add spawn syscall

+ Prefer over unixy fork/exec for speed since I don't want to support
  cow. Shell redirection should be done with env server and cooperating
  libc.

2 files changed, 13 insertions, 0 deletions

diff --git a/common/uapi/dispatch.c b/common/uapi/dispatch.c
index f2a12d6..db15b62 100644
--- a/common/uapi/dispatch.c
+++ b/common/uapi/dispatch.c
@@ -42,6 +42,7 @@ static const sys_t syscall_table[] = {
 	[SYS_CREATE] = sys_create,
 	[SYS_FORK] = sys_fork,
 	[SYS_EXEC] = sys_exec,
+	[SYS_SPAWN] = sys_spawn,
 	[SYS_SWAP] = sys_swap,
 	[SYS_ASSIGN] = sys_assign,
 
diff --git a/common/uapi/proc.c b/common/uapi/proc.c
index c8078db..d1d2bd7 100644
--- a/common/uapi/proc.c
+++ b/common/uapi/proc.c
@@ -83,6 +83,18 @@ SYSCALL_DEFINE2(exec)(sys_arg_t bin, sys_arg_t interp){
 }
 
 /**
+ * Spawn syscall handler.
+ *
+ * @param bin Binary to execute.
+ * @param interp Optional interpreter binary.
+ * @return \see prepare_proc() and 0.
+ */
+SYSCALL_DEFINE2(spawn)(sys_arg_t bin, sys_arg_t interp)
+{
+	/* @todo implement */
+}
+
+/**
  * Kill syscall handler.
  *
  * @param tid Thread to kill.