;;; addressable object
(def!constant n-byte-bits 8)
+;;; 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)
;;; comment from CMU CL:
;;; 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!
+;;; * 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.
#!+win32
(progn
- (def!constant read-only-space-start #x02000000)
- (def!constant read-only-space-end #x047ff000)
+ (def!constant read-only-space-start #x22000000)
+ (def!constant read-only-space-end #x220ff000)
- (def!constant static-space-start #x05000000)
- (def!constant static-space-end #x07fff000)
+ (def!constant static-space-start #x22100000)
+ (def!constant static-space-end #x221ff000)
- (def!constant dynamic-space-start #x09000000)
- (def!constant dynamic-space-end #x29000000)
+ (def!constant dynamic-space-start #x22300000)
+ (def!constant dynamic-space-end #x42300000)
- (def!constant linkage-table-space-start #x30000000)
- (def!constant linkage-table-space-end #x40000000))
+ (def!constant linkage-table-space-start #x22200000)
+ (def!constant linkage-table-space-end #x222ff000))
#!+linux
(progn
(def!constant read-only-space-start #x01000000)
- (def!constant read-only-space-end #x037ff000)
+ (def!constant read-only-space-end #x010ff000)
- (def!constant static-space-start #x05000000)
- (def!constant static-space-end #x07fff000)
+ (def!constant static-space-start #x01100000)
+ (def!constant static-space-end #x011ff000)
(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))
+ (def!constant linkage-table-space-start #x01200000)
+ (def!constant linkage-table-space-end #x012ff000))
#!+sunos
(progn
(def!constant read-only-space-start #x20000000)
- (def!constant read-only-space-end #x2ffff000)
+ (def!constant read-only-space-end #x200ff000)
- (def!constant static-space-start #x40000000)
- (def!constant static-space-end #x42fff000)
+ (def!constant static-space-start #x20100000)
+ (def!constant static-space-end #x201ff000)
(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))
+ (def!constant linkage-table-space-start #x20200000)
+ (def!constant linkage-table-space-end #x202ff000))
#!+freebsd
(progn
- (def!constant read-only-space-start #x10000000)
- (def!constant read-only-space-end #x1ffff000)
+ (def!constant read-only-space-start #x01000000)
+ (def!constant read-only-space-end #x010ff000)
- (def!constant static-space-start #x30000000)
- (def!constant static-space-end #x37fff000)
+ (def!constant static-space-start #x01100000)
+ (def!constant static-space-end #x011ff000)
- (def!constant dynamic-space-start #x48000000)
- (def!constant dynamic-space-end #x88000000)
+ (def!constant dynamic-space-start #x58000000)
+ (def!constant dynamic-space-end #x98000000)
- ;; In CMUCL: 0xB0000000->0xB1000000
- (def!constant linkage-table-space-start #x90000000)
- (def!constant linkage-table-space-end #x91000000))
+ (def!constant linkage-table-space-start #x01200000)
+ (def!constant linkage-table-space-end #x012ff000))
#!+openbsd
(progn
- (def!constant read-only-space-start #x40000000)
- (def!constant read-only-space-end #x47fff000)
+ (def!constant read-only-space-start #x1b000000)
+ (def!constant read-only-space-end #x1b0ff000)
- (def!constant static-space-start #x50000000)
- (def!constant static-space-end #x5ffff000)
+ (def!constant static-space-start #x1b100000)
+ (def!constant static-space-end #x1b1ff000)
- (def!constant dynamic-space-start #x80000000)
- (def!constant dynamic-space-end #xA0000000)
+ (def!constant dynamic-space-start #x40000000)
+ (def!constant dynamic-space-end #x5bfff000)
- ;; In CMUCL: 0xB0000000->0xB1000000
- (def!constant linkage-table-space-start #xA0000000)
- (def!constant linkage-table-space-end #xA1000000))
+ (def!constant linkage-table-space-start #x1b200000)
+ (def!constant linkage-table-space-end #x1b2ff000))
#!+netbsd
(progn
(def!constant read-only-space-start #x20000000)
- (def!constant read-only-space-end #x2ffff000)
+ (def!constant read-only-space-end #x200ff000)
- (def!constant static-space-start #x30000000)
- (def!constant static-space-end #x37fff000)
+ (def!constant static-space-start #x20100000)
+ (def!constant static-space-end #x201ff000)
(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))
+ (def!constant linkage-table-space-start #x20200000)
+ (def!constant linkage-table-space-end #x202ff000))
#!+darwin
(progn
(def!constant read-only-space-start #x04000000)
- (def!constant read-only-space-end #x07ff8000)
+ (def!constant read-only-space-end #x040ff000)
- (def!constant static-space-start #x08000000)
- (def!constant static-space-end #x097fff00)
+ (def!constant static-space-start #x04100000)
+ (def!constant static-space-end #x041ff000)
(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))
+ (def!constant linkage-table-space-start #x04200000)
+ (def!constant linkage-table-space-end #x042ff000))
;;; 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-around
- single-step-before)
-;;; 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 24)
- 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)
\f
;;;; static symbols
;; For GC-AND-SAVE
*restart-lisp-function*
+ ;; For the UNWIND-TO-FRAME-AND-CALL VOP
+ *unwind-to-frame-function*
+
;; Needed for callbacks to work across saving cores. see
;; ALIEN-CALLBACK-ASSEMBLER-WRAPPER in c-call.lisp for gory
;; details.
projects / sbcl.git / blobdiff