1 files changed, 40 insertions, 0 deletions
diff --git a/elf/libc-dl-profstub.c b/elf/libc-dl-profstub.c
new file mode 100644
index 0000000000..8fb8aaa88e
--- /dev/null
+++ b/elf/libc-dl-profstub.c
@@ -0,0 +1,40 @@
+/* Helper definitions for profiling of shared libraries.
+   Copyright (C) 1998-2023 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <dlfcn.h>
+#include <elf.h>
+#include <ldsodefs.h>
+
+/* This is the map for the shared object we profile.  It is defined here
+   only because we test for this value being NULL or not.  */
+
+
+void
+_dl_mcount_wrapper (void *selfpc)
+{
+  GLRO(dl_mcount) ((ElfW(Addr)) RETURN_ADDRESS (0), (ElfW(Addr)) selfpc);
+}
+
+
+void
+_dl_mcount_wrapper_check (void *selfpc)
+{
+  if (GL(dl_profile_map) != NULL)
+    GLRO(dl_mcount) ((ElfW(Addr)) RETURN_ADDRESS (0), (ElfW(Addr)) selfpc);
+}
+libc_hidden_def (_dl_mcount_wrapper_check)