sync with upstream via psm

libc/sysdeps/linux/ia64/vfork.S

@@ -20,8 +20,11 @@
 #include "sysdep.h"
 #define _SIGNAL_H
 #include <bits/signum.h>
-#define _SCHED_H
-#include <bits/sched.h>
+
+/* The following are defined in linux/sched.h, which unfortunately	*/
+/* is not safe for inclusion in an assembly file.			*/
+#define CLONE_VM        0x00000100      /* set if VM shared between processes */
+#define CLONE_VFORK     0x00004000      /* set if the parent wants the child to wake it up on mm_release */
 
 /* pid_t vfork(void); */
 /* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0)	*/
@@ -36,6 +39,6 @@ ENTRY(__vfork)
 (p6)	br.cond.spnt.few __syscall_error
 	ret
 PSEUDO_END(__vfork)
+libc_hidden_weak (vfork)
 
 weak_alias (__vfork, vfork)
-libc_hidden_weak (vfork)

libc/sysdeps/linux/x86_64/clone.S

@@ -23,8 +23,9 @@
 #define _ERRNO_H 1
 #include <bits/errno.h>
 #include <sys/syscall.h>
-#define _SCHED_H
-#include <bits/sched.h>
+
+#define CLONE_VM	0x00000100
+#define CLONE_THREAD	0x00010000
 
 /* The userland implementation is:
    int clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg),