Merge branch 'master' of github.com:grpc/grpc into make-ruby-installable

Conflicts:
	BUILD
	Makefile
	binding.gyp
	build.yaml
	gRPC.podspec
	grpc.gemspec
	package.json
	src/python/grpcio/grpc_core_dependencies.py
	templates/Makefile.template
	tools/doxygen/Doxyfile.core.internal
	tools/run_tests/sources_and_headers.json
	vsprojects/vcxproj/gpr/gpr.vcxproj
	vsprojects/vcxproj/gpr/gpr.vcxproj.filters

1 files changed, 50 insertions, 0 deletions

diff --git a/src/core/support/wrap_memcpy.c b/src/core/support/wrap_memcpy.c
new file mode 100644
index 0000000000..ac30668ec1
--- /dev/null
+++ b/src/core/support/wrap_memcpy.c
@@ -0,0 +1,50 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <string.h>
+
+/* Provide a wrapped memcpy for targets that need to be backwards
+ * compatible with older libc's.
+ *
+ * Enable by setting LDFLAGS=-Wl,-wrap,memcpy when linking.
+ */
+
+#ifdef __linux__
+#ifdef __x86_64__
+__asm__(".symver memcpy,memcpy@GLIBC_2.2.5");
+#endif
+
+void *__wrap_memcpy(void *destination, const void *source, size_t num) {
+  return memcpy(destination, source, num);
+}
+#endif