Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/src/debugpred.h b/src/debugpred.h
new file mode 100644
index 0000000..4845a6e
--- /dev/null
+++ b/src/debugpred.h
@@ -0,0 +1,45 @@
+/* Support to debug branch prediction.
+ Copyright (C) 2007 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2007.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+
+#if DEBUGPRED
+extern const unsigned long int __start_predict_data;
+extern const unsigned long int __stop_predict_data;
+extern const unsigned long int __start_predict_line;
+extern const char *const __start_predict_file;
+
+static void
+__attribute__ ((destructor))
+predprint (void)
+{
+ const unsigned long int *s = &__start_predict_data;
+ const unsigned long int *e = &__stop_predict_data;
+ const unsigned long int *sl = &__start_predict_line;
+ const char *const *sf = &__start_predict_file;
+ while (s < e)
+ {
+ if (s[0] != 0 || s[1] != 0)
+ printf ("%s:%lu: wrong=%lu, correct=%lu%s\n", *sf, *sl, s[0], s[1],
+ s[0] > s[1] ? " <==== WARNING" : "");
+ ++sl;
+ ++sf;
+ s += 2;
+ }
+}
+#endif