From 42976ed0a0160864b41680604ea9cdb3c175cb94 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 15 Jan 2020 17:48:28 -0800
Subject: [PATCH] Use overloadable attribute with clang

This is overriding the libc implementation

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 librdmacm/preload.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/librdmacm/preload.c b/librdmacm/preload.c
index d46beb1b..b451de50 100644
--- a/librdmacm/preload.c
+++ b/librdmacm/preload.c
@@ -59,6 +59,12 @@
 #include "cma.h"
 #include "indexer.h"
 
+#ifdef __clang__
+#define OVERLOAD  __attribute__((overloadable)) 
+#else
+#define OVERLOAD
+#endif
+
 struct socket_calls {
 	int (*socket)(int domain, int type, int protocol);
 	int (*bind)(int socket, const struct sockaddr *addr, socklen_t addrlen);
@@ -793,7 +799,7 @@ ssize_t recv(int socket, void *buf, size_t len, int flags)
 		rrecv(fd, buf, len, flags) : real.recv(fd, buf, len, flags);
 }
 
-ssize_t recvfrom(int socket, void *buf, size_t len, int flags,
+ssize_t OVERLOAD recvfrom(int socket, void *buf, size_t len, int flags,
 		 struct sockaddr *src_addr, socklen_t *addrlen)
 {
 	int fd;
-- 
2.25.0