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guile/libguile/instructions.h
Andy Wingo ad47e35939 fix race in which some instruction name symbols could go unmarked
* libguile/instructions.c: In loops, replace scm_op_last with
  SCM_VM_NUM_INSTRUCTIONS.
  (fetch_instruction_table): Protect the instruction symbols from
  collection. Before they were only marked by the name->opcode hash
  table, leading to races in which they could be collected.
  (scm_lookup_instruction_by_name): Protect the hash table earlier, as
  it's not actually a stack variable, since it's static.
2009-07-14 21:29:41 +02:00

53 lines
1.7 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_INSTRUCTIONS_H_
#define _SCM_INSTRUCTIONS_H_
#include <libguile.h>
#define SCM_VM_NUM_INSTRUCTIONS (1<<8)
#define SCM_VM_INSTRUCTION_MASK (SCM_VM_NUM_INSTRUCTIONS-1)
enum scm_opcode {
#define VM_INSTRUCTION_TO_OPCODE 1
#include <libguile/vm-expand.h>
#include <libguile/vm-i-system.i>
#include <libguile/vm-i-scheme.i>
#include <libguile/vm-i-loader.i>
#undef VM_INSTRUCTION_TO_OPCODE
};
SCM_API SCM scm_instruction_list (void);
SCM_API SCM scm_instruction_p (SCM obj);
SCM_API SCM scm_instruction_length (SCM inst);
SCM_API SCM scm_instruction_pops (SCM inst);
SCM_API SCM scm_instruction_pushes (SCM inst);
SCM_API SCM scm_instruction_to_opcode (SCM inst);
SCM_API SCM scm_opcode_to_instruction (SCM op);
SCM_INTERNAL void scm_bootstrap_instructions (void);
SCM_INTERNAL void scm_init_instructions (void);
#endif /* _SCM_INSTRUCTIONS_H_ */
/*
Local Variables:
c-file-style: "gnu"
End:
*/