diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1999-02-03 10:30:07 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1999-02-03 10:30:07 +0000 |
| commit | 649ad05add7f3f69a62b2ee929582a531f59cfd9 (patch) | |
| tree | f35e42ed65d1db09089ad6d810be2cda15fb5027 /elf | |
| parent | f549233427db72d1f3f51a1d4bca548361231b46 (diff) | |
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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.
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dlsym.c | 12 | ||||
| -rw-r--r-- | elf/dlvsym.c | 12 |
2 files changed, 22 insertions, 2 deletions
diff --git a/elf/dlsym.c b/elf/dlsym.c index 64d0cabbd4..5753f54d6e 100644 --- a/elf/dlsym.c +++ b/elf/dlsym.c @@ -1,5 +1,5 @@ /* 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. 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, 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 { diff --git a/elf/dlvsym.c b/elf/dlvsym.c index cee0e7f36b..b100a2ecbf 100644 --- a/elf/dlvsym.c +++ b/elf/dlvsym.c @@ -1,5 +1,5 @@ /* 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. 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, NULL, &args->version, 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 { |