0.pre8.25:

[sbcl.git] / src / runtime / mips-linux-os.c

diff --git a/src/runtime/mips-linux-os.c b/src/runtime/mips-linux-os.c
index f92a232..e9d9803 100644 (file)
--- a/src/runtime/mips-linux-os.c
+++ b/src/runtime/mips-linux-os.c
@@ -83,8 +83,17 @@ os_context_bd_cause(os_context_t *context)
 {
     /* We need to see if whatever happened, happened because of a
        branch delay event */
-    return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause 
-           & CAUSEF_BD);
+    /* FIXME: However, I'm not convinced that the values that Linux
+       puts in this slot are actually right; specifically, attempting
+       to compile sbcl with sbcl-0.7.7.7 lead to an "infinite SIGTRAP
+       loop" where a (BREAK 16) not in a branch delay slot would have
+       CAUSEF_BD filled. So, we comment
+
+        return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause 
+               & CAUSEF_BD);
+
+       out and return 0 always.  -- CSR, 2002-09-02 */
+    return 0;
 }
 
 void