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30c06bfbb3
* libguile/vm.h (struct scm_vm_cont): Remove "sp" member; it's always the same as stack_bottom. * libguile/vm.c (scm_i_vm_cont_to_frame, scm_i_vm_capture_stack): (vm_return_to_continuation_inner): * libguile/stacks.c (scm_make_stack): * libguile/continuations.c (scm_i_continuation_to_frame): Adapt.
118 lines
4.5 KiB
C
118 lines
4.5 KiB
C
/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifndef _SCM_VM_H_
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#define _SCM_VM_H_
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#include <libguile.h>
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#include <libguile/programs.h>
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enum {
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SCM_VM_APPLY_HOOK,
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SCM_VM_PUSH_CONTINUATION_HOOK,
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SCM_VM_POP_CONTINUATION_HOOK,
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SCM_VM_NEXT_HOOK,
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SCM_VM_ABORT_CONTINUATION_HOOK,
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SCM_VM_NUM_HOOKS,
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};
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#define SCM_VM_REGULAR_ENGINE 0
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#define SCM_VM_DEBUG_ENGINE 1
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#define SCM_VM_NUM_ENGINES 2
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struct scm_vm {
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scm_t_uint32 *ip; /* instruction pointer */
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union scm_vm_stack_element *sp; /* stack pointer */
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union scm_vm_stack_element *fp; /* frame pointer */
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union scm_vm_stack_element *stack_limit; /* stack limit address */
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int trace_level; /* traces enabled if trace_level > 0 */
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union scm_vm_stack_element *sp_min_since_gc; /* deepest sp since last gc */
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size_t stack_size; /* stack size */
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union scm_vm_stack_element *stack_bottom; /* lowest address in allocated stack */
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union scm_vm_stack_element *stack_top; /* highest address in allocated stack */
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SCM overflow_handler_stack; /* alist of max-stack-size -> thunk */
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SCM hooks[SCM_VM_NUM_HOOKS]; /* hooks */
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int engine; /* which vm engine we're using */
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};
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SCM_INTERNAL struct scm_vm *scm_the_vm (void);
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SCM_API SCM scm_call_with_vm (SCM proc, SCM args);
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SCM_API SCM scm_call_with_stack_overflow_handler (SCM limit, SCM thunk,
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SCM handler);
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SCM_API SCM scm_vm_apply_hook (void);
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SCM_API SCM scm_vm_push_continuation_hook (void);
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SCM_API SCM scm_vm_pop_continuation_hook (void);
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SCM_API SCM scm_vm_abort_continuation_hook (void);
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SCM_API SCM scm_vm_next_hook (void);
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SCM_API SCM scm_vm_trace_level (void);
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SCM_API SCM scm_set_vm_trace_level_x (SCM level);
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SCM_API SCM scm_vm_engine (void);
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SCM_API SCM scm_set_vm_engine_x (SCM engine);
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SCM_API SCM scm_set_default_vm_engine_x (SCM engine);
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SCM_API void scm_c_set_vm_engine_x (int engine);
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SCM_API void scm_c_set_default_vm_engine_x (int engine);
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struct GC_ms_entry;
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SCM_INTERNAL struct GC_ms_entry * scm_i_vm_mark_stack (struct scm_vm *,
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struct GC_ms_entry *,
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struct GC_ms_entry *);
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SCM_INTERNAL void scm_i_vm_free_stack (struct scm_vm *vp);
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#define SCM_F_VM_CONT_PARTIAL 0x1
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#define SCM_F_VM_CONT_REWINDABLE 0x2
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struct scm_vm_cont {
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union scm_vm_stack_element *fp;
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scm_t_uint32 *ra;
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scm_t_ptrdiff stack_size;
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union scm_vm_stack_element *stack_bottom;
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scm_t_ptrdiff reloc;
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scm_t_dynstack *dynstack;
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scm_t_uint32 flags;
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};
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#define SCM_VM_CONT_P(OBJ) (SCM_HAS_TYP7 (OBJ, scm_tc7_vm_cont))
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#define SCM_VM_CONT_DATA(CONT) ((struct scm_vm_cont *) SCM_CELL_WORD_1 (CONT))
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#define SCM_VM_CONT_PARTIAL_P(CONT) (SCM_VM_CONT_DATA (CONT)->flags & SCM_F_VM_CONT_PARTIAL)
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#define SCM_VM_CONT_REWINDABLE_P(CONT) (SCM_VM_CONT_DATA (CONT)->flags & SCM_F_VM_CONT_REWINDABLE)
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SCM_API SCM scm_load_compiled_with_vm (SCM file);
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SCM_INTERNAL SCM scm_i_call_with_current_continuation (SCM proc);
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SCM_INTERNAL SCM scm_i_capture_current_stack (void);
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SCM_INTERNAL SCM scm_i_vm_capture_stack (union scm_vm_stack_element *stack_top,
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union scm_vm_stack_element *fp,
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union scm_vm_stack_element *sp,
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scm_t_uint32 *ra,
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scm_t_dynstack *dynstack,
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scm_t_uint32 flags);
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SCM_INTERNAL int scm_i_vm_cont_to_frame (SCM cont, struct scm_frame *frame);
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SCM_INTERNAL void scm_i_vm_cont_print (SCM x, SCM port,
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scm_print_state *pstate);
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SCM_INTERNAL void scm_bootstrap_vm (void);
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SCM_INTERNAL void scm_init_vm (void);
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#endif /* _SCM_VM_H_ */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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