7 files changed, 3 insertions, 12 deletions
diff --git a/src/linux/epoll.c b/src/linux/epoll.c
index 93baa814..e56e8f4c 100644
--- a/src/linux/epoll.c
+++ b/src/linux/epoll.c
@@ -5,6 +5,7 @@
 
 int epoll_create(int size)
 {
+	if (size<=0) return __syscall_ret(-EINVAL);
 	return epoll_create1(0);
 }
 
diff --git a/src/linux/fallocate.c b/src/linux/fallocate.c
index 7d68bc8f..9146350e 100644
--- a/src/linux/fallocate.c
+++ b/src/linux/fallocate.c
@@ -7,6 +7,3 @@ int fallocate(int fd, int mode, off_t base, off_t len)
 	return syscall(SYS_fallocate, fd, mode, __SYSCALL_LL_E(base),
 		__SYSCALL_LL_E(len));
 }
-
-#undef fallocate64
-weak_alias(fallocate, fallocate64);
diff --git a/src/linux/getdents.c b/src/linux/getdents.c
index 796c1e5c..97f76e14 100644
--- a/src/linux/getdents.c
+++ b/src/linux/getdents.c
@@ -8,5 +8,3 @@ int getdents(int fd, struct dirent *buf, size_t len)
 	if (len>INT_MAX) len = INT_MAX;
 	return syscall(SYS_getdents, fd, buf, len);
 }
-
-weak_alias(getdents, getdents64);
diff --git a/src/linux/membarrier.c b/src/linux/membarrier.c
index 343f7360..f64fe7e1 100644
--- a/src/linux/membarrier.c
+++ b/src/linux/membarrier.c
@@ -35,7 +35,7 @@ int __membarrier(int cmd, int flags)
 		__tl_lock();
 		sem_init(&barrier_sem, 0, 0);
 		struct sigaction sa = {
-			.sa_flags = SA_RESTART,
+			.sa_flags = SA_RESTART | SA_ONSTACK,
 			.sa_handler = bcast_barrier
 		};
 		memset(&sa.sa_mask, -1, sizeof sa.sa_mask);
diff --git a/src/linux/prlimit.c b/src/linux/prlimit.c
index 3df9ffba..fcf45aab 100644
--- a/src/linux/prlimit.c
+++ b/src/linux/prlimit.c
@@ -21,6 +21,3 @@ int prlimit(pid_t pid, int resource, const struct rlimit *new_limit, struct rlim
 	}
 	return r;
 }
-
-#undef prlimit64
-weak_alias(prlimit, prlimit64);
diff --git a/src/linux/sendfile.c b/src/linux/sendfile.c
index 9afe6dd6..fc1577d3 100644
--- a/src/linux/sendfile.c
+++ b/src/linux/sendfile.c
@@ -5,5 +5,3 @@ ssize_t sendfile(int out_fd, int in_fd, off_t *ofs, size_t count)
 {
 	return syscall(SYS_sendfile, out_fd, in_fd, ofs, count);
 }
-
-weak_alias(sendfile, sendfile64);
diff --git a/src/linux/wait4.c b/src/linux/wait4.c
index 83650e34..ff2e3e66 100644
--- a/src/linux/wait4.c
+++ b/src/linux/wait4.c
@@ -12,7 +12,7 @@ pid_t wait4(pid_t pid, int *status, int options, struct rusage *ru)
 	if (ru) {
 		long long kru64[18];
 		r = __syscall(SYS_wait4_time64, pid, status, options, kru64);
-		if (!r) {
+		if (r > 0) {
 			ru->ru_utime = (struct timeval)
 				{ .tv_sec = kru64[0], .tv_usec = kru64[1] };
 			ru->ru_stime = (struct timeval)