wrap memcpy to push down GLIBC dependency in static binary

poruloh · Mar 31, 2019 · 10fe822 · 10fe822
1 parent dec140e
commit 10fe822
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/src/memcpy.cpp b/src/memcpy.cpp
@@ -0,0 +1,9 @@
+#include <cstring>
+
+/* some systems do not have newest memcpy@@GLIBC_2.14 - stay with old good one */
+asm (".symver memcpy, memcpy@GLIBC_2.2.5");
+
+extern "C" void *__wrap_memcpy(void *dest, const void *src, size_t n)
+{
+  return memcpy(dest, src, n);
+}