From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Fri, 18 Nov 2016 23:39:42 +0000 (+0200)
Subject: lib: Add ATTR_UNSIGNED_WRAPS for disabling clang -fsanitize=integer
X-Git-Tag: 2.2.27~60
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=1868f86ec81626563ef048decb5d545181b0617e;p=thirdparty%2Fdovecot%2Fcore.git

lib: Add ATTR_UNSIGNED_WRAPS for disabling clang -fsanitize=integer
---

diff --git a/src/lib/macros.h b/src/lib/macros.h
index 36eb1584c2..566c176d19 100644
--- a/src/lib/macros.h
+++ b/src/lib/macros.h
@@ -184,6 +184,12 @@
 #  define likely(expr) expr
 #endif
 
+#if defined(__clang__)
+#  define ATTR_UNSIGNED_WRAPS __attribute__((no_sanitize("integer")))
+#else
+#  define ATTR_UNSIGNED_WRAPS
+#endif
+
 /* Provide macros for error handling. */
 #ifdef DISABLE_ASSERTS
 #  define i_assert(expr)