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Update. 

1999-02-03  Ulrich Drepper  <drepper@cygnus.com>

	* elf/dlsym.c (dlsym_doit): If no symbol for RTLD_NEXT is found
	initialize ref element of args object so that dlsym does not dump
	a core.
	* elf/dlvsym.c (dlvsym_doit): Likewise.
This commit is contained in:
Ulrich Drepper 1999-02-03 10:30:07 +00:00
parent f549233427
commit 649ad05add
3 changed files with 29 additions and 2 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
1999-02-03 Ulrich Drepper <drepper@cygnus.com>
* elf/dlsym.c (dlsym_doit): If no symbol for RTLD_NEXT is found
initialize ref element of args object so that dlsym does not dump
a core.
* elf/dlvsym.c (dlvsym_doit): Likewise.
1999-02-03 Jakub Jelinek <jj@ultra.linux.cz> 1999-02-03 Jakub Jelinek <jj@ultra.linux.cz>
* sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S: Set branch * sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S: Set branch

12
elf/dlsym.c
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@ -1,5 +1,5 @@
/* Look up a symbol in a shared object loaded by `dlopen'. /* Look up a symbol in a shared object loaded by `dlopen'.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -65,6 +65,16 @@ RTLD_NEXT used in code not dynamically loaded"));
args->loadbase = _dl_lookup_symbol_skip (args->name, &args->ref, args->loadbase = _dl_lookup_symbol_skip (args->name, &args->ref,
l->l_local_scope, NULL, match); l->l_local_scope, NULL, match);
if (args->loadbase == 0)
{
/* This means that no such symbol is defined. In this case we
have to provide a phony Elfxx_Sym entry since the value is
referenced in `dlsym'. */
static const ElfW(Sym) null_result;
args->ref = &null_result;
}
} }
else else
{ {

12
elf/dlvsym.c
View File

@ -1,5 +1,5 @@
/* Look up a versioned symbol in a shared object loaded by `dlopen'. /* Look up a versioned symbol in a shared object loaded by `dlopen'.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -71,6 +71,16 @@ RTLD_NEXT used in code not dynamically loaded"));
l->l_local_scope, l->l_local_scope,
NULL, &args->version, NULL, &args->version,
match); match);
if (args->loadbase == 0)
{
/* This means that no such symbol is defined. In this case we
have to provide a phony Elfxx_Sym entry since the value is
referenced in `dlsym'. */
static const ElfW(Sym) null_result;
args->ref = &null_result;
}
} }
else else
{ {