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| 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/dlsym.c | |
| parent | f549233427db72d1f3f51a1d4bca548361231b46 (diff) | |
| download | glibc-649ad05add7f3f69a62b2ee929582a531f59cfd9.tar.gz glibc-649ad05add7f3f69a62b2ee929582a531f59cfd9.tar.xz glibc-649ad05add7f3f69a62b2ee929582a531f59cfd9.zip | |
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/dlsym.c')
| -rw-r--r-- | elf/dlsym.c | 12 |
1 files changed, 11 insertions, 1 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 { |