Changeset 14260

Timestamp:

Sep 15, 2010, 1:48:33 PM (14 years ago)

Author:

R. Matthew Emerson

Message:

In debug_show_fpu(), check to see if Linux's xp->uc_mcontext.fpregs is
NULL, and just return if so.

File:

• trunk/source/lisp-kernel/lisp-debug.c (modified) (2 diffs)

trunk/source/lisp-kernel/lisp-debug.c

@@ -1034 +1034 @@
 #ifdef X8664
 #ifdef LINUX
-  struct _libc_xmmreg * xmmp = &(xp->uc_mcontext.fpregs->_xmm[0]);
+  struct _libc_xmmreg * xmmp = NULL;
 #endif
 #ifdef DARWIN
@@ -1056 +1056 @@
   float *sp;
 
+#ifdef LINUX
+  if (xp->uc_mcontext.fpregs)
+    xmmp = &(xp->uc_mcontext.fpregs->_xmm[0]);
+  else
+    /* no fp state, apparently */
+    return debug_continue;
+#endif
 
   for (i = 0; i < 16; i++, xmmp++) {