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Commit29351a0

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Remove obsolete openbsd dynloader code
dlopen() has been documented since OpenBSD 2.0 (1996).
1 parent2db1905 commit29351a0

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2 files changed

+6
-125
lines changed

2 files changed

+6
-125
lines changed
Lines changed: 2 additions & 101 deletions
Original file line numberDiff line numberDiff line change
@@ -1,106 +1,7 @@
11
/*
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* Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
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* Portions Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* src/backend/port/dynloader/openbsd.c
73
*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
4+
* Dummy file used for nothing at this point
195
*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
6+
* see openbsd.h
317
*/
32-
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#if defined(LIBC_SCCS)&& !defined(lint)
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staticcharsccsid[]="@(#)dl.c5.4 (Berkeley) 2/23/91";
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#endif/* LIBC_SCCS and not lint */
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#include"postgres.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"dynloader.h"
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staticcharerror_message[BUFSIZ];
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char*
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BSD44_derived_dlerror(void)
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{
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staticcharret[BUFSIZ];
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strcpy(ret,error_message);
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error_message[0]=0;
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return (ret[0]==0) ?NULL :ret;
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}
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void*
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BSD44_derived_dlopen(constchar*file,intnum)
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{
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#if !defined(HAVE_DLOPEN)
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snprintf(error_message,sizeof(error_message),
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"dlopen (%s) not supported",file);
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returnNULL;
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#else
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void*vp;
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if ((vp=dlopen((char*)file,num))==NULL)
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snprintf(error_message,sizeof(error_message),
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"dlopen (%s) failed: %s",file,dlerror());
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returnvp;
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#endif
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}
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void*
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BSD44_derived_dlsym(void*handle,constchar*name)
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{
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#if !defined(HAVE_DLOPEN)
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snprintf(error_message,sizeof(error_message),
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"dlsym (%s) failed",name);
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returnNULL;
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#else
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void*vp;
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#ifndef__ELF__
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charbuf[BUFSIZ];
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if (*name!='_')
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{
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snprintf(buf,sizeof(buf),"_%s",name);
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name=buf;
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}
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#endif/* !__ELF__ */
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if ((vp=dlsym(handle, (char*)name))==NULL)
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snprintf(error_message,sizeof(error_message),
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"dlsym (%s) failed",name);
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returnvp;
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#endif
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}
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void
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BSD44_derived_dlclose(void*handle)
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{
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#if defined(HAVE_DLOPEN)
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dlclose(handle);
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#endif
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}

‎src/backend/port/dynloader/openbsd.h‎

Lines changed: 4 additions & 24 deletions
Original file line numberDiff line numberDiff line change
@@ -13,25 +13,10 @@
1313
#ifndefPORT_PROTOS_H
1414
#definePORT_PROTOS_H
1515

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#include<nlist.h>
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#include<link.h>
1816
#include<dlfcn.h>
1917

2018
#include"utils/dynamic_loader.h"/* pgrminclude ignore */
2119

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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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3520
/*
3621
* In some older systems, the RTLD_NOW flag isn't defined and the mode
3722
* argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted
@@ -45,14 +30,9 @@
4530
#defineRTLD_GLOBAL 0
4631
#endif
4732

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#definepg_dlopen(f) BSD44_derived_dlopen((f), RTLD_NOW | RTLD_GLOBAL)
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#definepg_dlsym BSD44_derived_dlsym
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#definepg_dlclose BSD44_derived_dlclose
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#definepg_dlerror BSD44_derived_dlerror
52-
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char*BSD44_derived_dlerror(void);
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void*BSD44_derived_dlopen(constchar*filename,intnum);
55-
void*BSD44_derived_dlsym(void*handle,constchar*name);
56-
voidBSD44_derived_dlclose(void*handle);
33+
#definepg_dlopen(f)dlopen((f), RTLD_NOW | RTLD_GLOBAL)
34+
#definepg_dlsymdlsym
35+
#definepg_dlclosedlclose
36+
#definepg_dlerrordlerror
5737

5838
#endif/* PORT_PROTOS_H */

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