From: Mike Hommey <mh@glandium.org>
Date: Thu, 3 Feb 2022 23:48:06 +0000 (+0900)
Subject: ITS#9919 - Mark infrequently used functions as cold rather than manually putting... 
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b53474758f4fbcca2e76031017bbddfe92474e30;p=thirdparty%2Fopenldap.git

ITS#9919 - Mark infrequently used functions as cold rather than manually putting them in a separate section
---

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 6fc2abdf0a..fa01bb9bc5 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -248,15 +248,21 @@ union semun {
 # error "Two's complement, reasonably sized integer types, please"
 #endif
 
-#ifdef __GNUC__
-/** Put infrequently used env functions in separate section */
-# ifdef __APPLE__
-#  define	ESECT	__attribute__ ((section("__TEXT,text_env")))
+#if (((__clang_major__ << 8) | __clang_minor__) >= 0x0302) || (((__GNUC__ << 8) | __GNUC_MINOR__) >= 0x0403)
+/** Mark infrequently used env functions as cold. This puts them in a separate
+ *  section, and optimizes them for size */
+#define ESECT __attribute__ ((cold))
+#else
+/* On older compilers, use a separate section */
+# ifdef __GNUC__
+#  ifdef __APPLE__
+#   define      ESECT   __attribute__ ((section("__TEXT,text_env")))
+#  else
+#   define      ESECT   __attribute__ ((section("text_env")))
+#  endif
 # else
-#  define	ESECT	__attribute__ ((section("text_env")))
+#  define ESECT
 # endif
-#else
-#define ESECT
 #endif
 
 #ifdef _WIN32