-(in-package "SB!VM")
-
-(def!constant n-word-bits 32
- "Number of bits per word where a word holds one lisp descriptor.")
+;;;; This software is part of the SBCL system. See the README file for
+;;;; more information.
+;;;;
+;;;; This software is derived from the CMU CL system, which was
+;;;; written at Carnegie Mellon University and released into the
+;;;; public domain. The software is in the public domain and is
+;;;; provided with absolutely no warranty. See the COPYING and CREDITS
+;;;; files for more information.
-(def!constant n-byte-bits 8
- "Number of bits per byte where a byte is the smallest addressable object.")
+(in-package "SB!VM")
+\f
+;;;; Machine Architecture parameters:
+(eval-when (:compile-toplevel :load-toplevel :execute)
-(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits)))
- "Number of bits to shift between word addresses and byte addresses.")
+;;; number of bits per word where a word holds one lisp descriptor
+(def!constant n-word-bits 32)
-(def!constant n-word-bytes (/ n-word-bits n-byte-bits)
- "Number of bytes in a word.")
+;;; the natural width of a machine word (as seen in e.g. register width,
+;;; address space)
+(def!constant n-machine-word-bits 32)
+;;; 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)
(def!constant float-overflow-trap-bit (ash 1 2))
(def!constant float-divide-by-zero-trap-bit (ash 1 3))
(def!constant float-invalid-trap-bit (ash 1 4))
+(def!constant float-unimplemented-trap-bit (ash 1 5))
(def!constant float-round-to-nearest 0)
(def!constant float-round-to-zero 1)
(defconstant-eqx float-rounding-mode (byte 2 0) #'equalp)
(defconstant-eqx float-sticky-bits (byte 5 2) #'equalp)
(defconstant-eqx float-traps-byte (byte 5 7) #'equalp)
-(defconstant-eqx float-exceptions-byte (byte 5 12) #'equalp)
+(defconstant-eqx float-exceptions-byte (byte 6 12) #'equalp)
(defconstant-eqx float-condition-bit (ash 1 23) #'equalp)
-(def!constant float-fast-bit 0) ; No fast mode on PMAX.
+(def!constant float-fast-bit (ash 1 24))
-\f
;;;; Description of the target address space.
-;;; Where to put the different spaces.
-;;;
-(def!constant read-only-space-start #x01000000)
-(def!constant read-only-space-end #x05000000)
-
-(def!constant static-space-start #x06000000)
-(def!constant static-space-end #x08000000)
-
-(def!constant dynamic-space-start #x08000000)
-(def!constant dynamic-space-end #x0c000000)
-
-(def!constant dynamic-0-space-start #x08000000)
-(def!constant dynamic-0-space-end #x0c000000)
-(def!constant dynamic-1-space-start #x0c000000)
-(def!constant dynamic-1-space-end #x10000000)
+#!+irix
+(progn
+ ;; Where to put the different spaces.
+ ;; Old definitions, might be still relevant for an IRIX port.
+ ;;
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x05000000)
+
+ (def!constant static-space-start #x06000000)
+ (def!constant static-space-end #x08000000)
+
+ (def!constant dynamic-0-space-start #x08000000)
+ (def!constant dynamic-0-space-end #x0c000000)
+ (def!constant dynamic-1-space-start #x0c000000)
+ (def!constant dynamic-1-space-end #x10000000))
+
+#!+linux
+(progn
+ ;; Where to put the address spaces on Linux.
+ ;;
+ ;; C runtime executable segment starts at 0x00400000
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x07ff0000)
+
+ (def!constant static-space-start #x08000000)
+ (def!constant static-space-end #x0fff0000)
+ ;; C runtime read/write segment starts at 0x10000000, heap and DSOs
+ ;; start at 0x2a000000
+ (def!constant dynamic-0-space-start #x30000000)
+ (def!constant dynamic-0-space-end #x4fff0000)
+ (def!constant dynamic-1-space-start #x50000000)
+ (def!constant dynamic-1-space-end #x6fff0000)
+
+ (def!constant linkage-table-space-start #x70000000)
+ (def!constant linkage-table-space-end #x71000000)
+ (def!constant linkage-table-entry-size 16)
+
+ ;; C stack grows downward from 0x80000000
+ )
+
+); eval-when
\f
;;;; Other non-type constants.
-(defenum (:suffix -flag)
- atomic
- interrupted)
-
-(defenum (:suffix -trap :start 8)
- halt
- pending-interrupt
- error
- cerror
- breakpoint
- fun-end-breakpoint
- after-breakpoint)
-
-(defenum (:prefix trace-table-)
- normal
- call-site
- fun-prologue
- fun-epilogue)
+(defenum ()
+ atomic-flag
+ interrupted-flag)
+
+(defenum (:start 8)
+ halt-trap
+ pending-interrupt-trap
+ error-trap
+ cerror-trap
+ breakpoint-trap
+ fun-end-breakpoint-trap
+ after-breakpoint-trap
+ unused-trap
+ pseudo-atomic-trap
+ object-not-list-trap
+ object-not-instance-trap
+ single-step-around-trap
+ single-step-before-trap)
\f
;;;; Static symbols.
;;; The fdefn objects for the static functions are loaded into static
;;; space directly after the static symbols. That way, the raw-addr
;;; can be loaded directly out of them by indirecting relative to NIL.
-;;;
(defparameter *static-symbols*
- '(t
-
- *posix-argv*
-
- sb!impl::sub-gc
- sb!kernel::internal-error
- sb!kernel::control-stack-exhausted-error
- sb!di::handle-breakpoint
- sb!impl::fdefinition-object
-
- ;; Free Pointers
- *read-only-space-free-pointer*
- *static-space-free-pointer*
- *initial-dynamic-space-free-pointer*
-
- ;; Things needed for non-local-exit.
- *current-catch-block*
- *current-unwind-protect-block*
-
- ;; Interrupt Handling
- *free-interrupt-context-index*
- sb!unix::*interrupts-enabled*
- sb!unix::*interrupt-pending*
- ))
+ (append
+ *common-static-symbols*
+ *c-callable-static-symbols*
+ '()))
(defparameter *static-funs*
- '(sb!kernel:two-arg-+
- sb!kernel:two-arg--
- sb!kernel:two-arg-*
- sb!kernel:two-arg-/
- sb!kernel:two-arg-<
- sb!kernel:two-arg->
+ '(sb!kernel:two-arg-+
+ sb!kernel:two-arg--
+ sb!kernel:two-arg-*
+ sb!kernel:two-arg-/
+ sb!kernel:two-arg-<
+ sb!kernel:two-arg->
sb!kernel:two-arg-=
- sb!kernel:two-arg-<=
- sb!kernel:two-arg->=
- sb!kernel:two-arg-/=
- eql
+ sb!kernel:two-arg-<=
+ sb!kernel:two-arg->=
+ sb!kernel:two-arg-/=
+ eql
sb!kernel:%negate
- sb!kernel:two-arg-and
- sb!kernel:two-arg-ior
+ sb!kernel:two-arg-and
+ sb!kernel:two-arg-ior
sb!kernel:two-arg-xor
- length
- sb!kernel:two-arg-gcd
+ length
+ sb!kernel:two-arg-gcd
sb!kernel:two-arg-lcm))
projects / sbcl.git / blobdiff