[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/libc/glibc/glibc-2.22/dlfcn/dlvsym.c b/ap/libc/glibc/glibc-2.22/dlfcn/dlvsym.c
new file mode 100644
index 0000000..6ca5e5c
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.22/dlfcn/dlvsym.c
@@ -0,0 +1,83 @@
+/* Look up a versioned symbol in a shared object loaded by `dlopen'.
+ Copyright (C) 1995-2015 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <dlfcn.h>
+#include <stddef.h>
+
+#include <ldsodefs.h>
+
+#if !defined SHARED && IS_IN (libdl)
+
+void *
+weak_function
+dlvsym (void *handle, const char *name, const char *version_str)
+{
+ return __dlvsym (handle, name, version_str, RETURN_ADDRESS (0));
+}
+
+#else
+
+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
+ DL_CALLER_DECL)
+{
+# ifdef SHARED
+ if (__glibc_unlikely (_dlfcn_hook != NULL))
+ return _dlfcn_hook->dlvsym (handle, name, version_str, DL_CALLER);
+# endif
+
+ struct dlvsym_args args;
+ args.handle = handle;
+ args.name = name;
+ args.who = DL_CALLER;
+ args.version = version_str;
+
+ /* Protect against concurrent loads and unloads. */
+ __rtld_lock_lock_recursive (GL(dl_load_lock));
+
+ void *result = (_dlerror_run (dlvsym_doit, &args) ? NULL : args.sym);
+
+ __rtld_lock_unlock_recursive (GL(dl_load_lock));
+
+ return result;
+}
+# ifdef SHARED
+weak_alias (__dlvsym, dlvsym)
+# endif
+#endif