X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Fparms.lisp;h=f12d2930b965f531a05ebb39a94444c14389d507;hb=079ef9dad558ca07cb8178ef428bf738112174fa;hp=8e3ee8ff10b6cea46e2b9b2d8b6d5822ff439add;hpb=e365f2f7a9c66d307b48fee70778f4eaa84bdcc0;p=sbcl.git diff --git a/src/compiler/x86/parms.lisp b/src/compiler/x86/parms.lisp index 8e3ee8f..f12d293 100644 --- a/src/compiler/x86/parms.lisp +++ b/src/compiler/x86/parms.lisp @@ -27,16 +27,14 @@ ;;; the 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) + ;;; the number of bits per byte, where a byte is the smallest ;;; 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)) - (def!constant float-sign-shift 31) ;;; comment from CMU CL: @@ -92,6 +90,10 @@ (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) @@ -131,43 +133,81 @@ ;;; 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! #!+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 read-only-space-start #x01000000) - (def!constant read-only-space-end #x037ff000) + (def!constant dynamic-space-start #x09000000) + (def!constant dynamic-space-end #x29000000) - (def!constant static-space-start #x05000000) - (def!constant static-space-end #x07fff000) + (def!constant linkage-table-space-start #x70000000) + (def!constant linkage-table-space-end #x7ffff000)) - (def!constant dynamic-space-start #x09000000) - (def!constant dynamic-space-end #x29000000) +#!+freebsd +(progn + (def!constant read-only-space-start #x10000000) + (def!constant read-only-space-end #x1ffff000) - (def!constant alternate-signal-stack-start #x58000000)) + (def!constant static-space-start #x30000000) + (def!constant static-space-end #x37fff000) -#!+bsd + (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) - (def!constant read-only-space-start #x10000000) - (def!constant read-only-space-end #x1ffff000) + (def!constant dynamic-space-start #x80000000) + (def!constant dynamic-space-end #xA0000000) - (def!constant static-space-start - #!+freebsd #x30000000 - #!+openbsd #x28000000) - (def!constant static-space-end #x37fff000) + ;; 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 dynamic-space-start - #!+freebsd #x48000000 - #!+openbsd #x50000000) - (def!constant dynamic-space-end #x88000000) - (def!constant alternate-signal-stack-start - #!+freebsd #x44000000 - #!+openbsd #x4c000000)) + (def!constant static-space-start #x30000000) + (def!constant static-space-end #x37fff000) + (def!constant dynamic-space-start #x60000000) + (def!constant dynamic-space-end #x98000000) -;;; don't need alternate-signal-stack-end : it's -start+SIGSTKSZ + ;; 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: @@ -226,11 +266,14 @@ ;; functions that the C code needs to call. When adding to this list, ;; also add a `frob' form in genesis.lisp finish-symbols. - maybe-gc + 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 fdefinition-object + #!+sb-thread sb!thread::handle-thread-exit ;; free pointers ;; @@ -255,12 +298,12 @@ *free-interrupt-context-index* *free-tls-index* - sb!thread::*foreground-thread-stack* *allocation-pointer* *binding-stack-pointer* *binding-stack-start* *control-stack-start* + *control-stack-end* ;; the floating point constants *fp-constant-0d0* @@ -282,7 +325,8 @@ ;; 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