Implement linux_vfork() syscall by calling vfork(). Analogous to the

linux_fork() implementation.

5 files changed, 45 insertions, 6 deletions

diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 684a9fcdf7b4..6bdadced6a05 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  $Id: linux_misc.c,v 1.62 1999/08/15 13:28:35 marcel Exp $
+ *  $Id: linux_misc.c,v 1.63 1999/08/15 17:28:39 marcel Exp $
  */
 
 #include "opt_compat.h"
@@ -575,6 +575,23 @@ linux_fork(struct proc *p, struct linux_fork_args *args)
     return 0;
 }
 
+int
+linux_vfork(struct proc *p, struct linux_vfork_args *args)
+{
+	int error;
+
+#ifdef DEBUG
+	printf("Linux-emul(%ld): fork()\n", p->p_pid);
+#endif
+
+	if ((error = vfork(p, (struct vfork_args *)args)) != 0)
+		return error;
+	/* Are we the child? */
+	if (p->p_retval[1] == 1)
+		p->p_retval[0] = 0;
+	return 0;
+}
+
 #define CLONE_VM	0x100
 #define CLONE_FS	0x200
 #define CLONE_FILES	0x400
diff --git a/sys/i386/linux/linux_misc.c b/sys/i386/linux/linux_misc.c
index 684a9fcdf7b4..6bdadced6a05 100644
--- a/sys/i386/linux/linux_misc.c
+++ b/sys/i386/linux/linux_misc.c
@@ -25,7 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  $Id: linux_misc.c,v 1.62 1999/08/15 13:28:35 marcel Exp $
+ *  $Id: linux_misc.c,v 1.63 1999/08/15 17:28:39 marcel Exp $
  */
 
 #include "opt_compat.h"
@@ -575,6 +575,23 @@ linux_fork(struct proc *p, struct linux_fork_args *args)
     return 0;
 }
 
+int
+linux_vfork(struct proc *p, struct linux_vfork_args *args)
+{
+	int error;
+
+#ifdef DEBUG
+	printf("Linux-emul(%ld): fork()\n", p->p_pid);
+#endif
+
+	if ((error = vfork(p, (struct vfork_args *)args)) != 0)
+		return error;
+	/* Are we the child? */
+	if (p->p_retval[1] == 1)
+		p->p_retval[0] = 0;
+	return 0;
+}
+
 #define CLONE_VM	0x100
 #define CLONE_FS	0x200
 #define CLONE_FILES	0x400
diff --git a/sys/i386/linux/linux_proto.h b/sys/i386/linux/linux_proto.h
index e5aefb956188..d3f742c1a2eb 100644
--- a/sys/i386/linux/linux_proto.h
+++ b/sys/i386/linux/linux_proto.h
@@ -2,7 +2,7 @@
  * System call prototypes.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.21 1999/08/15 17:25:56 marcel Exp 
+ * created from	Id: syscalls.master,v 1.22 1999/08/16 11:47:21 marcel Exp 
  */
 
 #ifndef _LINUX_SYSPROTO_H_
@@ -423,6 +423,9 @@ struct	linux_getcwd_args {
 	char *	buf;	char buf_[PAD_(char *)];
 	unsigned long	bufsize;	char bufsize_[PAD_(unsigned long)];
 };
+struct	linux_vfork_args {
+	register_t dummy;
+};
 int	linux_setup __P((struct proc *, struct linux_setup_args *));
 int	linux_fork __P((struct proc *, struct linux_fork_args *));
 int	linux_open __P((struct proc *, struct linux_open_args *));
@@ -529,6 +532,7 @@ int	linux_rt_sigaction __P((struct proc *, struct linux_rt_sigaction_args *));
 int	linux_rt_sigprocmask __P((struct proc *, struct linux_rt_sigprocmask_args *));
 int	linux_chown __P((struct proc *, struct linux_chown_args *));
 int	linux_getcwd __P((struct proc *, struct linux_getcwd_args *));
+int	linux_vfork __P((struct proc *, struct linux_vfork_args *));
 
 #ifdef COMPAT_43
 
diff --git a/sys/i386/linux/linux_syscall.h b/sys/i386/linux/linux_syscall.h
index 963fab589570..3e750604bad8 100644
--- a/sys/i386/linux/linux_syscall.h
+++ b/sys/i386/linux/linux_syscall.h
@@ -2,7 +2,7 @@
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.21 1999/08/15 17:25:56 marcel Exp 
+ * created from	Id: syscalls.master,v 1.22 1999/08/16 11:47:21 marcel Exp 
  */
 
 #define	LINUX_SYS_linux_setup	0
@@ -167,4 +167,5 @@
 #define	LINUX_SYS_linux_rt_sigprocmask	175
 #define	LINUX_SYS_linux_chown	182
 #define	LINUX_SYS_linux_getcwd	183
+#define	LINUX_SYS_linux_vfork	190
 #define	LINUX_SYS_MAXSYSCALL	191
diff --git a/sys/i386/linux/linux_sysent.c b/sys/i386/linux/linux_sysent.c
index 41cce486ee71..a98b32f45e90 100644
--- a/sys/i386/linux/linux_sysent.c
+++ b/sys/i386/linux/linux_sysent.c
@@ -2,7 +2,7 @@
  * System call switch table.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from	Id: syscalls.master,v 1.21 1999/08/15 17:25:56 marcel Exp 
+ * created from	Id: syscalls.master,v 1.22 1999/08/16 11:47:21 marcel Exp 
  */
 
 #include "opt_compat.h"
@@ -204,5 +204,5 @@ struct sysent linux_sysent[] = {
 	{ 0, (sy_call_t *)nosys },			/* 187 = sendfile */
 	{ 0, (sy_call_t *)nosys },			/* 188 = getpmsg */
 	{ 0, (sy_call_t *)nosys },			/* 189 = putpmsg */
-	{ 0, (sy_call_t *)nosys },			/* 190 = vfork */
+	{ 0, (sy_call_t *)linux_vfork },		/* 190 = linux_vfork */
 };