1 files changed, 22 insertions, 0 deletions
diff --git a/libjava/win32.cc b/libjava/win32.cc
index c5f434029e0..af1163fbfa9 100644
--- a/libjava/win32.cc
+++ b/libjava/win32.cc
@@ -195,3 +195,25 @@ _Jv_platform_initProperties (java::util::Properties* newprops)
         break;
     }
 }
+
+/* Store up to SIZE return address of the current program state in
+   ARRAY and return the exact number of values stored.  */
+int
+backtrace (void **__array, int __size)
+{
+  register void *_ebp __asm__ ("ebp");
+  register void *_esp __asm__ ("esp");
+  unsigned int *rfp;
+
+  int i=0;
+  for (rfp = *(unsigned int**)_ebp;
+       rfp && i < __size;
+       rfp = *(unsigned int **)rfp)
+    {
+      int diff = *rfp - (unsigned int)rfp;
+      if ((void*)rfp < _esp || diff > 4 * 1024 || diff < 0) break;
+
+    __array[i++] = (void*)(rfp[1]-4);
+  }
+  return i;
+}