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On HPUX, shl_load should be called with options BIND_IMMEDIATE rather

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than BIND_DEFERRED.  That way, if the loaded library has unresolved
references, shl_load fails cleanly.  As we had it, shl_load would
succeed and then the dynlinker would call abort() when we try to call
into the loaded library.  abort()ing a backend is uncool.
This commit is contained in:
Tom Lane 2000-04-26 23:35:34 +00:00
parent 00645eb1fd
commit 6a4fa7eccb
1 changed files with 11 additions and 2 deletions
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13
src/backend/port/dynloader/hpux.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/port/dynloader/hpux.c,v 1.12 2000/01/26 05:56:44 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/port/dynloader/hpux.c,v 1.13 2000/04/26 23:35:34 tgl Exp $
*
* NOTES
* all functions are defined here -- it's impossible to trace the
@ -20,6 +20,7 @@
#include <a.out.h>
#include "postgres.h"
#include "dl.h"
#include "dynloader.h"
#include "fmgr.h"
@ -28,7 +29,12 @@
void *
pg_dlopen(char *filename)
{
shl_t handle = shl_load(filename, BIND_DEFERRED, 0);
/*
* Use BIND_IMMEDIATE so that undefined symbols cause a failure return
* from shl_load(), rather than an abort() later on when we attempt to
* call the library!
*/
shl_t handle = shl_load(filename, BIND_IMMEDIATE | BIND_VERBOSE, 0);
return (void *) handle;
}
@ -54,5 +60,8 @@ pg_dlerror()
{
static char errmsg[] = "shl_load failed";
if (errno)
return strerror(errno);
return errmsg;
}