0.8.20.27:

[sbcl.git] / NEWS

diff --git a/NEWS b/NEWS
index 4caf632..4dc064d 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -20,6 +20,12 @@ changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20:
     are now more amenable to inspection by INSPECT.
   * workaround for bug 354: XEPs no longer appear in backtraces unless
     explicitly requested.
+  * fixed bug: receiving the signal which results from attempting to
+    write to mprotect()ed memory (SIGSEGV on Linux and some *BSDs,
+    SIGBUS on other *BSDs) on architectures where the C stack is also
+    the Lisp stack (x86 and x86-64) from foreign code no longer leads
+    to debugger confusion or wild instability.  (reported by Cheuksan
+    Wang)
   * fixed bug: COUNT and EQUAL no longer issue compiler efficiency
     notes when operating on objects known to be SIMPLE-BIT-VECTORs.
     (reported by Lutz Euler)
@@ -38,9 +44,16 @@ changes in sbcl-0.8.21 (0.9alpha.1?) relative to sbcl-0.8.20:
   * contrib improvement: SB-INTROSPECT handles more of SLIME's needs
     than previously; in addition, its test suite is now run on build.
     (thanks to Luke Gorrie)
-  * a more robust x86-64 disassembler. (thanks to Lutz Euler)    
+  * a more robust x86-64 disassembler. (thanks to Lutz Euler)
+  * optimization: added a immediate representation for single-floats 
+    on x86-64
   * fixed some bugs revealed by Paul Dietz' test suite:
     ** MISC.564: defined out-of-line version of %ATAN2 on x86.
+    ** attempting to create a package with a colliding nickname causes
+       correctable errors to be signalled.
+    ** MISC.572-574: :START1 and :START2 broken for simple-base-strings.
+    ** several x86-64 backend bugs related to sign-extension of immediate
+       operands.
 
 changes in sbcl-0.8.20 (0.9alpha.0?) relative to sbcl-0.8.19:
   * fixed inspection of specialized arrays. (thanks to Simon Alexander)