;;; addressable object
(def!constant n-byte-bits 8)
-;;; The size in bytes of the GENCGC pages. Should be a multiple of the
-;;; architecture code size.
-(def!constant gencgc-page-size 4096)
+;;; The minimum immediate offset in a memory-referencing instruction.
+(def!constant minimum-immediate-offset (- (expt 2 31)))
+
+;;; The maximum immediate offset in a memory-referencing instruction.
+(def!constant maximum-immediate-offset (1- (expt 2 31)))
(def!constant float-sign-shift 31)
;;; 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)
-
- (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 static-space-start #x30000000)
- (def!constant static-space-end #x37fff000)
-
- (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))
-
-
-#!+darwin
-(progn
- (def!constant read-only-space-start #x01000000)
- (def!constant read-only-space-end #x04ff8000)
-
- (def!constant static-space-start #x08000000)
- (def!constant static-space-end #x097fff00)
-
- (def!constant dynamic-space-start #x10000000)
- (def!constant dynamic-space-end #x6ffff000)
-
- (def!constant linkage-table-space-start #x0a000000)
- (def!constant linkage-table-space-end #x0b000000))
+;;; * For FreeBSD, the requirement of user and kernel space are
+;;; getting larger, and users tend to extend them.
+;;; If MAXDSIZ is extended from 512MB to 1GB, we can't use up to
+;;; around 0x50000000.
+;;; And if KVA_PAGES is extended from 1GB to 1.5GB, we can't use
+;;; down to around 0xA0000000.
+;;; So we use 0x58000000--0x98000000 for dynamic space.
+;;; * OpenBSD address space changes for W^X as well as malloc()
+;;; randomization made the old addresses unsafe.
+;;; ** By default (linked without -Z option):
+;;; The executable's text segment starts at #x1c000000 and the
+;;; data segment MAXDSIZ bytes higher, at #x3c000000. Shared
+;;; library text segments start randomly between #x00002000 and
+;;; #x10002000, with the data segment MAXDSIZ bytes after that.
+;;; ** If the -Z linker option is used:
+;;; The executable's text and data segments simply start at
+;;; #x08048000, data immediately following text. Shared library
+;;; text and data is placed as if allocated by malloc().
+;;; ** In both cases, the randomized range for malloc() starts
+;;; MAXDSIZ bytes after the end of the data segment (#x48048000
+;;; with -Z, #x7c000000 without), and extends 256 MB.
+;;; ** The read only, static, and linkage table spaces should be
+;;; safe with and without -Z if they are located just before
+;;; #x1c000000.
+;;; ** Ideally the dynamic space should be at #x94000000, 64 MB
+;;; after the end of the highest random malloc() address.
+;;; Unfortunately the dynamic space must be in the lower half
+;;; of the address space, where there are no large areas which
+;;; are unused both with and without -Z. So we break -Z by
+;;; starting at #x40000000. By only using 512 - 64 MB we can
+;;; run under the default 512 MB data size resource limit.
+
+;;; NetBSD configuration used to have this comment regarding the linkage
+;;; table: "In CMUCL: 0xB0000000->0xB1000000"
+
+#!+win32 (!gencgc-space-setup #x22000000 nil nil #x10000)
+#!+linux (!gencgc-space-setup #x01000000 #x09000000)
+#!+sunos (!gencgc-space-setup #x20000000 #x48000000)
+#!+freebsd (!gencgc-space-setup #x01000000 #x58000000)
+#!+openbsd (!gencgc-space-setup #x1b000000 #x40000000)
+#!+netbsd (!gencgc-space-setup #x20000000 #x60000000)
+#!+darwin (!gencgc-space-setup #x04000000 #x10000000)
;;; Size of one linkage-table entry in bytes.
(def!constant linkage-table-entry-size 8)
\f
;;;; other miscellaneous constants
-(defenum (:suffix -trap :start 8)
- halt
- pending-interrupt
- error
- cerror
- breakpoint
- fun-end-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)
-;;; (DEF-ENUM PENDING-INTERRUPT-TRAP)
-;;; ..)
-;;; for the benefit of anyone doing a lexical search for definitions
-;;; of these symbols.
-
-(defenum (:prefix object-not- :suffix -trap :start 16)
- list
- instance)
-
-(defenum (:prefix trace-table-)
- normal
- call-site
- fun-prologue
- fun-epilogue)
+(defenum (:start 8)
+ halt-trap
+ pending-interrupt-trap
+ error-trap
+ cerror-trap
+ breakpoint-trap
+ fun-end-breakpoint-trap
+ single-step-around-trap
+ single-step-before-trap)
+
+(defenum (:start 24)
+ object-not-list-trap
+ object-not-instance-trap
+ #!+sb-safepoint global-safepoint-trap
+ #!+sb-safepoint csp-safepoint-trap)
\f
;;;; 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*
+ *pseudo-atomic-bits*
*allocation-pointer*
*binding-stack-pointer*
sb!alien::*enter-alien-callback*
;; see comments in ../x86-64/parms.lisp
- sb!pcl::..slot-unbound..
- )))
+ sb!pcl::..slot-unbound..)))
(defparameter *static-funs*
'(length
sb!kernel:two-arg-ior
sb!kernel:two-arg-xor
sb!kernel:two-arg-gcd
- sb!kernel:two-arg-lcm))
+ sb!kernel:two-arg-lcm
+ sb!kernel:%coerce-callable-to-fun))
\f
-;;;; stuff added by jrd
-
-;;; FIXME: Is this used? Delete it or document it.
-;;; cf the sparc PARMS.LISP
-(defparameter *assembly-unit-length* 8)
+#!+win32
+(defconstant +win32-tib-arbitrary-field-offset+ #.(+ #xE10 (* 4 63)))
projects / sbcl.git / blobdiff