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2fb924f64f
* libguile/tags.h (scm_tc7_program):
* libguile/programs.h: Programs now have their own tc7 code. Fix up the
macros appropriately.
* libguile/programs.c: Remove smobby bits, leaving marking, printing,
and application for other parts of Guile.
* libguile/debug.c (scm_procedure_source):
* libguile/eval.c (scm_trampoline_0, scm_trampoline_1)
(scm_trampoline_2): Add cases for tc7_program.
* libguile/eval.i.c (CEVAL, SCM_APPLY):
* libguile/evalext.c (scm_self_evaluating_p):
* libguile/gc-card.c (scm_i_sweep_card, scm_i_tag_name):
* libguile/gc-mark.c (1):
* libguile/print.c (iprin1):
* libguile/procs.c (scm_procedure_p, scm_thunk_p)
* libguile/vm-i-system.c (make-closure): Adapt to new procedure
representation.
* libguile/procprop.c (scm_i_procedure_arity): Do the right thing for
programs.
* test-suite/tests/procprop.test ("procedure-arity"): Arity test now
succeeds.
* libguile/goops.c (scm_class_of): Programs now belong to the class
<procedure>, not a smob class.
* libguile/vm.h (struct vm, struct vm_cont):
* libguile/vm-engine.c (vm_engine):
* libguile/frames.h (SCM_FRAME_BYTE_CAST, struct vm_frame):
* libguile/frames.c (scm_c_make_vm_frame): Fix usages of scm_byte_t,
changing them to scm_t_uint8.
126 lines
4.2 KiB
C
126 lines
4.2 KiB
C
/* Copyright (C) 2001, 2009 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_FRAMES_H_
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#define _SCM_FRAMES_H_
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#include <libguile.h>
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#include "programs.h"
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/*
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* VM frames
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*/
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/* VM Frame Layout
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---------------
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| ... |
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| Intermed. val. 0 | <- fp + bp->nargs + bp->nlocs = SCM_FRAME_UPPER_ADDRESS (fp)
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+==================+
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| Local variable 1 |
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| Local variable 0 | <- fp + bp->nargs
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| Argument 1 |
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| Argument 0 | <- fp
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| Program | <- fp - 1
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+------------------+
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| Return address |
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| MV return address|
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| Dynamic link | <- fp - 4 = SCM_FRAME_DATA_ADDRESS (fp) = SCM_FRAME_LOWER_ADDRESS (fp)
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+==================+
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| |
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As can be inferred from this drawing, it is assumed that
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`sizeof (SCM *) == sizeof (SCM)', since pointers (the `link' parts) are
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assumed to be as long as SCM objects. */
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#define SCM_FRAME_DATA_ADDRESS(fp) (fp - 4)
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#define SCM_FRAME_UPPER_ADDRESS(fp) \
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(fp \
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+ SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nargs \
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+ SCM_PROGRAM_DATA (SCM_FRAME_PROGRAM (fp))->nlocs)
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#define SCM_FRAME_LOWER_ADDRESS(fp) (fp - 4)
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#define SCM_FRAME_BYTE_CAST(x) ((scm_t_uint8 *) SCM_UNPACK (x))
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#define SCM_FRAME_STACK_CAST(x) ((SCM *) SCM_UNPACK (x))
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#define SCM_FRAME_RETURN_ADDRESS(fp) \
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(SCM_FRAME_BYTE_CAST (SCM_FRAME_DATA_ADDRESS (fp)[2]))
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#define SCM_FRAME_SET_RETURN_ADDRESS(fp, ra) \
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((SCM_FRAME_DATA_ADDRESS (fp)[2])) = (SCM)(ra);
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#define SCM_FRAME_MV_RETURN_ADDRESS(fp) \
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(SCM_FRAME_BYTE_CAST (SCM_FRAME_DATA_ADDRESS (fp)[1]))
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#define SCM_FRAME_SET_MV_RETURN_ADDRESS(fp, mvra) \
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((SCM_FRAME_DATA_ADDRESS (fp)[1])) = (SCM)(mvra);
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#define SCM_FRAME_DYNAMIC_LINK(fp) \
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(SCM_FRAME_STACK_CAST (SCM_FRAME_DATA_ADDRESS (fp)[0]))
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#define SCM_FRAME_SET_DYNAMIC_LINK(fp, dl) \
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((SCM_FRAME_DATA_ADDRESS (fp)[0])) = (SCM)(dl);
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#define SCM_FRAME_VARIABLE(fp,i) fp[i]
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#define SCM_FRAME_PROGRAM(fp) fp[-1]
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/*
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* Heap frames
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*/
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SCM_API scm_t_bits scm_tc16_vm_frame;
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struct scm_vm_frame
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{
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SCM stack_holder;
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SCM *fp;
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SCM *sp;
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scm_t_uint8 *ip;
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scm_t_ptrdiff offset;
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};
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#define SCM_VM_FRAME_P(x) SCM_SMOB_PREDICATE (scm_tc16_vm_frame, x)
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#define SCM_VM_FRAME_DATA(x) ((struct scm_vm_frame*)SCM_SMOB_DATA (x))
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#define SCM_VM_FRAME_STACK_HOLDER(f) SCM_VM_FRAME_DATA(f)->stack_holder
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#define SCM_VM_FRAME_FP(f) SCM_VM_FRAME_DATA(f)->fp
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#define SCM_VM_FRAME_SP(f) SCM_VM_FRAME_DATA(f)->sp
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#define SCM_VM_FRAME_IP(f) SCM_VM_FRAME_DATA(f)->ip
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#define SCM_VM_FRAME_OFFSET(f) SCM_VM_FRAME_DATA(f)->offset
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#define SCM_VALIDATE_VM_FRAME(p,x) SCM_MAKE_VALIDATE (p, x, VM_FRAME_P)
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SCM_API SCM scm_c_make_vm_frame (SCM stack_holder, SCM *fp, SCM *sp,
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scm_t_uint8 *ip, scm_t_ptrdiff offset);
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SCM_API SCM scm_vm_frame_p (SCM obj);
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SCM_API SCM scm_vm_frame_program (SCM frame);
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SCM_API SCM scm_vm_frame_arguments (SCM frame);
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SCM_API SCM scm_vm_frame_source (SCM frame);
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SCM_API SCM scm_vm_frame_local_ref (SCM frame, SCM index);
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SCM_API SCM scm_vm_frame_local_set_x (SCM frame, SCM index, SCM val);
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SCM_API SCM scm_vm_frame_return_address (SCM frame);
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SCM_API SCM scm_vm_frame_mv_return_address (SCM frame);
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SCM_API SCM scm_vm_frame_dynamic_link (SCM frame);
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SCM_API SCM scm_vm_frame_stack (SCM frame);
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SCM_API SCM scm_c_vm_frame_prev (SCM frame);
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SCM_INTERNAL void scm_bootstrap_frames (void);
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SCM_INTERNAL void scm_init_frames (void);
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#endif /* _SCM_FRAMES_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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