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
|
/*-------------------------------------------------------------------------
*
* netbsd.h
* port-specific prototypes for NetBSD
*
*
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/backend/port/dynloader/netbsd.h,v 1.17 2008/01/01 19:45:51 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef PORT_PROTOS_H
#define PORT_PROTOS_H
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#include <dlfcn.h>
#include "utils/dynamic_loader.h"
/*
* Dynamic Loader on NetBSD 1.0.
*
* this dynamic loader uses the system dynamic loading interface for shared
* libraries (ie. dlopen/dlsym/dlclose). The user must specify a shared
* library as the file to be dynamically loaded.
*
* agc - I know this is all a bit crufty, but it does work, is fairly
* portable, and works (the stipulation that the d.l. function must
* begin with an underscore is fairly tricky, and some versions of
* NetBSD (like 1.0, and 1.0A pre June 1995) have no dlerror.)
*/
/*
* In some older systems, the RTLD_NOW flag isn't defined and the mode
* argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted
* if available, but it doesn't exist everywhere.
* If it doesn't exist, set it to 0 so it has no effect.
*/
#ifndef RTLD_NOW
#define RTLD_NOW 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
#define pg_dlopen(f) BSD44_derived_dlopen((f), RTLD_NOW | RTLD_GLOBAL)
#define pg_dlsym BSD44_derived_dlsym
#define pg_dlclose BSD44_derived_dlclose
#define pg_dlerror BSD44_derived_dlerror
char *BSD44_derived_dlerror(void);
void *BSD44_derived_dlopen(const char *filename, int num);
void *BSD44_derived_dlsym(void *handle, const char *name);
void BSD44_derived_dlclose(void *handle);
#endif /* PORT_PROTOS_H */
|
