Title: [6498] trunk/arch/blackfin/mach-common/entry.S: [#5120] Fix the last (I think) issue for defered hardware errors - so that while
- Revision
- 6498
- Author
- rgetz
- Date
- 2009-05-29 06:15:40 -0500 (Fri, 29 May 2009)
Log Message
[#5120] Fix the last (I think) issue for defered hardware errors - so that while
debugging with gdbserver, the kernel will not crash. With this fix -
the trace test runs overnight.
Modified Paths
Diff
Modified: trunk/arch/blackfin/mach-common/entry.S (6497 => 6498)
--- trunk/arch/blackfin/mach-common/entry.S 2009-05-29 09:42:37 UTC (rev 6497)
+++ trunk/arch/blackfin/mach-common/entry.S 2009-05-29 11:15:40 UTC (rev 6498)
@@ -200,7 +200,18 @@
cc = r7 == 0;
if !cc jump 1f;
#endif
-
+#ifdef CONFIG_EXACT_HWERR
+ /* Read the ILAT, and to check to see if the process we are
+ * single stepping caused a previous hardware error
+ * If so, do not single step, (which lowers to IRQ5, and makes
+ * us miss the error).
+ */
+ p5.l = lo(ILAT);
+ p5.h = hi(ILAT);
+ r7 = [p5];
+ cc = bittst(r7, EVT_IVHW_P);
+ if cc jump 1f;
+#endif
/* Single stepping only a single instruction, so clear the trace
* bit here. */
r7 = syscfg;
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