message

[sbcl.git] / src / compiler / ppc / parms.lisp

diff --git a/src/compiler/ppc/parms.lisp b/src/compiler/ppc/parms.lisp
index 4e05dd7..a782cc8 100644 (file)
--- a/src/compiler/ppc/parms.lisp
+++ b/src/compiler/ppc/parms.lisp
@@ -13,21 +13,16 @@
 
 (in-package "SB!VM")
 
-(def!constant n-word-bits 32
-  "Number of bits per word where a word holds one lisp descriptor.")
+;;; number of bits per word where a word holds one lisp descriptor
+(def!constant n-word-bits 32)
 
 ;;; the natural width of a machine word (as seen in e.g. register width,
 ;;; address space)
 (def!constant n-machine-word-bits 32)
 
-(def!constant n-byte-bits 8
-  "Number of bits per byte where a byte is the smallest addressable object.")
-
-(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits)))
-  "Number of bits to shift between word addresses and byte addresses.")
-
-(def!constant n-word-bytes (/ n-word-bits n-byte-bits)
-  "Number of bytes in a word.")
+;;; number of bits per byte where a byte is the smallest addressable
+;;; object
+(def!constant n-byte-bits 8)
 
 
 (def!constant float-sign-shift 31)
@@ -86,19 +81,7 @@
 
 (def!constant float-fast-bit 2)                ; Non-IEEE mode
 
-
-;;; NUMBER-STACK-DISPLACEMENT
-;;;
-;;; The number of bytes reserved above the number stack pointer.  These
-;;; slots are required by architecture, mostly (?) to make C backtrace
-;;; work. This must be a power of 2 - see BYTES-REQUIRED-FOR-NUMBER-STACK.
-;;; 
-(def!constant number-stack-displacement
-  (* #!-darwin 2
-     #!+darwin 8
-     n-word-bytes))
 \f
-
 ;;; Where to put the different spaces.
 
 (def!constant read-only-space-start #x01000000)
@@ -119,7 +102,11 @@
 (def!constant dynamic-1-space-start #x48000000)
 (def!constant dynamic-1-space-end   #x4ffff000)
 
-
+#+darwin
+(progn
+  (def!constant linkage-table-space-start #x50000000)
+  (def!constant linkage-table-space-end   #x51000000)
+  (def!constant linkage-table-entry-size 16))
 
 \f
 ;;;; Other random constants.
@@ -166,6 +153,8 @@
     sb!impl::sub-gc
     sb!kernel::internal-error
     sb!kernel::control-stack-exhausted-error
+    sb!kernel::undefined-alien-variable-error
+    sb!kernel::undefined-alien-function-error
     sb!di::handle-breakpoint
     sb!impl::fdefinition-object