Changeset 408 for trunk/user/ksh

Timestamp:

Dec 5, 2017, 4:20:07 PM (6 years ago)

Author:

alain

Message:

Fix several bugs in the fork() syscall.

File:

• trunk/user/ksh/ksh.c (modified) (4 diffs)

trunk/user/ksh/ksh.c

@@ -268 +268 @@
 static void cmd_load( int argc , char **argv )
 {
-        unsigned int   pid;
-    unsigned int   error;
-        char         * pathname;
+        unsigned int         pid;
+    unsigned int         error;
+        char               * pathname;
 
         if (argc != 2) 
@@ -285 +285 @@
     if (pid == 0)  // it is the child process 
     {
-
-printf("\n[KSH_DBG] process %x before exec\n", getpid() );
+        printf("CHILD\n");
+        exit(0);
 
         // exec system call
-        error = exec( pathname , NULL , NULL );
-
-printf("\n[KSH_DBG] process %x after exec / error = %d\n", getpid() , error );
-
-        if( error )
-        {
-            printf("error: new process unable to exec <%s>\n", pathname );
-            // TODO exit();
-        }
+        // error = exec( pathname , NULL , NULL );
+
+        // if( error )
+        // {
+        //    printf("error: new process unable to exec <%s>\n", pathname );
+        //    exit();
+        // }
         } 
     else if ( pid < 0 )  // it is a failure reported to parent
@@ -305 +303 @@
     else                 // it is a success reported to parent
     {
-
-printf("\n[KSH_DBG] process %x created for <%s>\n", pid, pathname );
-
+        printf("PARENT\n");
+        exit(0);
     }
 
@@ -590 +587 @@
 parse("load /bin/user/sort.elf");
 // @@@
+
+
     
         while (1)