yaffs: Add dump_stack() to YBUG to give more info.

[yaffs2.git] / yportenv.h

diff --git a/yportenv.h b/yportenv.h
index 7a8397f0f0683a71f5678265b05d6807971ea20c..13cc1eb621783ebbfd7c860509593194dbf97d25 100644 (file)
--- a/yportenv.h
+++ b/yportenv.h
@@ -71,8 +71,8 @@
 #define YFREE_ALT(x)   vfree(x)
 #define YMALLOC_DMA(x) YMALLOC(x)
 
-/* KR - added for use in scan so processes aren't blocked indefinitely. */
 #define YYIELD() schedule()
+#define Y_DUMP_STACK() dump_stack()
 
 #define YAFFS_ROOT_MODE                        0755
 #define YAFFS_LOSTNFOUND_MODE          0700
@@ -153,9 +153,17 @@
 
 #endif
 
+#ifndef Y_DUMP_STACK
+#define Y_DUMP_STACK() do { } while (0)
+#endif
 
 #ifndef YBUG
-#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0)
+#define YBUG() do {\
+       T(YAFFS_TRACE_BUG,\
+               (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\
+               __LINE__));\
+       Y_DUMP_STACK();\
+} while (0)
 #endif
 
 #endif