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-rw-r--r--tools/objtool/warn.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/tools/objtool/warn.h b/tools/objtool/warn.h
new file mode 100644
index 0000000..ac7e075
--- /dev/null
+++ b/tools/objtool/warn.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2015 Josh Poimboeuf <jpoimboe@redhat.com>
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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/>.
+ */
+
+#ifndef _WARN_H
+#define _WARN_H
+
+extern const char *objname;
+
+static inline char *offstr(struct section *sec, unsigned long offset)
+{
+ struct symbol *func;
+ char *name, *str;
+ unsigned long name_off;
+
+ func = find_containing_func(sec, offset);
+ if (func) {
+ name = func->name;
+ name_off = offset - func->offset;
+ } else {
+ name = sec->name;
+ name_off = offset;
+ }
+
+ str = malloc(strlen(name) + 20);
+
+ if (func)
+ sprintf(str, "%s()+0x%lx", name, name_off);
+ else
+ sprintf(str, "%s+0x%lx", name, name_off);
+
+ return str;
+}
+
+#define WARN(format, ...) \
+ fprintf(stderr, \
+ "%s: warning: objtool: " format "\n", \
+ objname, ##__VA_ARGS__)
+
+#define WARN_FUNC(format, sec, offset, ...) \
+({ \
+ char *_str = offstr(sec, offset); \
+ WARN("%s: " format, _str, ##__VA_ARGS__); \
+ free(_str); \
+})
+
+#endif /* _WARN_H */
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