61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*-------------------------------------------------------------------------
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*
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* netbsd.h
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* port-specific prototypes for NetBSD
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*
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*
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* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/backend/port/dynloader/netbsd.h,v 1.12 2003/11/29 22:39:55 pgsql Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PORT_PROTOS_H
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#define PORT_PROTOS_H
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#include <sys/types.h>
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#include <nlist.h>
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#include <link.h>
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#include <dlfcn.h>
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#include "utils/dynamic_loader.h"
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/*
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* Dynamic Loader on NetBSD 1.0.
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*
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* this dynamic loader uses the system dynamic loading interface for shared
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* libraries (ie. dlopen/dlsym/dlclose). The user must specify a shared
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* library as the file to be dynamically loaded.
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*
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* agc - I know this is all a bit crufty, but it does work, is fairly
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* portable, and works (the stipulation that the d.l. function must
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* begin with an underscore is fairly tricky, and some versions of
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* NetBSD (like 1.0, and 1.0A pre June 1995) have no dlerror.)
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*/
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/*
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* In some older systems, the RTLD_NOW flag isn't defined and the mode
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* argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted
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* if available, but it doesn't exist everywhere.
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* If it doesn't exist, set it to 0 so it has no effect.
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*/
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#ifndef RTLD_NOW
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#define RTLD_NOW 1
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#endif
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#ifndef RTLD_GLOBAL
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#define RTLD_GLOBAL 0
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#endif
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#define pg_dlopen(f) BSD44_derived_dlopen((f), RTLD_NOW | RTLD_GLOBAL)
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#define pg_dlsym BSD44_derived_dlsym
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#define pg_dlclose BSD44_derived_dlclose
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#define pg_dlerror BSD44_derived_dlerror
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char *BSD44_derived_dlerror(void);
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void *BSD44_derived_dlopen(const char *filename, int num);
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void *BSD44_derived_dlsym(void *handle, const char *name);
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void BSD44_derived_dlclose(void *handle);
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#endif /* PORT_PROTOS_H */
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