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authorUlrich Drepper <drepper@redhat.com>1999-07-07 18:39:33 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-07 18:39:33 +0000
commit94e365c61202e2472c8aea42c7c95ce40f5b843c (patch)
tree15cf6a02604ab91d5aa1feeaeb338f0fc6b91f34 /dlfcn/dlvsym.c
parent2556bfe6fdb5ccb4864e0249d5fdd475e4100c71 (diff)
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Update.
* sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'dlfcn/dlvsym.c')
-rw-r--r--dlfcn/dlvsym.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/dlfcn/dlvsym.c b/dlfcn/dlvsym.c
new file mode 100644
index 0000000..a279b95
--- /dev/null
+++ b/dlfcn/dlvsym.c
@@ -0,0 +1,55 @@
+/* Look up a versioned symbol in a shared object loaded by `dlopen'.
+ 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
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <dlfcn.h>
+
+struct dlvsym_args
+{
+ /* The arguments to dlvsym_doit. */
+ void *handle;
+ const char *name;
+ const char *version;
+ void *who;
+
+ /* The return values of dlvsym_doit. */
+ void *sym;
+};
+
+
+static void
+dlvsym_doit (void *a)
+{
+ struct dlvsym_args *args = (struct dlvsym_args *)a;
+
+ args->sym = _dl_vsym (args->handle, args->name, args->version, args->who);
+}
+
+void *
+__dlvsym (void *handle, const char *name, const char *version_str)
+{
+ struct dlvsym_args args;
+
+ args.handle = handle;
+ args.name = name;
+ args.who = __builtin_return_address (0);
+ args.version = version_str;
+
+ return (_dlerror_run (dlvsym_doit, &args) ? NULL : args.sym);
+}
+weak_alias (__dlvsym, dlvsym)