\f
;;;; machine architecture parameters
-(defconstant word-bits 32
- #!+sb-doc
- "Number of bits per word where a word holds one lisp descriptor.")
+;;; the number of bits per word, where a word holds one lisp descriptor
+(def!constant n-word-bits 32)
-(defconstant byte-bits 8
- #!+sb-doc
- "Number of bits per byte where a byte is the smallest addressable object.")
+;;; the natural width of a machine word (as seen in e.g. register width,
+;;; address space)
+(def!constant n-machine-word-bits 32)
-(defconstant word-shift (1- (integer-length (/ word-bits byte-bits)))
- #!+sb-doc
- "Number of bits to shift between word addresses and byte addresses.")
+;;; the number of bits per byte, where a byte is the smallest
+;;; addressable object
+(def!constant n-byte-bits 8)
-(defconstant word-bytes (/ word-bits byte-bits)
- #!+sb-doc
- "Number of bytes in a word.")
+;;; The size in bytes of the GENCGC pages. Should be a multiple of the
+;;; architecture code size.
+(def!constant gencgc-page-size 4096)
-(defconstant float-sign-shift 31)
+(def!constant float-sign-shift 31)
;;; comment from CMU CL:
;;; These values were taken from the alpha code. The values for
;;; bias and exponent min/max are not the same as shown in the 486 book.
;;; They may be correct for how Python uses them.
-(defconstant single-float-bias 126) ; Intel says 127.
+(def!constant single-float-bias 126) ; Intel says 127.
(defconstant-eqx single-float-exponent-byte (byte 8 23) #'equalp)
(defconstant-eqx single-float-significand-byte (byte 23 0) #'equalp)
;;; comment from CMU CL:
;;; The 486 book shows the exponent range -126 to +127. The Lisp
;;; code that uses these values seems to want already biased numbers.
-(defconstant single-float-normal-exponent-min 1)
-(defconstant single-float-normal-exponent-max 254)
-(defconstant single-float-hidden-bit (ash 1 23))
-(defconstant single-float-trapping-nan-bit (ash 1 22))
+(def!constant single-float-normal-exponent-min 1)
+(def!constant single-float-normal-exponent-max 254)
+(def!constant single-float-hidden-bit (ash 1 23))
+(def!constant single-float-trapping-nan-bit (ash 1 22))
-(defconstant double-float-bias 1022)
+(def!constant double-float-bias 1022)
(defconstant-eqx double-float-exponent-byte (byte 11 20) #'equalp)
(defconstant-eqx double-float-significand-byte (byte 20 0) #'equalp)
-(defconstant double-float-normal-exponent-min 1)
-(defconstant double-float-normal-exponent-max #x7FE)
-(defconstant double-float-hidden-bit (ash 1 20))
-(defconstant double-float-trapping-nan-bit (ash 1 19))
+(def!constant double-float-normal-exponent-min 1)
+(def!constant double-float-normal-exponent-max #x7FE)
+(def!constant double-float-hidden-bit (ash 1 20))
+(def!constant double-float-trapping-nan-bit (ash 1 19))
-(defconstant long-float-bias 16382)
+(def!constant long-float-bias 16382)
(defconstant-eqx long-float-exponent-byte (byte 15 0) #'equalp)
(defconstant-eqx long-float-significand-byte (byte 31 0) #'equalp)
-(defconstant long-float-normal-exponent-min 1)
-(defconstant long-float-normal-exponent-max #x7FFE)
-(defconstant long-float-hidden-bit (ash 1 31)) ; actually not hidden
-(defconstant long-float-trapping-nan-bit (ash 1 30))
+(def!constant long-float-normal-exponent-min 1)
+(def!constant long-float-normal-exponent-max #x7FFE)
+(def!constant long-float-hidden-bit (ash 1 31)) ; actually not hidden
+(def!constant long-float-trapping-nan-bit (ash 1 30))
-(defconstant single-float-digits
+(def!constant single-float-digits
(+ (byte-size single-float-significand-byte) 1))
-(defconstant double-float-digits
- (+ (byte-size double-float-significand-byte) word-bits 1))
+(def!constant double-float-digits
+ (+ (byte-size double-float-significand-byte) n-word-bits 1))
-(defconstant long-float-digits
- (+ (byte-size long-float-significand-byte) word-bits 1))
+(def!constant long-float-digits
+ (+ (byte-size long-float-significand-byte) n-word-bits 1))
;;; pfw -- from i486 microprocessor programmer's reference manual
-(defconstant float-invalid-trap-bit (ash 1 0))
-(defconstant float-denormal-trap-bit (ash 1 1))
-(defconstant float-divide-by-zero-trap-bit (ash 1 2))
-(defconstant float-overflow-trap-bit (ash 1 3))
-(defconstant float-underflow-trap-bit (ash 1 4))
-(defconstant float-inexact-trap-bit (ash 1 5))
-
-(defconstant float-round-to-nearest 0)
-(defconstant float-round-to-negative 1)
-(defconstant float-round-to-positive 2)
-(defconstant float-round-to-zero 3)
+(def!constant float-invalid-trap-bit (ash 1 0))
+(def!constant float-denormal-trap-bit (ash 1 1))
+(def!constant float-divide-by-zero-trap-bit (ash 1 2))
+(def!constant float-overflow-trap-bit (ash 1 3))
+(def!constant float-underflow-trap-bit (ash 1 4))
+(def!constant float-inexact-trap-bit (ash 1 5))
+
+(def!constant float-round-to-nearest 0)
+(def!constant float-round-to-negative 1)
+(def!constant float-round-to-positive 2)
+(def!constant float-round-to-zero 3)
+
+(def!constant float-precision-24-bit 0)
+(def!constant float-precision-53-bit 2)
+(def!constant float-precision-64-bit 3)
(defconstant-eqx float-rounding-mode (byte 2 10) #'equalp)
(defconstant-eqx float-sticky-bits (byte 6 16) #'equalp)
(defconstant-eqx float-traps-byte (byte 6 0) #'equalp)
(defconstant-eqx float-exceptions-byte (byte 6 16) #'equalp)
(defconstant-eqx float-precision-control (byte 2 8) #'equalp)
-(defconstant float-fast-bit 0) ; no fast mode on x86
+(def!constant float-fast-bit 0) ; no fast mode on x86
\f
;;;; description of the target address space
;;; use. (They want to use this address range even if we try to
;;; reserve it with a call to validate() as the first operation in
;;; main().)
+;;; * For NetBSD 2.0, the following ranges are used by normal
+;;; executables and mmap:
+;;; ** Executables are (by default) loaded at 0x08048000.
+;;; ** The break for the sbcl runtime seems to end around 0x08400000
+;;; We set read only space around 0x20000000, static
+;;; space around 0x30000000, all ending below 0x37fff000
+;;; ** ld.so and other mmap'ed stuff like shared libs start around
+;;; 0x48000000
+;;; We set dynamic space between 0x60000000 and 0x98000000
+;;; ** Bottom of the stack is typically not below 0xb0000000
+;;; FYI, this can be looked at with the "pmap" program, and if you
+;;; set the top-down mmap allocation option in the kernel (not yet
+;;; the default), all bets are totally off!
+
+#!+win32
+(progn
+
+ (def!constant read-only-space-start #x02000000)
+ (def!constant read-only-space-end #x047ff000)
+
+ (def!constant static-space-start #x05000000)
+ (def!constant static-space-end #x07fff000)
+
+ (def!constant dynamic-space-start #x09000000)
+ (def!constant dynamic-space-end #x29000000)
+
+ (def!constant linkage-table-space-start #x30000000)
+ (def!constant linkage-table-space-end #x40000000))
#!+linux
(progn
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x037ff000)
+
+ (def!constant static-space-start #x05000000)
+ (def!constant static-space-end #x07fff000)
+
+ (def!constant dynamic-space-start #x09000000)
+ (def!constant dynamic-space-end #x29000000)
+
+ (def!constant linkage-table-space-start #x70000000)
+ (def!constant linkage-table-space-end #x7ffff000))
+
+#!+sunos
+(progn
+ (def!constant read-only-space-start #x20000000)
+ (def!constant read-only-space-end #x2ffff000)
+
+ (def!constant static-space-start #x40000000)
+ (def!constant static-space-end #x42fff000)
+
+ (def!constant dynamic-space-start #x48000000)
+ (def!constant dynamic-space-end #xA0000000)
+
+ (def!constant linkage-table-space-start #xA2000000)
+ (def!constant linkage-table-space-end #xA3000000))
+
+#!+freebsd
+(progn
+ (def!constant read-only-space-start #x10000000)
+ (def!constant read-only-space-end #x1ffff000)
+
+ (def!constant static-space-start #x30000000)
+ (def!constant static-space-end #x37fff000)
+
+ (def!constant dynamic-space-start #x48000000)
+ (def!constant dynamic-space-end #x88000000)
+
+ ;; In CMUCL: 0xB0000000->0xB1000000
+ (def!constant linkage-table-space-start #x90000000)
+ (def!constant linkage-table-space-end #x91000000))
+
+#!+openbsd
+(progn
+ (def!constant read-only-space-start #x40000000)
+ (def!constant read-only-space-end #x47fff000)
+
+ (def!constant static-space-start #x50000000)
+ (def!constant static-space-end #x5ffff000)
- (defconstant read-only-space-start #x01000000)
- (defconstant read-only-space-end #x037ff000)
+ (def!constant dynamic-space-start #x80000000)
+ (def!constant dynamic-space-end #xA0000000)
+
+ ;; In CMUCL: 0xB0000000->0xB1000000
+ (def!constant linkage-table-space-start #xA0000000)
+ (def!constant linkage-table-space-end #xA1000000))
+
+#!+netbsd
+(progn
+ (def!constant read-only-space-start #x20000000)
+ (def!constant read-only-space-end #x2ffff000)
- (defconstant static-space-start #x05000000)
- (defconstant static-space-end #x07fff000)
+ (def!constant static-space-start #x30000000)
+ (def!constant static-space-end #x37fff000)
- (defconstant dynamic-space-start #x09000000)
- (defconstant dynamic-space-end #x29000000)
+ (def!constant dynamic-space-start #x60000000)
+ (def!constant dynamic-space-end #x98000000)
- (defconstant control-stack-start #x50000000)
- (defconstant control-stack-end #x57fff000)
+ ;; In CMUCL: 0xB0000000->0xB1000000
+ (def!constant linkage-table-space-start #xA0000000)
+ (def!constant linkage-table-space-end #xA1000000))
- (defconstant binding-stack-start #x60000000)
- (defconstant binding-stack-end #x67fff000))
-#!+bsd
+#!+darwin
(progn
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x04ff8000)
- (defconstant read-only-space-start #x10000000)
- (defconstant read-only-space-end #x1ffff000)
+ (def!constant static-space-start #x08000000)
+ (def!constant static-space-end #x097fff00)
- (defconstant static-space-start
- #!+freebsd #x30000000
- #!+openbsd #x28000000)
- (defconstant static-space-end #x37fff000)
+ (def!constant dynamic-space-start #x10000000)
+ (def!constant dynamic-space-end #x6ffff000)
- (defconstant binding-stack-start #x38000000)
- (defconstant binding-stack-end #x3ffff000)
+ (def!constant linkage-table-space-start #x0a000000)
+ (def!constant linkage-table-space-end #x0b000000))
- (defconstant control-stack-start
- #+freebsd #x40000000
- #+openbsd #x48000000)
- (defconstant control-stack-end
- #+freebsd #x47fff000
- #+openbsd #x4ffff000)
- (defconstant dynamic-space-start
- #+freebsd #x48000000
- #+openbsd #x50000000)
- (defconstant dynamic-space-end #x88000000))
+;;; Size of one linkage-table entry in bytes.
+(def!constant linkage-table-entry-size 8)
;;; Given that NIL is the first thing allocated in static space, we
;;; know its value at compile time:
-(defconstant nil-value (+ static-space-start #xb))
+(def!constant nil-value (+ static-space-start #xb))
\f
;;;; other miscellaneous constants
cerror
breakpoint
fun-end-breakpoint
- single-step-breakpoint)
+ single-step-breakpoint
+ #!+win32 context-restore) ;; HACK: The Win32 exception handling system does wrong things with this.
;;; FIXME: It'd be nice to replace all the DEFENUMs with something like
;;; (WITH-DEF-ENUM (:START 8)
;;; (DEF-ENUM HALT-TRAP)
(defenum (:prefix trace-table-)
normal
call-site
- function-prologue
- function-epilogue)
+ fun-prologue
+ fun-epilogue)
\f
;;;; static symbols
(defvar *allocation-pointer*)
(defvar *binding-stack-pointer*)
-;;; FIXME: *!INITIAL-FDEFN-OBJECTS* and !COLD-INIT probably don't need
-;;; to be in the static symbols table any more. Also, if
-;;; *INTERNAL-GC-TRIGGER* really is not used, we can punt it.
(defparameter *static-symbols*
- '(t
-
- ;; The C startup code must fill these in.
- *posix-argv*
- sb!impl::*!initial-fdefn-objects*
-
- ;; functions that the C code needs to call
- maybe-gc
- sb!kernel::internal-error
- sb!di::handle-breakpoint
- fdefinition-object
-
- ;; free pointers
- ;;
- ;; Note that these are FIXNUM word counts, not (as one might
- ;; expect) byte counts or SAPs. The reason seems to be that by
- ;; representing them this way, we can avoid consing bignums.
- ;; -- WHN 2000-10-02
- *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*
- *eval-stack-top*
- sb!vm::*alien-stack*
-
- ;; interrupt handling
- *pseudo-atomic-atomic*
- *pseudo-atomic-interrupted*
- sb!unix::*interrupts-enabled*
- sb!unix::*interrupt-pending*
- *free-interrupt-context-index*
-
- sb!vm::*allocation-pointer*
- sb!vm::*binding-stack-pointer*
- sb!vm::*internal-gc-trigger* ; Not used.
-
- ;; the floating point constants
- sb!vm::*fp-constant-0d0*
- sb!vm::*fp-constant-1d0*
- sb!vm::*fp-constant-0s0*
- sb!vm::*fp-constant-1s0*
- ;; The following are all long-floats.
- sb!vm::*fp-constant-0l0*
- sb!vm::*fp-constant-1l0*
- sb!vm::*fp-constant-pi*
- sb!vm::*fp-constant-l2t*
- sb!vm::*fp-constant-l2e*
- sb!vm::*fp-constant-lg2*
- sb!vm::*fp-constant-ln2*
-
- ;; The ..SLOT-UNBOUND.. symbol is static in order to optimise the
- ;; common slot unbound check.
- ;;
- ;; FIXME: In SBCL, the CLOS code has become sufficiently tightly
- ;; integrated into the system that it'd probably make sense to use
- ;; the ordinary unbound marker for this.
- sb!pcl::..slot-unbound..))
-
-(defparameter *static-functions*
+ (append
+ *common-static-symbols*
+ *c-callable-static-symbols*
+ '(*alien-stack*
+
+ ;; interrupt handling
+ *pseudo-atomic-atomic*
+ *pseudo-atomic-interrupted*
+ #!+sb-thread *stop-for-gc-pending*
+ #!+sb-thread *free-tls-index*
+ #!+sb-thread *tls-index-lock*
+
+ *allocation-pointer*
+ *binding-stack-pointer*
+
+ ;; the floating point constants
+ *fp-constant-0d0*
+ *fp-constant-1d0*
+ *fp-constant-0f0*
+ *fp-constant-1f0*
+ ;; The following are all long-floats.
+ *fp-constant-0l0*
+ *fp-constant-1l0*
+ *fp-constant-pi*
+ *fp-constant-l2t*
+ *fp-constant-l2e*
+ *fp-constant-lg2*
+ *fp-constant-ln2*
+
+ ;; For GC-AND-SAVE
+ *restart-lisp-function*
+
+ ;; Needed for callbacks to work across saving cores. see
+ ;; ALIEN-CALLBACK-ASSEMBLER-WRAPPER in c-call.lisp for gory
+ ;; details.
+ sb!alien::*enter-alien-callback*
+
+ ;; see comments in ../x86-64/parms.lisp
+ sb!pcl::..slot-unbound..
+ )))
+
+(defparameter *static-funs*
'(length
sb!kernel:two-arg-+
sb!kernel:two-arg--