Fix undefined function error on SPARC.

[sbcl.git] / src / code / sc-offset.lisp

diff --git a/src/code/sc-offset.lisp b/src/code/sc-offset.lisp
index 1811dd6..29c8636 100644 (file)
--- a/src/code/sc-offset.lisp
+++ b/src/code/sc-offset.lisp
@@ -16,6 +16,9 @@
 ;;;; We represent the place where some value is stored with a SC-OFFSET,
 ;;;; which is the SC number and offset encoded as an integer.
 
+;;;; FIXME: this layout is hardcoded in some .S files,
+;;;; undefined_tramp in at least mips/ppc/sparc-assem.S uses it.
+;;;; Ideally, it shouldn't be hardcoded.
 (defconstant-eqx sc-offset-scn-byte (byte 6 0) #'equalp)
 (defconstant-eqx sc-offset-offset-byte (byte 21 6) #'equalp)
 (def!type sc-offset () '(unsigned-byte 27))