preload: fix build issue with clang 19

clan · clan · commit 8b4e72230557 · 2025-03-03T22:40:15.000+08:00
librdmacm/preload.c:796:9: error: at most one overload for a given name may lack the 'overloadable' attribute

Signed-off-by: Z. Liu &lt;zhixu.liu@gmail.com&gt;
diff --git a/librdmacm/preload.c b/librdmacm/preload.c
@@ -793,7 +793,11 @@ 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
+#ifdef __clang__
+__attribute__((overloadable))
+#endif
+recvfrom(int socket, void *buf, size_t len, int flags,
 		 struct sockaddr *src_addr, socklen_t *addrlen)
 {
 	int fd;

Original file line number	Diff line number	Diff line change
`@@ -793,7 +793,11 @@ ssize_t recv(int socket, void *buf, size_t len, int flags)`
`793`	`793`	`rrecv(fd, buf, len, flags) : real.recv(fd, buf, len, flags);`
`794`	`794`	`}`
`795`	`795`
`796`		`-ssize_t recvfrom(int socket, void *buf, size_t len, int flags,`
	`796`	`+ssize_t`
	`797`	`+#ifdef __clang__`
	`798`	`+__attribute__((overloadable))`
	`799`	`+#endif`
	`800`	`+recvfrom(int socket, void *buf, size_t len, int flags,`
`797`	`801`	`struct sockaddr src_addr, socklen_t addrlen)`
`798`	`802`	`{`
`799`	`803`	`int fd;`