(defvar *required-alignment*
#+(and ppc darwin) 16
- #+(and ppc linux) 16
+ #+(and ppc linux) 8
#+x86-64 16
#+mips 8
- #+x86 4
+ #+(and x86 (not darwin)) 4
+ #+(and x86 darwin) 16
#-(or x86 x86-64 mips (and ppc (or darwin linux))) (error "Unknown platform"))
;;;; Build the offset-tool as regular excutable, and run it with
;;;; number.
(run "cc"
- #+x86-64 "-fPIC"
+ #+(and (or linux freebsd) (or x86-64 ppc mips)) "-fPIC"
+ #+(and x86-64 darwin) "-arch" #+(and x86-64 darwin) "x86_64"
"stack-alignment-offset.c" "-o" "stack-alignment-offset")
(defparameter *good-offset*
;;;; Build the tool again, this time as a shared object, and load it
(run "cc" "stack-alignment-offset.c"
- #+x86-64 "-fPIC"
+ #+(and (not darwin) (or x86-64 ppc mips)) "-fPIC"
+ #+(and x86-64 darwin) "-arch" #+(and x86-64 darwin) "x86_64"
#+darwin "-bundle" #-darwin "-shared"
"-o" "stack-alignment-offset.so")
-(load-shared-object "stack-alignment-offset.so")
+(load-shared-object (truename "stack-alignment-offset.so"))
(define-alien-routine stack-alignment-offset int (alignment int))
(define-alien-routine trampoline int (callback (function int)))
(assert (= *good-offset* (trampoline (alien-lambda int ()
(stack-alignment-offset *required-alignment*))))))
+(delete-file "stack-alignment-offset")
+(delete-file "stack-alignment-offset.so")
+
;;;; success!