X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcompiler%2Fx86%2Fparms.lisp;h=e53929dd8c8774952d83ddcc02af52891d421747;hb=7fb597b585fc715537ea644f7d84440eca217ca1;hp=dbbde62b63add77f4284bbca309256fc171fab74;hpb=01044af1b8d69fc3899dc0417064c1512223223d;p=sbcl.git diff --git a/src/compiler/x86/parms.lisp b/src/compiler/x86/parms.lisp index dbbde62..e53929d 100644 --- a/src/compiler/x86/parms.lisp +++ b/src/compiler/x86/parms.lisp @@ -35,11 +35,9 @@ ;;; addressable object (def!constant n-byte-bits 8) -;;; the number of bits to shift between word addresses and byte addresses -(def!constant word-shift (1- (integer-length (/ n-word-bits n-byte-bits)))) - -;;; the number of bytes in a word -(def!constant n-word-bytes (/ n-word-bits n-byte-bits)) +;;; The size in bytes of the GENCGC pages. Should be a multiple of the +;;; architecture code size. +(def!constant gencgc-page-size 4096) (def!constant float-sign-shift 31) @@ -47,7 +45,7 @@ ;;; 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. -(def!constant 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: @@ -71,7 +69,7 @@ (defconstant-eqx long-float-significand-byte (byte 31 0) #'equalp) (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-hidden-bit (ash 1 31)) ; actually not hidden (def!constant long-float-trapping-nan-bit (ash 1 30)) (def!constant single-float-digits @@ -84,18 +82,22 @@ (+ (byte-size long-float-significand-byte) n-word-bits 1)) ;;; pfw -- from i486 microprocessor programmer's reference manual -(def!constant float-invalid-trap-bit (ash 1 0)) +(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-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) @@ -149,7 +151,7 @@ ;;; set the top-down mmap allocation option in the kernel (not yet ;;; the default), all bets are totally off! -#!+linux +#!+win32 (progn (def!constant read-only-space-start #x01000000) @@ -161,34 +163,81 @@ (def!constant dynamic-space-start #x09000000) (def!constant dynamic-space-end #x29000000)) -#!+(or freebsd openbsd) +#!+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 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 static-space-start - #!+freebsd #x30000000 - #!+openbsd #x28000000) - (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 dynamic-space-start - #!+freebsd #x48000000 - #!+openbsd #x50000000) - (def!constant dynamic-space-end #x88000000)) + (def!constant static-space-start #x50000000) + (def!constant static-space-end #x5ffff000) + + (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) - (def!constant read-only-space-start #x20000000) - (def!constant read-only-space-end #x2ffff000) + (def!constant static-space-start #x30000000) + (def!constant static-space-end #x37fff000) - (def!constant static-space-start #x30000000) - (def!constant static-space-end #x37fff000) + (def!constant dynamic-space-start #x60000000) + (def!constant dynamic-space-end #x98000000) - (def!constant dynamic-space-start #x60000000) - (def!constant dynamic-space-end #x98000000)) + ;; In CMUCL: 0xB0000000->0xB1000000 + (def!constant linkage-table-space-start #xA0000000) + (def!constant linkage-table-space-end #xA1000000)) +;;; 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: @@ -203,7 +252,8 @@ 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) @@ -250,15 +300,18 @@ 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!kernel::memory-fault-error sb!di::handle-breakpoint fdefinition-object - #!+sb-thread sb!thread::handle-thread-exit + #!+win32 sb!kernel::handle-win32-exception ;; 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. + ;; representing them this way, we can avoid consing bignums. ;; -- WHN 2000-10-02 *read-only-space-free-pointer* *static-space-free-pointer* @@ -275,9 +328,14 @@ sb!unix::*interrupts-enabled* sb!unix::*interrupt-pending* *free-interrupt-context-index* + *gc-inhibit* + #!+sb-thread *stop-for-gc-pending* + *gc-pending* + #!+sb-thread sb!thread::run-interruption *free-tls-index* - + *tls-index-lock* + *allocation-pointer* *binding-stack-pointer* *binding-stack-start* @@ -298,13 +356,17 @@ *fp-constant-lg2* *fp-constant-ln2* + ;; For GC-AND-SAVE + *restart-lisp-function* + ;; 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..)) + sb!pcl::..slot-unbound.. + )) (defparameter *static-funs* '(length