X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FStgCRun.c;h=be5843069f7d725e56df39f27a922999bac2a97e;hb=9d9784263ae1cb1d2add4b714ca676ca4b6cc22c;hp=d50bd677d148200c135d82bec59fe8b6215cfff4;hpb=34a98f40dea6d31ced5213b7810dc39b4989c395;p=ghc-hetmet.git

diff --git a/ghc/rts/StgCRun.c b/ghc/rts/StgCRun.c
index d50bd67..be58430 100644
--- a/ghc/rts/StgCRun.c
+++ b/ghc/rts/StgCRun.c
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: StgCRun.c,v 1.21 2000/11/13 14:40:37 simonmar Exp $
+ * $Id: StgCRun.c,v 1.23 2000/12/04 12:31:21 simonmar Exp $
  *
  * (c) The GHC Team, 1998-2000
  *
@@ -314,6 +314,7 @@ StgRun(StgFunPtr f, StgRegTable *basereg) {
    does the last paragraph above mean when it says "the top of the
    stack is used for globals"?  What globals?  --SDM
 
+   Updated info (GHC 4.08.2): not saving %i7 any more (see below).
    -------------------------------------------------------------------------- */
 	
 #ifdef sparc_TARGET_ARCH
@@ -343,6 +344,11 @@ StgRun(StgFunPtr f, StgRegTable *basereg) {
      * assembler.
      */
 #if 0
+    /* updated 4.08.2: we don't save %i7 in the middle of the reserved
+     * space any more, since gcc tries to save its address across the
+     * call to f(), this gets clobbered in STG land and we end up
+     * dereferencing a bogus pointer in StgReturn.
+     */
     __asm__ volatile ("ld %1,%0" 
 		      : "=r" (i7) : "m" (((void **)(space))[100]));
 #endif