lazy *STACK-TOP-HINT*s

[sbcl.git] / src / code / target-package.lisp

diff --git a/src/code/target-package.lisp b/src/code/target-package.lisp
index 0e0a0aa..00cbc54 100644 (file)
--- a/src/code/target-package.lisp
+++ b/src/code/target-package.lisp
@@ -61,9 +61,6 @@
   (declare (function function))
   ;; FIXME: Since name conflicts can be signalled while holding the
   ;; mutex, user code can be run leading to lock ordering problems.
-  ;;
-  ;; This used to be a spinlock, but there it can be held for a long
-  ;; time while the debugger waits for user input.
   (sb!thread:with-recursive-lock (*package-graph-lock*)
     (funcall function)))
 
@@ -75,7 +72,7 @@
 
 (defmacro with-package-names ((names &key) &body body)
   `(let ((,names *package-names*))
-     (with-locked-hash-table (,names)
+     (with-locked-system-table (,names)
        ,@body)))
 \f
 ;;;; PACKAGE-HASHTABLE stuff
@@ -338,7 +335,8 @@ error if any of PACKAGES is not a valid package designator."
 ;;; most other operations, are unspecified for deleted packages. We
 ;;; just do the easy thing and signal errors in that case.
 (macrolet ((def (ext real)
-             `(defun ,ext (x) (,real (find-undeleted-package-or-lose x)))))
+             `(defun ,ext (package-designator)
+                (,real (find-undeleted-package-or-lose package-designator)))))
   (def package-nicknames package-%nicknames)
   (def package-use-list package-%use-list)
   (def package-used-by-list package-%used-by-list)
@@ -599,7 +597,7 @@ implementation it is ~S." *default-package-use-list*)
        (cerror "Clobber existing package."
                "A package named ~S already exists" name)
        (setf clobber t))
-     (with-packages ()
+     (with-package-graph ()
        ;; Check for race, signal the error outside the lock.
        (when (and (not clobber) (find-package name))
          (go :restart))
@@ -640,9 +638,10 @@ implementation it is ~S." *default-package-use-list*)
 (defun rename-package (package-designator name &optional (nicknames ()))
   #!+sb-doc
   "Changes the name and nicknames for a package."
+  (let ((package nil))
   (tagbody :restart
-     (let* ((package (find-undeleted-package-or-lose package-designator))
-            (name (package-namify name))
+       (setq package (find-undeleted-package-or-lose package-designator))
+       (let* ((name (package-namify name))
             (found (find-package name))
             (nicks (mapcar #'string nicknames)))
        (unless (or (not found) (eq found package))
@@ -668,8 +667,8 @@ implementation it is ~S." *default-package-use-list*)
            (setf (package-%name package) name
                  (gethash name names) package
                  (package-%nicknames package) ()))
-         (%enter-new-nicknames package nicknames))
-       package)))
+           (%enter-new-nicknames package nicknames))))
+    package))
 
 (defun delete-package (package-designator)
   #!+sb-doc
@@ -778,7 +777,7 @@ implementation it is ~S." *default-package-use-list*)
 
 ;;; If the symbol named by the first LENGTH characters of NAME doesn't exist,
 ;;; then create it, special-casing the keyword package.
-(defun intern* (name length package)
+(defun intern* (name length package &key no-copy)
   (declare (simple-string name))
   (multiple-value-bind (symbol where) (find-symbol* name length package)
     (cond (where
@@ -792,7 +791,18 @@ implementation it is ~S." *default-package-use-list*)
              (setf (values symbol where) (find-symbol* name length package))
              (if where
                  (values symbol where)
-                 (let ((symbol-name (subseq name 0 length)))
+                 (let ((symbol-name (cond (no-copy
+                                           (aver (= (length name) length))
+                                           name)
+                                          (t
+                                           ;; This so that SUBSEQ is inlined,
+                                           ;; because we need it fixed for cold init.
+                                           (string-dispatch
+                                               ((simple-array base-char (*))
+                                                (simple-array character (*)))
+                                               name
+                                             (declare (optimize speed))
+                                             (subseq name 0 length))))))
                    (with-single-package-locked-error
                        (:package package "interning ~A" symbol-name)
                      (let ((symbol (make-symbol symbol-name)))
@@ -966,8 +976,8 @@ uninterned."
                 (remove symbol shadowing-symbols)))
 
         (multiple-value-bind (s w) (find-symbol name package)
-          (declare (ignore s))
-          (cond ((or (eq w :internal) (eq w :external))
+          (cond ((not (eq symbol s)) nil)
+                ((or (eq w :internal) (eq w :external))
                  (nuke-symbol (if (eq w :internal)
                                   (package-internal-symbols package)
                                   (package-external-symbols package))