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/*
Title: exporter.h - Export a function as an object or C file
Copyright (c) 2006 David C.J. Matthews
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 2.1 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EXPORTER_H_INCLUDED
#define EXPORTER_H_INCLUDED
#include "globals.h" // For PolyWord
#include "polyexports.h" // For struct _memTableEntry
#ifdef HAVE_STDIO_H
#include <stdio.h> // For FILE
#endif
class SaveVecEntry;
typedef SaveVecEntry *Handle;
class TaskData;
extern Handle exportNative(TaskData *mdTaskData, Handle args);
extern Handle exportPortable(TaskData *mdTaskData, Handle args);
// This is the base class for the exporters for the various object-code formats.
class Exporter
{
public:
Exporter();
virtual ~Exporter();
virtual void exportStore(void) = 0;
// Called by the root thread to do the work.
void RunExport(PolyObject *rootFunction);
protected:
virtual PolyWord createRelocation(PolyWord p, void *relocAddr) = 0;
void relocateValue(PolyWord *pt);
void relocateObject(PolyObject *p);
void createRelocation(PolyWord *pt) { *pt = createRelocation(*pt, pt); }
unsigned findArea(void *p); // Find index of area that address is in.
public:
FILE *exportFile;
const char *errorMessage;
protected:
struct _memTableEntry *memTable;
unsigned memTableEntries;
unsigned ioMemEntry; // The index corresponding to the IO area.
unsigned ioSpacing;
PolyObject *rootFunction; // Address of the root function.
};
// The object-code exporters all use a similar string table format
// consisting of null-terminated C-strings.
class ExportStringTable
{
public:
ExportStringTable();
~ExportStringTable();
unsigned long makeEntry(const char *str);
char *strings;
unsigned long stringSize, stringAvailable;
};
#include "scanaddrs.h"
class CopyScan: public ScanAddress
{
public:
CopyScan(unsigned h=0);
~CopyScan();
protected:
virtual POLYUNSIGNED ScanAddressAt(PolyWord *pt);
public:
virtual PolyObject *ScanObjectAddress(PolyObject *base);
// Default sizes of the segments.
POLYUNSIGNED defaultImmSize, defaultMutSize, defaultNoOverSize;
unsigned hierarchy;
};
#endif
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