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b0ca878cae
* libguile/foreign.c: Convert to using RTL stubs. Because RTL code has
different GC characteristics than objcode -- it's mostly assumed that
RTL code will never go away -- we go ahead and pre-generate code for
100 arguments. This is actually less memory than the stack VM code,
and doesn't require any relocations at load-time: bonus! We'll cross
the >=100 args bridge if we ever come to it.
(get_foreign_stub_code) New function.
(scm_i_foreign_arity): New helper, like scm_i_primitive_arity.
(cif_to_procedure): Rework to make RTL programs.
* libguile/foreign.h: Declare scm_pointer_to_scm and
scm_scm_to_pointer. Declare new internal helpers.
* libguile/gsubr.c (create_subr): Refactor to set the flags when the
object is allocated.
* libguile/instructions.h: Define SCM_PACK_RTL_12_12.
* libguile/programs.c (scm_i_rtl_program_minimum_arity): Dispatch to
scm_i_foreign_arity if the procedure has the FOREIGN flag.
* libguile/programs.h (SCM_F_PROGRAM_IS_FOREIGN)
(SCM_PROGRAM_IS_FOREIGN): New interfaces.
* test-suite/tests/foreign.test ("procedure->pointer"): Add a test for
foreign arities.
109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
/* Copyright (C) 2001, 2009, 2012, 2013 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_INSTRUCTIONS_H_
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#define _SCM_INSTRUCTIONS_H_
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#include <libguile.h>
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#include <libguile/vm-operations.h>
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enum scm_rtl_opcode
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{
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#define ENUM(opcode, tag, name, meta) scm_rtl_op_##tag = opcode,
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FOR_EACH_VM_OPERATION(ENUM)
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#undef ENUM
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};
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#define SCM_PACK_RTL_8_8_8(op,a,b,c) ((op) | ((a) << 8) | ((b) << 16) | ((c) << 24))
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#define SCM_PACK_RTL_8_16(op,a,b) ((op) | ((a) << 8) | ((b) << 16))
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#define SCM_PACK_RTL_16_8(op,a,b) ((op) | ((a) << 8) | ((b) << 24))
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#define SCM_PACK_RTL_12_12(op,a,b) ((op) | ((a) << 8) | ((b) << 20))
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#define SCM_PACK_RTL_24(op,a) ((op) | ((a) << 8))
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#define SCM_UNPACK_RTL_8_8_8(op,a,b,c) \
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do \
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{ \
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a = (op >> 8) & 0xff; \
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b = (op >> 16) & 0xff; \
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c = op >> 24; \
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} \
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while (0)
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#define SCM_UNPACK_RTL_8_16(op,a,b) \
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do \
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{ \
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a = (op >> 8) & 0xff; \
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b = op >> 16; \
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} \
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while (0)
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#define SCM_UNPACK_RTL_16_8(op,a,b) \
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do \
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{ \
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a = (op >> 8) & 0xffff; \
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b = op >> 24; \
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} \
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while (0)
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#define SCM_UNPACK_RTL_12_12(op,a,b) \
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do \
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{ \
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a = (op >> 8) & 0xfff; \
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b = op >> 20; \
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} \
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while (0)
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#define SCM_UNPACK_RTL_24(op,a) \
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do \
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{ \
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a = op >> 8; \
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} \
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while (0)
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#define SCM_VM_NUM_INSTRUCTIONS (1<<8)
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#define SCM_VM_INSTRUCTION_MASK (SCM_VM_NUM_INSTRUCTIONS-1)
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enum scm_opcode {
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#define VM_INSTRUCTION_TO_OPCODE 1
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#include <libguile/vm-expand.h>
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#include <libguile/vm-i-system.i>
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#include <libguile/vm-i-scheme.i>
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#include <libguile/vm-i-loader.i>
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#undef VM_INSTRUCTION_TO_OPCODE
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};
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SCM_INTERNAL SCM scm_rtl_instruction_list (void);
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SCM_API SCM scm_instruction_list (void);
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SCM_API SCM scm_instruction_p (SCM obj);
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SCM_API SCM scm_instruction_length (SCM inst);
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SCM_API SCM scm_instruction_pops (SCM inst);
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SCM_API SCM scm_instruction_pushes (SCM inst);
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SCM_API SCM scm_instruction_to_opcode (SCM inst);
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SCM_API SCM scm_opcode_to_instruction (SCM op);
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SCM_INTERNAL void scm_bootstrap_instructions (void);
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SCM_INTERNAL void scm_init_instructions (void);
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#endif /* _SCM_INSTRUCTIONS_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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