X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftarget-load.lisp;h=2e687c5c25858e0a226cc6595ef0669b64efcef1;hb=01044af1b8d69fc3899dc0417064c1512223223d;hp=56a139eda2f9317d71788abc6a5d4abcbf32bc8e;hpb=b7a8f5313a83dea33ce60551a4fb987b415c2cc6;p=sbcl.git

diff --git a/src/code/target-load.lisp b/src/code/target-load.lisp
index 56a139e..2e687c5 100644
--- a/src/code/target-load.lisp
+++ b/src/code/target-load.lisp
@@ -42,6 +42,16 @@
 
 ;;;; LOAD itself
 
+(define-condition fasl-header-missing (invalid-fasl)
+  ((fhsss :reader invalid-fasl-fhsss :initarg :fhsss))
+  (:report
+   (lambda (condition stream)
+     (format stream "~@<File ~S has a fasl file type, but no fasl header:~%~
+                     Expected ~S, but got ~S.~:@>"
+	     (invalid-fasl-stream condition)
+	     (invalid-fasl-expected condition)
+	     (invalid-fasl-fhsss condition)))))
+
 ;;; a helper function for LOAD: Load the stuff in a file when we have
 ;;; the name.
 (defun internal-load (pathname truename if-does-not-exist verbose print
@@ -82,8 +92,10 @@
 			  :binary))
 	  (t
 	   (when (string= (pathname-type truename) *fasl-file-type*)
-	     (error "File has a fasl file type, but no fasl file header:~%  ~S"
-		    (namestring truename)))
+ 	     (error 'fasl-header-missing
+ 		    :stream (namestring truename)
+ 		    :fhsss first-line
+ 		    :expected fhsss))
 	   (internal-load pathname truename if-does-not-exist verbose print
 			  :source))))))))
 
@@ -286,9 +298,12 @@
 
 ;;; SB!SYS:GET-DYNAMIC-FOREIGN-SYMBOL-ADDRESS is in foreign.lisp, on
 ;;; platforms that have dynamic loading
+(defun foreign-symbol-address-as-integer-or-nil (foreign-symbol)
+  (or (find-foreign-symbol-in-table foreign-symbol *static-foreign-symbols*)
+      (sb!sys:get-dynamic-foreign-symbol-address foreign-symbol)))
+    
 (defun foreign-symbol-address-as-integer (foreign-symbol)
-  (or (find-foreign-symbol-in-table  foreign-symbol *static-foreign-symbols*)
-      (sb!sys:get-dynamic-foreign-symbol-address foreign-symbol)
+  (or (foreign-symbol-address-as-integer-or-nil foreign-symbol)
       (error "unknown foreign symbol: ~S" foreign-symbol)))
 
 (defun foreign-symbol-address (symbol)