X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Fparms.lisp;h=8e0623c25e98dd6664292e1109224ced7f24e53d;hb=8f45dd3a5a074998e1aa697ba8f2a8b1b7388427;hp=6a19fc04eaca6c1835c775594a75c34fc85ef7c4;hpb=9ff50feeafa43a62e8f4182f703b7119d1b94b94;p=sbcl.git

diff --git a/src/compiler/x86/parms.lisp b/src/compiler/x86/parms.lisp
index 6a19fc0..8e0623c 100644
--- a/src/compiler/x86/parms.lisp
+++ b/src/compiler/x86/parms.lisp
@@ -159,21 +159,27 @@
 ;;;     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. The only range
+;;;     that is really safe is between the end of the text segment (it
+;;;     starts at #x3C000000) and #x7C000000. However if the -Z linker
+;;;     option is used then the safe range is (probably) #x00001000 to
+;;;     #x48048000, with the text and data segments at #x08048000.
 
 #!+win32
 (progn
 
-  (def!constant read-only-space-start #x02000000)
-  (def!constant read-only-space-end   #x020ff000)
+  (def!constant read-only-space-start #x22000000)
+  (def!constant read-only-space-end   #x220ff000)
 
-  (def!constant static-space-start    #x02100000)
-  (def!constant static-space-end      #x021ff000)
+  (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 #x02200000)
-  (def!constant linkage-table-space-end   #x022ff000))
+  (def!constant linkage-table-space-start #x22200000)
+  (def!constant linkage-table-space-end   #x222ff000))
 
 #!+linux
 (progn
@@ -219,18 +225,18 @@
 
 #!+openbsd
 (progn
-  (def!constant read-only-space-start     #x10000000)
-  (def!constant read-only-space-end       #x100ff000)
+  (def!constant read-only-space-start     #x47000000)
+  (def!constant read-only-space-end       #x470ff000)
 
-  (def!constant static-space-start        #x10100000)
-  (def!constant static-space-end          #x101ff000)
+  (def!constant static-space-start        #x47100000)
+  (def!constant static-space-end          #x471ff000)
 
-  (def!constant dynamic-space-start       #x80000000)
-  (def!constant dynamic-space-end         #xA0000000)
+  (def!constant dynamic-space-start       #x48000000)
+  (def!constant dynamic-space-end         #x78000000)
 
   ;; In CMUCL: 0xB0000000->0xB1000000
-  (def!constant linkage-table-space-start #x10200000)
-  (def!constant linkage-table-space-end   #x102ff000))
+  (def!constant linkage-table-space-start #x47200000)
+  (def!constant linkage-table-space-end   #x472ff000))
 
 #!+netbsd
 (progn