_t_vm_engine) (struct scm_vm *vp, SCM program, SCM *argv, int nargs);
#define SCM_VM_REGULAR_ENGINE 0
#define SCM_VM_DEBUG_ENGINE 1
#define SCM_VM_NUM_ENGINES 2
struct scm_vm {
scm_t_uint8 *ip; /* instruction pointer */
SCM *sp; /* stack pointer */
SCM *fp; /* frame pointer */
size_t stack_size; /* stack size */
SCM *stack_base; /* stack base address */
SCM *stack_limit; /* stack limit address */
int engine; /* which vm engine we're using */
SCM hooks[SCM_VM_NUM_HOOKS]; /* hooks */
SCM options; /* options */
unsigned long time; /* time spent */
unsigned long clock; /* bogos clock */
SCM trace_frame; /* a frame being traced */
};
SCM_API SCM scm_the_vm_fluid;
#define SCM_VM_P(x) SCM_SMOB_PREDICATE (scm_tc16_vm, x)
#define SCM_VM_DATA(vm) ((struct scm_vm *) SCM_SMOB_DATA (vm))
#define SCM_VALIDATE_VM(pos,x) SCM_MAKE_VALIDATE (pos, x, VM_P)
SCM_API SCM scm_the_vm ();
SCM_API SCM scm_make_vm (void);
SCM_API SCM scm_vm_apply (SCM vm, SCM program, SCM args);
SCM_API SCM scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs);
SCM_API SCM scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id);
SCM_API SCM scm_vm_option_ref (SCM vm, SCM key);
SCM_API SCM scm_vm_option_set_x (SCM vm, SCM key, SCM val);
SCM_API SCM scm_vm_version (void);
SCM_API SCM scm_the_vm (void);
SCM_API SCM scm_vm_p (SCM obj);
SCM_API SCM scm_vm_ip (SCM vm);
SCM_API SCM scm_vm_sp (SCM vm);
SCM_API SCM scm_vm_fp (SCM vm);
SCM_API SCM scm_vm_boot_hook (SCM vm);
SCM_API SCM scm_vm_halt_hook (SCM vm);
SCM_API SCM scm_vm_next_hook (SCM vm);
SCM_API SCM scm_vm_break_hook (SCM vm);
SCM_API SCM scm_vm_enter_hook (SCM vm);
SCM_API SCM scm_vm_apply_hook (SCM vm);
SCM_API SCM scm_vm_exit_hook (SCM vm);
SCM_API SCM scm_vm_return_hook (SCM vm);
SCM_API SCM scm_vm_option (SCM vm, SCM key);
SCM_API SCM scm_set_vm_option_x (SCM vm, SCM key, SCM val);
SCM_API SCM scm_vm_stats (SCM vm);
SCM_API SCM scm_vm_trace_frame (SCM vm);
struct scm_vm_cont {
scm_t_uint8 *ip;
SCM *sp;
SCM *fp;
scm_t_ptrdiff stack_size;
SCM *stack_base;
scm_t_ptrdiff reloc;
};
SCM_API scm_t_bits scm_tc16_vm_cont;
#define SCM_VM_CONT_P(OBJ) SCM_SMOB_PREDICATE (scm_tc16_vm_cont, OBJ)
#define SCM_VM_CONT_DATA(CONT) ((struct scm_vm_cont *) SCM_CELL_WORD_1 (CONT))
SCM_API SCM scm_vm_capture_continuations (void);
SCM_API void scm_vm_reinstate_continuations (SCM conts);
SCM_API SCM scm_load_compiled_with_vm (SCM file);
SCM_INTERNAL void scm_init_vm (void);
#endif /* _SCM_VM_H_ */
/*
Local Variables:
c-file-style: "gnu"
End:
*/