allow approximating unions of numeric types

[sbcl.git] / src / compiler / generic / genesis.lisp

diff --git a/src/compiler/generic/genesis.lisp b/src/compiler/generic/genesis.lisp
index 6470fda..fac1eb4 100644 (file)
--- a/src/compiler/generic/genesis.lisp
+++ b/src/compiler/generic/genesis.lisp
@@ -936,6 +936,7 @@ core and return a descriptor to it."
     (cold-set-layout-slot result 'info *nil-descriptor*)
     (cold-set-layout-slot result 'pure *nil-descriptor*)
     (cold-set-layout-slot result 'n-untagged-slots nuntagged)
+    (cold-set-layout-slot result 'source-location *nil-descriptor*)
     (cold-set-layout-slot result 'for-std-class-p *nil-descriptor*)
 
     (setf (gethash name *cold-layouts*)
@@ -1597,6 +1598,13 @@ core and return a descriptor to it."
                                 (subseq line (1+ p2)))
                         (values (parse-integer line :end p1 :radix 16)
                                 (subseq line (1+ p2))))
+                  ;; KLUDGE CLH 2010-05-31: on darwin, nm gives us
+                  ;; _function but dlsym expects us to look up
+                  ;; function, without the leading _ . Therefore, we
+                  ;; strip it off here.
+                  #!+darwin
+                  (when (equal (char name 0) #\_)
+                    (setf name (subseq name 1)))
                   (multiple-value-bind (old-value found)
                       (gethash name *cold-foreign-symbol-table*)
                     (when (and found
@@ -1604,7 +1612,19 @@ core and return a descriptor to it."
                       (warn "redefining ~S from #X~X to #X~X"
                             name old-value value)))
                   (/show "adding to *cold-foreign-symbol-table*:" name value)
-                  (setf (gethash name *cold-foreign-symbol-table*) value))))))
+                  (setf (gethash name *cold-foreign-symbol-table*) value)
+                  #!+win32
+                  (let ((at-position (position #\@ name)))
+                    (when at-position
+                      (let ((name (subseq name 0 at-position)))
+                        (multiple-value-bind (old-value found)
+                            (gethash name *cold-foreign-symbol-table*)
+                          (when (and found
+                                     (not (= old-value value)))
+                            (warn "redefining ~S from #X~X to #X~X"
+                                  name old-value value)))
+                        (setf (gethash name *cold-foreign-symbol-table*)
+                              value)))))))))
   (values))     ;; PROGN
 
 (defun cold-foreign-symbol-address (name)