Framework to test IFUNC implementations on target

3 files changed, 34 insertions, 1 deletions

diff --git a/misc/Makefile b/misc/Makefile
index e5e9b9f..ea68d26 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -65,7 +65,7 @@ routines := brk sbrk sstk ioctl \
 	    getloadavg getclktck \
 	    fgetxattr flistxattr fremovexattr fsetxattr getxattr \
 	    listxattr lgetxattr llistxattr lremovexattr lsetxattr \
-	    removexattr setxattr getauxval
+	    removexattr setxattr getauxval ifunc-impl-list
 
 generated := tst-error1.mtrace tst-error1-mem
 
diff --git a/misc/Versions b/misc/Versions
index b2a9147..64632f0 100644
--- a/misc/Versions
+++ b/misc/Versions
@@ -151,5 +151,6 @@ libc {
   }
   GLIBC_PRIVATE {
     __madvise;
+    __libc_ifunc_impl_list;
   }
 }
diff --git a/misc/ifunc-impl-list.c b/misc/ifunc-impl-list.c
new file mode 100644
index 0000000..c4b460d
--- /dev/null
+++ b/misc/ifunc-impl-list.c
@@ -0,0 +1,32 @@
+/* Enumerate available IFUNC implementations of a function.  Stub version.
+   Copyright (C) 2012 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 <ifunc-impl-list.h>
+
+/* Fill ARRAY of MAX elements with IFUNC implementations for function
+   NAME supported on target machine and return the number of valid
+   entries.  */
+
+size_t
+__libc_ifunc_impl_list
+  (const char *name __attribute__ ((unused)),
+   struct libc_ifunc_impl *array __attribute__ ((unused)),
+   size_t max __attribute__ ((unused)))
+{
+  return 0;
+}