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Bug fix.
[pintos-anon]
/
src
/
tests
/
userprog
/
shell.c
diff --git
a/src/tests/userprog/shell.c
b/src/tests/userprog/shell.c
index 905e18b0275570ce2f678cc9d87b8f72ee84bc03..7b9570ac9d564df88b3aef8c71d14600b1a481e6 100644
(file)
--- a/
src/tests/userprog/shell.c
+++ b/
src/tests/userprog/shell.c
@@
-23,6
+23,12
@@
main (void)
/* Execute command. */
if (cp > command)
- join (exec (command));
+ {
+ pid_t pid = exec (command);
+ if (pid != PID_ERROR)
+ join (pid);
+ else
+ printf ("exec failed\n");
+ }
}
}