X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fx86%2Fbackend-parms.lisp;h=a1802f5e71a0584621fb8add3ae4829552bad68f;hb=902e93736a0888aa6b04dc328b1eb328423bf426;hp=b89161808c6d012cf82bdae2ef94d36bb4f04f37;hpb=2716573f357f204c5f546d1d34d285dd24ff43a1;p=sbcl.git

diff --git a/src/compiler/x86/backend-parms.lisp b/src/compiler/x86/backend-parms.lisp
index b891618..a1802f5 100644
--- a/src/compiler/x86/backend-parms.lisp
+++ b/src/compiler/x86/backend-parms.lisp
@@ -17,24 +17,27 @@
 
 ;;;; compiler constants
 
-(setf *backend-fasl-file-type* "x86f")
-(setf *backend-fasl-file-implementation* :x86)
-(setf *backend-fasl-file-version* 6)
-;;; 2 = sbcl-0.6.4 uses COMPILE-OR-LOAD-DEFGENERIC.
-;;; 3 = sbcl-0.6.6 uses private symbol, not :EMPTY, for empty HASH-TABLE slot.
-;;; 4 = sbcl-0.6.7 uses HAIRY-DATA-VECTOR-REF and HAIRY-DATA-VECTOR-SET
-;;;     when array headers or data element type uncertainty exist, and
-;;;     uses DATA-VECTOR-REF and DATA-VECTOR-SET only for VOPs. (Thus,
-;;;     full calls to DATA-VECTOR-REF and DATA-VECTOR-SET from older
-;;;     fasl files would fail, because there are no DEFUNs for these
-;;;     operations any more.)
-;;; 5 = sbcl-0.6.8 has rearranged static symbols.
-;;; 6 = sbcl-0.6.9 got rid of non-ANSI %DEFCONSTANT/%%DEFCONSTANT stuff.
+(def!constant +backend-fasl-file-implementation+ :x86)
 
 (setf *backend-register-save-penalty* 3)
 
 (setf *backend-byte-order* :little-endian)
 
+;;; KLUDGE: It would seem natural to set this by asking our C runtime
+;;; code for it, but mostly we need it for GENESIS, which doesn't in
+;;; general have our C runtime code running to ask, so instead we set
+;;; it by hand. -- WHN 2001-04-15
+;;;
+;;; Though note that POSIX specifies (as far as I can tell)
+;;;
+;;;   sysconf(_SC_PAGE_SIZE);
+;;;
+;;; as a portable way of retrieving this information; a call to this
+;;; could be made in grovel-headers (which, strictly speaking, would
+;;; no longer solely be grovelling headers), though the question of
+;;; how to make this information appear in GENESIS, which is built and
+;;; run from host-1 files (which are made before grovel-headers runs)
+;;; would remain.  -- CSR, 2002-09-01
 (setf *backend-page-size* 4096)
 ;;; comment from CMU CL:
 ;;;