1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
{
$Id: import.pas,v 1.26 2005/02/14 17:13:06 peter Exp $
Copyright (c) 1998-2002 by Peter Vreman
This unit implements an uniform import object
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************}
unit import;
{$i fpcdefs.inc}
interface
uses
cutils,cclasses,
systems,
aasmbase,
symdef,symsym;
type
timported_item = class(TLinkedListItem)
ordnr : word;
name,
func : pstring;
lab : tasmlabel;
is_var : boolean;
constructor Create(const n,s : string;o : word);
constructor Create_var(const n,s : string);
destructor Destroy;override;
end;
timportlist = class(TLinkedListItem)
dllname : pstring;
imported_items : tlinkedlist;
constructor Create(const n : string);
destructor Destroy;Override;
end;
timportlib=class
private
notsupmsg : boolean;
procedure NotSupported;
public
constructor Create;virtual;
destructor Destroy;override;
procedure preparelib(const s:string);virtual;
procedure importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);virtual;
procedure importvariable(vs:tglobalvarsym;const name,module:string);virtual;
procedure generatelib;virtual;
procedure generatesmartlib;virtual;
end;
TDLLScanner=class
public
f:file;
impname:string;
TheWord:array[0..1]of char;
HeaderOffset:cardinal;
loaded:integer;
function isSuitableFileType(x:cardinal):longbool;virtual;abstract;
function GetEdata(HeaderEntry:cardinal):longbool;virtual;abstract;
function Scan(const binname:string):longbool;virtual;abstract;
end;
TImportLibClass=class of TImportLib;
TDLLScannerClass=class of TDLLScanner;
var
CImportLib : array[tsystem] of TImportLibClass;
CDLLScanner : array[tsystem] of TDLLScannerClass;
ImportLib : TImportLib;
procedure RegisterImport(t:tsystem;c:TImportLibClass);
procedure RegisterDLLScanner(t:tsystem;c:TDLLScannerClass);
procedure InitImport;
procedure DoneImport;
implementation
uses
verbose,globals;
{****************************************************************************
Timported_item
****************************************************************************}
constructor timported_item.Create(const n,s : string;o : word);
begin
inherited Create;
func:=stringdup(n);
name:=stringdup(s);
ordnr:=o;
lab:=nil;
is_var:=false;
end;
constructor timported_item.create_var(const n,s : string);
begin
inherited Create;
func:=stringdup(n);
name:=stringdup(s);
ordnr:=0;
lab:=nil;
is_var:=true;
end;
destructor timported_item.destroy;
begin
stringdispose(name);
stringdispose(func);
inherited destroy;
end;
{****************************************************************************
TImportlist
****************************************************************************}
constructor timportlist.Create(const n : string);
begin
inherited Create;
dllname:=stringdup(n);
imported_items:=Tlinkedlist.Create;
end;
destructor timportlist.destroy;
begin
imported_items.free;
stringdispose(dllname);
end;
{****************************************************************************
TImportLib
****************************************************************************}
constructor timportlib.Create;
begin
notsupmsg:=false;
end;
destructor timportlib.Destroy;
begin
end;
procedure timportlib.NotSupported;
begin
{ show the message only once }
if not notsupmsg then
begin
Message(exec_e_dll_not_supported);
notsupmsg:=true;
end;
end;
procedure timportlib.preparelib(const s:string);
begin
NotSupported;
end;
procedure timportlib.importprocedure(aprocdef:tprocdef;const module:string;index:longint;const name:string);
begin
NotSupported;
end;
procedure timportlib.importvariable(vs:tglobalvarsym;const name,module:string);
begin
NotSupported;
end;
procedure timportlib.generatelib;
begin
NotSupported;
end;
procedure timportlib.generatesmartlib;
begin
NotSupported;
end;
{*****************************************************************************
Init/Done
*****************************************************************************}
procedure RegisterImport(t:tsystem;c:TImportLibClass);
begin
CImportLib[t]:=c;
end;
procedure RegisterDLLScanner(t:tsystem;c:TDLLScannerClass);
begin
CDLLScanner[t]:=c;
end;
procedure InitImport;
begin
if assigned(CImportLib[target_info.system]) then
importlib:=CImportLib[target_info.system].Create
else
importlib:=TImportLib.Create;
end;
procedure DoneImport;
begin
if assigned(importlib) then
importlib.free;
end;
end.
{
$Log: import.pas,v $
Revision 1.26 2005/02/14 17:13:06 peter
* truncate log
}
|
