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-rw-r--r--elf/ifuncpreloadmod1b.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/elf/ifuncpreloadmod1b.c b/elf/ifuncpreloadmod1b.c
new file mode 100644
index 0000000..1194ae2
--- /dev/null
+++ b/elf/ifuncpreloadmod1b.c
@@ -0,0 +1,49 @@
+/* Shared module to test for relocation over with IFUNC symbols.
+ Copyright (C) 2018 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 <stddef.h>
+
+void *
+my_memmove(void *dst_p, const void *src_p, size_t n)
+{
+ const char *src = src_p;
+ char *dst = dst_p;
+ char *ret = dst;
+ if (src < dst)
+ {
+ dst += n;
+ src += n;
+ while (n--)
+ *--dst = *--src;
+ }
+ else
+ while (n--)
+ *dst++ = *src++;
+ return ret;
+}
+
+void *memmove (void *, const void *, size_t)
+ __attribute__ ((ifunc ("resolve_memmove")));
+
+typedef void *(*memmove_t) (void *, const void *, size_t);
+
+static memmove_t
+resolve_memmove (void)
+{
+ return my_memmove;
+}